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Print in friendly format Send this term to a friend  4L80E
Automatic Transmission - 4 Speed

1st Gear: 2.43
2nd Gear: 1.49
3rd Gear: 1.00
4th Gear: 0.75

Reverse: 2.07

- Used in production GM models...
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Re: My new Penskes are in!

Subject: Re: My new Penskes are in!
by ghoffman on 2008/5/12 16:35:16

quote]Anxious to hear what the price will be for these[/quote]
Soon, perhaps this week. In the mean time, we have them all up and running now.This is our shot at "the best", using a Penske 8700 3 way with VDP's (velocity dependant pistons). If you can find a better setup, anywhere, please let me know. We have studied most of the Euro and other brands, and some do some things well, others do other things well. We incorporate the best from the others and incorporate them in this package. These incorporate all of the improvements that we have been showing for a couple of months. They are the product of many, many hours optimizing the mechanical configuration by using specific length bodies, shafts and end attachments so that the tires do not hit the bodywork, and we maximize droop while maintaining spring and CV joint boot clearance.

Front:
[IMG]http://i67.photobucket.com/albums/h287/gshoffman/Corvette%20shocks/IMG_0407.jpg[/IMG]
[IMG]http://i67.photobucket.com/albums/h287/gshoffman/Corvette%20shocks/IMG_0408.jpg[/IMG]

Note the rebound adjuster (the set screw near the lower bearing and new super alloy "T" bar. Just insert a ball driver and you have 40 clicks of adjustment. The new T bar is 2x the yield strength of the Penske part and is easily removable for spring changes.

[IMG]http://i67.photobucket.com/albums/h287/gshoffman/Corvette%20shocks/IMG_0406.jpg[/IMG]

Rear:
[IMG]http://i67.photobucket.com/albums/h287/gshoffman/Corvette%20shocks/IMG_0419.jpg[/IMG]
Note the setscrew rebound adjuster similar to the front but incorporated into the rear clevis. The quick pin is for ease of spring changes since we will be offering this package to a variety of customers (some lighter and with downforce) and is not planned for production, but is an aid for us to be able to do rapid spring changes.

[IMG]http://i67.photobucket.com/albums/h287/gshoffman/Corvette%20shocks/IMG_0420.jpg[/IMG]
[IMG]http://i67.photobucket.com/albums/h287/gshoffman/Corvette%20shocks/IMG_0416.jpg[/IMG]

The new upper mounts eliminate the upper pin top mount with a very solid Hardbar unique mount that has zero slop (US made CNC billet aluminum and SS shoulder bolts) and no threads in shear. It is very quiet with no rattles and very low friction US made Aurora bearings, and is adjustable in 2 axes for spring clearance. These are available separately for other brand shocks. You can also see our stud kit made of the same allow as the T bar.

Front:
[IMG]http://i67.photobucket.com/albums/h287/gshoffman/Corvette%20shocks/IMG_0403.jpg[/IMG]

Rear:
[IMG]http://i67.photobucket.com/albums/h287/gshoffman/Corvette%20shocks/IMG_0415.jpg[/IMG]

Even the small stuff was not overlooked, plastic covered SS hoses, new high and low speed adjusters, synthetic oil, new easy to adjust spring perches on Acme threads, and every one is dyno tested and the data is included in the purchase.
This setup is available in non-adjustable, single adjustable (with your choice of having the adjuster be bump or rebound), the superb 8300 series doubles, or the top of the line 8700 triple shown here;

[IMG]http://i67.photobucket.com/albums/h287/gshoffman/Corvette%20shocks/DSC_0001.jpg[/IMG]
Thanks!,
Gary
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