I have always been curious about the size of velosity stacks that are available. Ive got a set of the stock 1.5in and a set of 6in. What are the pros and cons of each because these 6in ones just look sick as hell on my carbs.

I ran a 2387 on a DTS dyno & it made 20 fp more TQ at 2500 with 6" stacks over the 2" the tall stacks helped with fuel stand off.

So they will probably make a little more with some air actually running into them while running through the woods,right?

My eng ran better from idel up to 3500 .

was that with the air filters (and if so how tall ) or w/out ?

no air filters on the dyno . I run 9" tall with foam

what is this fuel standoff your talking about ?

if its when the fuel "mists" up in the air above the stacks i have that problem and was wondering what caused it and how to "fix"it if it is a problem or will make the buggy run better

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Just Stand On It!!!!

Chris

YES The intake valve opens before the piston reach top dead center so at low rpm when you open the throttle . Compression can go up the intake. In a nut shell that is why we run small cams & puting velosity stacks on make the intake loanger & keep the air going in the cylinder . call i can talk you through it 812-584-7644

You just side tracked me with your mention of small cams. In the last month or so, came upon some cam comparisons. Started wondering if Scats C-25 would be to small for a 2276cc with 1:1.25 rockers. If I remember right, it's similar to Engles 110. Don't know wether to start a new thread or not, but would like more info. Thanks Dave W.

Dave its the c-35 & 110

Thanks. So the C-25 probably is on the light side then. I know that there are a lot of variables, but any idea as to what kind of performance it might deliver?

My 2180 has a 110 cam. Im gonna run 1.25's on it which should give me .490 lift or so. I already have 4" stacks to run inside my 6" filters on my 40's. It should be on the torquey side. If I can fix the valve size issue easily with Turbo2332's heads Ill use the 44's on it if I get em. Either way 4" stacks are a good compromise.

Anybody run jet extensions? I always wondered if they help.

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A c-25 is a small cam in a 2276 . I think a c-35 or 110 would work better . c-25 272 ad dur .050 234 dur lift 1.25 ro .365 c-35 285 ad du .050 246dur lift 1.25 ro .476 w110 284 ad dur .050 247 lift 1.25 ro .490 But i do not no what parts you have or buggy or trans & so on