Props...what to buy?
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=9533
Printed Date: November-16-2024 at 3:00am
Topic: Props...what to buy?
Posted By: Brktracer
Subject: Props...what to buy?
Date Posted: January-31-2008 at 6:28pm
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With spring quickly approaching (not fast enough though) I'm starting to think about a new prop to get my SN running like it should. I've done some searching and it looks like these are rather expensive, but I live at the lake now so I'm sure I'll get my money's worth. I'm not sure what to buy though, and would rather buy one (not two)!
A couple months ago I asked about why my top speed wasn't what it should be and I got lots of help...thanks! http://www.correctcraftfan.com/forum/forum_posts.asp?TID=9254&PN=4&TPN=1 It doesn't appear my trans is slipping, so it looks like the prop is the culprit. Has anybody tried various props on an older hull (70's) and what were your results? Anybody have a prop close by that I can try out? I live in South Carolina on Lake Hartwell. Thanks, Matt |
Replies:
Posted By: bmiller
Date Posted: January-31-2008 at 6:43pm
| The best thing I can tell you is to call Delta prop and tell them what you have.They should be able to tell you what you need with what your trying to do. |
Posted By: TRBenj
Date Posted: January-31-2008 at 6:50pm
Or he could tell us what he's trying to do. There are lots of people here with lots of experience with different props on that hull. Matt, are you looking to ski? Cruise? Top speed? Fuel economy? Holeshot? ------------- |
bmiller wrote:Posted By: Brktracer
Date Posted: January-31-2008 at 6:53pm
I want to run 50+ mph like some others said they can. I should have plenty of hp. Worst case, I can ski with my current prop. |
Posted By: JoeinNY
Date Posted: January-31-2008 at 7:01pm
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How much horsepower and at what RPM? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1477 - 1983 Ski Nautique 2001 1967 Mustang 302 "Decoy" http://www.youtube.com/watch?v=cO5MkcBXBBs - Holeshot Video |
Posted By: Brktracer
Date Posted: January-31-2008 at 7:06pm
Currently it will run 5000-5200 max RPM. The prop I have feels like it has a lot of slip. 351W, 9:1 compression, fully port and polished heads, 1.94/1.60 valves, comp cams 218@.050 - 111 LSA, Performer RPM, 650 carb, MSD 6-AL ignition. Others may disagree but I'd say 300-325 hp. |
Posted By: JoeinNY
Date Posted: January-31-2008 at 7:16pm
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I was just making sure you weren't running an engine that needed to be up at 6k or something of the like. For that hull you probably cant go wrong with an oj legend 13 x 13 RH. Normally I would recommend an acme prop but Maddmarx put one on his boat last summer and he was not happy. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1477 - 1983 Ski Nautique 2001 1967 Mustang 302 "Decoy" http://www.youtube.com/watch?v=cO5MkcBXBBs - Holeshot Video |
Posted By: TRBenj
Date Posted: January-31-2008 at 7:16pm
Whats the lift? Who ported the heads? ------------- |
Posted By: behindpropeller
Date Posted: January-31-2008 at 7:50pm
And you are complaining about the cost of a prop?  ------------- |
Posted By: Brktracer
Date Posted: January-31-2008 at 8:50pm
I'm not complaining about the cost of one, I'm complaining about the cost of two! I'd like to do it right the first time if possible. Seriously, I need a prop for my race car too (rear end gears)! I have family that can help when it comes to engines. My father-in-law is a machinist and has been building stock and race engines for over 30 years (probably closer to 40). He ported the heads and cut them for the bigger valves. Also, milling, screw in studs, 3 angle valve job, and guideplates. His help saved me a lot! Bottom end is balanced and has ARP rod bolts. The cam lift is .456" This cam is basically PN 35-218-3 ground for reverse rotation. Only exception is the LSA is 111 instead of 110. It has 1.6 roller rockers. I would have expected a little more RPM than 5000 and I suspect the exhaust manifolds are holding it back a bit. The collector area is relatively small. Also a 750 carb would probably help. But, let's focus on the prop for now. Thanks, Matt |
Posted By: TRBenj
Date Posted: January-31-2008 at 9:05pm
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Id say youre about right with 300-320hp. If the heads were ported properly, they might flow equivalent to GT40's. At .456", the cam is fairly mild, but a little warmer than stock. Id say the prop is the culprit if youre not running 50.
