94Z28T-TOPS

Does all the 94' Z28's speeometer's only read up to 115 mph ? I have talked to a few people and they say theirs all read 150. Just wondering if some care where made with either or. If anyone can help me out that would be great. Thanks.

BTC

I know that my '94 reads 150. I can't remember the specifics regarding the different speedo, but it may have had something to do with what tires the car was ordered with from the factory. If the tires weren't Z rated, there may have been a rev limiter to keep you from going too fast. Someone will probably know what's up.

Kmaroman

iTrader: (1)

sounds like you have a v6 gauge cluster

Red93z28

no thats not true, my car is a factory 93 z28 and it came with the 115 mph gauge cluster and in my glove compartment sticker it says lt1 z28, BTC is right, if it did not come with z rated tires then it will have a 115 mph speedo

Lt1junkie

iTrader: (9)

my 94 reads 150 but it doesn't work due to the th-400

DarkKnightRider

yup. got a '94 T/A and it didnt come optioned with the "high performance package" which means no 150 speedo and lower speed rated tires. among a few other small things i believe.

Mojave

iTrader: (4)

Exactly.


If your car got speed rated tires (Z speed rated), then you got the 150 speedo. If your car got non-speed rated, it got a speed limiter and a 115 speedo. The speedos are interchangeable, and you can get the limiter programmed out.

94m6Z28

miens got the silly 115 and its limited there. found out the good way....going going goin...and powers done.. so a 150mph cluster should drop right into place?

chris8835

Same here! I have always found this to be weird as well. I always thought because my car came with the 3:23 gears from the factory that had something to do with it.

djjab57

iTrader: (17)

my 94 has the 150 2:73's but it still shut off at 110 before tune also it's an a4 and i have a 1st

Mojave

iTrader: (4)

Yes, it will drop right in.

TDavanzo

iTrader: (3)

The gauges will physicall fit into place but unless you re-calibrate your pcm for the 150 mph movement of the needle you're going to seem like you have an 8 second car. The needle will move at the same speed and you will still retain your speed limiter.

Mr_Bond

iTrader: (11)

No need to re-calibrate your pcm for the 150 mph movement of the needle. The calibration is in circuit broad of the cluster itself. Just swap-n-go, you should be fine.