Why I Run Solid Lifters

patrickt · #1 (**permalink**) 12-22-2009, 06:47 AM

Quote:

Originally Posted by Excaliber

Actually.... I would like to say...

What Ernie was trying to say is that the mere fact that you have rollers on your lifters does not make up for the fact that you are losing a third of your usable RPMs because you went hydro.

RodKnock · #2 (**permalink**) 12-22-2009, 12:25 PM

Quote:

Originally Posted by patrickt

What Ernie was trying to say is that the mere fact that you have rollers on your lifters does not make up for the fact that you are losing a third of your usable RPMs because you went hydro.

Can you explain this one to me? Does this mean I'm losing my power between 6,000-9,000 RPM. If so, I don't spend a lot of time in that RPM range.

Ernie, you should get a set of Webers, I hear they bring even more "oneness" with your engine.

Roller lifters...no ZDDP issues.

I may install a solid roller in my SOHC build.

patrickt · #3 (**permalink**) 12-22-2009, 12:41 PM

Quote:

Originally Posted by RodKnock

Can you explain this one to me? Does this mean I'm losing my power between 6,000-9,000 RPM. If so, I don't spend a lot of time in that RPM range.

It's that extra 1500 RPM (or more) that you get at the top end, and "usable RPMs" begin around 3000. Solids give you roughly a third more usable RPMs.

ERA Chas · #4 (**permalink**) 12-22-2009, 02:15 PM

Quote:

Originally Posted by patrickt

It's that extra 1500 RPM (or more) that you get at the top end, and "usable RPMs" begin around 3000. Solids give you roughly a third more usable RPMs.

You miss Rod's point that since he makes 600 LbFt +/- at say 5800, (as most of the 482's do) what further use does he have for "usable" RPM above that?

Further-to what end? He isn't running laps or looking for tenths. How much time do you spend north of 5700 that solids were a requisite for you?

patrickt · #5 (**permalink**) 12-22-2009, 02:36 PM

Quote:

Originally Posted by ERA Chas

You miss Rod's point that since he makes 600 LbFt +/- at say 5800, (as most of the 482's do) what further use does he have for "usable" RPM above that?

Further-to what end? He isn't running laps or looking for tenths. How much time do you spend north of 5700 that solids were a requisite for you?

No, I believe Rod is tracking his car, or plans to (he will correct me if I'm wrong on that). But my point is not limited solely to the power/time numbers, but rather to the enjoyment of the engine itself. When you have more rev potential, the engine is more fun to run -- you know that. This whole hobby is simply about having fun with our cars. If we were looking purely for the lowest speed times, we could have built something better for a lot less than we spent.

RodKnock · #6 (**permalink**) 12-22-2009, 06:23 PM

Quote:

Originally Posted by patrickt

No, I believe Rod is tracking his car, or plans to (he will correct me if I'm wrong on that). But my point is not limited solely to the power/time numbers, but rather to the enjoyment of the engine itself. When you have more rev potential, the engine is more fun to run -- you know that. This whole hobby is simply about having fun with our cars. If we were looking purely for the lowest speed times, we could have built something better for a lot less than we spent.

I haven't tracked the Cobra yet, but I'd like to in the future, and that would include SAAC 35. Chas, is right. Power and RPM numbers are about right on. How much MORE enjoyment is there with my car at 6,000-7,500 RPM? I ran a solid lifter cam in an LS6 454 that I had installed in my '66 Vette. If you're making power in that 6,000-7,500 RPM range, the cam has to fairly unstreetable.

patrickt · #7 (**permalink**) 12-22-2009, 06:26 PM

Probably not much. Did you ever check your rev limiter?



FE Forums sponsored by Keith Craft Inc.