Lightweight flywheel options and selection criteria.
I have 3 stick cars. They are all built diffrent f
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.
I have 3 stick cars. They are all built diffrent f
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.