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Is 50 mph about right?

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=4819
Printed Date: May-23-2024 at 9:44am


Topic: Is 50 mph about right?
Posted By: tleed
Subject: Is 50 mph about right?
Date Posted: September-20-2006 at 11:57pm
It's official: the jetski I coerced into pacing me said my '69 Barracuda was doing 50 mph. That's a freshly-rebuilt Chrysler 318 with a few special enhancements and an ACME 540 3-blade prop. For some strange reason, the tach suddenly started working and claimed 4200 rpm. It wouldn't wind any higher.

So how does that mph stack up against the rest of you? My redline is at 5000 rpm and I'm wondering if I can get a little bit more if I can get the linkage to ask the motor for a few more rpm. I doubt the linkage is right, because I'm having trouble getting it to drop back down to idle after it's been wide open.

Thomas



Replies:
Posted By: TRBenj
Date Posted: September-21-2006 at 7:09am
50MPH could be about right, but I wouldnt trust the speedometer on the jetski- Ive seen some that are off 5-7MPH on the top end. If you can get your hands on a hand held GPS thats the most accurate measure.

If the tach is right, 4200RPM is pretty weak. I would think you should be pushing at least 4600-4800 if not more, depending on what youve done to the motor. Why do you say youre redline is 5k RPM? You can probably turn a little over that safely.

Play with the throttle on the carb by hand and see if your cable is getting the full range of travel. If it doesnt want to drop back down to idle, that could be a carb issue rather than a cable problem.

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Posted By: The Lake
Date Posted: September-21-2006 at 8:09am
Thomas,
When I got our boat, a SN with the 318 ReidP told me that those engines were designed to run wot at about 4200 rpm. I pushed mine up to 4500 a couple of times and speedo puts me at around 42mph. I can go more with it, but I like skiing and don't want to think of rebuilding, so never have pushed all the way to wide open. Keep in mind that I'm using my airguide speedo and I'm not sure how accurate my rpm gauge is. I also checked out a Chrysler Marine Engine Site they recommend the Chrysler LM318B 4000rpm at wot.
Chuck

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Walk on Water
www.coldwater.me


http://correctcraftfan.com/diaries/details.asp?ID=775&sort=&pagenum=3&yrstart=1966&yrend=1970 - 69 Ski Nautique


Posted By: 79nautique
Date Posted: September-21-2006 at 9:10am
low to mid 40"s is what your actually doing. With the 1:1 tranny as a general rule what RPM your at is also going to be about the same MPH your running.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: tleed
Date Posted: September-21-2006 at 12:07pm
5000 rpm redline was an estimate from memory. The redline on the tach is actually marked at 5300 rpm. I know that isn't the final word on what the motor is actually capable of doing, but I suppose it has some relationship to prudent operation.

No doubt I have cable and maybe carb issues. The carb was rebuilt last summer, but I'm not sure I have the cable hooked up just right.

When I shut down and re-start, the engine will idle properly, even though it was racing right before shut-down. It just doesn't return to idle after running. I need to putter around with the motor cover off and fiddle with the linkage to see what's actually going on, but I've been having too much fun just running to worry with the details.

Thomas


Posted By: 79nautique
Date Posted: September-21-2006 at 12:28pm
if it's not returning to idle then the spring is too weak or there is a vaccum leak. the issue with the canle is that you may not be opening the carb up as much as possible.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: Tim D
Date Posted: September-21-2006 at 12:32pm
Find someone who has gps, then you'll know how fast you are going. My Mustang is built to hold a constant 6,000 rpms, roller rockers etc, but it will never see it.



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Tim D


Posted By: Barracuda
Date Posted: September-21-2006 at 1:16pm
One thought here- check you distributor shaft play (up and down) make sure it's within spec. I had that issue in my Olds a few years back- It would idle just fine, but after being on the highway or high rpms, it would appear to idle really high- it was actually advancing the timing. Shimmed the dist and it was good as new- nice and constant.
-Brad

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Former:
http://www.correctcraftfan.com/diaries/details.asp?ID=759" rel="nofollow - '86 Nautique
http://www.correctcraftfan.com/diaries/details.asp?ID=507" rel="nofollow - '65 Barracuda


Posted By: stang72
Date Posted: September-21-2006 at 5:39pm
The speedos say 50 and we are happy! Gps...tells the truth! Even when you calibrate the speedos...uasually to 36 mhp based on tournament settings...the speedos will be slighty off at lower and higher speeds.
Anyone getting 45-50 (gps)on any of these older boats is running strong...anything that nears 50mph for a stock engine is exceptional!

