HOW to make a gbody handle

[kad5118]

Kad5118,
1) How much are you willing to spend? 2) How much time will you allot for your build? 3) Be honest with yourself here. How will you be using your car (daily driver, weekend racer, etc.). ... The G-body chassis was designed over 40 years ago. The best you can achieve with factory bolt ons will be about (I say about because tires and shocks have improve ALOT today) what was had in 1987! That's along way from what you said you wanted: "at least like the newer model cars". ... Answer the questions above and people may be able to point you in the right direction.

Doug

Well i am on a budget the most i can shell out for funds right now is 800 to 1000 dollars on a good day for now.I am not really in a huge rush so i do have time on my side right now as we speak.I currently have more than one car right now but so it will be a semi daily driver.my cars at a minimum will have 500hp at the crank.my 80 lemans has a very stout efi 406 sbc in it right now that's close the 500hp and my monte carlo has a 4.8 in it now but it will have a turbo.I currently have two holset hc1 turbos for it i just have to find someone in my area that good with welding and i have to attached to the motor.as of yet neither one of them been to a dyno.My goal is for the cars to be able to handle the power that it has without fish tailing when it get to a certain speed.From what i understand the g bodies get very light in the rear when they reach certain speeds.

 

[pontiacgp]

the design of the roof and back window creates a low pressure area behind the back window which takes weight off the back end. That's the reason for the GP and SS areo coupes

 

[GuysMonteSS]

[/quote]

From what i understand the g bodies get very light in the rear when they reach certain speeds.[/quote]

Well,I don't know about that statement,LOL.
I've had my Monte going 160 + MPH several times,and I've never noticed it getting very light in the rear.
Guy

 

[oldtinsmith]

Doug

From what i understand the g bodies get very light in the rear when they reach certain speeds.[/quote]

Well,I don't know about that statement,LOL.
I've had my Monte going 160 + MPH several times,and I've never noticed it getting very light in the rear.
Guy[/quote]

Guy, I didn't make that statement or agree with it!

Doug

 

[GuysMonteSS]

Sorry,I didn't mean to imply that you did.I will edit my post...
Guy

 

[oldtinsmith]

It's not really a problem to me!

Doug

 

[pontiacgp]

In the Kimmel series they run a plate on the roof to slow the cars down on the larger tracks cause the G body is unstable at higher speeds

Frank Kimmel's Street Stockers sport a trademark wicker bill across the roof of the car. The bill is designed to slow the cars down when they race on the bigger NASCAR tracks like Rockingham, Kentucky, and Bristol.

 

[oldtinsmith]

From Stock Car Racing, August 29, 2007 :


Getting back to that strange-looking wicker bill, it took considerable testing to determine the device's optimum size. There were varied opinions, some positive and some negative. One driver suggested doing away with the unit and installing a restrictor plate in the engine.

"We wanted to keep the lap times no faster than about 41 seconds," says Kimmel. The wicker bill was placed on the roof of the car so that the driver's rear vision would not be obstructed.

Read more: http://www.stockcarracing.com/eventcove ... z3FJfoCz3x


Doug

 

[pontiacgp]

They didn't want to have a rear spoiler which would help add some weight to the rear in the corners. The stability in these cars was an issue in Nascar and that is why the areo coup was built. The sheet metal in thses cars are so low in the rear there is very little downforce. In the sportsman series we ran this year the Dodge Intrepid body was a well liked body cause the rear of the car was tall and that helped in the cornering to keep pressure on the tires

 

[oldtinsmith]

Stock Car Racing, August 29, 2007 :

Getting back to that strange-looking wicker bill, it took considerable testing to determine the device's optimum size. There were varied opinions, some positive and some negative. One driver suggested doing away with the unit and installing a restrictor plate in the engine.

"We wanted to keep the lap times no faster than about 41 seconds," says Kimmel. The wicker bill was placed on the roof of the car so that the driver's rear vision would not be obstructed.

Read more: http://www.stockcarracing.com/eventcove ... z3FJjo7mlG

No mention of the cars being "light" in the rear at speed. Just asking where I can read about that!
Sorry, I messed up the first post!
Doug