why cant i get to 20 psi????

[CacheHX]

ok i am running 10 psi (t3) on my built z6. i am now trying to take on 20 psi.

here is the problem-- i knew that i needed to put colder plugs in so i did, i put in some bkr7e's, i thnk thats what they where. but it made it worse (got all bogey and would like cut out at about 5 psi) so i put the stock plugs back in and its running great at 10 psi. but now its doing the same thing when i get to about 13 psi, it just all of a sudden like cuts out and gets really bogey.

what is the deal, do i need to try some different plugs, or wires, or do i need a MSD ignition or what. and yes my plugs are all gapped at .30


any help would be greatly appreciated

 

[Shiznit]

did you bother to tune your car for 13 psi?

and the gaps should be .030 not that you could gap them .30 without breaking them anyway. lol

 

[chinkskater]

yeah if u change something even if its little, another tune would be good

 

[jason_guy_yeah]

What kind of setup up do you have? I hope it's not a afc hack.

 

[ryan89crx]

what are you using for tuning? what size injectors do you have?

 

[93turbo16]

Gap them tighter than .030.. more like .028-.025

 

[Phantom Civic]

Did you change the map sensor?

 

[CacheHX]

i have crome pro and i was tuning while i was trying to get to 20 psi.

i have a motorola 2.5 map and dsm 450's

 

[jason_guy_yeah]

What's your AFR at 13 psi?Or better yet, post up your ignition and fuel mappings.

 

[ryan89crx]

what are your AFRs when its starts sputtering?

 

[slowhatch]

knowing if you're lean or not can easily destroy your motor. invest in a wideband, you'll be happy with it.

 

[DrRandall]

knowing if you're lean or not can easily destroy your motor. invest in a wideband, you'll be happy with it.

Very true, if it gets anywhere near 14.5:1 or higher, I cut mine off

 

[Chris.]

Very true, if it gets anywhere near 14.5:1 or higher, I cut mine off

wait...what boosted car do you own? you last thread involed buying a civic and putting a turbo kit on it. your car can go higher than 14.5... s**t it idles there. so your tellin me that between shifts when there is nuthing being dumped in and your AF goes above 15 cause all its doing is pumping air...you shut your car off?

 

[ryan89crx]

problem could be boost cut as well...

 

[majorahole]

no, he's running crome i don't think it is capable of that

 

[ryan89crx]

no, he's running crome i don't think it is capable of that

yes it is, its called "boost limit" under the Options tab