Ideas for horse power improvement in 1993 se - 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 06-19-2007, 10:47 AM   #1
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Default Ideas for horse power improvement in 1993 se

Hey I am just looking to see if any has some Ideas for moderate horse power improvement in a 1993 SE Bonneville with an L27 motor, please don't say buy ssei
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Old 06-19-2007, 10:48 AM   #2
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Please put your year and trim level in your signature.

Your first read should be Techinfo. Link at the top of the page. If you have any questions about what you read, just post here.
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Old 06-19-2007, 10:56 AM   #3
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ok sig updated
btw I have looked in tech info I just did not see a lot of options for my car(1993 Bonneville SE)
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Old 06-19-2007, 11:02 AM   #4
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Give us your realistic budget.
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Old 06-19-2007, 11:08 AM   #5
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Hey, we got ourselves ANOTHER Floridian. Looks like we are growing by leaps and bounds in this state

There are plenty of things to do to increse your current power levels. But first the basics need to be addressed. How well has the maintanance been kept up on your car? I ask this because though I am fan of adding power, I am a bigger fan of reclaiming LOST horsepower. That said, make sure all consumables are replaced (filters, fluids, plugs, wires), no codes exist in your computer (you have a '93...follow techinfo on how to get the codes out of your car), and your exhaust system is up to par (mainly the cat converter since the muffler flows pretty darn well from the factory). And clean your throttle body as those DO get quite nasty.
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Old 06-19-2007, 11:08 AM   #6
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realistic budget 2k time frame until September currently.
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Old 06-19-2007, 11:15 AM   #7
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You should only need to spend 100-200 for maintanence issues following my advice above, more if you need to work on the exhaust.

Fender well intakes (FWI) are the first mod most people make, along with a 180* thermostat (highly recomended in our area).

I had another thought...is there any way tyou can check your RPO codes for us, especially for transaxle codes. Going to a numerically higher ratio (provided you have the lower ratio right now) will really do wonders for an L27 motor.
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Old 06-19-2007, 11:33 AM   #8
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I can check tomorrow I am stuck at work today for the info I will do a full tune up soon clean the throttle body, high flow fuel filter etc. btw what do you think of quad element bosch plugs
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Old 06-19-2007, 11:43 AM   #9
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Don't.

Bosch plugs (at least the platinum series plugs...coppers are ok) do not mingle well with the GM waste-spark ignition systems. NGK and AC Delco are the main choices on this forum. I run Autolites and have not had any issues with them either.
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Old 06-19-2007, 11:51 AM   #10
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roger wilco will do, AC delco'*
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