tenxal , i did run that little red Moroso hub on my 305cid 3.000" stroke C/ED engine with good successtenxal wrote: ↑Sun Sep 27, 2020 7:20 amSeveral months ago, I was given one of the old Moroso red hubs to try on the dyno for my 327 Stocker engine. Two pals who use them on their 265 and 283 Super Stock engines see 3-4 hp increases every time they A-B-A test them on the same dyno. Main and rod bearings are generally good for 2-3 seasons and rpms are north of 8,500. I just couldn't make myself try it, though.maxracesoftware wrote: ↑Fri Sep 25, 2020 5:35 pmlong ago, when NHRA first came out with Damper specs + requirements, Solid Aluminum Hub/Dampers became popular mostly because they were cheap alternative to beat new Rules, can't really call it a Damper : i ran a very small diameter red anodized Moroso Solid Aluminum Hub/Damper on my 3.250" Stroke C/ED 316cid Engine, trick John Lingenfelter C/ED steel pan ,5.67 rear gears , crossed 10000+ RPM every pass
still have the Pan + the Solid Aluminum Hub ... and a much larger heavier ATI Balancer was worth more HP on this engine in Dyno tests
Craig's Record setting A/ND and B/ND engines use just a solid Hub
reason : no way to run a real Damper because of all the front-driven drives Magneto,etc
Craig wants to run a ATI Damper , but can't fit it in
I occasionally crew on a pal's Comp car, so I know who "Craig" is. Hard racer!
i hit my counterweights with hammer after running that engine on Dyno + Dragstrip runs for about 1 year worth
and that crank still rings very good .
but try those same Hub -vs- real Damper test on larger Stroke engines like just a BBC 632cid
see how much more HP a real Damper will give you
plus it won't crack you Crankshaft
the larger the Stroke , the more critical the Damper is !