Hopefully Alan (81Nautique) will chime in. His motor is comparable, and he has experience with a few different props on that hull. ------------- |
Posted By: 81nautique
Date Posted: January-31-2008 at 9:09pm
Matt, My 351 is very close to what you're running, I'm .030 over, 9.5:1, cam is .460 lift, gt40p heads and a performer. My carb is still a 600cfm Holley. I think you will have a hard time getting it to turn much over 5000 and get any benefit from it and the larger carb will be shot down by many here. I do agree with Joe about the Acme 540 , it is a great ski prop and you're boat should run tops 48-49 with it. I have an old Oj 13x13 that is my best all around prop and when my boat is tuned correctly and not loaded with peeps it will run 50-51 but the rpms will still not be much higher than 4700-4800. I can turn the Acme 540 which is a 13x12 at 5200 but there's no benefit in doing so. I absolutely agree with you that the exhaust is a major limitation but the options are expensive. The cost per MPH over 50 is rediculous. Edit: In case you hadn't noticed the little freindly bantering going on on another thread I'm looking at installing 1.7 ratio roller rockers this spring to help my fairly mild  cam selection. In all due respect to TRBenj, he suggested I didn't go hot enough when I spec'd all my components last year and after only 60 hours on the motor I'm fiddling for a little bit more.
------------- You can’t change the wind but you can adjust your sails |
Posted By: Brktracer
Date Posted: January-31-2008 at 9:10pm
I knew someone here has probably tried some different ones. |
Posted By: MaddMarxx
Date Posted: January-31-2008 at 11:37pm
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I tryed four props on mine!
1)federl 13x13=4900 rpm at 49.9 mph(not bad for stock prop) 2)acme 540 13x12=4800 rpm at around 48 or 49 mph (did not like it at all) 3)OJ 13x13 three blade 5300 rpm at 53.5 mph(this prop had a few nicks in it, but still worked good 4)oj 13x13 four blade 5200 rpm at 54.2 mph, the four blade was a monster out of the hole and a little better at the top(I liked it the best great power and top speed) good luck!! ------------- |
Posted By: TRBenj
Date Posted: February-01-2008 at 12:19am
I still cant figure this one out. The slower top end is understandable, but that thing should have been turning way more RPM's being down on pitch. It also should have been the fastest out of the hole by some margin, I would think. Very strange.
Alan, thats the name of the game. It will never be enough! My prediction is that there will be some seriously fast boats at GL this year. Too bad I wont be one of them ------------- |
Posted By: jbear
Date Posted: February-01-2008 at 12:46am
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Tim: I agree on the 540. Me and Eddie put mine on a few weeks ago and it would still do 50 per Eddie's new GPS but I had to turn 5600 to get it. To much for my old motor. With the stock Federal 13x14 she would hit 50 at 48 or 4900. I haven't tried my OJ 13x13 Legend (the "nicked-up" prop in MM's post) yet to see how it compares on my boat. MM did like this prop on his boat tho.
john ------------- "Loud pipes save lives" AdamT sez "I'm Canadian and a beaver lover myself"... |
Posted By: p/allen
Date Posted: February-01-2008 at 1:10am
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from TRBenj My prediction is that there will be some seriously fast boats at GL this year. Too bad I wont be one of them [/QUOTE]
Tim , You may not be in the running for the fastest boat , but I bet you will have 1 of the best looking Skiers there. ------------- Pat http://i175.photobucket.com/albums/w146/72ccfan/100_5977-1.jpg - My 72 Skier Rock River Dixon,ILL. |
Posted By: MaddMarxx
Date Posted: February-01-2008 at 1:12am
You can be if you switch to an OJ! Heres somthing to think about, some of the faster boats on this site all run OJs bill b=74mph(on NOS) boat dr=58 mph, so he says Marshall=57.5 mph reidp=56= 56mph and soon to be more me 54 mph= and soon to be more, I hope joe ??? whos boat should be up there when he works all the bugs out! ------------- |
Posted By: TRBenj
Date Posted: February-01-2008 at 1:21am
Thanks, Pat. One thing we have going for us is that there arent too many Skiers around! Mark, I was told the same thing yesterday by someone else in the know. Do you happen to know Jody Seal? I can tell you one thing- its going to take a lot more than a prop change to get the '90 running with you guys on the top end! ------------- |
Posted By: JoeinNY
Date Posted: February-01-2008 at 4:45am
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Well the prop can't hurt, but I dont think either tim or I can be in the hunt with our newer boats, I wouldnt rule us out when we get the old boats where we want them. I dont think bill b is running anything near an off the shelf oj, but he definitely was recommending thier products. I actually really like their xmp line but they dont have anything in the right rotation for the older correct crafts, there is however one on the mustang in my signature and it was a great prop low, top, and in the middle not as big as the acme and a shape more like the legend but very precise and well made. I am going to have to start over tuning my boat this year with a new cam and a new transmission but I hope someday she will be good for 54 mph on the motor, 58 on the bottle. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1477 - 1983 Ski Nautique 2001 1967 Mustang 302 "Decoy" http://www.youtube.com/watch?v=cO5MkcBXBBs - Holeshot Video |
Posted By: 8122pbrainard
Date Posted: February-01-2008 at 10:36am
Now there's a idea! Two props to get all that HP to the water!! Matt, Proping as you have read is a lot of trial and error. I would try one first and then you can get a second or simply use your exsisting as a backup. It sounds like you plan on hitting things!! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Brktracer
Date Posted: February-01-2008 at 11:10am
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These boats running in the mid-high 50's...which OJ prop do they run? What is done as far as engine work?
