Low end torque
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Teching In
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Low end torque Did an LS-3 swap on my 98 SS. 376/480 crate. Very unhappy with low end torque. Trying to go the best way possible. Installed a 12 bolt Moser with 3:91 gears. Then took it to one of the best tuners James Short, which did a great job with what he had to work with. The car is a six speed by the way. Anyone have any suggestions. Someone mentioned doing a head swap. Cannot afford turbos or superchargers. Thanks for any advice
mike
mike
It's not the stock LS3 that he has.....he has the 376/480 LS3 crate engine with the GMPP LSx Hot Cam that's supposed to be good for 495hp/473tq at the crank.
http://www.chevrolet.com/performance...ls376-480.html
KW
http://www.chevrolet.com/performance...ls376-480.html
KW
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Joined: Apr 2002
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From: Hickory, NC
Post your graph if you can. I'd really like to see what the power and torque curve actually look like. I've been flirting with the idea of doing an LS3 crate motor swap in my 98 SS as well. With 3.91's that sucker should pull like a freight train...
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Teching In
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Low-end torque loss. Feels really flat. I'll have to get James Short to send me another copy of my Dyno sheet. Doesn't start making good Torque till close to 4000rpm. Talking to Jared from Brian Tooley, he told me the heads on those motors do not make torque down low like the original Cathedral port LS1 did. His suggestion was a new set of trickflow cathedral report heads. That's another $3000, plus a 5 1/2 hour trip to have it returned both ways. Plus labor. I was just wondering if there was another way? Running around at low-speed in second or third, just feels really flat and slushy. Any suggestions would be appreciated very much. I don't need to go two hundred miles an hour. Just want the car to pull good. Thank you very much for getting back with me. And another thing, it's been to two different tuners. James was only able to get 373 to wheels/435 to crank. And I ordered it from GM as a crate 376/480 hot cam. There's no possible way there could be that much loss. Got me scratching my head. It is a six speed by the way.
Mike
Mike
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Teching In
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Graph Thanks for your reply
Mike
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Thread Starter
Teching In
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Thread Starter
Teching In
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Low end torque It's not the stock LS3 that he has.....he has the 376/480 LS3 crate engine with the GMPP LSx Hot Cam that's supposed to be good for 495hp/473tq at the crank.
http://www.chevrolet.com/performance...ls376-480.html
KW
http://www.chevrolet.com/performance...ls376-480.html
KW
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Teching In
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KW Baraka Micks51buick@yahoo.com
just put LS3 in the subject
thanks alot🙂
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Teching In
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