correct springs for a 224/224 billet hyd roller

[captainron]

Anyone know the correct springs to use for a 224/224 billet hydraulic roller. I'll be using GN1s, and I think the spring perches are for a 1.25" diameter spring. Is 135 lbs the correct spring pressure range for this cam? This won't be an ultra-high rev motor.


Ron

 

[Russ Merritt]

Comp 941s or K-motion 750s will work. Why so big if you aint gonna rev it?

 

[captainron]

Going in a Stage 2 (278 ci).

 

[1320n10]

Why so small if is going in a 278???

 

[captainron]

Gonna be a street car and I want decent street manners with good idle quality. Also want to keep decent vacuum without going to an external vacuum pump setup (for when I eventually get rid of the powermaster and go to vacuum brakes). I've done a lot of research on this. Some say stay real small like a 218/212 and let a big turbo do the work. Others say I will run out of breath at the top of the 1/4 so go real big like a 240+ cam and it's not a problem. I figure a 224/224 hyd roller is a good balance for a street car. Any other suggestions cause I've inquired into this before and it's hard to get good cam combo info. The fast guys usually like to keep that info closely guarded.......

R

 

[norbs]

K-750 's work great. I would go with a cam with a 114 centerline instead.