lordie

I'm installing an SMC 500 on next tuesday. I just want to ask your opinion to start setting fuel correction to the followings (I have 390cc and calculated the corrections according to the ENG MAN. FAQ):

Idle: -30
1k: -33% / 1k5: -33%
2k: -32% / 2k5: -32%
3k: -31% / 3k5: -31%
4k: -30% / 4k5: -30%
5k: -29% / 5k5: -28% VTEC point 5500rpm
6k: -27% / 6k5: -27%
7k: -26% / 7k5: -26%
8k: -26% / 8k5: -26%

Setup:

B16A2, T3/T4B, 6-6.5psi (internal wastegate with actuator rod), 390cc DSM injectors, custom FMIC, custom 2" stainless steel IC piping, 2.5" downpipe, custom manifold, plastic talon BOV, BKR7E spark plugs, SMC500 etc.

I also want to retard timing from 16 to 12 degrees. Just to be sure... How much HP / torque i loose with retarding?

Thank You,

Peter

PS: Later i will change to external wastegate (I already have one from an Audi), but i don't want to install it until it is not decided how to route it back to my exhaust system and until i have no 2.5" piping on the whole exhaust system (I don't want to get mad from extremely loud sound).

tranceminister

Oh lordie what have you done... :P ok lame joke, but anyway those settings look pretty decent to start off with on 390cc injectors. I'd definately keep an eye on the AFR. But as far as retarding your timing at the distributor, you will loose some of the low end power, but I'm sure it won't be too big of a deal once the turbo starts to spool up.

lordie

Thank You!

redcrxsi

trance says it all pretty much, a lot of people i hear running the hack just fine with no retard, but it has a strong chance of denotation obviously.. but retarding means lose of power..but with boost, loss of low end power is sacrificed for high end POWER!!! With honda that all that really matters!

lordie

I also have read it should run fine without retarding, but how long...

i rather sacrifice a few low end HP in order to decrease the chance of detonation and let it live longer. And i don't retard it much (-4 degrees only).
I want to achieve at least 205wHP and i think it still will be ok even with retarding (B16A2, T3/T4B, 6.5psi).

Unfortunately chipping is very very expensive in Hungary and no Dynojet available at all (at least no for cars, but yes for motorcycles), so i don't thrust chippers here. I rather street tune myself.

redcrxsi

that is easily possible with a b16a2, but they are very high compression so i don't know how long it would last.... but 205 will be easily achieved with the right tune very very easy since b16a have good horsepower to start. With a b16a I wouldn't personally recommend boosting, but if you 10psi should be the extreme max, due to the compression.
Tuning is everything, get that bitch on the dyno!!!

lordie

I don't want to boost more than 7psi. Nor my injectors would love it (85 duty cycle at 7.8psi).