Now i was just wondering, our engine are no as capable of getting as high in the RPMs as my father's Ford 2.8 DOHC V6 Contour. I was thinging got two reason, one b/c i know smaller usally engine rev higher and the fact that there is no or smaller pushrods.
-Tom

 

i think you've over simplified it just a bit, and didn't provide very much information.

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ICON Motorsports

1st & 3rd
MM Black Diamond 538 F&AM

 

I was thinging, You shlod fave anuthr veer.

 

Whoa, check your spelling!

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--Steve S--
1984 Trans Am 305 LG4, 5 speed Daily Driver, Flowmaster 80 Series
Holley 600 cfm & vacuum advance Soon: Edlebrock Intake & TES

 

well generally, Dual overhead cam setups have no pushrods and are able to reach a higher rev capability. There are more factors to redlines than just that. Cylinder heads make a difference, freely flowing heads will allow the car to rev higher and make more horsepower but not torque. Intake manifold also works in unison with this theory. As for a standard overhead valve setup, the hydralic cams really restrict a higher redline because their lifters have the pumping action that screws up top end horsepower. The mechanical cam setup will always rev higher than the hydralic because of the no pumping involved. Exhaust makes a little bit of a difference and ignition can make a difference also. Probably the biggest thing for higher revving capabilities is a shorter stroke crank. Large bore short stroke engines always rev a little bit higher than the long stroke engines. When you start doing these things to an engine however, you will lose your torque and gain lots of horsepower. All you have to do is look at the cars being manufactured today. Exotics such as Ferrari have short stroke V8s and V12s that make a whole bunch of horsepower but only produce little amounts of torque will rev all the way to 8000 rpm or more.

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http://members.v3space.com/thirdgen/index.htm

 

i was just talking about in in general. I wish they chevy made an afforadablt OHC V8.

 

A WHAT?!

 

My thoughts exactly!