should i stick with stock carb?

[B_RAD_BALLA]

i have a sn superjet with a coffman sizzler, and high comp head, should i run a stock 44 or will i get a lot of gain from dual 44s? im new to this site so go easy on me if im being retarted. also, is the coffman sizzler a good pipe? it only has 2 rings on it so im assuming its set up for top end unfortunately.

thanks,
Brad

 

[B_RAD_BALLA]

anyone?

 

[Matt_E]

The Coffman sizzler is a fine pipe.
I wouldn't go to dual carbs on your engine, because the cases are really best with a single carburetor.
You would probably benefit from a better, larger single carburetor.

 

[brett]

on my boat i run a stock single carb 701 with a head and factory b-pipe. my brothers boat has a stock 701 with a coffmans sizzler. i am very surprised on how close they are on the bottom end.....

sounds like you have a good setup

 

[B_RAD_BALLA]

sweet. thanks. i think i need a higher rev limiter. it bangs hard outta the hole. i dont really want to do the ghetto mod. any sugestions on what to go with?

 

[Matt_E]

An MSD Enhancer would do the trick.

 

[B_RAD_BALLA]

awesome. thanks for the knowledge!

 

[tmoney8772]

Do you have to have a pipe to see any gain from a larger carb. i have a stock 650 with a mikuni 34 and was thinking of up grading to a 44 or 46

 

[stanton]

sweet. thanks. i think i need a higher rev limiter. it bangs hard outta the hole. i dont really want to do the ghetto mod. any sugestions on what to go with?

why you call it ghetto?

 

[B_RAD_BALLA]

i meant i didnt want to do it myself but i picked up a protec one. idk how high to turn it up though...?

 

[Matt_E]

All the way.

Your finger is your rev limiter.

 

[tor*p*do]

you dont want duals in the surf anyway!
single = cheaper to rebuild, easier to tune, etc

 

[Matt_E]

you dont want duals in the surf anyway!

Why?

single = cheaper to rebuild, easier to tune, etc

How often do you rebuild your carb?
How often do you tune your carb?

 

[sflsurfrider]

check out this carb/intake setup....

http://www.x-h2o.com/threads/53121

 

[B_RAD_BALLA]

oh cool ill turn it up then

 

[Dustin Mustangs]

So how about the worth of upsizing a single carb on a limited(ish) 61x in a surf application? I would expect gains high in the powerband but how would low to mid range be affected??

I'm in this same boat right now (but don't want to go to duals ona 61x) and am wondering if it would be worth it with no porting done.

 

[SUPERTUNE]

So how about the worth of upsizing a single carb on a limited(ish) 61x in a surf application? I would expect gains high in the powerband but how would low to mid range be affected??

I'm in this same boat right now (but don't want to go to duals ona 61x) and am wondering if it would be worth it with no porting done.

Yes,
A wetjet or aftermarket 46mm (4 hole circuit) will help a little every where with some really good compression with Factory Pipe b limited setup w/ MSD enhancer.
A good impeller too.

I assume your running the stock 61X 44mm carb?
(3 hole circuit)

 

[Dustin Mustangs]

Yes, stock carb and manifold now, with a couple of screens removed from the stock f/a. Other than that I've just got a mildly high compression head, a bpipe (both chambers to choose from), concord 13/17 and a top loader grate.

I don't have any experience with this on a two stroke but I know on a four stroke being a bit undersized intake side may actually make more low end power because it keeps the velocity up and also provides a better signal to the carb.

What I don't want to do is spend the last of my budget on a carb for minimal gains or if I'd be better off putting the money elsewhere (Enhancer, lightened flywheel, porting, ect?).

 

[ryan]

i have a set of 46's on a 61x 701 stock port .b pipe, msd,ada 180 psi, 140 mag pump.and all i ride is surf runs great. way faster then any single i have ever rode.