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stang



Face plants are not that funny when it's you face!



http://www.correctcraftfan.com/diaries/images/3720/photo1.jpg" rel="nofollow - The Super Air






Posted By: 79nautique
Date Posted: September-21-2006 at 7:21pm
good thing you thru in the stock motor comment, I'm locking to get in the mid 50's with the new head install and AL exhaust manifolds come spring.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: stang72
Date Posted: September-21-2006 at 9:11pm
Thats hallin booty! I am hoping to get near 50 with the GT40's and allum. intake...I guess I still will be seeing just your stern...but a little closer

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stang



Face plants are not that funny when it's you face!



http://www.correctcraftfan.com/diaries/images/3720/photo1.jpg" rel="nofollow - The Super Air






Posted By: Munday
Date Posted: September-21-2006 at 10:41pm
I think you can get to 55-57mph with a small block with good heads and decent intake,spot on ignition.You might look at bypa$$ing some water out a thru hull fitting 79 when you upgrade the exhaust.

My buddy Tommy had a 79 SN that would run 52 as best we could figure by stop watch.Correct Craft couldn't believe us and sent a guy to watch.This was the summer of 81.All stock just hard use


Munday


Posted By: 81nautique
Date Posted: September-21-2006 at 10:49pm
Gary,

I get 49 out of the 81 , 351 with the 540 Acme topping out at 4800 rpms. That was with a hand held GPS. Dead stock except for a IE conversion kit and a rebuilt carb. I've toyed around with the idea of adding some bolt ons for performance but I hate to touch it until it breaks.


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You can’t change the wind but you can adjust your sails


Posted By: stang72
Date Posted: September-21-2006 at 11:04pm
Alan...you are running strong!I think I would leave it as it is!

55-57...that will require more than a couple bolt ons...IMO!

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stang



Face plants are not that funny when it's you face!



http://www.correctcraftfan.com/diaries/images/3720/photo1.jpg" rel="nofollow - The Super Air






Posted By: JoeinNY
Date Posted: September-21-2006 at 11:10pm
Yeah its sad that when all is said and done no matter what I do to my mustang or 2001 my fastest boat is still gonna be my 60 mph trimmed up 115hp outboard... but man does it sound way more bad a$$ in the correct crafts to do 47...

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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: The Dude
Date Posted: September-22-2006 at 12:02am
So Munday, what did CC say when they came to see your friend's boat? What's the end of the story?

I'd love to see more holeshot videos like Joe's. That boat almost jumps out of the water! Joe, I a$$ume you got your boat all back together and are going good again?

So what's really safe for your engine rpm wise? I've never even run mine WOT because my manual says top rpms should be 4400. I've run it up to 4800 for short bursts (5 seconds), but the last thing I want to do is damage this engine. What if I take it up all the way for 10-15 seconds?

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Mullet Free since 93
http://www.correctcraftfan.com/diaries/details.asp?ID=717&sort=&pagenum=1&yrstart=1991&yrend=1995 - 95 Sport


Posted By: tleed
Date Posted: September-22-2006 at 8:15am
My engine is far from stock. It's a 318, but it now has 9.2 compression, a roller cam slightly warmed over stock, and fully ported and polished heads.

79 nautique: if all other factors were stock, are you suggesting that changing from the factory prop to the ACME 540 would add no mph to the top end?

Thomas


Posted By: TRBenj
Date Posted: September-22-2006 at 8:31am
From what Ive read, you should gain 1-2 MPH of top end with the 540.

Tleed, Im curious- where did you find that reverse rotation roller cam? I know that they are no longer available for the Fords (flat tappet only)... are there still some available for the SB Chrysler?

