Originally Posted by BlueShadow
Just in case you didn't already know if you have stock injectors you should not put the car into boost at all. Stock B series injectors are already maxed out and running a high duty cycle so you cant get any more fuel out of them. You can drive your car with it just keep it in vacuum and do not boost. I'm assuming you took out the FMU and are just running your turbo setup with a stock fuel pump, injectors and UD. If you boost with just that setup YOU WILL will blow your motor.
Also FYI your timing is way to conservative. You can afford to pull out just a little bit of timing at low boost. You can pull out 0.10* per psi from 0-3 psi, then from there gradually increase the amount of degree per psi you pull back. This is called a step retard, and here is a good one that you can use. By using a step retard and pulling only a little timing at low boost you improve the low boost performance of the car by not retarding or pulling timing when you dont really need to.
3 psi - 0.40* per psi
5 psi - 0.50* per psi
7 psi - 0.60* per psi
9 psi - 0.70* per psi
11 psi - 0.80* per psi
Chech out the UD forums to figure out how to set up a step retard
http://uberdata.pgmfi.org/forum/
Hey,
First, I DID NOT take off my FMU yet, because without it, yes you are right I would blow the motor, I know this, that's why I left it on... I need the extra fuel pressure supplied by the FMU in boost, because again you're right, with stock fuel pressure and stock injectors, I would be running lean... I saw the whole tuning process, and the injector's duty cycle is extremely long in VTEC, like 160 ms...
He knows this is not good, and he told me that, but it WILL work for now, until either today or tomorrow, when i can put on 450cc injectors with a resistor box...
trust me, the dude knows what he's doing, he has same setup as me basically. Even the same starion FMIC.
Also, we drove it around after the tune and we made sure the A/F gauge was reading RICH the whole time in boost, and it does, it works fine...
I may be a newbie, but I definitely know how to not blow my motor!
Thanks for the info,
Mike