i know most tpi cars are limited to 4500 or 5000 rpm redlines....but my dash rpm gauge has the red with black slashes at 5500 and solid red at 6000...whats the deal? as far as i can tell this is how it came from the factory.

 

What year? I know 85's have a 6000rpm redline tach in them. No point in revving it that high though.

 

85 trans am
and it pulls to about 5300 strong

 

89 GTA 5spd, in 2nd it pulls hard to 4800rpm, but keeps pulling pretty well to at least 6000rpm. Anyone else notice this with 5spd cars? Just wondering when to shift for racing?

 

My stock '87 L98 runs out of breath about 4700 rpm, and is on it's back by 5000! By the tach it yellowlines at 5000 rpm and redines at 5500.

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87 Formula 350 13.94@96.67
98 Z28 1LE 13.15@107.59
1LE Owners Association

 

correct me if I'm wrong (and i probably am) but didn't those tachs only come on the L69 carbed 305? if it's a TPI motor, it might not be original

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My 1986 Z28 and more!!
85 IROC w/ 1364 miles!

R.I.P Dale Earnhardt

 

my 85 IROC w/305 TPI (originally) shows redline at 5500 but goes to 7000.

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85 IROC 350 11:1keith blacks,.555lift erson roller cam,1.5 crane roller rockers,edelbrock intake,holley 4150 750dbl pumper, nitrous oxide,full length heddman headers,true dual exhaust, 11"stall converter, 700R4, 3.73 locker

[This message has been edited by bottledpower (edited March 30, 2001).]

 

Nah, I had an 85 TPI TA and so did a friend, and they both redlined at 6000 according to the tach. GM mix+match at its best.

 

my 85 trans am red lines at 6000

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1989 pontiac firebird
bright red exterior(just repainted)
grey interior
5 spd
305 TBI (stock)
WS.6 formula wheels
3.73 posi rear end
http://members.aol.com/j007golden/Mikey89.html
-------------------------
1985 trans am
factory bright yellow
4 wheel disks
16 inch wheels
305 TPI
power antenna and mirrors
t tops

 

just to let you guys know....most of the factory tachs are WRONG.

go put in a low rev limiter chip in your msd, if so equipped, and go see when your factory tach starts limiting....you will be surprised