lq4 stock long block with tu1 cam and springs
80mm turbo 80lb inj on e85
th400 3.27 gear

what should i gap at and wanting to push 18-22lbs

.025"??

 

yeah strait to 24 youll be mint

 

tr6 or br7ef is close to that gap right out of the box lol

 

Is this sarcasm as in blow it up real quick???

I have the br7ef already and dont want to guess gap.

 

i always gap right to 24, lots of people want to **** around and do like 38,32,28 etc

if you are gunna run 20lbs save yourself the hassle, gap right to 22-24 and be done

all of my 20-22lb setups run a TR6 at 23~ gap problem free

 

.025 gap here. No issues at 20+psi on e85. I run b8efs plugs.

 

Hey Will why not br7ef ?

 

Just get br7s take them out of the box and throw them in no need to touch the gap have ran 22psi with no problems

 

Just wanted to try a colder plug out as my br7efs were breaking up at higher boost. The gap was .028 and after switching and tightening the gap I've had 0 issues.

 

GOtcha Will.... But do you think if you kept the 7s and tightened up the gap you could possibly have 0 issues?

 

Probably wouldn't have a problem with 7's gapped to .023-.024. Changing my plugs with stainless works headers is a PITA so I just went a step colder with a .025. Every cars a little different but you'll find a gap and plug that works. Most seem to have great luck with the 7's in that gap range though so it's a good place to start.

BTW, just saw you are running 80lb injectors. You may need to look at bigger injectors if you're pushing 20+ psi on e85. FWIW I'm running 2000cc injectors and my DC on 22psi is around 71-72% IIRC. You could probably get away with 1300cc or 1600cc injectors and still have some overhead.

 

Y not just bump up the line psi instead of running huge injectors?
Twin pumps at say 70psi with 80s