clutch tuning and weather

JeepTherapy

JeepTherapy

New member
Joined
Dec 26, 2005
Messages
533
Age
64
Location
Negaunee
I finally got the heel clickers and installed them. I went with their recommended setup for stock viper except I used the grey spring. I got 4.6 heal and 3.3 center. Secondary is stock spring and helix at 60* wrap.

Engagement is 4100 RPM and it goes right to 8300 and hangs there. Indicated 110 on the speedo with this setup. I am not sure I like the way it shifts with the grey spring. I think it shifts out a little too fast and doesn't backshift fast enough. I am a little unsure though as this is my first time clutch tuning.

Here is my question. When I got to the trail to test yesterday it was already 40* outside. Will that temperature make my tuning off? Should I just leave it as is until I get a colder day to tune? If it is OK to tune in that weather can I just take out some heel weight to both raise the engagement and top RPM? Should I ditch the grey spring in favor of the red spring to improve my backshift or should I tune backshift with the secondary?

Thanks for any assistance,

Chris
 

your chasing your tail trying to tune it in at those temps, warm weather means a richer running engine and lower hp, so your rpm will not be correct as the sled cant pull as much weight when its warm out because of the hp loss due to being richer.

Also, with h/c's I have no use for the gray spring, it doesnt allow you to run as much weight and you need the weight to clamp the belt with them. A very good set up with a single piped viper is the red primary spring, 3.3 middle hole and 4.3 tip with a 48/34 helic with red spring at 90, they run pretty stout with that.
 
mrviper700 said:
your chasing your tail trying to tune it in at those temps, warm weather means a richer running engine and lower hp, so your rpm will not be correct as the sled cant pull as much weight when its warm out because of the hp loss due to being richer.

Also, with h/c's I have no use for the gray spring, it doesnt allow you to run as much weight and you need the weight to clamp the belt with them. A very good set up with a single piped viper is the red primary spring, 3.3 middle hole and 4.3 tip with a 48/34 helic with red spring at 90, they run pretty stout with that.
Click to expand...

Thanks, confirms what I thought. Little disappointed that the weather and shipping from Canada didn't cooperate with my plans. I also have pipes for it for next season. I plan to change out the helix after I put the pipes on as I have the Bender 02VTP helix and no idea what the angles are on it.

I just need to find someone to mod my head for me and pick up a couple small parts. I have some other issues I want to fix before I pipe it also.
 
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