Think you can run a single carb on a stroker?

[Wallrat]

I plan on asking my builder as well but was curious if anybody had any insight into this one. I've got a +4 stroker with a mild dune port - far from extreme porting. Along with that I'm running T5's, v force 2's, and clamp on k&n's. Although I haven't gotten my jetting dialed in perfectly yet I'm only on 155 mains at sea level and about 80 degrees. Do you guys think I've got enough room to run a single carb setup? The PWK's go up to 230 on the mains and 80 on the pilots. Basically I wanna hear from anybody with a similar setup, or a stock stroke with some extensive porting done, since I would guess it'd be around the same. Anybody think this would be a problem? I'm just wondering if it'd be impossible to jet due to the larger differences in air flow between lower and higher rpms. Crud I dunno.

[Indubitably]

Yea U can do it, I've seen one of Richards ATV's drag 4mil bikes run a single carb on meth. He was only running a 38 or 39 can't remember exactly but u got it no problem.

[FASTOYS]

Might talk to Jeepman380 as he has been that route!

[brock_fuzzy_69]

if you want to try such a setup matt i have a graydon style single intake and a 38 mm pwk

 

i knew a guy who ran a 38 on a trinity intake with his 370 and it ran fine

[PUSH THE THROTTLE]

I was thinking I saw a 235 in Dennis Kirk but I could be wrong. I'll double check tonight as I can't find it on the website. the mains are $1.99 a piece which is the cheapest I've been able to find for the PWK. I'm interested to see how this turns out for you.

[fabricated]

you can try but good luck getting it jetted right.

[rocketboy]

yo u might still make decent power... but itll never be at its peak potential ,your really restricting the CFM flow alot by running only a 2-1 on a ported stroker IMO

[Justintoxicated]

too bad your not going thanksgiving, my friend has a trinity custom 5 mil from back when they were good, he runs a I believe 38 pwk with some sorta fuel injection system (injected into the carb not the motor) that is calibrated on a dyno. it increases fuel in the higher RPM range to make it flow similar to a dual carb, then again he runs NOS anyways so he might as well have that setup...

 

So it can definately be done.

 

I think he said he drills out his own jets too.

Edited November 15, 2005 by Justintoxicated

[FIRST BANSHEE]

I have a mild port stock stroke, trinity 2-1 with a 38mm. running a 220 main when it was 55-65 degrees here. worked great every where, except sixth gear in the sand, I need to get more fuel to the carb. good luck

[PUSH THE THROTTLE]

I have a mild port stock stroke, trinity 2-1 with a 38mm. running a 220 main when it was 55-65 degrees here. worked great every where, except sixth gear in the sand, I need to get more fuel to the carb. good luck

437456[/snapback]

That seems like alot of fuel on a mild port using a 38mm with a 220. I think I'm running a 195 with my gorr port stock stroke usiing a 35mm? Are you sure you're not bogging out in sixth gear cause of too much fuel?

[jeepman380]

I have the single carb setup with a 4 mil stroker and porting and it hauls ass. Can't really compare it to dual 35s cause i've never had that setup but it pulls from bottom to top really hard. I ride alot of trails too with no problem and I hardly ever bog. Extremely easy to jet too. I'm running a 210 main with a 56 or 58 pilot with my mods in my sig. I don't notice any bog in the sand in 6th. I've got 15/41 gearing also. I was thinking about switching to a 38 PWK to see how much of an improvement it makes over the 35 PWK.

[PUSH THE THROTTLE]

Here's where you can get the 235, last three digits are the size.

http://www.denniskirk.com/jsp/product_cata...afCatId=&mmyId=

[FIRST BANSHEE]

That seems like alot of fuel on a mild port using a 38mm with a 220.   I think I'm running a 195 with my gorr port stock stroke usiing a 35mm? Are you sure you're not bogging out in sixth gear cause of too much fuel?

437460[/snapback]

I don't think so but maybe, I only had the problem in the sand, trails and open roads no problems. before the port work I was running a 200 main with no problems, and everytime I jetted up I made a little more power on top. I won't be in the sand again until the dunes open back up in the spring.

[DUNEDEMON]

Kevin will probably try to talk you out of it, but see what he has to say. When did you get T5's?

[locogato11283]

I have the single carb setup with a 4 mil stroker and porting and it hauls ass.  Can't really compare it to dual 35s cause i've never had that setup but it pulls from bottom to top really hard.  I ride alot of trails too with no problem and I hardly ever bog.  Extremely easy to jet too.  I'm running a 210 main with a 56 or 58 pilot with my mods in my sig.  I don't notice any bog in the sand in 6th.  I've got 15/41 gearing also.  I was thinking about switching to a 38 PWK to see how much of an improvement it makes over the 35 PWK.

437467[/snapback]

ive got a 39mm pwk bored to a 40mm if u wanna go really big