is this true?! Did GM underrate it like they had done in the past with the Buick Grand National?

all opinions are welcome!

 

Under rating on torque, question is where is this person getting thier numbers and it says nothing about it being at the crank or wheels

 

Well, many of GM's engines had the power "watered down" for a number of reasons. Including fuel economy. But that was a common thing to do during that era of vehicle production. People cared more about fuel economy than performance.

 

GM is also known for underrating HP on cars if ANYTHING threatens to have more HP then the current year Vette. They want the Vette to ALWAYS be at the top of the performance hierarchy.

Such as the 1989 Turbo T/A according to GM was something like 240HP, the Vette at the time was like 255HP. A friend of mine that owns a '89 Turbo T/A says he read articles about the car going straight from a showroom to dyno, had numbers beyond 300HP at the wheels. What's the truth of the matter, could never tell you for sure....

 

Good point. I suppose when the Vette is priced at a hundred million thousand dollars, you don't want another one of your own cars half the price to advertise more performance.

 

Gm underated the LS1 camaros so they didnt seem better than the vettes but both the camaro & vette dyno the same stock rwhp

 

Sad part is, there is a lot more then just HP to performance. Such as, I don't expect a Camaro to handle as good as a Vette, I don't expect the Camaro to weigh less then a Vette....

But the ONE thing everyone uses as a default bench mark is, "What's the HP?"

 

Ohh camaros handle like crap compared to a vette thats for sure, but i just think its funny cuz like the SLP SS Camaro was rated at 345 & the Z28 at 315 but they had the same wheel hp

 

Someone should go dyno their stock L67 and see what they get

 

One part of me would like to. Providing there was a dyno somewhere in this crazy town. But another part of me knows that I would be in for a huge disappointment. So it's probably just as well I don't get it dyno'ed.

I think someone a couple years ago posted that the L67 Montes are actually closer to 200 hp at the wheels, stock. Don't think that was the result of a dyno though.