2000LS1Z28

And if so, do I need a hypertech power programmer 3 to do that?(currently have 3.23's)

Keep in mind this will be on a bolt-on car only.

Mike

[ January 05, 2002: Message edited by: 2000LS1Z28 ]</p>

Slow Z28

iTrader: (19)

trial and error man. when you get it to the track, play with it if you can. that's the best way. you may have to up the 3-4 shift quite a bit so you don't go into overdrive at the end of the track though. i'mnot positive.

Chris

2000LS1Z28

Interesting. But assuming I don't go to the track much, will the stock shift points be ok for around town and the highway or will this cause problems for my transmission no matter where I drive my car?

Just trying to learn a little about this stuff.

Mike

2000LS1Z28

TTT

2000LS1Z28

To The Top one more time.

gwj

You definitely need some way to tell the pcm the gearing is different. An HPP3 would be handy for that as well as shift points.

Kristi

Changing the shift points with HPP3 will not affect part-throttle (around town) driving. It only affects WOT shift points. When I Autotapped my car after installing the 3.73's, I saw that my 1-2 shift was only at 4500 rpm!!! I now have my 1-2 shift point at +5 mph, and my 2-3 at +2 mph. You'll have to either get HPP3 or custom tuning to calibrate the computer for the gears.

[ January 07, 2002: Message edited by: Kristi ]</p>

Warlock

iTrader: (4)

[quote]Originally posted by Kristi:
<strong>Changing the shift points with HPP3 will not affect part-throttle (around town) driving. It only affects WOT shift points. When I Autotapped my car after installing the 3.73's, I saw that my 1-2 shift was only at 4500 rpm!!! I now have my 1-2 shift point at +5 mph, and my 2-3 at +2 mph. You'll have to either get HPP3 or custom tuning to calibrate the computer for the gears.

[ January 07, 2002: Message edited by: Kristi ]</strong><hr></blockquote>

Kristi, are you running a stall and if so what size?

Kristi

I consider the SLP thing to be such a waste of money that I forgot to mention it <img src="gr_images/icons/wink.gif" border="0">

I'm running a Yank ST3500.

Black Sunshine/ 00SS

iTrader: (1)

If you are not running it at the track, then you dont need to change a thing, although the speedo will read an average of 10 mph faster (mine does). The hypertech would be nice though, you lower the shift points.
When I went to the 3:73 gears from 3:23, I kept hitting the rev limiter on every gear, under WOT, finally I figured out that keeping the car in 4th fixed that problem & everything was smooth sailing. I guess it makes the car "short shift" just enough to keep if from hitting the rev limiter. My car shifts into 4th gear the EXACT moment that I cross the line, it couldn't be more perfect. <img src="graemlins/gr_cheers.gif" border="0" alt="[cheers]" />

2000LS1Z28

[quote]Originally posted by Black Sunshine/ 00SS:
<strong>If you are not running it at the track, then you dont need to change a thing, although the speedo will read an average of 10 mph faster (mine does). The hypertech would be nice though, you lower the shift points.
When I went to the 3:73 gears from 3:23, I kept hitting the rev limiter on every gear, under WOT, finally I figured out that keeping the car in 4th fixed that problem & everything was smooth sailing. I guess it makes the car "short shift" just enough to keep if from hitting the rev limiter. My car shifts into 4th gear the EXACT moment that I cross the line, it couldn't be more perfect. <img src="graemlins/gr_cheers.gif" border="0" alt="[cheers]" /> </strong><hr></blockquote>

Thank You. That was the exact kind of information I was looking for.

Mike

Ragtop 99

iTrader: (7)

You can buy a plug in device to correct the speedo from SLP, but a used HPP3 is about $200 and is much more flexible for not much more money.

Black Sunshine/ 00SS

iTrader: (1)

Keep in mind that this info may not work out exactly in your car, because I run a Vig 3200, 26" tires, & cutting 60's an average of 1.52. I'm getting to the end quicker than most. Your car might shift into 4th sooner because off diferences in the mods mentioned above. Good luck.

Ragtop 99

iTrader: (7)

Also, keep in mind that not correcting your speedo results in your odometer reporting 15% higher mileage on the car.

2000LS1Z28

[quote]Originally posted by Ragtop 99:
<strong>Also, keep in mind that not correcting your speedo results in your odometer reporting 15% higher mileage on the car.</strong><hr></blockquote>

Yes I will correct the speedo when the change is made and play around with the shift points if needed(HPP3).

Thanks Again,

Mike