Not an Ultima but (kinda) similar.
Discussion
What ho
I am just completing the build of a (RCR) GT40 replica. Alloy monocoque, 560 bhp Kinsler injected LS7, Quaife ZF-Q weight 1012kilos with fuel, water and oil due for IVA on the 15th Nov (sweet joy). Reason for the post is that the clutch is very heavy for road use and I understand that some of you have fitted clutch servos to your wondrous motors. Some pics or a schematic of a typical installation would help me greatly.
Many thanks in eager anticipation
John
I am just completing the build of a (RCR) GT40 replica. Alloy monocoque, 560 bhp Kinsler injected LS7, Quaife ZF-Q weight 1012kilos with fuel, water and oil due for IVA on the 15th Nov (sweet joy). Reason for the post is that the clutch is very heavy for road use and I understand that some of you have fitted clutch servos to your wondrous motors. Some pics or a schematic of a typical installation would help me greatly.
Many thanks in eager anticipation
John
'Ello
Thanks to those who answered, however I have played around with the master and slave to no avail. Reducing the master, whilst decreasing pedal pressure leaves to little displacement to fully release the clutch. With regards to the Quaife gearbox there are folks running around 600bhp and around 460 lb.ft seemingly without failure (other than one abused example). These are higher numbers than Quaife quote (page 24 of their pdf brochure) but I suspect these are conservative. There are guys running the original ZF at around this power with (I believe) 75mm shaft centres against 85mm on the Q.
I guess Mick Sollis is the best guy to give you chapter and verse on real world usage but last time I spoke with him he had high praise for the Q.
My problem remains, any pics of a clutch servo?
Regards
John
Thanks to those who answered, however I have played around with the master and slave to no avail. Reducing the master, whilst decreasing pedal pressure leaves to little displacement to fully release the clutch. With regards to the Quaife gearbox there are folks running around 600bhp and around 460 lb.ft seemingly without failure (other than one abused example). These are higher numbers than Quaife quote (page 24 of their pdf brochure) but I suspect these are conservative. There are guys running the original ZF at around this power with (I believe) 75mm shaft centres against 85mm on the Q.
I guess Mick Sollis is the best guy to give you chapter and verse on real world usage but last time I spoke with him he had high praise for the Q.
My problem remains, any pics of a clutch servo?
Regards
John
'Ello
Thanks to Steve and Hoonigan. I suspect my set up is a little different to Micks as it contains a special one off flywheel/clutch to go from a LS7 crank bolt pattern to a Ford dimensioned flywheel (required by the bell housing). In principal should not make a difference but loathed (at this stage) to try a different (softer) clutch.
John
Thanks to Steve and Hoonigan. I suspect my set up is a little different to Micks as it contains a special one off flywheel/clutch to go from a LS7 crank bolt pattern to a Ford dimensioned flywheel (required by the bell housing). In principal should not make a difference but loathed (at this stage) to try a different (softer) clutch.
John
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