carb spacer

Should I use the stock carb spacer or not, with a Weiand stealth intake ?

I reused my spacer. Im thinking of going with an open spacer instead of the 4-hole, though.

I would say 50mph is a reasonable goal with that engine package in a 2001 hull. Out of curiousity, why the 1.7rr's if you upgraded the cam? You could have stuck with the stock 1.6 ratio, right?

Tim I found this information about carb spacers thought you might be interested before modding yours.

Carb Spacers

I have managed to source a Stealth intake also. Went through your old threads and found that I will have to shorten or change flame arrestor to fit the spacer with the Stealth. I have 2" clearance at the moment looks like I need 2.5".

Yes, CC's appear to have specified a much taller arrestor than was typical on the PCMs you see on other boats.

[QUOTE=TRBenj] The $120 pricetag hurts though!
QUOTE]

Tim good news, with the exchange rate it's only $111    

lewy2001 wrote: TRBenj wrote: If youve got 2" of clearance, then you may luck out. 2" is about the shortest arrestor you can fit on a Holley and not have it too hung up on the j-tubes. Thats what Ive got on my boat. May have misled you a bit. I have 2" available above the existing arrestor with the PCM cover on it. The Stealth is 2.5" taller than the standard manifold according to the old posts. So I will need to adjust either the arrestor or engine cover.

Gotcha. Either way, you should be good by swapping arrestors. I assume your stock piece is 3" tall?

All right I'm curious. Can I bolt one of these intakes on without any other mods? And second, is it the 8023 for our engine?

who carrys a 2 inch spark arrestor , didnt see one at skidim ,getting ready to install edelbrock perfomer manifold and looks like im going to have clearance issues

didnt know that pete thanks ,i waz wondering if i could just cut down the one i have ?

Try Googling E basic power. I got one from them a while back.

SS 201 wrote: If you put 1.7 rockers on the intake valves you can gain some more power......This way it allows the valve to open sooner and more fuel to come in the cylinder.

This may be a small detail but the 1.7 rockers shouldn't make any change in when the valves open, that would require a different cam. It will allow them to open up further however.

LaurelLakeSkier wrote: SS 201 wrote: If you put 1.7 rockers on the intake valves you can gain some more power......This way it allows the valve to open sooner and more fuel to come in the cylinder. This may be a small detail but the 1.7 rockers shouldn't make any change in when the valves open, that would require a different cam. It will allow them to open up further however.

SS 201 wrote: It does, do the math, done every day. It was suggestion I guess this forum doesn't want to learn, Now I know why I quit posting, never changes.

I'd like to see the math on the concept. I'm totally open to learning whatever the result shows however am curious how the rocker ratio will change when the valves open. I would think a cam profile change would be needed as well.

BTW, this is a forum of open discussion with different views. I'm sure by now you have run into many different opinions but haven't learned to listen to different opinions. I'm sorry to hear that you will be no longer posting as I do know you have many years of engine experience behind you. Make sure you provide the math before you stop posting!!

EDIT:
Doing a preliminary search, I was able to find this. Looks like all the opening and closing points are the same with different ratio rockers.



Maybe more math is needed!!

Sometimes the way people describe things really doesn't get the point across. Pete's graph shows that the valves don't open any sooner BUT higher ratio rocker arms do in effect change the profile of the cam. You'll see that not only do the valves open to a higher lift but they open "faster" evidenced by the wider curve in the graph, I think this could easily be misinterpreted as opening sooner. Either way you want to call it the advice to install 1.7 rockers is good bang for the buck without having to go with a new cam.

Only question I have is why only on the intake valves?

LaurelLakeSkier wrote: SS 201 wrote: If you put 1.7 rockers on the intake valves you can gain some more power......This way it allows the valve to open sooner and more fuel to come in the cylinder. This may be a small detail but the 1.7 rockers shouldn't make any change in when the valves open, that would require a different cam. It will allow them to open up further however.

SS 201 wrote: It does, do the math, done every day. It was suggestion I guess this forum doesn't want to learn, Now I know why I quit posting, never changes.

Your suggestion on using the 1.7 rockers to give a performance boost was a good one. As I said, I was just trying to clear up a small detail in your explanation as to why they worked. I think most of us are on this forum to learn from others.....