boost question on 420a

[birdman]

ok please dont flame me for asking this. i have been searching but it seems that everone is running different boost levels with different mods. i recently spoke with wyatt( the one who sold me the turbo kit) also and he said if i were to get new injectors and a s-afc that he wouldnt be afraid to run 12-13psi on the stock bottom end. i also read that the 420a stock bottom end holds up pretty sufficiently up to 300 hp.Now i would run no where near 13psi on my stock bottom end because i cant afford a rebuild right now. my next mods i planned on getting 415cc injectors and a s-afc. i planned on running 10-11psi with my stock bottom end. do u think this would be a wise choice or should i save for the rebuild then run higher boost then the 8psi i am running now. i hit fuel cut off sometimes when its cold out now so i wanted to get injectors and the s-afc then run at least 9 psi. i just want to know what the max boost would be to run on stock internals for a daily driver. anyones advice is very heplful and appreciated. thank you

 

[solar eclipse]

i wouldn't go above 10 psi with the stock bottom end. the injectors and s-afc would be good. i have heard about the 420a holding 300hp stock but i think that is at the flywheel, so i wouldn't take a chance until the bottom end is built up. btw, if you could, please pm me on which boost controller you got and where you placed it in terms of the wastegate and turbo. since i have the same setup, i'd like to do the same. thanks.

 

[abstraction]

injectors will definitely help... but even with that i wouldn't push 12PSI.. 10-11 sounds reasonable on stage 2 w/intercooler. should be okay.

 

[EvuLFleA]

415cc injectors you will need a 1:1 fmu now too you know. If you use 415cc injectors with your 12:1 FMU you will have more fuel than Iraq.

 

[stickman]

Originally posted by EvuLFleA
415cc injectors you will need a 1:1 fmu now too you know. If you use 415cc injectors with your 12:1 FMU you will have more fuel than Iraq.

Yes,but he could lean out the fuel mixture with the s-afc.You still might run a little on the rich side,but that wouldn't be a bad thing if you run 11psi on stock internals.

 

[EvuLFleA]

Hell no you couldn't lean that much out.

At even 8 psi you would be at 130 psi with 415cc injectors

Get a S-FMU if you go 30lb injectors or a 1:1 bosch or aeromotive fpr if you want bigger.

 

[siueclipse]

i dont plan on breaking 10psi until i have the engine built.

 

[EvuLFleA]

OT: Nice sig siueclipse.

 

[siueclipse]

thanx, i actually have your sig as my desktop

 

[Malenko]

me too bt you'll be happy to know that no less then 4 people have askjed if its the car form the fast and the furious

Yes I exlpained that you have a street fighter front end and not a blitz one and how we hate that movie/car =)

 

[EvuLFleA]

Man that makes me almost want to go back to stock haha. I'll get a new pic one of these days when I get that FMIC put on, its just been sitting in my room for a few weeks now.