panman142

So I took my Sig car up to the other side of the speedometer tonight after work. Just had the t56 rebuilt and once i shifted to 5th and hit about 120-130 ish the car kinda popped or missed and gave a little bit. And I backed off. Has happened to me prior to trans rebuild. Always thought it was the tranny.. don't really know what forum to post to but if someone could help that'd be cool. And of coursebi swung by the local salt flats and didn't break any laws

TwoFast4Lv

iTrader: (8)

If it did not come with the right tires from the factory you could be hitting the speed limiter

panman142

How can I take off said limiter.. haha and its a 95 z28 with the m6 leather, bose, sounds like top of the line to me. How would I be able to tell?

TwoFast4Lv

iTrader: (8)

You would have to dig but it is one of the RPO codes.

Yes it can easily be tuned out.

Mine goes 137 every pass

ahritchie

iTrader: (1)

Not true....t56 cars are speed unlimited stock ....should be able to hit 155-160 STOCK (mine did ). The only LT1 f-body with a speed limiter is the least desirable 2.73 auto models...limited to 115mph. Any f-body with a 3.23+ gear is only limited by aero

OP, I would look at the wires first.

bufmatmuslepants

iTrader: (3)

could have been jesus, ala, zues, or whatever got you pray to telling you to slow the **** down on public roads.

TwoFast4Lv

iTrader: (8)

I must have some strange one running through the shop then....

nomoneyz

iTrader: (15)

Pretty sure it has to do with if it had Z rated tires from the factory. My "least desirable" auto 2.73 car did just fine above 115mph.

OP, check your ignition system. Something may not be up to par.

speed_demon24

iTrader: (6)

Stock speed limiter was around 155-160 IIRC, and if you do gears without removing the speed limiter it will lower it substantially.

ahritchie

iTrader: (1)

Not true either, my car didn't come with z rated tires and it ran 160 mph stock

Anybody with a hypertech programmer or any tuning expertise can easily remove it on the 2.73 autos....were you the original owner?

You must be thinking mustangs or something.

ahritchie

iTrader: (1)

Negative...like I said....t-56 cars are DEFINITELY NOT SPEED LIMITED.....it's dependent on the axle ratio if limited or not...the car just hits the areo wall at 5600 @160mph and can't pull anymore; trust me. The LS1 cars will do 165

93 LT1 Vette

My first Z28 came with the lesser tire option P235's. In turn it had the 120 speedo and 108 mph limiter.

speed_demon24

iTrader: (6)

I don't understand how people still debate this since these cars have been out for 20 years. T56 cars definitely do have speed limiters, and the speedo in the dash is nowhere near accurate once you get up in the higher speeds. LT1 cars were limited at 155, and ls1 cars at 162 IIRC.