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Weight doesn't have much of an effect on top speed, only on acceleration. Wind resistance is the main detriment to a 200mph Suburban.
Hennessey has been modding Escalades and Yukon Denalis, and his HPE650 kit says the top speed is 171 with 650hp and 660 torque, so that's getting closer. They have an HPE800 kit with 800hp but there are no numbers on it that I could find, but probably 180-185 mph.
There is an equation out there that makes you consider not how fast your car goes but rather how well your car goes fast! Your suburban isn't going to feel real good past 120 mph.
I have hit 150+ in a few cars but as I get older my thrill to go fast is waning.
Weight doesn't have much of an effect on top speed, only on acceleration. Wind resistance is the main detriment to a 200mph Suburban.
Hennessey has been modding Escalades and Yukon Denalis, and his HPE650 kit says the top speed is 171 with 650hp and 660 torque, so that's getting closer. They have an HPE800 kit with 800hp but there are no numbers on it that I could find, but probably 180-185 mph.
- Remove suburban body.
- Remove everything else.
- Drive Ford GT into garage
- Build to 1500+HP
- Go to Texas Mile.
- Relax and have a cold beer with your 200MPH certificate
more like he would need 2000hp, which means the 454 with at least twin turbos, and most likely running on nitromethane for fuel, and a good mechanical injection system, enderle and jackson both make good ones.
and beyond the aerodynamic issues, there i going to be the issue of weight as well. and then he is going to have to deal with traction, just because one has four wheel drive doesnt mean you have enough traction to handle the needed power.
and there are still other issues to deal with.
Quote:
Originally Posted by rbohm
you have never been to the bonneville salt flats have you?
You don't really know anything about cars, aerodynamics, or engines, or anything automotive, do you?
you have never been to the bonneville salt flats have you?
Actually, at Bonneville, weight helps. The 300 mph twin turbo Firebird run by Kugel Performance weighed more than a stock one, as the weight made it more stable. Weight is an issue for acceleration and at Bonneville, where you have a couple miles to come up to speed, it's not a problem. Only aerodynamics.
Heath Diesel ran 160 with an essentially stock 6.2 turbodiesel in a stock bodied Silverado of that era.
OP could try parking it on the NEC tracks somewhere around Kingston, RI where the Accela trains are able to run up to 160 MPH or so. That would get him within 40 MPH of his goal, at least for a few seconds
You don't really know anything about cars, aerodynamics, or engines, or anything automotive, do you?
naw, just have a degree in automotive technology, as well as spent 5 years as a crew chief on a B/FA in the late 70s/early 80s, where i tuned a constant flow jackson injector, as well as occasionally setting up the car to also run A/EA.
Quote:
Originally Posted by Tiffer E38
Actually, at Bonneville, weight helps. The 300 mph twin turbo Firebird run by Kugel Performance weighed more than a stock one, as the weight made it more stable. Weight is an issue for acceleration and at Bonneville, where you have a couple miles to come up to speed, it's not a problem. Only aerodynamics.
Heath Diesel ran 160 with an essentially stock 6.2 turbodiesel in a stock bodied Silverado of that era.
correct. added weight helps with traction on the salt, especially at speeds above 150mph.
Quote:
Originally Posted by spankys bbq
Suburban to 200MPH in a few simple steps:
- Remove suburban body.
- Remove everything else.
- Drive Ford GT into garage
- Build to 1500+HP
- Go to Texas Mile.
- Relax and have a cold beer with your 200MPH certificate
or if he wants to keep it all chevy, drive a gen 6 Z06 corvette into the garage.
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Your suburban isn't going to feel real good past 120 mph. 
