Uniquedreamz Posted June 18, 2004 Report Share Posted June 18, 2004 Just wanted to know if the auto tranny in a '93 C/S auto w/LQ-1 is computerized? B&M has a new plug in controller for computerized GM auto tranny's that give you 3 shift firmness settings (firm,VERY firm, factory) and is about $50. anything to avoid taking the car to a shop Quote Link to comment Share on other sites More sharing options...
loominaz34 Posted June 19, 2004 Report Share Posted June 19, 2004 If it's the 4T60-E the E stands for electronically controlled. I believe your car would have one. Quote Link to comment Share on other sites More sharing options...
Crimson Fury Z Posted June 19, 2004 Report Share Posted June 19, 2004 ooh! interesting! i, too am interested in this. its like the throttle response thingy in summit for 8?-93 GMs Quote Link to comment Share on other sites More sharing options...
runt Posted June 19, 2004 Report Share Posted June 19, 2004 You should post a link. That'd be cool. Quote Link to comment Share on other sites More sharing options...
loominaz34 Posted June 19, 2004 Report Share Posted June 19, 2004 I think I saw it in jegs but it's only for RWD cars. It is quite possible that there's a new version I don't know about. Quote Link to comment Share on other sites More sharing options...
Uniquedreamz Posted June 19, 2004 Author Report Share Posted June 19, 2004 I actually just saw this unit the other day (Wed) on Horsepower TV's upgrade garage. And yes apparently it's brand new. I will go to B&M.com and see is i can aquire a link. Quote Link to comment Share on other sites More sharing options...
Uniquedreamz Posted June 19, 2004 Author Report Share Posted June 19, 2004 This unit says it does the same as the one I saw on HPTV but looks a little different. The one they had on HP had a pivet switch for the 3 settings. May just be a diff one in the pic. http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=3224&prmenbr=361 Quote Link to comment Share on other sites More sharing options...
sonyman87 Posted June 20, 2004 Report Share Posted June 20, 2004 that can be a good or bad thing... if your tranny shifts to hard it will start tearing things up inside if it shifts to slow its bad for performance and hurts your slip plates Your stock shifting system does a great job by itself, but if you want performance gains from the 4t60e you want to be able to rev a little higher in each gear to keep each gear good in the powerband. Theory: the trany will shift differently depending on power intake form the motor. Once the power starts to taper off from the motor it will shift gears. Sometimes it will do this even if you still have more rpms to go but if the motor isnt producing the power, its not going to use the extra rpms. Thats where short shifting comes in. My tach isnt 100% accurate but WOT out of 1st i shift at ~6500rpms out of 2nd i shift ~6400rpms and if in overdrive i shift out at ~ 6100rpms the peak power stock on my motor is at 5800rpms at 210hp and begins to taper off further up the rpm range. Each shift point is in a different location b/c the motor isnt producing enough power or isnt accelerating fast enough to indicate there was an advantage in keeping the trany in its particular gear. If you want your car to throw you back into 2nd you want to modify your motor to performe better at topend (high flow intake, exaust, P&P, computer chip controling shift points, and or force induction) I get alot of crap for having a chip for 95chip from hypertech and someone has tested the difference in all the chips and none generated more then 1hp at the wheels.. what they didnt take note is the shift point differences and the amount of tq the motor produced in that lower rpm. immidiatly after i installed the chip i noticed shift into 2nd was way stronger then the stock form. I noticed on gtech a .2 second gain in the qt mile time average. I may not be producing more hp at the wheels with it but its helping me retain my powerband with its raised shift points(~200rpms over stock). Quote Link to comment Share on other sites More sharing options...
joey b Posted June 21, 2004 Report Share Posted June 21, 2004 there is still a vacuum hookup to the tranny. The difference in vacuum affects the firmness of the shift, but the computer tells it when to shift. Quote Link to comment Share on other sites More sharing options...
GrandPrix34 Posted June 21, 2004 Report Share Posted June 21, 2004 I heard that you can buy a vacuum modulator for a Cutlass Supreme and use that instead of the B&M shift thingy. If you want to feel what it is like to have firm shifting, just unplug your tranny vacuum line and go for a test drive...very very firm shifting but the shifting back from 4 to 3 to 2 to 1 feels very very rough and harsh. Seriously, I remember this kind of post A LONG time ago and they mentioned using a vacuum modluator you can get at AutoZone for $15. Quote Link to comment Share on other sites More sharing options...
4spdz34 Posted June 21, 2004 Report Share Posted June 21, 2004 not sure if autozone sells a adjustable vaccum modulator, but i know i do and it comes in my shift kit. but its not all about raising line pressure, u want to increase flow and volume of the fluid. if u increase pressure u will only blow seals. shifting hard is not bad, only when u get really extremme can it be. this b&m kit has been around for years, what it does......... it goes inline with teh vacuum line to the vaccum modulator, it then has 3 settings, when u move the switch u are moving a variable orifce and restricting vaccum flow to the VM. i do not suggest unpluging the VM it will give u harsh garage shifts and it will only firm up part throttle shifts cause there is no vaccum anyways. Quote Link to comment Share on other sites More sharing options...
GrandPrix34 Posted June 21, 2004 Report Share Posted June 21, 2004 still got GM torque converters? =) How bout gearing for 3.73? Quote Link to comment Share on other sites More sharing options...
4spdz34 Posted June 21, 2004 Report Share Posted June 21, 2004 still got GM torque converters? =) How bout gearing for 3.73? i sell it all, for a extra 300 i can have intense make it a lsd too. highest stall i have is a 3200. stock stalls are around 1400-1600. the 3.4 cars have a 2000 stall stock cause there lowend sucks that bad. Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted June 23, 2004 Report Share Posted June 23, 2004 It won't work. 4T60-E is computerized shifting only. Shift firmness is conventional old vacuum modulator controlled. It's kind of a hybrid tranny, part new, part old. Quote Link to comment Share on other sites More sharing options...
Vegeta Posted June 23, 2004 Report Share Posted June 23, 2004 I dunno how the hypertech did that...they dont change shift points, spark retard during shifts, nor have the ability in the computer to raise the fluid line pressure. Quote Link to comment Share on other sites More sharing options...
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