How to make my Bonneville SLE Faster! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 02-10-2008, 12:15 AM   #1
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Default How to make my Bonneville SLE Faster!

Hi. I have a 1998 Bonneville SLE 3.8 liter. It is purely stock except for the K+N air filter I just bought. What SIMPLE plug and play things can I replace or add to make it faster? I am fairly handy and am not afraid to do some mild work, but I would like to start with the easy stuff. ( I just went through replacing the ac programmer vacuum line connections and all vacuum hoses under the hood to partially solve the ol' air conditioning issues)

Thanks in advance.

Todd
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Old 02-10-2008, 12:18 AM   #2
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Start out with a FULL tune up, then take care of this, 95-03 Upper Intake Failure Information

After you take care of all that, check out www.Intense-racing.com
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Old 02-10-2008, 12:21 AM   #3
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I second that exactly.

If you need tune up information, there are loads of it in existence, just do a search.
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Old 02-10-2008, 12:26 AM   #4
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Default making my Bonneville faster

THanks for the tips. That post is a little scary about the faulty intake gaskets.

I just replaced the oil and oil filter, fuel filter, air filter, radiator, all vacuum hoses, and the door weatherstrips after I bought it a month ago.

I guess I will do the plugs, wires, pcv valve and thermostat (get a 180 deg.) to start. Is that good?

After that, what else can I do to modify it for some Horse power?

Todd
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Old 02-10-2008, 12:40 AM   #5
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first mods are generally a FWI (fenderwell intake) and a PCM from intense-racing.com

these are not necessarily huge HP adders, but they will help some, and are necessary for future mods.
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Old 02-10-2008, 01:07 AM   #6
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Default mods for speed

Not too bad for price either. The PCm was only $99 and the fender well intake was $169 for my car.

What about a chip and a new exhaust system first?
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Old 02-10-2008, 01:16 AM   #7
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no one really does chips here, although i couldn't tell you exactly why. I don't think any of the fastest cars around here even have them.
For the exhaust you may want to consider a high-flow cat, and mufflers if you want to change the sound.. but you most likely won't outflow the stock exhaust system, so this will be more of a sound mod rather than performance.
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Old 02-10-2008, 01:42 AM   #8
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If your serious about getting power out of your L36, ZZP has the best bolt ons.
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Old 02-10-2008, 01:45 PM   #9
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95naSTA: Where does ZZP have products for older Bonnevilles? Looks like they just have stuff for Grand Prix, Grand Am, G6 and Cobolt/Ion?
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Old 02-10-2008, 02:13 PM   #10
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Most 97+ GP L36 engine parts are direct bolt ons for 95+ Bonneville L36'*.
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