Z28 Denys First Gear!
This is a discussion on Z28 Denys First Gear! within the Camaro / SS forums, part of the Vehicle Specific category; I recently installed a throttle body spacer which is "supposed" to give something like 8 hp. Immediatly after i installed ...
04-24-2007, 06:31 PM #1
Z28 Denys First Gear!
I recently installed a throttle body spacer which is "supposed" to give something like 8 hp. Immediatly after i installed it, i took it on a test drive. I floored it at 20 mph (which is usually my best spot) and the car would not down shift into 1st gear, it just stayed in 2nd, which at 20 mph is horrible. The car is an A4. Please if you have any suggestions on how to fix it, let me know. Thank you
04-24-2007, 06:36 PM #2
isnt there some 2nd gear start button or something? I'd make sure it was functioning properly361hp 351tq 98 Z/28 A4 SLP Lid/Smooth Bellow/LM2 K&N Filter Pacesetter Headers TSP Y Pipe Z06 Style Wheels B&M shifter Yank 3200 Prothane Motor/Trans Mounts Torquer V2/7.425" p-rods/Comp Springs
$, the replacement for displacement.
04-24-2007, 08:40 PM #3
- Join Date
- Mar 2006
- LS1 land
If the trans was good before you put the tb spacer on then take it back off and see if that fixes the problem. Either way just take it off - a TB spacer is a worthless piece of junk.
04-24-2007, 10:54 PM #4
04-24-2007, 10:56 PM #5
04-24-2007, 11:01 PM #6
04-25-2007, 02:56 AM #7
I can tell you a 1 inch open spacer is worth 3 tenths and over 3 mph on my 454 chevelle. We also got similar results installing the same spacer on my fathers 69 GTO. Different styles of spacers can have different effects, and this also depends on the type of intake being used, cam profile, etc....
As far as the downshift problem, I agree that if it wasn't a problem before then remove the spacer and see if things are okay. The computer controls the downshift speeds, and the only way to change it is in the programming. My 02 with the auto is programmed to downshift into 1st gear from 32 mph and below. I can't imagine the spacer effecting that, because as I said, this is a function of vehicle speed and throttle position sending input to the computer, unless the spacer somehow fudged the throttle position sensor? Larry.
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