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bridgeport

Old 06-04-07, 07:55 PM
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bridgeport

Well my engines done and im concidering my options and I was wondering if anyone could tell me if a bridgeported engine would still be good for autoX and drift? I have a 94 FD.
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Old 06-04-07, 08:11 PM
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If you want to be competitive in autocross, then don't port the engine at all. I know nothing of drift other than that it is a byproduct of overheated tires and tight corners
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Old 06-04-07, 09:21 PM
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why do you say I shouldnt port it if I want to stay competetive? Is it because of loss of torque or overall there just no good to use in turns?
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Old 06-05-07, 06:55 AM
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Because the class you would be put in after porting means you'll need to strip the car, install a roll cage, complete suspension, wide wheels and tires, and do all kinds of other stuff to 'fully prep' it to the class limits.

You will have fun, but the classing will not let you be competitive.

When people 'build an autocross car', they get a copy of the rules and completely build the car to the rules of that class. Most new people make one or two changes that move them to an advanced class, but have no interest in 90% of the other stuff that the class allows for mods. This means you are running against 'fully prepped' cars.

The most bang for the buck in autocross is tires. Kumho V710s are awesome, but some like Hoosiers - put the widest tires you can fit on the stock (or stock sized) rims. In stock class, you can replace the struts/shocks and the front sway bar. Most go with Koni single adjustable and a nice racing beat sway.

Last edited by dbgeek; 06-05-07 at 07:02 AM. Reason: i had more coffee and the brain woke up
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Old 06-05-07, 08:40 AM
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I have to agree with dbgeek. I also think bridge ported engines are overrated. You have to turn stratospheric RPMs to take advantage of the ports. This means you have to build the rest of the engine to survive those RPMs. Plus you have to feed the engine tons of fuel. That means you scrap the stock computer and put in some type of upgraded engine management. 10 or 20 thousand dollars later, you do have an engine with tons more power... but you also have less reliablility and a very finickey engine that requires constant attention.
We have a stock port engine with the stock engine controls and stock redline. The only mods to the engine are upgraded oil system. It cost about $3500 to have it built by a pro. It's totally reliable and should last us 10 years like it sits. Plus it still has enough power to keep us mid pack with cars that cost 10 times what we have in ours.
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Old 06-05-07, 11:56 AM
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Originally Posted by Benvprov View Post
Well my engines done and im concidering my options and I was wondering if anyone could tell me if a bridgeported engine would still be good for autoX and drift? I have a 94 FD.
If one likes to autocross and wants a bridgeport then Just Do It. SM2 is a class where ported rotaries fit. This year I've been running a 1/2 bridge 12A and I love it. lt will morph into a full bridge in the future. A BP just increases the rotary music from a nice tune to a full symphony. So yes you can autocross a BP. Will you win trophies at the nationals? I don't believe that was the question you asked. Mashing the pedal around the cones is all I want to do.
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