Thanks, Matt |
Posted By: 81nautique
Date Posted: February-01-2008 at 11:45am
Matt, the owners would have to chime in but boatdoc,, reid and marshall are all running smaller lighter boats than you. Bill is an former boat racer so although incredibly impressive he;s not the benchmark. MM's boat is what you should be looking at as far as a benchmark as you boats are similar. He'll have to let you in on the particulars as far as what's inside but I believe the biggest difference in mine and his is cam and compression ratio as I believe he's running flattops. He may or maynot decide to reveal all the specs on his motor as he's in the middle of a testosterone battle with the welterweights right now, and all things considered he's holding his own. ps. That's a joke by the way guys. The speed wars are good fun but out of my league right now that's why I try to keep the 81 looking good on the trailer. ------------- You can’t change the wind but you can adjust your sails |
Posted By: TRBenj
Date Posted: February-01-2008 at 11:50am
Im not sure Mark's boat is a good comparison either- he's got a freakishly fast hull. Mark, correct me if Im wrong, but you were topping out over 50 with the stock cam and heads, correct? If he throws more HP at the thing, I dont doubt he'll be running in the mid-upper 50's. ------------- |
Posted By: 79nautique
Date Posted: February-01-2008 at 12:27pm
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no Tim, Mark's isn't really stock at all, stock cam spec's but then through in the 1.7:1 rockers and then it changes the profile some. seems like the guy doesn't have it tuned quite right anyway with the prop and specs I woulf have thought it woulf have turned a few more R's than it did I know on mine it would do 6K with that size prop and that's why I sued the 460 but would have liked to try the 540 or mark's Oj ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: Brktracer
Date Posted: February-01-2008 at 1:20pm
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I was thinking my engine should be good for 5500 and was disappointed it only went 5000. But I know of a couple "issues" that I need to fix. I do know the prop is a problem though as 38-40 mph at 5000 is just wrong!
I do have a vibration between about 24 and 28 or so mph and suspect my prop might be bent slightly causing the vibration at these speeds and also causing cavitation (slip) at higher engine speeds. I'm far enough south I can play with it this time of year and it's still on the lift so it's just a matter of draining the water when I get back. I think I'll go ahead and take care of my "issues" and if anyone has a prop they don't mind me trying I'll cover the freight. I'd like to find what works best and I don't mind posting results. I need to install another distributor or convert mine to magnetic or laser pick up. I'm currently using points to trigger the MSD. This could be limiting my RPM. Also I have a 750 carb to try. I've never tried running on 93 octane and adjusting the timing either. I've only run 87 to this point. I'm assuming some of you are running the OJ 23102??? Matt |
Posted By: 79nautique
Date Posted: February-01-2008 at 2:21pm
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heres what you need to do
Get a real distributor, adjust the advance cuvre in the dist and adjust the Box settings, then go back and re-adjust the carb Oh and hire that out as it doesn't sound like your on top of your a game when it comes to tuning motors. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: BuffaloBFN
Date Posted: February-01-2008 at 4:50pm
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How many hours are on this engine? Are we assuming that the alignment is perfect and the shaft is straight? I'm only saying that it's easier to compare apples to apples...and I've learned miles about alignment and its effects since I've been a member here. ------------- http://correctcraftfan.com/diaries/details.asp?ID=2331&sort=&pagenum=12&yrstart=1986&yrend=1990" rel="nofollow - 1988 BFN-sold "It's a Livin' Thing...What a Terrible Thing to Lose" ELO |
Posted By: MaddMarxx
Date Posted: February-01-2008 at 5:17pm
good point..Buffalo, Eric gave me a call to tell me that my alignment was off and that it was robbing me of a few HP and that it wore a hole in the case, somthing I will have to fix when I put back in the boat! ------------- |
Posted By: jbear
Date Posted: February-01-2008 at 10:14pm
