balthazar

Big V-8 motors can't rev...

18 posts in this topic

balthazar    1,746

According to the comments below, this 455 CI-based big block Buick goes from 2500 RPM to 7000 in 2nd on the rollers.

Hope you're sitting down around the 18-sec mark...

Now... picture 80% of that brawn in a car this angry:

59B.jpg

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:wub:

and on the subject of revving, i know someone who is working an a DZ302 out of a 69 z28... i know they rev high, but he claims with this motor he'll launch off of 9000RPM and shift at 10K,,,, i thought it sounded sketchy but this guy is known to do some crazy $h!.... when he's done i know hearng it launch will sound like the world coming to an end! :)

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XP715    6

Very cool. Sounds like there's a lot of whistling in the video; is that a supercharger I hear before and after he romps on it?

Balt: It'll be awesome when your car is finally done; I've always wanted to do something like that. I've thought about building up a Cadillac 500 out of a '70 Eldorado (the only one that never really got choked down by government regulatons) and dropping it in a nice '55-'60 Coupe DeVille or Series 62 coupe. Keep at it and stop being so damn stingy with the photographs! :thumbsup::thumbsup::thumbsup:

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balthazar    1,746

>>"...is that a supercharger I hear before and after he romps on it?"<<

I believe that's the rollers bringing it up to 2500 RPM (the standard starting point for chassis dyno runs). That, and there's precious few SC BBBs out there, I only know of one... and I'm pretty sure this car would be quicker if SC'ed. Buick V-8 guys are near unanimously a N/A bunch; they don't "need" power adders. :wink:

A guy I used to know built a "junkyard" Pontiac 455 he installed in a '71 Firebird for drag racing. That car did high 9s in the quarter (N/A, no NOSSSSS) and turned over 8500 RPM doing it. Still, multitudes will tell you IBC motors cannot rev worth their block's scrap value, because it's just not possible. :wink:

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Had a friend who had a 428 Pontiac that would rev to 10,500+RPM. He build an exhaust system that used backpressure to keep the valvetrain from floating. He had it in an 84 Cutlass that would run in the low 9's.

Big V-8's will do some serious stuff.

And Oldsmoboi, your wrong, a VTEC will blow up if you do that to it...and your right...it is amzing how wrong the "ricers" are...

Chris

Edited by 66Stang

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