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post #1 of (permalink) Old 02-16-2012, 06:16 PM Thread Starter
MRDANGERUS
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WHAT TRANSMISSION COULD REPLACE UN1 ?

I would like to collect your thoughts on replacing UN1 with more durable and modern transaxle able to handle up to 400 lb-ft.
I'd like to start discussion by presenting an idea of using 6 speed Cayman S transmission.
I'm curious if anyone has installed one like this in his/her Esprit, yet?

California Motorsports Porsche 987 987c Boxster Cayman transmission section

http://www.californiamotorsports.net...701%202005.pdf

178.33 MPH at 7000rpm, cable shift. They're modern technology; shift lightly and more quickly than the UN-1 and you could use/adapt a Porsche Boxster shifter.Getrag rates them conservatively at 380nm which is about 280 ft-lbs of torque. For road use, not drag racing, one might get away with 400 ft-lbs.
Also available in Audi Avant version http://www.advancedautomotion.com/pr...products_id=29

TRANSMISSION SPECIFICATION

· Type: G87/01

· Original equipment for: Boxster 987 05-08; Cayman 987 07-08

· Description: H Pattern 5 speed manual transaxle with triple cone synchromesh (1st/2nd only) and synchronized reverse

· Limited Slip Differential: Not offered as optional equipment by manufacturer

· Speedometer: None

· Trans controls: Shift cables

· Clutch: Hydraulically assisted push clutch, single plate

· 1st gear 3.50

· 2nd gear 2.118

· 3rd gear 1.429

· 4th gear 1.091

· 5th gear 0.838

· Final drive 3.556
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Last edited by MRDANGERUS; 02-16-2012 at 07:44 PM.
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