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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 06-06-2004, 01:03 AM   #11
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Well, theoretically your top speed should be 156 mph at 6000 mph in 3rd gear, assuming you have the stock diameter tires. I don't think it will go faster in 4th gear because at 156mph the engine revs will drop to 4200 rpm and their won't be enough power with your set-up.
You would be wise to lower the front end an inch with some nice new coil over struts for stability over 140 mph.....and make sure your tires are rated for that speed.

I've gone 160 mph @ 5000 rpm in my old Firebird with the original 2.41 super highway gearset. That was after some mods and a drop kit and before I rebuilt the rearend and swapped in some steeper gears....no overdrive in an old 350 Turbohydramatic trani. Now it will only do 140 but it gets there much quicker.
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Old 06-06-2004, 01:34 AM   #12
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Well I've gone 130+/- in my GP STE. It was at 5900rpm in 3rd gear (3.33:1 final drive, 1:1 3rd gear ratio, 225/60/16 tires if anyone wants to figure out how fast I was really going). I decided it was time to let off because my redline is 5500 and I didn't feel like letting it shift into OD just to completely ruin the 4th gear clutch. I know of someone who supposedly went 155mph in a car just like mine...he said it was well into 4th gear. The car felt very stable...but my dome lights mysteriously came on...I was confused.

Been in the SSEi to 115mph +/-, and I've ridden in the GTP at 125 NUMEROUS times...went 120 in it today...only took like 14 seconds to get there.

I would say around 160mph would be the limit in a stock geared SSEi. If you lengthen 3rd gear or shorten 4th I would imagine, assuming you have the mods to make enough power, that someone could do 170...but not with stock power levels.

Shawn
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Old 06-06-2004, 11:36 AM   #13
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What are our cars governed at, and how much is a chip to override that governor?
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Old 06-06-2004, 11:38 AM   #14
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117 so far
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Old 06-06-2004, 12:42 PM   #15
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Quote:
Originally Posted by My new car
What are our cars governed at, and how much is a chip to override that governor?
Your 93 should be governed to 128mph (because of the stock rating on the tires, which was H, or 130 mph). You need to buy an aftermarket perfomance chip to remove the governer. I'm running the Jet Stage 2.
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Old 06-06-2004, 12:45 PM   #16
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Alright thanks. How much did that Jet Stage 2 set you back, and where could you find this part?
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Old 06-06-2004, 01:05 PM   #17
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www.jetchip.com

JET Performance Chips offer the most horsepower available for your GM car or truck. Only JET performance chips provide exclusive full range DST programming of the air/fuel ratio, ignition advance, transmission and various other parameters. Each program is track and dyno tested to ensure the most possible horsepower from each application without effecting drivability or fuel economy.

1993 Bonneville SSEI 3.8L *.C. Auto
Stage 1 #19303
$199.95


Qty:

Stage 2 #19303S
$209.95


Qty:
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Old 06-06-2004, 02:33 PM   #18
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Everything you guys have mentioned is great, but remember to get quality tires as well. Something designed to handle the high speed runs.
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Old 06-08-2004, 02:40 PM   #19
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Quote:
Originally Posted by Bigfunkytown
Everything you guys have mentioned is great, but remember to get quality tires as well. Something designed to handle the high speed runs.

Good Point...I have Dunlop Sport 9000'* 255/40/Zr-17 They should do nice!
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Old 06-08-2004, 04:59 PM   #20
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Thats crazy fast by the way willwren. Mine doesn't feel very stable even at 100, I can't imagine another fifty miles an hour. Scary.
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