Carburetor ????

[missouritrailrider]

Which aftermarket carb is the best one for the warrior?

 

[dave76]

Which aftermarket carb is the best one for the warrior?

My opinion, the Edelbrock especially if your not familliar with carbs because it easy as hell to adjust.

 

[paulie1959]

your not going to gain any performance changing to aftermarket carbs and ther very pricey, the stock carb jetted works very good, if you what, to try ebay for a used mikuni 36 BSR there on the raptor 350, kaw 400 and susuki 400, they meter fuel a little better and have a easy throttle pull ahd ther not pricey I pick one up for $10 with a dynojet kit

 

[missouritrailrider]

Well, i planned on putting a 10.5-1 piston, powercore 4 slip-on, k&n with lid drilled, web .430 cam, KW valves, springs, retainers, and have some porting done.
would the power bomb header and keihin 37mm carb really do much more for the money, the guy at area 51 off road is doing the work and he insists on the carb but for $550 is it worth it?

 

[ogener]

for that much money i would go with the edel

 

[paulie1959]

the best mods. for the warrior are the 10.5-1 compression, a intake kit, slip on pipe, and jetting, I tried different cams and they narrow and raise the power band to much, I like the stock cam the best, it pulls strong from idle to 6500 were you use the power the most

 

[jasonp]

paul what cams have you tired?
I had a web .390" and that was a awesome grind for woods riding.. I thought it had great torque and low end but still give you a lot more performance then stock.
Megacycle makes a torque cam that would be even better for your kind of riding.

 

[98warrior]

your not going to gain any performance changing to aftermarket carbs and ther very pricey, the stock carb jetted works very good, if you what, to try ebay for a used mikuni 36 BSR there on the raptor 350, kaw 400 and susuki 400, they meter fuel a little better and have a easy throttle pull ahd ther not pricey I pick one up for $10 with a dynojet kit

Why would'nt an aftermarket carb add power??? A bigger carb will add power, especially on all the cloned 400's because they have a very small stock carb. I guarantee you when my edelbrock/pro design intakes gets here and I tune it I'll probably gain a solid 3.5 hp or maybe a little more.

 

[paulie1959]

On the warrior I tried the hot cams stage 1 with about 10.25-1 flat top piston, +4mm stroke +2mm bore, intake kit, pipe, jetted 38mm kehin carb. and raced on dirt with my nephews '86 250r we are pretty much even all the way to 6th gear, then I raced with everything the same but stage 2 cam it did feel stronger on top but the 250r beat me bad by 3-4 bikes, then I tried 11.25-1 piston with stage 2 cam not much better, put back the stage 1 much better cam, and I put on a mikuni 36 bsr form a z400 little bit better in the lower middle RPM. I do have a new web cam 84 grind with springs in a box never tried I think it will be the same as the stage 2 cam. I have a 04 Raptor 350, with modified stock gutted pipe with a 1" stinger, intake kit with modified lid, stock cam, stock piston, 1mm thinner head gasket, 170 main jet 1clip lower needle stock carb and its only 1 bike behind the warrior on the road rolling start, now my buddy was on the warrior he's 25lb heavier and the warrior is 30lb more then the raptor. The Raptor 350 pulls strong from idle and has a wider power band then the warrior

 

[jasonp]

A couple of things here are that there are much better performance cams then the hotcam grinds. These really don't make a whole lot of power when compared to the Megacycle or web grinds because the hotcams have to use the stock springs so they can't get to agressive with lift, ramps, and duration.
Where did you get a 4mm stroker crank and what kind of piston did you use?
The 38mm PE kehin carb is a big carb for a 350cc engine, this would work better for a 400cc or so. IMO any carb is a better carb then the stock warrior carb. Personally I feel it's one of the worst modern designs out there.
Where did you get a 11:2.1 compression piston as I've never heard of that?
The stage 2 hot cam was designed more for hotcams stroker kit and really wasn't designed for the stock stroke as you can tell by the lobe seperation. But even so the Megacycle race cam would be better choise.

 

[jasonp]

[quote:0zj9psmj]your not going to gain any performance changing to aftermarket carbs and ther very pricey, the stock carb jetted works very good, if you what, to try ebay for a used mikuni 36 BSR there on the raptor 350, kaw 400 and susuki 400, they meter fuel a little better and have a easy throttle pull ahd ther not pricey I pick one up for $10 with a dynojet kit

Why would'nt an aftermarket carb add power??? A bigger carb will add power, especially on all the cloned 400's because they have a very small stock carb. I guarantee you when my edelbrock/pro design intakes gets here and I tune it I'll probably gain a solid 3.5 hp or maybe a little more.[/quote:0zj9psmj]

You'll gain more power with any carb over the stock BTM. It's not so much that another carb would be bigger or not it's the simple fact that the design of the BTM is crap.

