Thoughts on up'ing the boost?
Thread Starter
Drifting
Joined: Oct 2002
Posts: 1,898
Likes: 35
From: Fairview Hts. IL
Thoughts on up'ing the boost?
Guys,
Since I have an A4, my HP/TQ numbers aren't very good. However, I do not run the car hard very often and I am wondering how difficult and/or what kind of risk I will incur if I up the boost from 7psi to 8psi? I would expect to pick up about 20-25rwhp from the change. My other question is about tuning. . .would I need to have the car retuned? Right now, my AF ratio is running 11.7-12.0 for the entire run.
Since I have an A4, my HP/TQ numbers aren't very good. However, I do not run the car hard very often and I am wondering how difficult and/or what kind of risk I will incur if I up the boost from 7psi to 8psi? I would expect to pick up about 20-25rwhp from the change. My other question is about tuning. . .would I need to have the car retuned? Right now, my AF ratio is running 11.7-12.0 for the entire run.
Thread Starter
Drifting
Joined: Oct 2002
Posts: 1,898
Likes: 35
From: Fairview Hts. IL
Re: Thoughts on up'ing the boost? (hogurt)
You are absolutely correct. For now, I am considering an '03 LS6 cam. The specs are pretty similar to the Lingenfelter GT2-3 cam. . .
I figure it will give me 20-30rwhp. :cheers:
I figure it will give me 20-30rwhp. :cheers:
Team Owner
Joined: Mar 1999
Posts: 28,753
Likes: 9
From: San Jose/Bear Valley CA
CA Events Coordinator
Re: Thoughts on up'ing the boost? (hogurt)
Raise the boost and risk hurting the motor... Do a Forged bottom end... then go crazy with heads and cam and have a real beast on your hands.
vetterdstr :cheers:
vetterdstr :cheers:
Melting Slicks
Joined: Sep 2002
Posts: 3,064
Likes: 95
From: MI
Re: Thoughts on up'ing the boost? (vetterdstr)
:iagree:
This is great advice. There are guys that get away with running more boost/power on a stock block, but why risk it. Invariably those guys do end up hurting something. Tuning only buys you time. The stock components just wern't meant to handle the extra stress for sustained periods (even talked to a few GM engineers about the limits of the stock components). An extra 20 horse or so isn't worth it. Now if you want to be able to say to the wife, "well honey I have to fix it, its broken...and what good is a broken vette?" and put in forged stuff later then :D
[Modified by Earl H, 11:42 AM 7/18/2003]
This is great advice. There are guys that get away with running more boost/power on a stock block, but why risk it. Invariably those guys do end up hurting something. Tuning only buys you time. The stock components just wern't meant to handle the extra stress for sustained periods (even talked to a few GM engineers about the limits of the stock components). An extra 20 horse or so isn't worth it. Now if you want to be able to say to the wife, "well honey I have to fix it, its broken...and what good is a broken vette?" and put in forged stuff later then :D
[Modified by Earl H, 11:42 AM 7/18/2003]
