Gear Drive Timing Assembly

Jeff Chambers · 10-23-2004, 07:37 AM

Timing belts won't stretch or break at the rate that the same will happen with a chain. Nearly all high performance motorsports utilize the belt rather than a chain or gear setup. Talk with Comp Cams, Danny Bee, Australian Musclecar Part, Jesel, any of the makers of belt drives and they'll tell you that the rate of failure for belts is nearly zero. The timing is dead nuts on and with the belt drive you can adjust your cam setting (advanced/retarded) in less than five minutes. This is a huge benefit when you're dynoing the motor/car.

LX5liter · 10-23-2004, 09:25 AM

I agree with Jeff on these points, thats why I found it odd that Procharger went with a chain drive in there race blowers.

Jeff Chambers · 10-23-2004, 09:42 AM

Blowers are a bit of a different situation. A blower takes a tremendous amount of HP to drive, especially the all-out race versions turning high RPMs and mondo amounts of boost. The chain drive was their attempt to avoid belt slippage/breakage. A camshaft takes significantly less HP to turn, even with hugh solid lifter spring pressures.

10-23-2004, 07:37 AM	#1
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: Gear Drive Timing Assembly Timing belts won't stretch or break at the rate that the same will happen with a chain. Nearly all high performance motorsports utilize the belt rather than a chain or gear setup. Talk with Comp Cams, Danny Bee, Australian Musclecar Part, Jesel, any of the makers of belt drives and they'll tell you that the rate of failure for belts is nearly zero. The timing is dead nuts on and with the belt drive you can adjust your cam setting (advanced/retarded) in less than five minutes. This is a huge benefit when you're dynoing the motor/car. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

10-23-2004, 09:25 AM	#2
LX5liter dude5l Join Date: May 2001 Location: Grande Prairie, Alberta, Canada Posts: 603	Re: Gear Drive Timing Assembly I agree with Jeff on these points, thats why I found it odd that Procharger went with a chain drive in there race blowers. __________________ Good luck! Brad R. 1992 L.X. 5.0 coupe MODS: A few little bolt ons New Best time ...11.60 @ 128 mph @ 2000+ ft altitude. Rice Haters Club member #39 Users rides #2542

10-23-2004, 09:42 AM	#3
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: Gear Drive Timing Assembly Blowers are a bit of a different situation. A blower takes a tremendous amount of HP to drive, especially the all-out race versions turning high RPMs and mondo amounts of boost. The chain drive was their attempt to avoid belt slippage/breakage. A camshaft takes significantly less HP to turn, even with hugh solid lifter spring pressures. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

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