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Modifying the L98

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Old Sep 11, 2006 | 09:23 PM
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Default Modifying the L98

Hello, I drive an '89 vette and I've been wondering: what are some of the best starting modifications that I can make to the car? I already have an intake, but should I look into headers or gears? Maybe performance exhaust? Basically...what gives the most performance for the least amount of money.

Thanks a lot for reading,
Matt
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Old Sep 11, 2006 | 09:31 PM
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On an L98, an exhaust from the headers back.

Try a search for more ideas then you can handle.
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Old Sep 11, 2006 | 09:48 PM
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A tune up!

Plus you get into the groove of keeping a maintainence schedule for your car.

Two birds, one stone.

Last edited by 1985 Corvette; Sep 11, 2006 at 10:41 PM.
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Old Sep 11, 2006 | 10:06 PM
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Alright, thanks guys
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Old Sep 11, 2006 | 10:08 PM
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read my website
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Old Sep 11, 2006 | 10:27 PM
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Vader 86 has an awsome web site and if i had the money i would go for a cat-back with headers
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Old Sep 12, 2006 | 05:49 AM
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it is all about moving air through the engine. Better intake to get more air in and better exhaust (headers) to get more air out.
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Old Sep 12, 2006 | 09:27 AM
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I agree, the L98 stock exhaust system is pretty restricted. I would go with headers, hiflow cat, and cat back mufflers, to start with.
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Old Sep 12, 2006 | 09:30 AM
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Well, the only thing is, it already has new exhaust. But, I don't think it's very performance oriented, and it doesn't sound too aggressive. I just don't want to burn money on exhaust when I already have a nice new one

BTW, what's your website, Vader?
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Old Sep 12, 2006 | 09:49 AM
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Click on Vaders name, you will see a link to his website.
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Old Sep 12, 2006 | 09:50 AM
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http://temp.corvetteforum.net/c4/vader86/
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Old Sep 12, 2006 | 11:09 AM
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Read the C4 Tech FAQ, Read Vader's website.

Nuff said.
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Old Sep 12, 2006 | 11:39 AM
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You've got all the info you'll need already posted....

My experience;

Catback
Magnaflow Cat
Remove the precats (still legal in some states)
New injectors (22lb)
Fuel filters and spark plugs
A new tune from Alvin @ PCMsforless.com

This is basically what I've done to my stock 86 (130K) and it runs 14 flat at 99.

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Old Sep 12, 2006 | 12:10 PM
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The only modifications that i've made are a Magnaflow catback and a high flow catalytic converter. I definitely felt the difference after they were installed.
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Old Sep 12, 2006 | 12:58 PM
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There's a used cam in the parts section, that would give a good power gain for little cost, if you did your own work.
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Old Sep 19, 2006 | 10:01 AM
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Alright, awesome guys.

Sorry it took so long for the response, I've just been too worried about that weird noise coming from my motor. I'm going to take a look at vader's site.
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Old Sep 19, 2006 | 10:25 AM
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the best thing I did to my 87 coupe was to cool down the pressure cooker by installing a 180 t stat and wiring both fans to a 200/185 sensor.
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