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282 info and swap help!


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I'm sure most of you have seen the pics of my turbo setup. To make a long story short, my tranny's definitely not happy. It seems that a complete 284 setup will run me $1500 locally and a 282 setup is only $350 for everything! Would this tranny be able to handle 300+ hp and shifting at 7k rpm? If it will, but not for long, is it rebuildable and for how much $$$?

Are there any differences between a 282 and a 284 swap?

The only built 4T60E's are about $3k!

 

Tim

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Oh yeah, the Getrag 282 will hold. Some of the Fiero guys with 5.7L V8's are using them and haven't had a problem. There's been a few posts about this and the 282 is the better choice due to parts, compadibility, and of course the downright fun factor. You should have no problem holding the power. The concern you may have is that doesn't the PCM for the OBDII run the automatic transmission? If so, will 'getting rid' of those sensors or no signal input effect performance or give a Service Engine Light? Perhaps someone has an answer for that!

 

- RedFox340

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The guys using them in thier fieros and bolting up 350s to them arent they still having to buy that adapter for their bellhowsing on thier tranny.I looked at the v8 adapter kits from V8-Archie.com

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Guest TurboSedan
and a 282 setup is only $350 for everything!

 

Tim

 

where 'ya getting the Getrag 282 from? btw, i'm in Gillette today and tomarrow - i'll keep my eye out for your car.

joshua

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The car's only OBD 1 so there's very rudimentary tranny control from what I can tell. It shouldn't be too hard to make it work with a manual, though I could be really wrong about that. I'd need to do a lot more research into it before I'd have any idea. Right now I was just wondering if it was even a viable option.

 

Tim

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A manual on a ECM that thinks its an auto will probably lead to some stalling and other bizzar problems.

 

So, what did you do and how bad is your trans now?

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Ever since I got my intake and exhaust on, 2 or 3 years ago, my tranny has slipped sometimes shifting from 1st to 2nd. I found out that I'd gained maybe 25 hp at redline and I guess it just didn't like that. It would try shifting and take a few seconds to complete she shift and it seemed like it would lower speed halfway, pause, and then go all the way down to where it should have been. Now with the turbo, either it goes into 2nd, or it completely misses and bounces off the rev limiter. I've been lifting between 1 and 2 to try to extend my tranny life. It's working if I only use 3/4 or 1/2 throttle when it tries shifting. Something I've heard is that a lot of w-body computers have a manual tranny flag in the automatic ECU code even if that motor was never offered with a manual. I'd be very interested in seeing if the 94-95 ecu did, but I'm not sure who could find it.

 

Tim

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Couldn't you use an older computer from a 5-speed DOHC? Although they were MPFI and the 94+ are SFI, that might mess stuff up a little. It would probly be hard to find one too.

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Guest TurboSedan

you probably already know this Tim, but you are going to have a helluva problem getting the clutch pedal mounted since your car was made after '93.... just something to consider. actually i think that's the reason brian89gp sold me his Getrag 282.

joshua

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Yep, a smaller brake booster is needed as well as tearing apart the dash to put the 88-93 style clutch pedal mount bracket.

 

That's not that bad. I saw the pics on club gp about the swap and how the clutch and brake pedals used the same style frame/bracket on both the MT and AT cars. I figured that wouldn't be much of a problem. I think the biggest problems would be the braking system, the computer, and the center console.

 

Tim

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I have a 96 GTP with a 282 5 speed, just got done with it about 3 weeks ago. I have just about all the problems lined out. It runs great. The only problem I had was it would sometime die at stoplights and it would hesitate after 1st, but it was corrected when the speedometer was hooked up. Now it idles at 1400 rpm until the car comes to a stop, and no hesitation. Awesome wow factor to. If you decide to go for it get a hold of me and I will give you some pointers. It took me a month and a half though, I worked as soon as I got off of work until 10-12 at night and 9am-11pm on weekends. I went through some extra BS though that could of been avoided.

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I'm definitely be looking forward to hearing about it. 1.5 months is quite a while! I'd like to find out as much as I can about the swap before I actually decide anything.

 

Tim

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Guest TurboSedan

can a Getrag 282 hydraulic clutch setup work with the 284? the 284's system seems so much more complex altho i have never really got a good look at a 284 setup. and how/where did he get a cable clutch? homemade?

joshua

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Slightly mixed up. I have a hydraulic clutch with my 282. I used all the stock components in a 90 STE If you want E-mail me and I will give you my cell #. I won't get you e-mail until I get to work on Monday. I would also like to know about your turbo add-on. I have a friend with a 96 Impala SS and me and him run side by side up to about 100 or so. I kinda need to go faster, he is looking into putting a big block in the SS.

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actually that was for the chevy's as it says under the tranny pics. So im guessing cavs or luminas or a monte in some year they made em

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A cable release might be a better route. My clutch petal barely comes an 1" or so off the floor board and then it grabs and really good too, so it barely releases but it seems to work. I need to make a extension on my clutch master cylinder actuater rod so that I will have more petal travel. Now the clutch petal sets about an 1/2" behind the brake petal instead of infront of the petal like the in the STE.

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