Will the updated mpfi spider from the 5.7L vortec 350 feed enough fuel to 383stroker motor ?plz help
I need to know if that injection system will fully work for my 383 project And
not restrict any performance
It would feed enough fuel for the engine to run ok and have fun with, but not enough fuel for the engines potential. An aftermarket fuel injection system with a stand alone computer for tuning would be the way to go.
So 2100$ more
I could install all that at a later date and the motor will live?
My biggest concern is not having enough fuel when I'm at the top end and burning up the motor
I built a 97' 5.7 Vortec for my 95' Chevy K1500. We figure there is about 400 hp. I ran out of money and ended up putting a TBI Vortec intake on with the biggest Holey TBI on it to be able to hook everything up original. I had to have a chip programmed for the OBD1 computer to make it run properly. She screams. I just don't thrash on it but do open it up once in a while. It just would be unreal with that $2100 fuel injection system. So you probably would need your computer reprogrammed, I assume it is a OBDII. You would be able to run with the spider injection until moneys saved for a better system.
Yeah the 1999-2000 computers can be reprogrammed to work with the 5.7
There's the 4.3l v 6
Rowefast, thanks for the info . myself have same type of problem. My 97 Silverado 5.7 needs new spider so.... wanted to get a 36lb. one till money for upgrades become avail. but what do i need to run that injector on stock 5.7? and if you dont mind me asking where did you get chip? and also didnt understand part of your answer. you stated. ' -ended up putting a TBI Vortec intake on with the biggest Holey TBI on it to be able to hook everything up original. ... Do you mean you used holley for lower intake and used the stock vortek intake for upper? trying to picture in my mind... lol any clarifacation would be excellent ! thanks! , sorry for gramatic and spelling errors ...lost glasses and cant see chit without them! thats my story anyways. thanks again. p.s. what upgrades did you make on 97 vortec as i have same motor, looking for 400-450 range, i would be happy! , for now anyways...
