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105# Springs or 130# for a XP Hot Cam?



Also need to keep in mind that double rollers have a life as well... Especially with 130's and up. They have been known to stretch over time, abuse, etc.
 
danomite02 said:
do a double roller. you never know where your build will end up. I just snapped my single roller on my xp cam twincharge
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Ouch! guess i will be grabbing a double roller timing chain then...130#springs would be ideal with the double roller right? how much upper rpm's to expect? i know not much but everything helps right?
 
I think you should ask yourself what you want from the car and motor in the future. Do you want a quick daily driver or a little faster weekend car or a race car that you trailer to the track? The bigger the build the less dependable. Try to match your build to your long term goals. Just my 2 cents...
 
If the car is your daily driver just go with 105's, a new stock chain setup and raise the idle to around 900rpm. It will be more than fine for a good, long time.
 


Yeah I do want a dd but a nice track car to run 12's you know beat some gto's camaros chargers I guess I will go 130# springs with the double roller

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crbquist said:
Then get a much bigger cam than the xp, some ported heads to compensate the cam, convert to E85, a built trans, and run a tiny ass pulley.
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This


I'll sell the xp then lol xpz or is3 cam? Heads gettin port and polished as we speak at the machine shop What are you guys thoughts on those cams?

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