My old set up is in my sig, and the car was tuned for that. BNR stage 2s were parrallel so the PFC was set for that. 2ndary injectors were 1300 cc so the PFC was set for those.
My new setup is all the old stuff plus, large single turbo, 850 cc primaries, apexi front mount, crane ignition and a slightly freer flowing exhaust. My question is would it be harmful AT ALL to the engine if I were to start the car, let it warm up and drive it 3 miles across town w/o changing any of the settings on the PFC? I could drive as slow as I wanted and of course not boost at all. I am worried about what will happen with the 850s most of all. Thanks for any help.

 

sig

 

I would think it would be safe as long as you drive slow and don't boost a lot... maybe add some enrichment points just to be safe. However the setup you have is VERY different now and if I were you I would just tow it those 3 miles, shouldn't cost too much.

GL
Jason

 

I would never let a tow truck guy even come within ten feet of my car...I would rope tow it before I did that. But thanks for the idea

 

Set for 850cc primary injectors from the injector menu. Fire it up and do some tuning to get it to idle better. It will be a good experience for you and at idle I don't think you will mess anything up. Next drive to get it tuned, but just stay out of the gas ... ie part throttle and no secondaries. The part load settings from turbo to turbo are quite similar and you should be more than good.

 

I can understand your concern, but it is only 3 miles and the tow trucks that aren't flat beds won't scrape up your front end when gettin it ready to tow. I've had positive experience both times I had to have my car towed (both times for coolant hoses)

 

Push it, it would be great exercise...

 

I don't have a commander and actually just would like to get the car out of my friends garage and back to my place...its been there 5 months and is quite a burdon. You guys can throw the tow truck idea out the window...I don't care if every other member of the forum had a great experience with a tow truck guy. So if I were to leave the settings and run the car, I'm guessing the idle would be absolutely rediculous, it may flood and not run?

 

P-,
Just change the injector size and you'll be fine...just keep off boost. As far as tuning you will only have to add about .250 milliseconds of fuel in the boost maps to be rich and safe....
john.