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#1 |
Guest
Posts: n/a
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![]() Where is the knock sensor located, is there even one at all? Also can anyone tell me why you make more horsepower with 87 octane? I tried to run my car with 87 on an 80* day (with cast iron heads and 14* of timing) and it didn't knock or ping (plugs were fine too), but it felt way slower. I put 93 back in and it ran much better.
------------------ 88GT stock shortblock, GT-40 iron heads, Edlebrock Performer intake, 24# inj, Pro-M 75mm Bullet MAM, 3.73, hurst short throw, F-303, electric fan, alum rad, FMS HD clutch, R134a ac conversion, 70mm TB , and some other stuff I probably forgot, 13.02@106 with a 1.87 60ft |
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#2 |
Sober voice of Reason
Join Date: Nov 1998
Location: Kelowna, B.C., Canada
Posts: 1,514
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![]() There is no knock sensor, sometimes you can't hear detonation but it is still there, I was going to suggest that you might be a touch rich but if the plugs were fine then, hmm. I guess some scientific research is in order...
------------------ GT-40 heads (ported, polished, + milled), B303 cam, 1.7rr's, JE pistons, Offy intake, Carter AFB 625cfm carb, Flowtech 1 5/8" shortys, Flowtech X-pipe, MAC Flowpath exhaust, MAC pulleys, 373's, subframes, Eibachs+Tokicos, B+M ripper, FMS Clutch, Zoom Quadrant+cable, 17" CSA Ultra rims, 235/45ZR17 Yokohama AVS S4's, MSD 6A ignition+coil, FMS 9mm wires, Carbed, Naturally Aspirated, and Nasty! |
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#3 |
Guest
Posts: n/a
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![]() Cool I didn't think there was a knock sensor. It is wierd that my car ran that poor on 87 octane. I heard that running 87 octane is supposed to make more power.
I know one possibility is that my timing light could be inaccurate also. I set the timing on a friends car and another guy checked the timing and said it was 8* off. So I should look into that first. Thanks, Jason |
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#4 |
Registered Member
Join Date: Mar 2001
Location: lafayette IN USA
Posts: 48
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![]() Remember to pull the spout connector when setting base timing
![]() ------------------ 91GT Flowmaster 2 chambers,off road H pipe,mac equalength headers,F303 cam,high lift valve springs ,svo 1.6 roller rockers,14*timing,410's,BBK cold air kit,hurst shifter.Ran 13.5@101 with stock headers and air box. |
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#5 |
Guest
Posts: n/a
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![]() Yeah I know to do that, I just think that my timing light is on its way south. Maybe it was dropped too many times.
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