Not true, mine has a 155 speedo, and is limited to 115.

 

I guess I lucked out when I got my car. Got it used and it currently has z-rated tires. I hit 140 a few times, so I guess I never had the rev limiter or the previous owner did the work for me.

 

Okay, must have changed then... I know at least to 98 that's how it was. Then again, I haven't been F-body shopping since I bought my most recent one. They very well could have changed in 99.
Dave

 

Yeah, the only way to know if you got it, is to check the driveshaft, or actually hit the limiter.

 

What does the driveshaft have to do with the rev-limiter?? If you're thinking it's got something to do with steel driveshafts being in cars with the 115mph limiter, and aluminum ones being in cars with the ~162mph limiter, that can't be true 'cause my car has a steel driveshaft (AFAIK?! ) and yet I've had the needle beyond the 250km/h that my speedo reads!.

 

M6 LS1s all came with aluminum shafts. No matter what tires.
A4s with the performance axle option came with aluminum.
A4s with the standard gear came with steel.

Now, a point that needs to be made before M6ers start saying "well I have a steel shaft"...
GM went on a quiet mission to replace all the aluminum shafts that they could with steel when warrantee work afforded the chance. I don't know why, but they did it. So if your car does not match the layout above, then your shaft was replaced by a PO or the dealer.
Dave

 

Yes, but i've had my car since it was basically brand new. I bought it w/ 4,300 miles on it. It is an M6 and has a steel driveshaft, and i've never had any warantee work done on it. So how do you explain that one? I got it with so little miles on it, b/c it was in hiding for 2 years before they could find it and reposses it from the previous owner.

 

he is right, all m6's have aluminum drive shafts, Only the a4's with the performance rear have aluminum, hence the 200 dollar option charge to get 3.23's instead of 2.73's, to pay for the difference between the iron driveshaft and the aluminum. Are you sure you don't have an aluminum driveshaft. As for the speedo, if you don't know anyone with a programmer, or hpp3, or good freinds with some mechanics at the dealership, then the hpp3 is your cheapest route to get rid of it. Then the predotor=420 and lastly LS1edit=500+Laptop.

 

Yeah, i'm positive it's steel. I think i'll just wait till I change my cam and need tuning to get rid of the limiter.

 

The scumbag could have traded the shaft for a steel one plus $50 or $100 quick cash in the pocket. Any LT1 owner would have jumped on it.
Dave

 

Didn't think of that. Doubt this guy knew anything about the car or cars in general for that matter, cause it was bone stock when I got it. So I doubt he changed anything. And it came with chrome 5 spokes with the oe 245/50/16 RSA's on it Z-rated, but he must've seen those on another car in the dealer and said I want those rims, cause I checked the rpo codes, and it shows that it came with the 235 non Z-rated. Hence I was assuming that's why it has the 115 limiter and steel drive shaft. But i've been told it's actually a good thing, cause it'll hold up to more power and abuse, and my car is already lighter than everyone else's cause I have no power options. I have all the important stuff, the monsoon stereo, the chrome rims, the 6-speed, and the most important, the LS1!!!!!!! So it's actually pretty cool. With me (215-220) in it and all the junk that I keep in the trunk, including tool box, plus spare and all, it only weighed about 3400 lbs!!! I have friends that've weighed there T/A's and Camaro's at 36xx something without them in it!!!!

 

Well I was able to get up to 130 mph!!!! It did it coming in from out of town at about 4:30 am. There was completely no traffic at all. No problems.

 

Why is that when I got myself a set of P255/50/ZR16s that they would scrape on the wheel well when I turned forcing me to go back to my original non Z-rated tires? I also think we neglected the ? being asked on this thread is there any way to erase the limiter for less than $300. I personally dont know, but you guys kinda got off the subject.

 

Disconnecting speedo won't work as the trans shift points, etc. are based on the VSS...
I'd say you need a HPP+ or a reprogram of some sort[LT1 edit etc] or a mail order one[100+ bux]
I used a HPP for now 'Tuner cat' coming soon tho..
My speed limiter was more like 108 or so, too...

 

My 2002 Z28, has the Chrome Wheels and Eagle GSC 245/50/zr16.. And I did run the RPO codes over at z28.com and it came up with the fact that these tires and wheels came with my car, plus my car came with 4L60E and 2.73 gears.. So would I be able to get above 118 ??