dirtjumper895
New member
Hey all, i am looking for input on what i should do as a baseline for my 04 Viper Mtn that was stretched to a 162.....
I was told I had heelclicker's when i bought the sled, and I dont.
Last years setup was the 8dn10 Weights, with 2 rivets, (havent massed a weight out yet) and it looks like both stock springs and a straight cut helix which say Bxx51 (x's there for reference, i think it means a 51 degree cut?)
Sled engaged around 4k, and ran about 8700 with the Speedwerx triple pipes. 21/40 gearing 8 tooth extros, 100 degrees of secondary twist ..
This years setup is a 153 M series skid setback running the 162x15x2.25. Speedwerx triple pipes, speedwerx 12:1 billet head, 20/40 gearing, 7tooth cnc's 3 pitch exo's....... I want the sled to engage pretty low so i have a smooth engagement (like 3800 ish +- 200) and to peak right at 9100 RPM (what the pipes recommend). What should i do as far as:
base weights
rivets
Primary spring
Secondary Spring
Twist
helix
Any help would be greatly appriciated. I am kinda on a budget, but would be willing to spend 3-400 to get this sled dialed...
Thanks!
I was told I had heelclicker's when i bought the sled, and I dont.
Last years setup was the 8dn10 Weights, with 2 rivets, (havent massed a weight out yet) and it looks like both stock springs and a straight cut helix which say Bxx51 (x's there for reference, i think it means a 51 degree cut?)
Sled engaged around 4k, and ran about 8700 with the Speedwerx triple pipes. 21/40 gearing 8 tooth extros, 100 degrees of secondary twist ..
This years setup is a 153 M series skid setback running the 162x15x2.25. Speedwerx triple pipes, speedwerx 12:1 billet head, 20/40 gearing, 7tooth cnc's 3 pitch exo's....... I want the sled to engage pretty low so i have a smooth engagement (like 3800 ish +- 200) and to peak right at 9100 RPM (what the pipes recommend). What should i do as far as:
base weights
rivets
Primary spring
Secondary Spring
Twist
helix
Any help would be greatly appriciated. I am kinda on a budget, but would be willing to spend 3-400 to get this sled dialed...
Thanks!
This is from pioneer performance, their clutch kit for the 02-03 Vipers running Speedwerx pipes is the 8EK weights, 4.5 inner, 3.6 outer, yellow/white/yellow spring, no shims...a 51/45 secondary helix from them, silver secondary spring, set at 70degrees(6-1) and run 9000 rpms, all they changed was in the secondary...the directions direct from speedwerx say the same thing...putting speedwerx pipes on a mtn viper this year, see how it goes setup stock and go from there
dirtjumper895
New member
How do the 8EK weights compare to the 8DN's? I cant seem to find a chart anywhere. I was thinking the 8dn-10's were close to 39.76 grams unloaded..... Should i have this posted here or over on the SRX/Viper forum?
WNYViper
New member
Last edited:
I know just the gearing drop will raise rpm,s a little. Go to a primary spring 1 step down in preload & your engagement should be right at 3800.
Whoa...this makes my brain hurt as I have some clutching to do...guess soon enough I'll be able to add that to my list of a great many mechanical skills.
dirtjumper895
New member
Yea, im waiting on the weights and springs to get here, then a little snow to do some testing on...