i have a H23a1 with a turbonetics t3/t4 turbo i just up the boost and jump some numbers up on the SAFC when i boost and hit around 5k rpms i have a loud bang and some black smoke came out ran the car up the road seems to run fine then tried it again and same thing....car runs fine now but why was it doing it i went from 3lbs(all the auto tranny could handle before i swapped a 5 speed in) and i boosted up to 7 lbs and then got the bang. tried retarting the timing a few degrees still didnt help any ideas on the issue


and does anyone have the ideal settings for the SAFC for 7lbs. other mods include msd sci, blaster 2 coil, and plug wires. vortec fmu and regapped my plugs to .030 any ideas

 

well the fact that you have an safc and an fmu isnt a good thing. 3 psi isnt gonna cause much dammage, but 7 and you are messing with the fueling with an safc, thats not good. get some real management.

 

should i just ditch the SAFC the guy that tuned it said i needed it.. will it work fine with the fmu and with the vacuum line , they are connect to the stock FPR the FMU t-ed to the intake manifold the the tuner set that up right

 

before you yank it out, zero the safc. and see what happens. also where were your plug gaps? if i remember mine are at like 0.018 - 0.020

 

plug gaps are at .030

 

you regapped to 0.030 where were they?

 

Ditch the AFC and the FMU, or just ditch your engine. Your choice.

If you decide the former... hondata.com and pgmfi.org both offer excellent solutions. Or you can visit the tuner directory at the top of this forum, and find someone close to you that talks sense at you, that you feel you can trust, and go with whatever they feel most familiar with. Or you can choose the latter.. at which point don't waste our time posting.

Sorry for the tough love, but it sounds like you need it.