12-06-2009, 05:57 PM
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#1
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GX Member
Join Date: May 2009
Location: Michigan
Posts: 182
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Top Speed on Regular tranny?
if i did throw a turbo in and had the tuning program, how would shifting work? would i only be able to go like 110 on the stock trans or could i change it to be able to go up to like 130 or 140? this is totally hypothetical. its just a thought that crossed my mind.
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12-06-2009, 06:00 PM
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#2
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Canada's Ghost
Join Date: Sep 2008
Location: Alberta
Posts: 1,831
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I would assume points would stay the same unless you adjusted them by increasing line pressure manualy or through tuning.
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12-06-2009, 06:13 PM
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#3
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GX Member
Join Date: May 2009
Location: Michigan
Posts: 182
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if i did it through tuning could i stretch them out that much?
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12-06-2009, 06:39 PM
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#4
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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i think you can go 140 on the stock trans anyway.... btw.... speed is not EVERYTHING
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12-06-2009, 06:43 PM
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#5
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GLS member
Join Date: Jun 2007
Location: Utica, Michigan
Posts: 2,227
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well, at the electronically limited 108 mph, the car is in 3rd gear so you still have a whole other gear to use. just throwing alot of power and speed down without suspension upgrades and tire upgrades would make the car a suicidal death trap. Supposibly the car is not limited by the gears, but by air drag in the 130's area. Where do you plan to drive at speeds this fast anyway?
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2000 Chevrolet Malibu LS
2000 Oldsmobile Alero GL (sold)
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12-06-2009, 07:13 PM
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#6
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If you remove the limiter in the PCM, the tranny will push the car to 140MPH and beyond (provided you have the horsepower). But please don't try on public roads.
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12-06-2009, 07:24 PM
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#7
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Aleromod part owner
Join Date: Nov 2003
Location: Far Northeast Philadelphia, PA
Posts: 18,199
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According to the math, the Alero's top speed would be 145 MPH at 6000 RPM's, the Grand Am would be 134 at the same RPM
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12-06-2009, 07:46 PM
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#8
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GX Member
Join Date: May 2009
Location: Michigan
Posts: 182
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whoa chill out guys ahhaha im not going to go that fast. i was just wondering if it was possible.
hahaha thanks for the info  |
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12-06-2009, 08:16 PM
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#9
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Now a Ford Traitor.
Join Date: Mar 2008
Location: Greenland
Posts: 6,996
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yeah, it's possible... should you? not on public roads
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12-06-2009, 08:35 PM
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#10
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GX Member
Join Date: May 2009
Location: Michigan
Posts: 182
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no, i wouldnt on public roads. if i took it to the track maybe. like a race track, not drag strip
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12-06-2009, 09:22 PM
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#11
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V.I.P. Member
Join Date: Jan 2004
Location: northern wisconsin
Posts: 2,428
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"air-drag limited" is a joke
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12-06-2009, 10:03 PM
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#12
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V.I.P. Member
Join Date: Nov 2003
Location: Plano, Tx (dallas)
Posts: 1,643
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When my car dyno'd after my turbo install. My reflashed ecu had the speed limited (governor) moved higher. They dyno shop went past 140. I think it was 145. It could of went more like 5 more mph but we cut it off there.
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I dont have an alero no more...
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12-07-2009, 11:35 AM
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#13
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i speed up for corners
Join Date: Apr 2009
Location: Dover,NH
Posts: 3,489
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ya not on public roads please
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12-07-2009, 02:02 PM
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#14
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GL Member
Join Date: Jan 2007
Location: Michigan
Posts: 252
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Ive have a modded ecu to go 140 +....
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BUILDING A V8 ALERO 2DR 
Last edited by A57 : 01-14-2010 at 07:26 PM.
Reason: excuse me kwhauck dont put words in my post buddy.
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01-14-2010, 01:56 PM
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#15
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GX Member
Join Date: Dec 2009
Location: detroit
Posts: 5
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how do you get the limiter off the pcm
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01-14-2010, 02:08 PM
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#16
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GX Member
Join Date: Jan 2010
Location: Niagara Falls, NY
Posts: 80
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Quote:
Originally Posted by icecold
how do you get the limiter off the pcm
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Using a tuner
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2003 Alero GLS Coupe
 <--- Will eventually look this sexy.
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01-14-2010, 02:56 PM
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#17
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GLS member
Join Date: Aug 2006
Location: Grand Forks, ND for school; Langdon, ND home
Posts: 2,632
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Quote:
Originally Posted by icecold
how do you get the limiter off the pcm
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tuner or diconnect your speed sensor (forget the actual name) but if you disconnect the sensor you lose your speedo also. btw, whenever you mention stuff like this, make sure you throw in of course never on a pulic road 
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01-14-2010, 05:05 PM
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#18
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GL Member
Join Date: Oct 2009
Location: Central WA
Posts: 302
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You can even rig a toggle switch on the one wire that comes from the sensor on the tranny but never on a public road.
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01-14-2010, 05:11 PM
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#19
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636 whp
Join Date: Aug 2006
Location: AZ
Posts: 11,876
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Top speed is rev limited on the 4T40E to somewhere around 187ish MPH.
You clearly don't know too much about how things work otherwise your first post wouldn't say what it does. So don't worry about these things until you need to. There is no reason to go that fast. Imagine hitting a pothole, or otherwise having a blowout. Or the axle's blowing apart. The speed limiter is there for a reason. Once you go beyond, you may go beyond what each rotating part on the vehicle is designed to safely handle.
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01-14-2010, 07:28 PM
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#20
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GL Member
Join Date: Jan 2007
Location: Michigan
Posts: 252
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Buy...
Quote:
Originally Posted by icecold
how do you get the limiter off the pcm
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A tune PCM/ECU....
( i have one forsale)....also there is DHP... 
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BUILDING A V8 ALERO 2DR
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