I'm looking at flywheels for my street driven SB 350 pushing about 375 HP. Anyone ever use the Summit brand? Seemed reasonably priced and had good reviews? I know it's probably Chinese but for my application it might work well...
Id strongly suggest you read through these links as it may well save you a great deal of time and money
but I darn sure would find a 15-20 lb aluminum, or 30-35 lb steel flywheel with a SFI rating, because they are far less likely to come apart under stress.
AND BUY A SFI RATED BLOW-PROOF BELL HOUSING
but keep in mind a flywheel stores rotational inertia and the heavier the mass the smoother the engine tends to run and launch, as the stored inertia helps get the car moving, and Id point out that a lighter than about 25 lb flywheel in a heavy car (3300 lbs plus) is a P.I.T.A. to drive at times unless you constantly drive like you have a trunk full of moonshine and the damn yankee revenuers are 400 yards behind you!
read ALL the links
since youve already replaced the clutch disc and pressure plate, I'd point out that,
many times clutch chatter is the result of an un-even flywheel surface, any decent machine shop can surface grind the existing friction surface a few thousands to correct that issue.
clutch chatter is the result of un-evenly applied clamping surfaces, usually a high spot(S) on the clutch pressure plate its housing or the flywheel surface, but grease and or oil on the clutch disk, or loose disc pads could also be too blame , but heat warping or a broken spring or mis-aligned spring will also cause this symptom.
the flywheel should be torqued to the crank flange, an impact gun should never be used as its possible to warp the mount surfaces is tightened un-evenly
if the clutch vibration does not go away once the clutch locks up,
you've more than likely, got a drive line component alignment or rotation assembly or drive line balance issue.
you'll want to verify the flywheels mounted so its not wobbling, it may be warped,
or the crank flange its mounted too has been bent or theres debris between the flywheel and crank flange,
you,ll want too use a dial indicator mounted on the block and rotate the flywheel to find out,
if the flywheel friction surface or outer diameter
,changes its distance from the block as it rotates
read ALL the links
http://www.freeasestudyguides.com/manual-transmission-clutch-chatter.html
http://www.brakeandfrontend.com/causes-clutch-failure-diagnosing-chatter/
http://www.onallcylinders.com/2012/10/02/clutch-tips-troubleshooting-faqs-from-the-experts/
https://www.schaeffler.com/remoteme...ler_2/symposia_1/downloads_11/2_chatter_1.pdf
https://www.g-w.com/pdf/sampchap/9781605252131_ch07.pdf
http://garage.grumpysperformance.com/index.php?threads/a-brief-look-at-clutches.447/#post-59459
http://garage.grumpysperformance.com/index.php?threads/huge-vibration-issue.12548/#post-63812
http://garage.grumpysperformance.co...rrectly-installing-bellhousings.584/#post-785
http://garage.grumpysperformance.co...rnal-balance-crank-question.13560/#post-70119
http://garage.grumpysperformance.co...tion-about-throw-out-bearing.6258/#post-19701
http://garage.grumpysperformance.co...ools-diagnosing-clutch-issues.3553/#post-9431
http://www.summitracing.com/parts/sum-700180/overview/
http://www.summitracing.com/parts/sum-700184/overview/
http://www.summitracing.com/parts/lak-15000/overview/
http://www.crossmembers.com/shop/fly-wheels-c-18.html
http://garage.grumpysperformance.com/index.php?threads/a-brief-look-at-clutches.447/
http://garage.grumpysperformance.com/index.php?threads/what-fly-wheel.6124/#post-35034
http://garage.grumpysperformance.co...gs-and-correctly-installing-bellhousings.584/
http://garage.grumpysperformance.com/index.php?threads/harmonic-balancer.3554/#post-26562
http://garage.grumpysperformance.com/index.php?threads/pilot-bushing-installation.2596/#post-6698
http://garage.grumpysperformance.com/index.php?threads/selecting-a-flywheel.1042/#post-1969
http://garage.grumpysperformance.com/index.php?threads/168-or-153-flywheels.3951/#post-58907
http://garage.grumpysperformance.com/index.php?threads/engine-balancing.3900/#post-57051
Id strongly suggest you read through these links as it may well save you a great deal of time and money
but I darn sure would find a 15-20 lb aluminum, or 30-35 lb steel flywheel with a SFI rating, because they are far less likely to come apart under stress.
