I'M LOST! Best Mods for improving low-end torque?
12-03-2004, 06:53 AM
#22
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Originally Posted by BlueSix
There won't even be a noticeable difference between the two before you mod them, let alone after. Just make sure that the car you buy has 3.23 gears, the way to tell this is by looking at the RPO sticker inside the drivers door. Code GU2 is 2.73's, an GU5 is 3.23's. You want GU5.
12-03-2004, 07:45 AM
#23
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you should look at some of the baby cams. like the hot cam or an ls6 cam. ive heard those dont need any tuning
12-03-2004, 06:41 PM
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My following response was posted in another thread that should have been in this thread:
From the first day I drove my car off the lot, I felt that it was a dog in around town driving. I had 2.73 gears and figured that was the reason. So I swapped in 3.42s and that helped get rid of most of the dogginess. I still felt that the earlier LT-1s had more snap to the throttle so I decided to try and mod the motor to get that LT-1 lowend feel.
I installed a low lift CompCams 206/212dur 112lsa cam. Expecting it to be very lowend biased, I retarded the cam 2 degrees when I installed it. Even retarded, the lowend power increase is noticeable right off idle. I still improved my 1/4 trap speed by 1 mph, so I didn't lose anything up top. I shift at 6300 rpm.
If the cam was installed straight-up (with the 2 degrees advance ground in) i think this cam would show even stronger off-idle power at the expense of no gain in the top end. One of these days I'll set it straight-up and post the results. Anyway, with the cam & gears, I think I am pretty close to that LT-1 off-idle pull that I was trying to get.
From the first day I drove my car off the lot, I felt that it was a dog in around town driving. I had 2.73 gears and figured that was the reason. So I swapped in 3.42s and that helped get rid of most of the dogginess. I still felt that the earlier LT-1s had more snap to the throttle so I decided to try and mod the motor to get that LT-1 lowend feel.
I installed a low lift CompCams 206/212dur 112lsa cam. Expecting it to be very lowend biased, I retarded the cam 2 degrees when I installed it. Even retarded, the lowend power increase is noticeable right off idle. I still improved my 1/4 trap speed by 1 mph, so I didn't lose anything up top. I shift at 6300 rpm.
If the cam was installed straight-up (with the 2 degrees advance ground in) i think this cam would show even stronger off-idle power at the expense of no gain in the top end. One of these days I'll set it straight-up and post the results. Anyway, with the cam & gears, I think I am pretty close to that LT-1 off-idle pull that I was trying to get.
