Any mods for a Bonneville 88 SSE? - 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 12-17-2003, 12:05 AM   #1
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Default Any mods for a Bonneville 88 SSE?

I was wondering what type of modifications you can do to an 88 SSE to increase HP. Also wondering what companies/websites offer such products. Thanx.
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Old 12-17-2003, 12:15 AM   #2
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Talk to Jim W. He had an 89 SE with a Magnaflow muffler (sounds amazing). There are several options if you want an intake. A lot of members are currently looking into making one. I will give directions on one I made a few weeks ago.

And pop a 180 thermostat in as well. There are several performance mods for these engines. You'll find a lot of ideas here! Welcome to BC
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Old 12-17-2003, 12:24 AM   #3
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There'* alot of information in Techinfo on this.
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Old 12-17-2003, 02:16 AM   #4
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A lot of non series II mods are custom, you build your own. More often then not, modified stock parts are better then custom ones.
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Old 12-18-2003, 01:32 AM   #5
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why a 180 theromo stat? wants worse gas mileage? that mod is for supercharged cars, so that when they put a smaller pully on and the KR goes up, that helps it go down a little. heat = knock, 180 tstat brings the heat down a little, your car makes its most power and best air fuel ratio when its hot and in closed loop
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Old 12-18-2003, 02:11 AM   #6
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I could hug your right now
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Old 12-18-2003, 03:37 AM   #7
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Quote:
Originally Posted by mikey
why a 180 theromo stat? wants worse gas mileage? that mod is for supercharged cars, so that when they put a smaller pully on and the KR goes up, that helps it go down a little. heat = knock, 180 tstat brings the heat down a little, your car makes its most power and best air fuel ratio when its hot and in closed loop
There'* more to it than that. The L27 benefits from it in the manner of a longer life on the upper bypass pipe bakelite fitting. The L36 benefits from less heat stress to the EGR area of the upper intake.

All cars benefit from a colder intake charge, with no detractant to mileage.
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Old 12-19-2003, 07:49 PM   #8
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Quote:
Originally Posted by DrJay
I could hug your right now
Is that directed at me? because im right? lol, not sure!

all a 180 t stat will do will make your car take longer to get into closed loop, more time in open loop more gas (runs rich in open loop).

yep, cold air is more dense, more air = more power. but that 180 t stat will drop underhood temps by, maybe 10* tops, not very much, that in combination with the tiny amount of time that the air spends in your engine bay before going into the TB and then combusting ( maybe 2 seconds ) that air going into the combustion chamber is now, what? 1/6 of a degree cooler? .2hp? .3hp? thats being generous
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Old 12-19-2003, 07:52 PM   #9
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more harm is done when the engine is cold then when its warm, metal expands when it gets cold, more friction when its cold than warm
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Old 12-20-2003, 05:49 PM   #10
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I'm with Don. No 180 stat will make a mileage difference (unless there'* a contribuitng factor....something else wrong), and may increase the life expectancy of the drivetrain and it'* components.
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