Procharger on a 383 with stealth ram
03-17-2013, 10:03 PM
#1
Junior Member
Thread Starter
Join Date: Mar 2013
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Procharger on a 383 with stealth ram
Right now I have zz4 heads ported with dish pistons I was told around 10:9:1 last dyno I was around 425 whp putting 8-10 boost what problems should I take care of now? I also have 36 lb injectors. What I hector should I run as well? Any advice would be much appreciated 
03-21-2013, 12:45 AM
#2
Supreme Member
Re: Procharger on a 383 with stealth ram
If it runs good, keep it running good. Retard the timing on a chassis dyno and get some EGT numbers to verify it is right. Keep the air/fuel ratio around 11:1 since your compression is very high.
you DO have a wideband right? And an EGT gauge?
you DO have a wideband right? And an EGT gauge?
03-22-2013, 08:35 AM
#4
Re: Procharger on a 383 with stealth ram
Zz4 are 58 cc and flat tops in a 383 would be well over 11.5 to 1. 64 cc makes 11 to 1.
So you have 8-10 psi on this motor already at that high compression? I would expect more than 425 whp, thats more like an all motor number if those heads are extensively ported and cam is big. I assume you are wanting to add 8-10 psi. Thats a tall order on pump gas but doable if you run cold plug run it rich and use methanol injection and good intercooler. Thats going to be very close to the borderline of detonation
If it does work, you will need 60 lb injectors
So you have 8-10 psi on this motor already at that high compression? I would expect more than 425 whp, thats more like an all motor number if those heads are extensively ported and cam is big. I assume you are wanting to add 8-10 psi. Thats a tall order on pump gas but doable if you run cold plug run it rich and use methanol injection and good intercooler. Thats going to be very close to the borderline of detonation
If it does work, you will need 60 lb injectors
03-22-2013, 12:21 PM
#5
Member
iTrader: (1)
Join Date: Jan 2002
Location: Michigan!
Posts: 482
Likes: 0
Received 0 Likes
on
0 Posts
Engine: Vortec 4200 Inline 6 PT70 Turbo..
Transmission: 4L65E
Axle/Gears: 3.73
Re: Procharger on a 383 with stealth ram
Methanol injection would be on my list of things to do.
A more aggressive camshaft might make it more pump gas friendly.
60lb injectors for sure possibly double in-tank fuel pumps.
A more aggressive camshaft might make it more pump gas friendly.
60lb injectors for sure possibly double in-tank fuel pumps.
03-22-2013, 01:05 PM
#6
Supreme Member
iTrader: (2)
Join Date: Sep 2003
Location: Woodland, CA
Posts: 10,494
Likes: 0
Received 3 Likes
on
3 Posts
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
Re: Procharger on a 383 with stealth ram
Aeromotive A1000 to make sure fueling is right for sure. That is what I did.
Thread
Thread Starter
Forum
Replies
Last Post
LT1Formula
Engine/Drivetrain/Suspension Parts for Sale
7
10-08-2015 08:34 PM
