i have a problem. Under heavy acceleration when vtec hits my car starts to sputter I tapped the plugs to 26 and it helped but it still does it. The wideband reads high 11s to low 12s. Help please

 

More info on the engine spec would help (along with more info in general ). Taking a guess, it sounds like your ignition is breaking up.

 

Built b18 boosted New distributor wires and fairly new plugs Just had it tuned and it ran perfect on the dyno as soon as I hit the highway it started

 

Do you only have the problem when VTEC kicks in?

 

tighten your gap.

 

Yea I the gap is 26. How much tighter do u want me to go

 

Damn, talk about lazy.... If you really can't be bothered then don't expect your problem to be fixed to quick.

How about power output/boost level ?

 

What's lazy. And 300 at 9psi 408at 15 psi

 

You're lazy, after all, it's not exactly hard to sit behind a keyboard and explain the situation clearly. If you can't be bothered with people then people won't bother with you. It's really that simple....

Ok then, so what are you pushing now ? 300 or 408 ? is this WHP or flywheel HP ?

 

Both. I have 2 boost settings and wheel. Btw I'm nit being lazy I'm searching everything I can find for an answer so I'm hurrying up. 255 walboro pump and 850cc injectors.

 

gap it tighter and see if it goes away?

 

Internal coil module (ICM) or ignitor may be dying. Get replacements or aftermarket ignition. Also check VTEC solenoid itself for any leaks or damage, including the simple task of making sure you're not low on oil, which can effective it. Change to new plugs while you do it. Problem solved.

 

It's all brand new. Literally 1000 miles. Or do u think it went bad already

 

we need detailed setup info.. pisntons/rods turbo size, manifold, ignition setup, what you are tuned with, fuel setup, etc.
not just built motor with a turbo on it... that doesnt't tell us ****.

it could anything from bad tune, bad ignitor, bad plugs, fuel pump, bad injector, etc, etc.. the possibilities are endless if you don't supply us with detailed info

 

I just tried brand new plugs and gapped them to 24. It ran good till it got hot then started acting up. It's a b18c1 block b16 head eagle rods cp 9:1 pistons darton sleeves map 6262 precision turbo map ram horn manifold hondata s200 walboro 255 pump and 850cc injectors. Is that enough cause I can't think of much more

 

What kind of distributor? I have run into several different occasions that a new aftermarket unit failed immediately. The icm was crap, causing an issue when it got hot/large load and rpm.

 

Not entirely sure. NGk plugs and wires is all I kno

 

i would start to look into that if possible. Ofcourse check what others have suggested i.e soleniod itself,fuel pressure,fuel quality ect. i have just personally ran into that with aftermarket distributors since you said yours was new. Who bought the distributor, see if you could get it swaped out for another since its new.

 

The whole car was done 4 hours from my house so it's a little hard to get everything straightened out but I'll give that a shot

 

Well my buddy thinks I need a fuel pressure regulator Anyone have a link for a good one at a decent price.

 

Is this only at WOT or only at part throttle transition to the HIGH cam?

 

Wot

 

i dont think you dont need one. after all the stock one is good for 600hp i believe and you were also tuned on it

 

its only good for 600whp for a period of time. stock ignitions wear out quick at higher power levels. With 1000 miles on it there isnt a good chance the distributor is bad unless its one of those ebay junks then it could very well have a bad ICM.

That being said what heat range plugs are you running? also gap them down to 22-20 for stock ignition at 400whp. If you had aftermarket ignition at 400whp you could run gaps from 26 to 32

 

It's a Honda distributor. And I tried bkr7e and 6e both