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Discussion Starter · #1 ·
[attachment=51149]

I am planning on using the setup suggested by slp.
Primary ramp 10-58 P.N. 1321588
Spring Almond gold P.N. 7041645 150/290
Driven spring P.N. 7041646
Helix Progressive P.N. 40-40/34
Slippery buttons P.N. 40-9

I believe the sled is currently stock. so the primary ramp is 10-56 and the spring is 120/310. It currently engages at 4000 rpm and the shift rpm is 7800 according to the shop. At full throttle the rpm tops at 8250. (if the guage is accurate). My question is what would the new setup do to the engagement and shift rpm? Isn't the target top rpm at 7800 because thats the peak hp? thanks!
 

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You normally spin alittle over because you will be putting load on the engine that the dyno doesn't. I would guess that it will be engaging around 45-4800 with shift being 79-8100rpm.
 

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Originally posted by xcr440
[br]You normally spin alittle over because you will be putting load on the engine that the dyno doesn't. I would guess that it will be engaging around 45-4800 with shift being 79-8100rpm.
Thanks, i was just trying to get a better idea and hopefully learn something
 

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if you are spinning at 8250 right now your tach is off. or you are giving up performance. if your power is at 7900. then you want to be somewhere between 7800-8000. so on a 30 degree day it might be running at 7800. and at -10 it will be spinning at 8000.

it is normal for a clutch kit to make the tach run lower than you are used to. if you are used to hitting the gas, and the tach jump to 8250. now you put in the clutch kit. now the tach might jump to 7800 and slowly creep to 7900. it is making the sled pull hard. it is also getting the pipe hot with a heavy load. making more hp.
 
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