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Posted By: 79nautique
Date Posted: September-22-2006 at 9:29am
Originally posted by tleed tleed wrote:

79 nautique: if all other factors were stock, are you suggesting that changing from the factory prop to the ACME 540 would add no mph to the top end?


don't know where you came up with that crap but 1-2 at most and that's with a gps and not some other boat running beside you or from the speedo's in your boat which are only good for between 30-40 if calibrated right otherwise there not acurate.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: Riley
Date Posted: September-22-2006 at 10:37am
Originally posted by 79nautique 79nautique wrote:

good thing you thru in the stock motor comment, I'm locking to get in the mid 50's with the new head install and AL exhaust manifolds come spring.


Better add a helicopter turbine to your list of mods if you want mid 50s in a 79 Nautique.


Posted By: 79nautique
Date Posted: September-22-2006 at 10:57am
I'm already at 52 mph on a GPS and use a prop that is for the 1.23:1 trannied motors (13x15.5 .110 of cup)

So with the new heads that have 57cc combustion cambers and 1.94/1.60 valves with .600 lift springs, stud mount scorpion roller rockers, aluminum edelbrock exhaust manifolds and a re-curved distributor advance, I don't see it as much of an issue getting a three or four MPH out of it with those mods.

guess you didn't know the motor was all ready .020 over, balanced and has a decent cam, aluminum intake and a re-jetted Holley, and a completely rebuilt drive line. now did ya? didn't think so. You can ask Gary and Brian they saw enough of the back end of my boat at GL and it wasn't even tuned up then.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: TRBenj
Date Posted: September-22-2006 at 11:00am
Originally posted by Riley Riley wrote:


Better add a helicopter turbine to your list of mods if you want mid 50s in a 79 Nautique.


Thats a pretty ignorant comment. I dont doubt the speeds '79 is running considering what hes done to his motor and the hull he's running on. Why would you think adding 10 MPH to the top end is so difficult?

I want to see Bill's (SS-201) Nautique that'll do 70. Now that's something to shoot for.

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Posted By: boat dr
Date Posted: September-22-2006 at 11:57am
79nautique,with the rest of the mods waiting for the install,i know the engineer gears are turning ,whats next??????????   331 or 347 stroker w/twin turbo's or the counter rotating Paxton? idle minds promote evil thoughts..............boat dr

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boat dr

/diaries/details.asp?ID=4631 - 1949 Dart
/diaries/details.asp?ID=1533 - 1964 American Skier


Posted By: TRBenj
Date Posted: September-22-2006 at 12:04pm
He's got a 351w, so I doubt a 331 or 347 is the way to go

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Posted By: Riley
Date Posted: September-22-2006 at 12:25pm
Originally posted by TRBenj TRBenj wrote:

Originally posted by Riley Riley wrote:


Better add a helicopter turbine to your list of mods if you want mid 50s in a 79 Nautique.


Thats a pretty ignorant comment. I dont doubt the speeds '79 is running considering what hes done to his motor and the hull he's running on. Why would you think adding 10 MPH to the top end is so difficult?

I want to see Bill's (SS-201) Nautique that'll do 70. Now that's something to shoot for.


I don't doubt what 79 says. If he's getting 52 GPS now, that is screaming and I'm impressed. It get's really tough to add speed once you get near 50 with these boats. They weren't designed with high speed in mind, but maybe that older hull gets up out of the water and it'll happen.


Posted By: 79nautique
Date Posted: September-22-2006 at 12:37pm
trust me it will happen, just picked up the last piece I need to plumb the exhaust thanks Eric for the tip about Horne marine, Stopped over this morning almost got another set of aluminum Ex manifolds but he didn't have the elbows that went with them.

Jbear no luck on anything that will work with yours, thought about the set of nicson's laying there but I don't now where I could source the elbows that they need, they need to have the pa$$ thru waterjacketed elbows and everything I've seen new are the closed end return style like mine.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: tleed
Date Posted: September-22-2006 at 1:30pm
My source for the reverse rotation roller cam swore me to secrecy. Seriously. Said he didn't want a run of special orders for them. They did not come from the factory and nobody has them laying around. They do not exist in the wild. In fact, I'm almost willing to bet I have the only one.

Suffice it to say that it's the most expensive part in my engine. But if you're really interested in getting one, maybe I can point you in the right direction.

I used a 1990 truck 318 because my block was cracked. And I wanted a roller cam. And higher compression heads.

