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noob turbo ques

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dcshoeco1041

10+ Year Contributor
163
1
Jul 19, 2008
east greenwich, Rhode Island
hey guys i was just wondering what i could expect power wise from a turbo 420a running around 5 lbs of boost with a t3/t4 turbo setup? Thats my current project and i just wanted to get some opinions. Thx

Corey:talon: :talon: :talon:
 
Thats a pretty wide range just to put a hp number on it. But my guess would be around the 200hp mark. At 5psi you can run with a stock 4g63
Edit: 200whp
 
my buddy has a junk ebay turbo kit on his 420a and at about 7psi it dynoed 192whp
 
"Junk ebay kit"
Thats why he dynoed at 192whp. With the right parts, especially the fuel setup, you can make close to 200whp on 5psi. Either way you can run with stock 4g63.
Adivce: dont skimp out on the fuel setup, alot of time that will make or break you
 
I think that a lot of guys on here run a dual rail port fueler set up with secondary injectors, but I could be wrong. Check out the N/T pages to see and get any advice or helpful hints/tips.
 
People that are going for high hp 420a engines use portfueler or megasquirt. Megasquirt usually the better but more difficult option. For lower like 330hp or so, varies a little bit. But by that point you need some kind of way to control timing, or stand alone ecu. But if your not aiming for more then 300hp then you dont need secondary injectors, 450's off a 4g63 would be fine, you just need a resistor pack.
Edit: Portfueler is using secondary injectors
 
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