Ported Head on LS4 - Any results?
12-12-2008, 09:20 AM
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Ported Head on LS4 - Any results? I know a few folks have ported heads on fwd LS4 vehicles. Has anyone posted dyno results? The Texas heads that I saw online claimed 50whp gains, but I am skeptical.
Anyone have results? Will everything else still work with these Texas heads (i.e. DOD, etc)? Any downside?
Anyone have results? Will everything else still work with these Texas heads (i.e. DOD, etc)? Any downside?
12-12-2008, 09:51 AM
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Biggest downside is transmission strain basically. Our transmissions are basically maxed out handling the ~270 WHP we make now. I'd worry about second gear just completely shredding if that got bumped up to 320 WHP.
50 horse gain at the wheels doesn't seem entirely outrageous. I'd be a little skeptical until I saw some hard proof, but I won't call it impossible.
50 horse gain at the wheels doesn't seem entirely outrageous. I'd be a little skeptical until I saw some hard proof, but I won't call it impossible.
12-12-2008, 10:48 AM
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Biggest downside is transmission strain basically. Our transmissions are basically maxed out handling the ~270 WHP we make now. I'd worry about second gear just completely shredding if that got bumped up to 320 WHP.
50 horse gain at the wheels doesn't seem entirely outrageous. I'd be a little skeptical until I saw some hard proof, but I won't call it impossible.
50 horse gain at the wheels doesn't seem entirely outrageous. I'd be a little skeptical until I saw some hard proof, but I won't call it impossible.
12-12-2008, 12:25 PM
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Mine decided to nuke itself after 20k miles, so my replacement gets babied. Beside I'd rather toss money into my CTS-V fund than blow it on the GXP.
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12-12-2008, 01:10 PM
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12-12-2008, 01:15 PM
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12-12-2008, 01:38 PM
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I sold the turbo kit, I had everything else (built tranny, stereo, suspension etc, etc,) still but I wanted to sell the car. I looked and looked and when I factor in the money I would lose trading my car in or selling it and then the extra on top of that to get a different car, it REALLY didn't make sense.
And as weird as it will sound, driving it without the turbo is really not that bad (As a whole, it sucks big time when I step on the gas of course..lol) So I decided to just keep it.
So we (Cartuning and I) will be building it up more for next spring. The trans will get rebuilt with a couple more things just to be safe and we'll do heads/cam and a custom "race" version of the turbo kit hoping for over 700whp but we'll see when the time comes I'm not much of a E-racer lol. Should be fun
I wanted to sell because of the crazy stupid racing laws here in Ontario, Canada but realized this is still just a really nice car and I don't have to drive like an *** monkey even if I have a lot of power.
And as weird as it will sound, driving it without the turbo is really not that bad (As a whole, it sucks big time when I step on the gas of course..lol) So I decided to just keep it.
So we (Cartuning and I) will be building it up more for next spring. The trans will get rebuilt with a couple more things just to be safe and we'll do heads/cam and a custom "race" version of the turbo kit hoping for over 700whp but we'll see when the time comes I'm not much of a E-racer lol. Should be fun
I wanted to sell because of the crazy stupid racing laws here in Ontario, Canada but realized this is still just a really nice car and I don't have to drive like an *** monkey even if I have a lot of power.
