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 Post subject: fast driving in highest gear (automatic)
PostPosted: Mon Feb 20, 2006 9:37 pm 
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Location: Lohne, Germany between Bremen and Osnabrück
One of my friend is driving a 1994 LT1 trans am. When you are driving over 200 km/h and then you want to drive a little bit faster, than the automatic transmission is going very fast one gear down and the engine scream up. For example, when you are driving a LS1 automatic, then it will not happened.

Is there anything, what he can do, that this will not happened? A module, power programmer or somethin else?


I hope, you understand, what i mean. (Bad english)

Jens

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PostPosted: Tue Feb 21, 2006 8:37 am 
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Location: Mehlingen,Rhineland Pfalz, Deutschland
Programming

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PostPosted: Tue Feb 21, 2006 9:28 am 
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I don't think programming will do it. There is a valve for the 3-4 shift that has to be either modified or replaced. I could be wrong on this. My 95 Camaro Z28 was the same way. Under wide open throttle it would not shift from Drive to Overdrive. I replaced the tranny with an aftermarket high performance tranny and it would shift to overdrive under full throttle.

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 Post subject:
PostPosted: Tue Feb 21, 2006 10:00 am 
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Location: Lohne, Germany between Bremen and Osnabrück
i know, that i can buy a valve for the TH700 transmission. But i can´t find one for the 4L60E.
I don´t know if the hypertech programmer will help...

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PostPosted: Tue Feb 21, 2006 10:10 am 
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Jens, what's up with the "Sold" on your sig picture? Had it on there last night, gone now again ... don't tell me you're selling the V8-converted 'vert after going through all the trouble?? (guess it's all dependant on the price somebody's willing to pay ;) )

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 Post subject:
PostPosted: Tue Feb 21, 2006 10:48 am 
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Location: Lohne, Germany between Bremen and Osnabrück
i´ve sold my camaro last week. The money was ok for the convertible.
I sold my camaro, because i want to buy a house.

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PostPosted: Tue Feb 21, 2006 11:05 am 
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Sorry to hear, and congrats for deciding on getting a house ... hope you find something decent and affordable!!!

And just pick up a new 'maro in '08 with the LS2/LS6/LSwhatever ;)

and just noticed it's still there, just the browser chached the old version of the pic ...

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"Horsepower is how fast you hit the wall and torque is how far you take the wall with you."
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PostPosted: Tue Feb 21, 2006 12:23 pm 
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hey jens good luck with the house and I agree that a house is better then a car. I know in the 700r4 you could get a vette servo or 3-4 valve I don't really remember. I don't know about the 4l60 I really don't know how much is computer controlled on it.

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 Post subject:
PostPosted: Tue Feb 21, 2006 2:04 pm 
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Location: Lohne, Germany between Bremen and Osnabrück
I´m thinking of buying this LT1 trans am. It is a 1994 with 69000mls. US-Modell in black with darkgrey leather and t-tops. It has german papers, etc.
It is better, to keep the money for the house, i found a very nice house, lets see, if i can buy it. The decision of the house will be on march 8th.

Thanks for your wishes.
When somebody knows more about a valve or something else, please let me know.

Jens

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PostPosted: Tue Feb 28, 2006 8:22 pm 
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When somebody knows more about a valve or something else, please let me know.

Jens ,
Part of the problem can be solved with the Vette Servo (see URL: http://www.700r4l60e.com/store/catalog/ ... p-162.html) for an example. I have 3 F-bodies & two use the 4L60 trans & high speed driving with a weak 4th hold will start to burn the clutch pack.

Superior makes a kit (P/N A74902H ) that is advertised as: "700R4 / 4L60 / 4L60E, 4th apply Super Servo by Superior
Superior # K034, comes with 4th apply piston, cover and seals for better holding capacity in 4th gear. Lip seal design ".

See URL: http://www.bulkpart.com/Merchant2/merch ... 700R4servo
I hope this helps a bit!

Gary

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 Post subject:
PostPosted: Tue Feb 28, 2006 9:02 pm 
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This helps alot. Thank you for the info.

Jens

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PostPosted: Tue Feb 28, 2006 10:13 pm 
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Remember that our cars will produce a lot of heat in the trans at high speeds (US Freeways or on the Autobahn). I have never noticed a trans problem at 200 kph (125 mph) but it is very rare that I can keep these speeds up without having full air & ground support from the CHP (California Highway Patrol) or Autobahn Polizei as I remember them in Germany.:x :x There was one event where I was able to do 145 mph ( 233 kph) for about 4 minutes when I noticed the dropping out of OD issue. About 5 months later my Z28 had burned 4th gear clutches. You can guess what parts were included in the updated rebuild. Now, I use 28,000 lb trans coolers in all of my cars & thats running 160 degree F thermostats. Watch your readend oil also, I use Amsoil 100% synthetic to help the rear stay cool. The 3.5 hours of high speed desert driving between the California coast & Las Vegas during the summer can be a real trans or rearend killer!! My next trans update will be with a modified 6L80E & I can't wait to get started, 400+ hp & 6-speeds!!. I will ship one of my cars to Germany during a business trip to "test" that trans out. It should support 180+ mph (290 kph) Autobahn runs with very little engine changes.

Good luck!

Gary

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PostPosted: Mon May 21, 2007 9:36 pm 
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Red F18,
Wow, 180 in a F-body ! Your more brave than most.....

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