Jwright41

iTrader: (2)

Any one running this? Didnt know how much lift the stocks could handle. I dd the car and it is a 2002 M6 with a Monster lvl 2 clutch. Heads a bit out of the budget for now.

MM98

iTrader: (13)

No!!!! Unless you want to drop valves & buy a new engine.. I wouldn't run anything less than a good .650 lift dual spring.

slt200mph

iTrader: (42)

Not a good idea ...

bjamick

iTrader: (31)

You will become the next fail poster.

disc0monkey

iTrader: (10)

you'd have more luck pissing a 150shot in it.

Ethan[ws6]

iTrader: (13)

I used comp 918's because I was running low on $ when I did my build. I've run them for 3k miles and I'm upgrading to dual springs

janaka

iTrader: (7)

I'd upgrade to at least 918's IMO. Stock springs are good for stock cams and thats about it.

I have a set of 918's that I ran for 3000miles before I got TSP heads which had springs on them. $75 shipped and you can have them

WSsick

iTrader: (13)

There's a reason you never see people do that......but if you want to be the first, don't complain when your wallet feels a little light and your car sounds funny.

It would answer your question pretty easily.

Jon@Texas-Speed

iTrader: (18)

Stock springs will not handle that much lift on that lobe. IMO, Comp 918 springs or PAC 1218 springs are a minimum for that cam. We always recommend springs and pushrods with any cam. We see stock cars come in all the time that are floating valves with the stock springs on the stock cam on the dyno. Wait and put springs on with the cam. Your wallet will thank you!

Jon

xricer

I was thinking about getting that cam too when I get my tax return, just really like the sound of it after watching alot of videos and seems like it makes lots of power even with stock 241 heads. My question is if you buy top of the line double springs that are good for up to .650 lift do you still have to change those out every 20k miles or so? I've heard guys on here say change springs every 10k, 15k, 20k miles!? Does it have alot to do with how hard you drive? How much lift the cam has? If I had to change my springs every 10k miles that would kind of discourage me from doing a cam swap, that just seems like an awful lot of money for me to spend in such short interval.

Jwright41

iTrader: (2)

Go to know guys!!! Figured it would be bad but wanted to see the results. New springs and rods then...

$750 L98

iTrader: (7)

I would go with a double spring. I just don't trust 918's as much as I've seen go wrong with them. My T2 cam really liked the comp 921s, they are a beefy spring.

Dumb *** mechanic that put my motor together tried running the cam with LS6 yellow springs...can you say valve float?

garygnu

pac 1518 will work and TSP has them.

MM98

iTrader: (13)

20k is probably close to the max on most springs when using XER lobes.. The agressive ramp rates are what put a hurting on the valvtrain.

xricer

20k I think I could live with. So its not how much lift that wears out springs just how fast the ramp rate is? I think I'd be willing to sacrifice some power to have longer lasting springs, sorry to hijack thread

MM98

iTrader: (13)

Lift plays a roll, but when you match the cam with a proper spring you can get more life out of them.. I wouldn't use a spring thats rated at .600 lift when max on the torquer 2 is .598, you see what Im saying?

xricer

gotcha

SOMbitch

iTrader: (8)

There are alot of variables to valvespring life and one of the most overlooked is installed height. Proper IH will help control harmonics and lead to longer life. I could not find the vid I wanted but this one still shows the harmonics at play with an improper spring setup...http://www.youtube.com/watch?v=_REQ1...eature=related

joe77

what about with eps lobes, i daily drive my car in the summer and put on about 12,000 miles last year, dont want to be changing springs every 2 years.

slt200mph

iTrader: (42)

I ran the Texas Speed Torquer cam for 2 1/2 years and 48,000 miles using the PRC dual springs...never changed springs...when I swaped to a different cam and heads after 48,000 miles I checked the springs and they were still within specs...people who change springs out at 10K, 15K, & 20K miles are throwing their money away. If you have a concern about the life of a spring pull the valve covers and check the spring pressure of the spring if it checks out good keep running it.