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-   -   GM Releases 2013 bogus HP ratings at PRI show (https://classracer.com/classforum/showthread.php?t=44600)

Andrew Hill 12-08-2012 02:15 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Quote:
Originally Posted by Chad Rhodes (Post 359856)
Actually the 69 LT-1 350 corvette is rated at 370 in stock, WAY over factored, but just thought I'd point it out
Well they would factor that down to 330 like the 70 because its the exact same motor. They just put it in a corvette a year earlier than a camaro.

Chad Rhodes 12-08-2012 02:20 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Quote:
Originally Posted by Andrew Hill (Post 359875)
Well they would factor that down to 330 like the 70 because its the exact same motor. They just put it in a corvette a year earlier than a camaro.
actually i believe it has a holley instead of a q-jet

Andrew Hill 12-08-2012 02:32 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Quote:
Originally Posted by Chad Rhodes (Post 359876)
actually i believe it has a holley instead of a q-jet
So does the 70 LT-1

Chad Rhodes 12-08-2012 02:33 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Quote:
Originally Posted by Andrew Hill (Post 359879)
So does the 70 LT-1
so 71 was the change, my bad. it does show a 485/485 camshaft in the 69 though. Different carb numbers but the specs are the same for them.

Andrew Hill 12-08-2012 03:53 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Quote:
Originally Posted by Chad Rhodes (Post 359880)
so 71 was the change, my bad. it does show a 485/485 camshaft in the 69 though. Different carb numbers but the specs are the same for them.
Yep, the only difference in the 69 vs 70 is the 485/485 vs 458/485 cam. The 71 moves to a different head and a flat top piston and is rated at 315 in both the Camaro and Corvette.

Greg Hill 12-08-2012 03:58 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Quote:
Originally Posted by Chad Rhodes (Post 359880)
so 71 was the change, my bad. it does show a 485/485 camshaft in the 69 though. Different carb numbers but the specs are the same for them.
71 and 72 also have a Holley, just less compression and different heads.

treessavoy 12-08-2012 04:01 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Gentlemen,

Using my fading memory and wikipedia I find that the LT1 was only manufactured in 1970-72, no mention of production in 1969. The closest HP 350 I could find was the L79 350/350 anything with higher HP was a big block.

I've been wrong before, well not really, OK only three times and I'm finished paying alimony, if you could direct me to a site that gives the spec's for the 1969 LT1 I would appreciate it.

JimR

Greg Hill 12-08-2012 04:12 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Quote:
Originally Posted by R J Sledge (Post 359837)
Greg answer a question for me please. What did you do to get 35hp taken off a combination? Or was NHRA just feeling benevolent?? I'm serious and was just wondering. Maybe I could get you and your son to do some lobbying with NHRA for me.

Merry Christmas

RJ
Don't give me any crap about our motors. Who's got the school bus motor that now has a cj cam, aluminum intake, and a 780 Holley carburetor. I remember those 390's in the 60's and they wouldn't out run a 327 Camaro. Plus you're building one of the bogus crate motors so you'll be a half a second in front of me and Andrew.

boostedf22c 12-08-2012 04:29 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Haha, can't tell it's the offseason already....

I got a strange idea that I think might end up working over time in getting these new cars where they should be. Keep the pedal to the floor? :D

Ed Carpenter 12-08-2012 04:50 PM
Re: GM Releases 2013 bogus HP ratings at PRI show
 
Most guys redo their stuff on a yearly basis , bigger cam's, more cc's, bigger valves, higher compression , bigger carbs is easy stuff to do .

Bo most of us don't have a wheel barrel full of cash to spend on our race cars. In my case being a State Trooper doesn't allow me to upgrade my engine every year as you suggest.


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