 

[missouritrailrider]

I would like to hear from one of the elite or people who already have major engine mods, I am starting to race hare scrambles in january my bike needs the engine work done soon so i can work out any problems beforehand so what mods should i add for the best money because honestly 500+ dollars for 3 hp is not worth it to me i only want to have a fair chance against slightly modded 400's

 

[98warrior]

Well missouritrailrider dave and jason are 2 of the most knowledgeable members on the site and wont steer you wrong With $500 your not gona get a huge gain to be honest, not even close to the power of a slightly modded z. What mods do you have now? If its completely stock I would get an aftermarket exhaust/opened up intake. Depending on the exhaust and intake that right there is about 300 bucks if you go the cheap route with the exhaust, which would be an hmf slip on. Good pipe, cheap and adds decent power. Not sure what I would spend the other $200 bucks on. If you buy all used parts you might be able to get a pipe/intake/cam/piston. But that would take luck and time.

 

[missouritrailrider]

no, i was refering the $500 to the carburetor, i plan on spending more on mods i have a power core 4 slip on, and a k&n already but was wondering about the carb being a reasonable upgrade or if perfect jetting would just be the key

 

[98warrior]

The carb will give you a gain and will help even more with the other mods your doing but no way the carb is $500... I bought a used edelbrock in like new condition for $150 shipped! You dont always have to buy new, look around and get a good used carb.

 

[missouritrailrider]

i was refering to the mechanic at area 51 off road telling me edel was junk and to go with a kehein 37mm flat slide carb

 

[paulie1959]

[quote author=jasonp board=general thread=1191627954 post=1191896088]A couple of things here are that there are much better performance cams then the hotcam grinds. These really don't make a whole lot of power when compared to the Megacycle or web grinds because the hotcams have to use the stock springs so they can't get to agressive with lift, ramps, and duration.
Where did you get a 4mm stroker crank and what kind of piston did you use?
The 38mm PE kehin carb is a big carb for a 350cc engine, this would work better for a 400cc or so. IMO any carb is a better carb then the stock warrior carb. Personally I feel it's one of the worst modern designs out there.
Where did you get a 11:2.1 compression piston as I've never heard of that?
The stage 2 hot cam was designed more for hotcams stroker kit and really wasn't designed for the stock stroke as you can tell by the lobe seperation. But even so the Megacycle race cam would be better choise.[/quote
Jason,
1st as cams go I like the power band on my raptor 350 cam alot, it pulls strong from idle to about 6500rpm I don't think I can get any better with a after market cam because they narrow and raise the powerband
2nd I installed a 7mm crank from hot cranks and I made a 3.5mm spacer for under the cylinder for the extra stroke so I can use a stock style flat namura piston, when I checked the piston to deck clearance it was 3mm should of been about 1mm, so I checked the stroke it was only 68.5mm, I called hot cranks told them I had a +4mm instead of a +7mm they thought I was crazy it could not be 4mm, and they checked there stock and they had a hole pallet made by mistake with +4mm stroke so I installed the 68.5mm crank with a 2mm spacer for the extra +4mm crank
3rd 84mm bore x 68.5 stroke = 380cc with stock style flat piston with out base gasket and a 36cc dome head and head gasket = about 10.5-1, with a wisco piston add one more point to 11.5-1

 

[jasonp]

I agree that you should pick a cam where you ride the most and what suits you. Here the thing in my opinion is that sure the web .390" had I felt a little less very bottom end torque then say the stock cam (this is at maybe 1500-2000 rpm) anything after that it out performed it and pulls super strong in the mid range all the way to 8500 rpm. Which IMO the stock cam anything after 5500 rpm, really falls short. So I feel like you still have a really wide power band..
Why didn't want to buy a the CP piston in the kit? I seen one go on ebay for like $50 bucks or so. You can also have CP or JE custom make you any piston you want.
Did you know that when you added your spacer that you advanced cam timing? That would make all sorts of low end torque but also narrow the power band... I would think this would hurt performance.
I would send that crank back to hotcranks and get a 7mm crank or a refund.

 

[paulie1959]

I agree that you should pick a cam where you ride the most and what suits you. Here the thing in my opinion is that sure the web .390" had I felt a little less very bottom end torque then say the stock cam (this is at maybe 1500-2000 rpm) anything after that it out performed it and pulls super strong in the mid range all the way to 8500 rpm. Which IMO the stock cam anything after 5500 rpm, really falls short. So I feel like you still have a really wide power band..
Why didn't want to buy a the CP piston in the kit? I seen one go on ebay for like $50 bucks or so. You can also have CP or JE custom make you any piston you want.
Did you know that when you added your spacer that you advanced cam timing? That would make all sorts of low end torque but also narrow the power band... I would think this would hurt performance.
I would send that crank back to hotcranks and get a 7mm crank or a refund.

I might try the web .390 cam,
I tried to buy a custom piston but you have to buy 4 at a time @ $300 per piston,
the stock piston or wisco piston work fine,
the shim for the +4mm crank is only 2mm, not much thicker than a head gasket
for cam timing, I cut another key with a broach in the middle of the tooth so I can adjust 1/2 tooth at a time witch is about 5 deg. + or -

 

[jasonp]

http://www.shakerproducts.com/products.html they do custom pistons and I believe that they do one offs.