Cam Lope vs timing chain

[jrb1027]

I wonder if I could run my 1.8 RR on the xp cam?

 

[goldgp]

I believe the valve guides have to be milled to do it.not shure tho.

 

[CrazyGuy03]

You should have 130s with an XP... I ran 105s forever and thought they worked just fine.
Until I saw the dyno sheet when I finally put the 140s in.

Can you elaborate ? Let's say I have
stock heads
105 springs
s1x cam

where is the loss with the 105s and the gain with the 140s ?
Numbers sell and I'm always looking to upgrade

 

[WolvesSoulZ]

I have my idle set @ 700 in Park and Neutral and @ 800 in Drive. XP Cam on those blue #90. Stock chain and damper, new though.

 

[dsmuts]

But how long will it last...

Been 25k miles now

 

[jrb1027]

Looks like im going to buy 130# springs, and i wont be adding the 1.8 rockers since i just sold them

 

[hensleya1]

Idle at 950 here, with an S1x, 105#, and a new single roller.

At that idle and a stock stall torque converter, the car doesn't creep forward when in drive... it does upwards of 20 MPH. lol

 

[dsmuts]

Auston that's to high