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2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-22-2003, 04:47 PM   #1
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Default Transmission shiftyness

I love the Bonny, but the one and only complaint I have about it is the way it shifts. For city cruising the car seems to get into the higher gears really quick and does not want to get out of them unless I press the accelerator over half way down. By the time I do that I am really moving. Are there any shift adjuster kits available? I do not want to change the way it shifts but when. I would assume that could be done through the computer.
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Old 08-23-2003, 12:33 AM   #2
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You would have to get a reprogrammed PCM. DHP offers a reprogrammed PCM for the 2000+ SSEi'*, it is $450. It will change shift points (downshift & upshift points), fuel tables, and lots of things like that. From what I have heard about the DHP PCM, for the $450 they will program the PCM for anything you want done to it, say you want the shiftpoints raised so it shifts at 6200 instead of 6000, they can do that. Say you want 20 degrees of timing advance instead of 17, they can also do that. I think if you got a DHP you would be quite suprised at what it does to the cars shifting and the power boost you get from it.

There is also an ASE chip available, but I don't know much about it, it may do some of those things also. I will let someone like 2000SilverBullet or somebody that has that chip tell you about that.
1990 Maroon Grand Prix STE McLaren 3.1 Intercooled Turbo, 14.695 @ 94.49 on 12psi before cam/heads/etc.
1990 Bright Red Grand Prix McLaren 3.1 Intercooled Turbo, 14.819 @ 92.72, 189whp
1999 Grand Prix GT 9.75:1|K&N|160 tstat|No Ubend/Cat/Res|UD Pulleys|Ported M90/TB/Heads|XPZ|2.55"|Pacesetters|Stage 2 I/C. 12.442 @ 112.78
2000 Blue Bonneville SSEi Supercharged Gutted Airbox|K&N|3.4"|1.9'*|WP Pulley|Custom DHP|180*stat|41932'*|No Cat. 14.681 @ 94.80
2002 Dark Cherry Grand Prix GTP Supercharged & Intercooled
12.084 @ 114.38 w/1.743 60', 315.6whp, Fastest Stock Cam M90 GTP!
NOW XP CAMMED, 340.6whp with XP, stock heads, Gen 3 M90, 11.984 @ 115.84 w/1.750 60'!
Most HP Stock Heads Gen 3 M90 GTP!
2004 Red Monte SS Supercharged K&N|3.4 Pulley|1.9'*|180*stat|41919 plugs|3" dp|No cat/ubend|DHP|Shift Kit. 14.2 @ 98
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Old 08-28-2003, 10:13 PM   #3
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I don't have either PCM mod just yet but do have info on the ASEchip.
Just checked their website and it says that they are not open for business right now!??

ASE Chips are programmed using the latest in technology.
When you purchase an ASE Chip you can be assured that you have bought the best chip in the market.
ASE does not promise more performance; ASE guarantees it!

ASE Chip provides the following:

INCREASED top speed governor to Mach 1.
INCREASED Rev limiter by 500 R.P.M. from stock.
INCREASED Ignition and Fuel tables.
INCREASED transmission line pressure.
Modified shift points.
OBD-II compliant; Means NO MILs.
Improved Drivability.
PNP Interchangeable Chip system. (The ASE Chip can be switch when need be, e.g., when taking your vehicle in for service or repairs.)

Note: The ASE Chip CAN NOT BE REFLASHED by the Dealer or anyone with a TECH II scanner.

ASE may be the New kids on the block, but, proven to be the BEST!
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