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Thread: 4-Banger...
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06-01-2006 #1
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4-Banger...
I just got into this new Dirt Track (IMCA Sport Compact) class that calls for 4 bangers only. I bought an 85 Olds Calais on our local auction for $150, and it runs.....well like a 4 cyclinder
!! It the 2.5 Liter, anyone know how to get more power?? Oh ya, it has to stay stock:bsjerk: .
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06-01-2006 #2
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Start with the basics, intake, exhaust, Spark/Timing. Pull the cam, take it to a local machine shop and have the base circle cut down. This means the valvetrain needs adjustment to compensate, but can make a big difference. Port and polish the heads (errr. . . head).
Nick R.
69 Camaro - 383, 700R4, 12 bolt 3.55, Hotchkis, Bilstein, Global West, Morris Classic
08 HHR SS - Still Stock for now
Do you still believe in all the things that you stood by before? Are you out there on the front lines, or at home keeping score?
Do you care to be the layer of the bricks that seal your fate? Would you rather be the architect of what we might create?
06-01-2006 #3
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Man - if that is the engine I think it is... throw it out and go find a VW SOHC from a 76-83 Rabbit. Solid overhead cam from the factory and a non-interferance engine. The one in my old FSP GTI saw 8000RPM more than a couple of times
1971 Camaro, 383 stroker ~500HP,M21 Trans with lightened flywheel. All Sorts of Auto-x Goodness in the Suspension. 12" Brakes ->SOLD
But ask me about my 2004 STi Auto-x car...
Just call me Brett
06-02-2006 #4
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Is that 2.5L or less??
06-02-2006 #5
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What are the rules? Any 4 banger that remains stock?
EJ25's can make good power, plus it has a much lower center of gravity from the horizontally opposed design. Plus you can get em for cheap because they have been out for quite a bit, and used in aircraft.
06-02-2006 #6
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The car must be 12 years old, front wheel drive, 4 pass. car...and the engine rules are-
ENGINE: 4 cylinder only. Maximum 2.5 liter. Single cam only. All components must be OEM unaltered for year, make and model of car used. No turbo charged, super charged or rotary engines."
06-02-2006 #7
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ej's are out, since they are dual cam.
...no mods really takes the fun out of it.
06-02-2006 #8
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It an't cheating if you don't get cought...
06-02-2006 #9
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toyota 22r they can make KILLER power and have alot of parts available, im not sure if they are duel over head cam or not though
edit: just read it has to be front wheel drive the 22r is for rear drive aplications
06-02-2006 #10
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try to find an nx2000 drive train they use an sr20 nissan engine, those can kick alot of ass and they are front drive
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