Matt: This prop is sitting in my garage doin' nothing if you wanna try it. It is a Legend. MM really liked it on his '80. It was a very good prop on my '80 as well but I have a new 540 that I am in love with (Thanks Mike). Of course I will need it back...don't want to sell it..just want to let you try it out. john PS: Hey 79...I think I need some of that stuff you were talking about..still have my points...can I hire you on your next visit? I mean as long as you are suggesting to Matt...well you know I ain't on top of my game under the motor box! ------------- "Loud pipes save lives" AdamT sez "I'm Canadian and a beaver lover myself"... |
Posted By: Brktracer
Date Posted: February-04-2008 at 1:15pm
I appreciate your invitation but will respectfully decline you offer. I came here to learn more about the boats I love and left other boards to get away from the personal attacks, name calling, and arguing. Matt |
Posted By: Brktracer
Date Posted: February-04-2008 at 1:21pm
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jbear: You have mail!
Matt |
Posted By: boat dr
Date Posted: February-04-2008 at 1:28pm
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Matt;
I came here to learn more about the boats I love and left other boards to get away from this type of thing. This is not a slam on you nor your expertise, it is Chris and his way of inviting you to the site. You will gain knowledge about these boats along with the differences between a "tractor" and "race car" engine. Two entirely distinct concepts,dont wear your feeling on your sleeve and be prepared to learn.Or you will leave with out sharing with us what you have learned.... Lots of HOT MOTORS have been tried but few come up the BAR, glad your here to share................Boat dr ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: 79nautique
Date Posted: February-04-2008 at 2:30pm
that wasn't a personal attack it was an observation based on what you have posted. You've spent a few bucks on the motor added a couple items most wouldn't have, scimped on some others and have very poor performance out of the packaged you have but together. So one of two thinks are wrong, you have assembled the wrong pieces to work together or you have not tuned the pieces you have properly. 5k and you are getting just over 40mph somethings wrong. I didn't have high compression, big valve heads, ported intake/heads/exhaust (I've got a set) , Didn't have a spark box (over kill), but did have a good ignition system and induction system that where tuned properly and ran 52 mph either with a Michigan Wheel or Acme prop used the Acme because I didn't want to turn 6K. So with your set-up something is way off and usually it's the guy turning the wrenches. No biggy to me you'll waste some more money and still be in the same boat scratching your head wondering why, nothing personal at all just a very well educated observation on my part. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: TRBenj
Date Posted: February-04-2008 at 2:40pm
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79, lets give him the benefit of the doubt here- he doesnt seem like he is overly familiar with Correct Crafts. A simple prop change may get him running just fine- and thats why he's asking the question. If a new prop doesnt result in an increase of 8+ mph, then we can start picking apart the tuning job. ------------- |
Posted By: 79nautique
Date Posted: February-04-2008 at 3:11pm
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Tim the prop isn't really going to make that big of a change to start with so it's the preverbial dog chasing the tail trick ignoring the obvious problem. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: TRBenj
Date Posted: February-04-2008 at 3:16pm
You might be right- lets wait and see. Ive heard of junk props doing weirder things. ------------- |
Posted By: 79nautique
Date Posted: February-04-2008 at 3:34pm
so let's regroup a little. Issue's that we know of that needs to be fixed long before you change props. 1. Align prop shaft to transmission/motor 2. Set dwell 3. Adjust timing. 4. Adjust carb rejet as needed. 5. Add otane boost or use 93/94 octane gas. So until you fix the know problems, changing props will do nothing other than ware you out chasing your tail. IGNORING THE OBVIOUS WILL NEVER FIX OR SOLVE ANY PROBLEM. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: Brktracer
Date Posted: February-04-2008 at 5:57pm
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1. Done. Can't fit .001 between the flanges.
