What RPM does your 212/212 roller pull to?

[325DR]

Looks like I am loosing power over 5800rpm. I am thinking valve springs but want to see how high you guys are spinning your 212's first.

ps what valve springs are good for this cam? I belive I have the Comp Cams springs that were reccomended by them for this cam. Should I got with a K-Motion spring with more seat pressure? What is ideal for up to 6200rpm with this cam?

 

[STP]

Not sure of the part number but I like the Comp Cams Pakaloys as they have lasted longer for me. You need at least 135lbs on the seat closed for a hydraulic roller..... HTH Scott

PS The 212 should have no problem spinning to 6200rpm. What lifters are you running? Comp 853's?

 

[325DR]

The cam/valve spring/lifter combo is what Comp Cams recommended. I will confirm the part number on the lifters and post back.

 

[NCTURBOS]

Comp part# 941 is the pacaloy spring. We have been using them for quite some time now. Currently we are using the bee-hive springs on two setups These are my firsts with the bee-hive's, but I know others are using them with good success.

Keith

 

[Otto J]

i run behives on my 226 hydraulic roller, and i pull the motor to 7000, on old speed pro lifters.
I am going to order the new comp ones though as one seems to be a little noisy
If you use the beehives go with the titanium retainers,It lightens up the valve train nicely

 

[Russ Merritt]

26918 beehives for a ductile roller. 145-155 on the seat, 330ish open.

 

[NCTURBOS]

Originally posted by Russ Merritt
26918 beehives for a ductile roller. 145-155 on the seat, 330ish open.

Russ,

I posted this on the roller valve spring thread below also. How are you getting installed height in the low 1.7's with the .050 locks?? I'm getting approx. 1.810 with the standard locks, Ti. retainers, 26918 springs, and shimming .030 from there for a 1.780 height putting the springs at approx. 136 on the seat. Are the standard retainers that much thicker compared to the Ti. retainers??


K.

 

[Russ Merritt]

794 is a 10 degree retainer. your not using the stock retainers right? The correct retainer # is 614

 

[NCTURBOS]

Originally posted by Russ Merritt
794 is a 10 degree retainer. your not using the stock retainers right? The correct retainer # is 614

794 is the 10* titanium retainer. 614 is the .050 10* lock and 613 is the standard 10* lock.

With the 794 retainer and 613 lock I'm getting 1.810 and shimming .030 for 1.780 height @ 136 pressure. With the 614 (.050) lock you'd have 1.860 installed before shimming. How are you guys coming up with installed heights in the low 1.7's while using the 614 (.050) locks?? Or are the steel retainers that much thicker??


K.

 

[Russ Merritt]

That's a good question then. We have had to use +.050 locks on everything, iron and aluminum heads, steel or titanium retainers, stock or GN1 valves.

 

[NCTURBOS]

Originally posted by Russ Merritt
That's a good question then. We have had to use +.050 locks on everything, iron and aluminum heads, steel or titanium retainers, stock or GN1 valves.

There might be an answer there. We've been using Ferrea valves in the heads. I'll have to measure them. They may be .100 longer or something!!??

I know you can order valves longer to get taller installed heights, but I never checked the length of the ones we've been using. Huhhh...food for thought!!


K.

 

[NCTURBOS]

325DR,

Sorry for Hijacking your thread!!

After checking the Ferrea catalog I found that the overall length of the valves are 4.735" with the tip length of the exhaust being .254 and the intake .271.

Anybody know the length of the stockers and Manley's??


K.

 

[NCTURBOS]

From the Manley catalog:

Exhaust= 4.725 overall length .270 tip length
Intake= 4.730 overall length .270 tip length

There may be some of it there, but that still doesn't equal out!!??


K.

 

[Super6]

NC turbos

Call Bob at precision porting 727-365-1451 He was having the same trouble with the behives on my heads..the installed height was coming up at 1.8....i talked to him on the phone about it but i can't remember what he told he was going to do to fix it(i guess shim them)....i don't know what brand valves he is using in my heads ,just know they are bigger.....i bought all the springs,retainers, and locks from Russ Merrit...Maybe Bob can shed some light on this problem......................................Bob

 

[Russ Merritt]

If you have too much installed height, that's a good problem to have......... Easy solution. I haven't had that "good luck" yet...

 

[lazaris]

Originally posted by KLHAMMETT
i run behives on my 226 hydraulic roller, and i pull the motor to 7000, on old speed pro lifters.
I am going to order the new comp ones though as one seems to be a little noisy
If you use the beehives go with the titanium retainers,It lightens up the valve train nicely

Otto,

is that with the 26120's? Whats your installed height and lift on the cam? I have the new comp magnums as well.