My poorly calibrated seat-of-the-pants tells me I'm well above 40 mph. How much is up for discussion. Guess I'll have to track down one of those gps thingies.

Thomas


Posted By: TRBenj
Date Posted: September-22-2006 at 2:08pm
Originally posted by tleed tleed wrote:

My source for the reverse rotation roller cam swore me to secrecy. Seriously. Said he didn't want a run of special orders for them. They did not come from the factory and nobody has them laying around. They do not exist in the wild. In fact, I'm almost willing to bet I have the only one.

Suffice it to say that it's the most expensive part in my engine. But if you're really interested in getting one, maybe I can point you in the right direction.

I used a 1990 truck 318 because my block was cracked. And I wanted a roller cam. And higher compression heads.

My poorly calibrated seat-of-the-pants tells me I'm well above 40 mph. How much is up for discussion. Guess I'll have to track down one of those gps thingies.

Thomas


Thats pretty cool. I dont need one right now- I just saw a '72 Skier in the cla$$ifieds with a 273 so it got me to thinking...

Do you think he could do a reverse rotation Ford roller cam, or is he a Mopar guy? Ill keep your setup in mind just in case!

What year boat do you have, by the way? I a$$ume your original motor was a Chrysler?

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Posted By: tleed
Date Posted: September-22-2006 at 2:58pm
My boat is a '69 Barracuda and the original motor was a 318 Chrysler. I'm a Mopar guy; my source is not. I don't know if he can do reverse rotation Ford cam, because I didn't talk to him about that, but if anybody can, he can.

The real problem is not so much grinding one, but finding or making a core. If you can find the core, you're pretty much home free. My source had one core available last spring and I got it.

Thomas


Posted By: nuttyskier2002
Date Posted: September-23-2006 at 2:20am
Has anyone tried Competition Cams in Memphis, Tenn? They claim to have more types of cores than any other cam grinder and they definitely DO grind marine cams. They have a website with a very extensive catalog on line. Also they will grind you a cam to any specs you want.

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95 Malibu Echelon w/Mercruiser 350 Magnum Skier

Former boats:
88 Ski Centurion Tru Trac II
59 Chris Craft Capri (woody)


Posted By: tleed
Date Posted: September-24-2006 at 1:27am
I tried Comp Cams (and many others) before I got the guy who made mine. None of them could do it. Took me a while to discover the problem. It's not that they can't figure out how to grind it. It's that they don't make the cores.

See my previous post.

It's not a matter of finding someone who will grind it. It's a matter of finding the core. Ask Comp Cams who supplies their cores.

Thomas


Posted By: 79Tique
Date Posted: September-27-2006 at 12:09pm
Anyone have experience with what to expect for top end speeds on a Ski Tique. Mine is a 79 with a 302 Commander, Holley carb, and a few other mods. I do a lot of skiing with the boat and my family is almost always along so I don't get much of a chance to open it up. Two weeks ago we had gla$$ smooth water and I gave it all she had and the stock air guide speedo was smoothly pa$$ing 45mph and my ignition coil cut out. It seemed like the boat was going to hit 50 smoothly but it all stopped when the coil cut out. The Tiques are smaller and lighter any one know what they do?

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Work to live, not live to work.



Posted By: 79nautique
Date Posted: September-27-2006 at 12:17pm
your still only going to get in the mid 40's with it. Over 35mph the speedo's are not acurate so unless you have a gps the speedo means nothing.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: 79Tique
Date Posted: September-27-2006 at 12:50pm
Ok. When my coil cut out I bought a new coil from a auto perts store for $17.00 and the boat started right up. I noticed after the new coil I seem to have lost a little power. Is there any difference in the performance of different coils?

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Work to live, not live to work.



Posted By: 79nautique
Date Posted: September-27-2006 at 1:33pm
depends weather you bought a resistance coil or a non resistor coil. and weather or not you bypa$$ed the ballast resistor and weather or not you have an electronic dist or a conversion kit. Sounds like you didn't get the right coil or ask any questions and a$$umed that all coils are the same, So if all you did is a$$umed then all that did is make an a$$ out of you for a$$uming wrong.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: TRBenj
Date Posted: September-27-2006 at 1:48pm
I think it may be possible to hit 50MPH with a stock Tique. 220hp is a lot for a 16' boat- I know my neighbor's Tique screams. Its just a guess, but the 16'5" hull may be faster than the older 16' Mustang hull since it doesnt have a hook to it.

