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/987 Boxster 5 speed G8701 2005.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/product_info.php?cPath=69_52_143&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
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/987 Boxster 5 speed G8701 2005.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/product_info.php?cPath=69_52_143&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