2. Dwell does not matter with this set-up. The points are used as a trigger for the MSD (amplifier)...only. They only use about .1 volt in this configuration to trigger the MSD box. They simply act in a similar way to a magnetic or laser trigger. The coil does not charge through the points like a regular points set up. .1 volt vs 10-14 volts depending on wether or not a ballast resistor is used. As long as there is some contact the condition of the points is irrelevant. 3. Timing is set at 30 deg total (full advance). Experience with similar engines tells me it will like somewhere between 30-36 degrees. 4. Carb is spot on. 5. Will try 93 octane soon. Magnetic or laser pick-up is better to trigger the MSD at higher rpm as points can still "bounce." Here's why I think the prop is the problem: 30 mph at ~3,000 RPM 38 mph at ~5,000 RPM with noticable "slip" Throttle response is very crisp. Run 20 mph and nail it, boat nearly jumps out of the water. RPM's jump immmediately, boat plays catch up. Slip? I can't hold the rope trying to get up skiing. My wife has to feather the throttle. I pulled a muscle in my arm trying. The torque is incredible. There is a vibration between about 24-28 mph. Plugs look great on mixture and heat range. No miss, no ticking, no knocking, no smoke, no hesitation, clean plugs, heat range good, no plug fouling. Trans seems to work great at low rpm and fluid is spotless. Don't worry, I'm not going to chase props. I would just like to try a known, good prop, and go from there. Looks like John (jbear) is going to help with the prop. Thanks! I've focused my efforts on the race cars and spent little time tuning on the boat. Up to this point it was good enough for cruising and skiing on the weekends. Now that I've moved to the lake, I'd like to fix it up a little. Thanks for your advice, it is well appreciated. We'll get this one figured out. Matt |
Posted By: 79nautique
Date Posted: February-04-2008 at 6:02pm
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And base timing is what? don't agree that it doesn't make a difference on the points because it does, spark box or not the points have no effect of Voltage output or input. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: BuffaloBFN
Date Posted: February-04-2008 at 6:54pm
That's where your problem is...I think...or at least some of it. Your power delivery should be smoooth! ------------- http://correctcraftfan.com/diaries/details.asp?ID=2331&sort=&pagenum=12&yrstart=1986&yrend=1990" rel="nofollow - 1988 BFN-sold "It's a Livin' Thing...What a Terrible Thing to Lose" ELO |
Posted By: Brktracer
Date Posted: February-05-2008 at 12:01am
The vibration is coming from somewhere! A bent shaft can cause vibration. Could a bent shaft cause cavitation? Matt |
Posted By: SNobsessed
Date Posted: February-05-2008 at 12:46am
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I have vibration at mid range also ('89 2001 with 1.23). Upon inspection last Fall, I saw that the shaft is not centered in the front end of the strut - about .015 inch off center by eyeball. The shaft also isn't centered in the 'log'. I am going to put in a new strut bushing & get everything lined up to the best of my ability. I hope I don't have to reset the strut alignment but will if that is what it takes.
BktRacer, let me know what you find out! Chris |
Posted By: 79nautique
Date Posted: February-05-2008 at 10:30am
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both of you two need to read the post about how to align the prop shaft. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: SNobsessed
Date Posted: February-05-2008 at 10:57am
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79 - Thanks, have done so & am looking forward to using the feeler gage. However, the strut bushing has the rubber crushed on one side & a gap to the shaft on the other. Doesn't seem right so I am going to replace that 1st & make sure everything is on center.
|
Posted By: 79nautique
Date Posted: February-05-2008 at 12:01pm
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Duh if the bushing is wore out then yes it needs replaced first, but I wouldn't try removing the strut to do it. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: BuffaloBFN
Date Posted: February-05-2008 at 12:16pm
Sounds like it may be bent a little...the shaft could be as well. I've read here somewhere that 'if you hit anything, something is bent'. ------------- http://correctcraftfan.com/diaries/details.asp?ID=2331&sort=&pagenum=12&yrstart=1986&yrend=1990" rel="nofollow - 1988 BFN-sold "It's a Livin' Thing...What a Terrible Thing to Lose" ELO |
Posted By: SNobsessed
Date Posted: February-05-2008 at 8:23pm
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Buffalo - I can't see any damage but it is off center so far that I suspect something to be wrong. I saw someone else was going to use a laser pointer to check strut alignment against centerline of the hull - I'm going to try that.