At the very least, I would think you'd hit 45-48 without a problem.

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Posted By: 79Tique
Date Posted: September-27-2006 at 3:00pm
Yeh it seems pretty fast. When the speedo is reading 45 it feels a lot faster that when it's reading 35. I think it's accurate around 35 mph because good skiers never complain about the speed I'm towing them at.

79n. as far as the coil it was sunday in a small town near the lake. I took the old one in to the store and the guy gave me this one. He had a lot of experience hot rodding old Ford cars and seemed to know what he was talking about. I was just stoked to have broken down on a sunday morning and an hour later be back on the water.

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Work to live, not live to work.



Posted By: 79nautique
Date Posted: September-27-2006 at 3:48pm
you need to know weather or not the coil you bought has an internal resistor or not, if it does then the voltage is going to be lower and the spark not as good and a lose of power. Did the guy ask you if it had points, a ballast resistor or did he just give you one for a ford 302 car application with an oil filled coil. Marine is not the same as a car and yes some times you can use automotive parts but not all of the time and a oil filled isn't going to last long in a boat.

Coming accros as knowledgable to someone that doesn't know anything can be impressive, But trying to be knowledgable to someone that all ready knows makes that same guy look stupid to the person that is truly knowledgable and unimpressed.

The same way that my speeds never read 50 mph and are lucky the read 45 yet I know for a fact that it is running over 50 mph because I have used a GPS to verify what it is running. Hell I can run mine against my buddie's ba$$ boat and you would thing that mine runs over 60 comparing it to his speedo. Point being if it's not a GPS speed, hand helds don't count, then it really isn't acurate and you can think what you want but your not going as fast as you think you are.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: Riley
Date Posted: September-28-2006 at 8:56am
[QUOTE=79nautique]
, hand helds don't count, QUOTE]

Huh?


Posted By: 79nautique
Date Posted: September-28-2006 at 9:16am
hand held GPS signals are slower or don't sample at the same rate for lack of a more technical term. They are more for walking in the woods and navigation not speed and ETA's and way points

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: 75 Tique
Date Posted: September-28-2006 at 9:33am
Originally posted by 79Tique 79Tique wrote:

Anyone have experience with what to expect for top end speeds on a Ski Tique. Mine is a 79 with a 302 Commander, Holley carb, and a few other mods. I do a lot of skiing with the boat and my family is almost always along so I don't get much of a chance to open it up. Two weeks ago we had gla$$ smooth water and I gave it all she had and the stock air guide speedo was smoothly pa$$ing 45mph and my ignition coil cut out. It seemed like the boat was going to hit 50 smoothly but it all stopped when the coil cut out. The Tiques are smaller and lighter any one know what they do?


Admittedly, I am only going by a 30 year old speedo, but my Tique (all 1,600 pounds of it) with the chevy 305/230HP/Edelbrock/12x14 is reportedly doing about 52. Sure feels (and sounds) like it.

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_____________
“So, how was your weekend?”
“Well, let me see…sun burn, stiff neck, screwed up back, assorted aches and pains….yup, my weekend was great, thanks for asking.”


Posted By: 79nautique
Date Posted: September-28-2006 at 9:42am
since the speedo's don't go that high what are you using to verify the 52mph a hand held gps? or a nice quality GPS unit with chart plotting and acurate speed data, or another boat running along side of yours?

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: 75 Tique
Date Posted: September-28-2006 at 9:53am
I'll have to check top speed on the speedo tonight, I don't recall. Might be 55, but I know its not pegged when reading 52.

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_____________
“So, how was your weekend?”
“Well, let me see…sun burn, stiff neck, screwed up back, assorted aches and pains….yup, my weekend was great, thanks for asking.”


Posted By: 79nautique
Date Posted: September-28-2006 at 10:11am
oh so your basing it on the speedo on the boat and not a GPS device. Keep telling yourself it's going faster than it is.

