PCM Tuning question - Page 2

XanderWiFi · 11-06-2010, 07:20 PM

melting spark plugs like ion?

[ion] C2 · 11-06-2010, 07:29 PM

Only reason that plug disintegrated was detonation and it was too hot of a plug for me. It was due to my changes to the tune and running 13.0 afr at 20 psi lol.

BlackJack · 11-06-2010, 08:50 PM

Quote:

Originally Posted by [ion] C2

running 13.0 afr at 20 psi lol.

yeah, that'll do it. I'd say you were probably intending to shoot for more around 11.2-11.5 eh?

[ion] C2 · 11-06-2010, 09:41 PM

Yeah, my injectors max out at that boost level lol. At 16 psi I can maintain 11.5 afr at 90% IDC. Much better. I think I may still have a vacuum leak though, will test soon.

BlackJack · 11-06-2010, 10:01 PM

Quote:

Originally Posted by [ion] C2

At 16 psi I can maintain 11.5 afr at 90% IDC. Much better.

What size injectors are you on currently?

and yeah, I've been there with plug issues before. That's why I'm chucking in some NGK BP8FE. Should do pretty well.

[ion] C2 · 11-07-2010, 12:10 AM

Yeah I have 2-step colder than stock now, NGK TR7. 60lb/hr injectors.

BlackJack · 11-07-2010, 12:13 AM

Right on. I'm about to drop the bones for 90#, I just hope the idle isn't going to be shit as a result. That plus the full fuel system that's going in when I return, and it should be able to keep up with the 'ol T70 finally.

My main issue right now is a PCM OS that only supports 1bar map/tables, and trying to get rolling with a serious tune that will support over 20psi.

[ion] C2 · 11-07-2010, 12:22 AM

wtf 90lb/hr on 6-cylinder? How much power exactly are you planning?

My idle is misfire-y right now, but I think it's just a vacuum leak or something else small.