AND BUY A SFI RATED BLOW-PROOF BELL HOUSING
but keep in mind a flywheel stores rotational inertia and the heavier the mass the smoother the engine tends to run and launch, as the stored inertia helps get the car moving, and Id point out that a lighter than about 25 lb flywheel in a heavy car (3300 lbs plus) is a P.I.T.A. to drive at times unless you constantly drive like you have a trunk full of moonshine and the damn yankee revenuers are 400 yards behind you!
read ALL the links
since youve already replaced the clutch disc and pressure plate, I'd point out that,
many times clutch chatter is the result of an un-even flywheel surface, any decent machine shop can surface grind the existing friction surface a few thousands to correct that issue.
clutch chatter is the result of un-evenly applied clamping surfaces, usually a high spot(S) on the clutch pressure plate its housing or the flywheel surface, but grease and or oil on the clutch disk, or loose disc pads could also be too blame , but heat warping or a broken spring or mis-aligned spring will also cause this symptom.
the flywheel should be torqued to the crank flange, an impact gun should never be used as its possible to warp the mount surfaces is tightened un-evenly
if the clutch vibration does not go away once the clutch locks up,
you've more than likely, got a drive line component alignment or rotation assembly or drive line balance issue.
you'll want to verify the flywheels mounted so its not wobbling, it may be warped,
or the crank flange its mounted too has been bent or theres debris between the flywheel and crank flange,
you,ll want too use a dial indicator mounted on the block and rotate the flywheel to find out,
if the flywheel friction surface or outer diameter
,changes its distance from the block as it rotates
read ALL the links
http://www.freeasestudyguides.com/manual-transmission-clutch-chatter.html
http://www.brakeandfrontend.com/causes-clutch-failure-diagnosing-chatter/
http://www.onallcylinders.com/2012/10/02/clutch-tips-troubleshooting-faqs-from-the-experts/
https://www.schaeffler.com/remoteme...ler_2/symposia_1/downloads_11/2_chatter_1.pdf
https://www.g-w.com/pdf/sampchap/9781605252131_ch07.pdf
http://garage.grumpysperformance.com/index.php?threads/a-brief-look-at-clutches.447/#post-59459
http://garage.grumpysperformance.com/index.php?threads/huge-vibration-issue.12548/#post-63812
http://garage.grumpysperformance.co...rrectly-installing-bellhousings.584/#post-785
http://garage.grumpysperformance.co...rnal-balance-crank-question.13560/#post-70119
http://garage.grumpysperformance.co...tion-about-throw-out-bearing.6258/#post-19701
http://garage.grumpysperformance.co...ools-diagnosing-clutch-issues.3553/#post-9431
http://www.summitracing.com/parts/sum-700180/overview/
http://www.summitracing.com/parts/sum-700184/overview/
http://www.summitracing.com/parts/lak-15000/overview/
http://www.crossmembers.com/shop/fly-wheels-c-18.html
http://garage.grumpysperformance.com/index.php?threads/a-brief-look-at-clutches.447/
http://garage.grumpysperformance.com/index.php?threads/what-fly-wheel.6124/#post-35034
http://garage.grumpysperformance.co...gs-and-correctly-installing-bellhousings.584/
http://garage.grumpysperformance.com/index.php?threads/harmonic-balancer.3554/#post-26562
http://garage.grumpysperformance.com/index.php?threads/pilot-bushing-installation.2596/#post-6698
http://garage.grumpysperformance.com/index.php?threads/selecting-a-flywheel.1042/#post-1969
http://garage.grumpysperformance.com/index.php?threads/168-or-153-flywheels.3951/#post-58907
http://garage.grumpysperformance.com/index.php?threads/engine-balancing.3900/#post-57051
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