Bktracer - sorry if I hijacked your thread - I just thought you may want to check your strut bearing - but got caught up in my own sad story! chris |
Posted By: BuffaloBFN
Date Posted: February-05-2008 at 8:45pm
------------- http://correctcraftfan.com/diaries/details.asp?ID=2331&sort=&pagenum=12&yrstart=1986&yrend=1990" rel="nofollow - 1988 BFN-sold "It's a Livin' Thing...What a Terrible Thing to Lose" ELO |
Posted By: Brktracer
Date Posted: February-06-2008 at 12:56am
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John aka jbear...I tried to email you through the site but didn't get a reply...maybe it didn't go through. Please email me at brktracer@hotmail.com.
SNobsessed...no problem. I'll keep updates coming. Matt |
Posted By: jbear
Date Posted: February-06-2008 at 1:40am
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Matt;
You've got mail. john PS; its on the way. ------------- "Loud pipes save lives" AdamT sez "I'm Canadian and a beaver lover myself"... |
Posted By: Brktracer
Date Posted: February-09-2008 at 1:25am
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I did some inspecting today and noticed that one blade on my Federal 13X14 is bent substantially enough that is visible. A good prop should be here soon and results will be posted as soon as they are available.
Thanks for all the help, Matt |
Posted By: Gary S
Date Posted: February-09-2008 at 2:42am
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Matt, I know our boats are not the same but I had similar results. With an old 12x13 Michigan,3000 rpm would give me 32.5, 4000 was 40 and 4800 43.1
I then tried my old 12x 13 Federal , 3000 30.8, 4000 38.1 and 5000 was 41.8, I always thought something wasn't right,but there was no one to ask who knew what they were talking about until I found Keith's site and met these guy's who had actual experence with these boats. I then got a 12x14 Federal from a member here and what a difference. 3000 was 34.4, 4000 was 42.3 and 4200 was 45 but the biggest and best change was that the bow rode higher at speed. All props were tried on the same day and checked with gps. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: jbear
Date Posted: February-09-2008 at 10:33pm
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Hey Gary: O.T. today? (saturday-9th) Or did you clean up on them 10 hour days?
john ------------- "Loud pipes save lives" AdamT sez "I'm Canadian and a beaver lover myself"... |
Posted By: Gary S
Date Posted: February-09-2008 at 11:11pm
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No John went to the Chicago auto show.But I did say yes for Sunday and now I see the high for tommorow is 2.Dooh! ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: jbear
Date Posted: February-09-2008 at 11:15pm
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Wow...that means double stamps all week!!
2 for tomorrow means lots of heater time staying warm. john ------------- "Loud pipes save lives" AdamT sez "I'm Canadian and a beaver lover myself"... |
Posted By: SNobsessed
Date Posted: February-19-2008 at 1:38am
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Hey TRBenj - I saw your advice on Acme 470 vs 1442 over on the 2001.com site. I forgot my password for that site so I am carrying it over here.
I'm going to buy one of these this spring. I'm rock stock this year & going to stay that way until next year - the planned truck purchase will cash me out & so the GT40 heads will have to wait. So my question is: Will the 1442 be OK with 240 HP? We wakeboard & wakesurf, my son just bought 2 fat sacks. Not so interested in top end, just want good midrange performance. Will a 1442 be any worse than the Federal 14x16 I now have? Thanks for your advice Chris ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: TRBenj
Date Posted: February-19-2008 at 10:58am
The 1442 will run circles around that old Federal! The only reason I recommend the 470 for a bone stock 240hp engine is because it will turn a few more RPM's, which helps performance. If you have an inkling that you'll be adding hp someday, go with the 1442. It will hands down outperform the old Federal in every single way, and you wont outgrow it when you add the GT40 heads. *Disclaimer: This post is a little off topic from this thread, as these 2 props in question pertain only to boats with the 1.23 transmission.* ------------- |
Posted By: SNobsessed
Date Posted: February-19-2008 at 8:14pm
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Thanks a bunch! 1442 it is.
It's great to get a recommendation form someone you trust & not just a salesperson. The Federal is the original equipment - has a few nicks & I thought it would be a waste of money to have it rebuilt. I can't wait for my shakedown cruise in April! Chris ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: TRBenj
Date Posted: February-19-2008 at 8:30pm
Dont mention it. If you have the opportunity, try both props back to back. That'll give you a lot of appreciation for how sweet these new Acmes run. Night and day difference. ------------- |