ZR-1 Mystery Key/Top Speed???
09-15-2001, 11:30 PM
#1
6th Gear
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ZR-1 Mystery Key/Top Speed???
I heard many different rumors about the key in the ZR-1's that is located below the radio. I was wondering if someone could tell me what this does and how it works. Also, does anyone know what the actual top speed is of a stock ZR-1.
09-16-2001, 01:07 PM
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Burning Brakes
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Re: ZR-1 Mystery Key/Top Speed??? (YllwVetteC5)
The key does the following...
(Keep in mind the LT-5 has 16 intake ports)
1) Turns off the highend injectors (LT-5's have 16 Fuel injectors, 8 for the primaries, and 8 for secondaries)
2) Turns off the vacuum secondaries
Net result is about 225hp (+/-) vs the full blown 375 (or 405 depending on year) - It reacts as though the car is an L-98 - About the same performance with the key off.
The difference in the drivers seat is huge... The engine doesn't want to tach much more then 4,500 - It just runs out of breathing.
(Keep in mind the LT-5 has 16 intake ports)
1) Turns off the highend injectors (LT-5's have 16 Fuel injectors, 8 for the primaries, and 8 for secondaries)
2) Turns off the vacuum secondaries
Net result is about 225hp (+/-) vs the full blown 375 (or 405 depending on year) - It reacts as though the car is an L-98 - About the same performance with the key off.
The difference in the drivers seat is huge... The engine doesn't want to tach much more then 4,500 - It just runs out of breathing.
09-16-2001, 01:45 PM
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Racer
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Re: ZR-1 Mystery Key/Top Speed??? (YllwVetteC5)
Just to add a little. The key also cuts on the second fuel pump.
Top speed varies from high in the 170's to mid 180's mph.
Top speed varies from high in the 170's to mid 180's mph.
09-20-2001, 06:06 PM
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Burning Brakes
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Re: ZR-1 Mystery Key/Top Speed??? (YllwVetteC5)
Hmm, I´m trying to get my hands on a tuned ZR-1 here in Germany.
Was a Test Car for GEIGER Performance Engineering in Munich.
They even developed a Blower for the ZR-1 engine!!! More than 600 RWHP!!!
The car I´m interested in was a test-vehicle for GEIGER and the Chief mechanic.
It is reported that it is capable of doing 195+ mph!!! :reddevil :reddevil :reddevil
Only problem is that I will have to sell my C3 Big Block for the ZR-1........
Its still a mental confusion..........
Was a Test Car for GEIGER Performance Engineering in Munich.
They even developed a Blower for the ZR-1 engine!!! More than 600 RWHP!!!
The car I´m interested in was a test-vehicle for GEIGER and the Chief mechanic.
It is reported that it is capable of doing 195+ mph!!! :reddevil :reddevil :reddevil
Only problem is that I will have to sell my C3 Big Block for the ZR-1........
Its still a mental confusion..........