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http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique


Posted By: stang72
Date Posted: September-28-2006 at 10:18am
Larry,

A Tique with a fresh and strong stock motor can see 50mph I believe and with a couple bolt on performance parts(heads ...intake)...maybe 52mph. You won't really know unless you use a gps! Those Airguide speedos...only are accurate in a range! So..if it's calabrated at 36mph(standard speed for cal)...it will read a tad off at say wakeboard speed 20-24...and can be off as much as 2-4 mph on the top.Anyway...if you are at 50 or higher, the Tique is running damn fast!

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stang



Face plants are not that funny when it's you face!



http://www.correctcraftfan.com/diaries/images/3720/photo1.jpg" rel="nofollow - The Super Air






Posted By: 75 Tique
Date Posted: September-28-2006 at 10:19am
That is what I said and I did caveate my remarks by acknowledging it was only by the speedo and I did say "reportedly". Don't know if I could have been any clearer on the fact that it was questionable (but relevant, i.e. refecting my experience, as 79 Tique asked) data.

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_____________
“So, how was your weekend?”
“Well, let me see…sun burn, stiff neck, screwed up back, assorted aches and pains….yup, my weekend was great, thanks for asking.”


Posted By: JoeinNY
Date Posted: September-28-2006 at 10:48am
Not all speedos are created equal. Between 12mph and 47 mph both my airguides and my perfect pa$$ paddle wheel speed all stabilize within a half mile an hour of my gps unit. The only time there is a real difference is in a river with significant current. My jetski speedo however is a well practiced liar, but if it makes my friends happy to think that the 46 they are going is really 52 who am I to tell them different.

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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: stang72
Date Posted: September-28-2006 at 11:06am
I guess reporting speed by use of speedo is not really relevant if fact rather meaningless!And yes I acknowlege that you were not claiming accurate measure of speed...no intention to offend!

I was only stating that a tique can see 50mph (as does my mustang...same hull and wieght)...which is darn good! And that the speedos very quite a bit at the top end...30 year old ones or even a new one(if you could find one).In fact...my 84 MC is dead on with the gps at 36mph...pegs the speedo at 50 (gps reads 45) and I never have heard of one of those boats doing better than 45 mph. That would be 5 mph off at top speed!

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stang



Face plants are not that funny when it's you face!



http://www.correctcraftfan.com/diaries/images/3720/photo1.jpg" rel="nofollow - The Super Air






Posted By: stang72
Date Posted: September-28-2006 at 11:30am
Joe...very true! All of my airguides when calibrated at 36mph...are vary differently at higher speeds...one reads about two mph off...the worse is as much a 5mph.
And it gets even stranger!The MC was reading 2mph too high at 36 and 4 mph(not pinning) to high at top speed...I calibrated it to read correctly at 36...now it pins at top speed!

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stang



Face plants are not that funny when it's you face!



http://www.correctcraftfan.com/diaries/images/3720/photo1.jpg" rel="nofollow - The Super Air






Posted By: 75 Tique
Date Posted: September-28-2006 at 11:32am
Stang, I wasn't barking at you, I posted that response to 79 before your post showed up. I should have left this thread alone. I was just telling 79 Tique my story. I am not into speed and don't really care about it. My son rides at 20, I ski at 32, and foot at 39-40. Anything above that is gravy. In fact I am amused by the folks that talk about dropping all kinds of money on props or other add-ons and say it got them an extra 1-2 mph. Hardly seems worth it to me. However, since I am not one to criticize others on this site, I will say if it makes them happy they should do whatever they please.

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_____________
“So, how was your weekend?”
“Well, let me see…sun burn, stiff neck, screwed up back, assorted aches and pains….yup, my weekend was great, thanks for asking.”


Posted By: stang72
Date Posted: September-28-2006 at 11:55am
Oh...in that case...never mind!

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stang



Face plants are not that funny when it's you face!



http://www.correctcraftfan.com/diaries/images/3720/photo1.jpg" rel="nofollow - The Super Air






Posted By: 75 Tique
Date Posted: September-28-2006 at 12:18pm
   Oh....Nevermind

-------------
_____________
“So, how was your weekend?”
“Well, let me see…sun burn, stiff neck, screwed up back, assorted aches and pains….yup, my weekend was great, thanks for asking.”



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