Gm Turbo Upgrade Dyno Results
Senior Member
Joined: 01-28-2008
Posts: 357
From: INDIANA
I must of been thinking of the Z06. Anyway, the turbo upgrade must take it up to 6400-6500 anyway. Pretty hard to tell with the dinky tach. One thing I like about the upgrade, you feel better power all the time driving, not just when revved up like some mods require.
Senior Member
Joined: 05-06-2008
Posts: 1,076
From: Over here
I believe WaGoN MOnger got it right... 6500 with the tune.
BTW... just a small point for those who may not know what you mean... this isn't actually a turbo upgrade, but rather a retuning of the ECM. The factory turbo is untouched in this upgrade.
Senior Member
Joined: 07-23-2008
Posts: 1,148
From: Peoria, AZ
Because those that are pushing it beyond that will end up blowing their motor or spinning a bearing. When HP and TQ fall off before 6500rpms, why keep going more? I would recommend anyone with a HPT and or Hahn tune not to go past 6500 rpms.
Senior Member
Joined: 05-06-2008
Posts: 1,076
From: Over here
Numbers are falling off explicitly because of the limits of the K04 turbo... NOT because the motor is at its limit. Those of us going to bigger turbos that can breath up higher will be pleased at the 7400 or so mark, where the stock valvetrain, etc., are still in a safe zone.
Senior Member
Joined: 11-07-2007
Posts: 1,613
From: Southside of Houston Texas
Senior Member
Joined: 11-27-2007
Posts: 1,115
From: Austin, Texas
"Because those that are pushing it beyond that will end up blowing their motor or spinning a bearing. When HP and TQ fall off before 6500rpms, why keep going more? I would recommend anyone with a HPT and or Hahn tune not to go past 6500 rpms."
Everything I have read about these motors indicates that 7000 rpm and even higher is well within design limits, I typically take it to 7000 several times a day for the past 11,000 miles or so. I think for many the great power and the ability to keep the GM warranty makes the GM kit an excellent way to go, but I am going to continue to make mods to see how far I can take this motor, and have no problem taking responsibility for engine and drivetrain work when required (just like the early days of hot rodding).
Everything I have read about these motors indicates that 7000 rpm and even higher is well within design limits, I typically take it to 7000 several times a day for the past 11,000 miles or so. I think for many the great power and the ability to keep the GM warranty makes the GM kit an excellent way to go, but I am going to continue to make mods to see how far I can take this motor, and have no problem taking responsibility for engine and drivetrain work when required (just like the early days of hot rodding).
