V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

91 Octaine???

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Old Aug 4, 2001 | 02:46 AM
  #1  
FAST RS's Avatar
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From: Moorpark
Car: 1991 CAMARO 1968 FIREBIRD
Engine: CAMARO 3.1L FIREBIRD 455
Transmission: CAMARO 700R4 FIREBIRD TH-400
91 Octaine???

Ive been goin to gas stations in cali lately and noticeing that insted of 92 octaine they now have 91 Whats up with this and will it mess with my chip since it requires 92?
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Old Aug 4, 2001 | 11:54 AM
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From: Union City, CA
Lots of chips say they need higher octanes. Our v6's have a lower compression so dont really need it. You'll find lots of guys here with modified v6's running 89 and even 87. Truth is, when I tried out 91 octane once on my car, it felt slower. I personally just stick with 89.

------------------
85 2.8L Sport Coupe 5-speed.
Mods: Hpertech chip and powerstat, MSD 6A-L, Crane fireball coil, Accel Cap and Rotor, Dynomax hi-flow cat and catback system with a dynomax magnum race bullet muffler on the i-pipe, K&N filterchargers, Gutted Air Boxes, 8mm Wires, Eibach Sportlines and Tokiko springs/shocks setup, Global west sub frames, Suspension techniqs front and rear sway bars, and good ole 88 IROC wheels with Kumo Ecstas on em!
"It's not the ricers, it's those damn V8's!"

Wins: 2000 V6 Accord, 69 302 Mustang, 2000 Auto VR6 Jetta, 89 Toyota MR2, 90 Civic Si, 76 350 Camaro.
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Old Aug 4, 2001 | 01:46 PM
  #3  
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From: Moorpark
Car: 1991 CAMARO 1968 FIREBIRD
Engine: CAMARO 3.1L FIREBIRD 455
Transmission: CAMARO 700R4 FIREBIRD TH-400
My car has awlays run better on 92 tho
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Old Aug 4, 2001 | 01:52 PM
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From: Sarasota FL
Car: 99 WS6 / 00 SS / 11 CTS-V / 13 300
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Axle/Gears: 3.23 / 3.42 Auburn / 3.23 / 2.62
My car loves 93. 89 feels no different than 87 in my car, but for some reason with 93 it feels slightly smoother.

------------------
Jason E

'89 Camaro RS
-Medium Grey Metallic
-2.8, A4, T-tops, 92k miles
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'97 Z28
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Old Aug 4, 2001 | 02:41 PM
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From: Bayville NJ and Newark at NJIT.
I agree with Jason, 92 makes it seem smoother, but I just save myself the cash and run 87... Once my car gets it act together and starts working right that might change though.

[EDIT] To answer your question... it shouldn't matter... Crazy Cali's... :rolleye:

------------------
1985 Camaro SC - 2.8L, auto.

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[This message has been edited by Xenodrgn (edited August 04, 2001).]
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Old Aug 4, 2001 | 03:46 PM
  #6  
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From: Moorpark
Car: 1991 CAMARO 1968 FIREBIRD
Engine: CAMARO 3.1L FIREBIRD 455
Transmission: CAMARO 700R4 FIREBIRD TH-400
But whats up with the 91 Octaine tho???? im seeing it everywere now
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Old Aug 5, 2001 | 01:28 AM
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they sell 103 at a station next to my house. just FYI. I don't see how it could help my car, quite yet



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Jeff
92 Camaro V6, mods: K&N, modified air box, JET chip 2,high performance muffler.
www.camarors.4t.com
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Old Aug 5, 2001 | 04:45 AM
  #8  
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From: Moorpark
Car: 1991 CAMARO 1968 FIREBIRD
Engine: CAMARO 3.1L FIREBIRD 455
Transmission: CAMARO 700R4 FIREBIRD TH-400
Cant forget the 89 which i now see as 88.5 octaine
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Old Aug 6, 2001 | 09:40 PM
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From: Moorpark
Car: 1991 CAMARO 1968 FIREBIRD
Engine: CAMARO 3.1L FIREBIRD 455
Transmission: CAMARO 700R4 FIREBIRD TH-400
Well i found out why all the octaine ratings went down in ALL of california. They took out the MTBE in the gas cuz cali says it causes cancer and is bad so i guess by the end ofthis year all of california will have 87 88.5 and 91 octaine. all i gotta say is DAMN COMMIES
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