Lightweight flywheel options and selection criteria.

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3700 lbs and not much hp/tq = 30 lb flywheel

I have used 30lb steel, lightweght steel and aluminum with good results in the correct applications. AL flywheel will make you miserable on the street.
 

Because he can't do it. Other than that, there is no reason to run a steel flywheel with a SLR of 10:1. If you can tune you can even have a taller SLR and use an aluminum FW.

99% of the issue is tuning. I've been running aluminum flywheels on everything I can since the mid 1980's. I would never go back.
 
Because he can't do it. Other than that, there is no reason to run a steel flywheel with a SLR of 10:1. If you can tune you can even have a taller SLR and use an aluminum FW.

99% of the issue is tuning. I've been running aluminum flywheels on everything I can since the mid 1980's. I would never go back.

Expand on this with examples please. I have had no luck running light fw's on the street with 600+ hp/tq. It has more to do with how the clutch reacts to the engine speed down low.
 
Expand on this with examples please. I have had no luck running light fw's on the street with 600+ hp/tq. It has more to do with how the clutch reacts to the engine speed down low.
Out of curiosity, what clutch do you run? What transmision and rear gear ratio?
 
Com'on Newbomb,
please don't attack my street tuning skills.
We all have had the same experience; and you're flogging a deadhorse.
Possibly, you're just willing to put up with stuff that we are not. Or your driving-style is different. or, or, or. Plus, did I not qualify my skill beforhand? Lemmee go check.
Yes I did.
So now, I'll just throw it back at you.
You are entitled to offer your opinion. You don't need to insult those that do not hold to the same opinion; and it's really bad form to basically call me an incompetent. You've done that a couple if times already, and not just to me; and until now, I've let it slide. I have no desire to get into a pissing contest with you. If you wish to to continue in this manner, it will only reflect poorly on your character.
We have heard your opinion. We can all read, so yeah, we get it.
 
Out of curiosity, what clutch do you run? What transmision and rear gear ratio?

I have 3 stick cars. They are all built diffrent f
Out of curiosity, what clutch do you run? What transmision and rear gear ratio?

My GTS, up until recently , had a RAM Powergrip HD with some pp shim and a clutch tamer setup. RAM billet 30lb flywhee. 3.23 gear, 235-60-14 bias ply DOT tire. The pictures show the sisc after 3 seasons and 100+ passes most of them on a small nitrous kit. The friction material properties of the disc and pp base psi dictate how harsh the clutch grabs. High coef of friction at low RPM bogs the engine down and low engine speeds cause the disc to chatter. Chatter that shakes the dash. This type of situ will shake the 8 track out of the deck.

In my case a heavg steel fw makes sense. It's not a tuning issue it's a keeping the engine from bogging down while still maintainjng a decent idle speed AFR issue.

Big carburetors need some idle speed to be responsive with a big solid roller cam in my experience.

I have a lighter car (3000 lb) that is not street driven (1100hp w/ a Lenco) that will use an aluminum RAM flywheel with a sintered iron disc. Totally different deal.

My other beater (3600 lb) has the same clutch with a steel flywheel for the same reason as the GTS.

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20240930_092519.jpg
 
Com'on Newbomb,
please don't attack my street tuning skills.
We all have had the same experience; and you're flogging a deadhorse.
Possibly, you're just willing to put up with stuff that we are not. Or your driving-style is different. or, or, or. Plus, did I not qualify my skill beforhand? Lemmee go check.
Yes I did.
So now, I'll just throw it back at you.
You are entitled to offer your opinion. You don't need to insult those that do not hold to the same opinion; and it's really bad form to basically call me an incompetent. You've done that a couple if times already, and not just to me; and until now, I've let it slide. I have no desire to get into a pissing contest with you. If you wish to to continue in this manner, it will only reflect poorly on your character.
We have heard your opinion. We can all read, so yeah, we get it.
Maybe you can post a current picture of your car? I know I'm not alone in wanting to see it.
 
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