power steering belt removel??
04-09-2009, 12:03 AM
#1
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power steering belt removel?? i was reading a old Camaro Performance of GM Hightech from around 2000 and they had a article about removing the power steering belt. they tested it on a LS1 transam and dropped 3 tenths in the 1/4.
does this sound possible??
does this sound possible??
04-09-2009, 06:20 AM
#2
No, because there is not that much drag, especially if it is not being used. You could find a "short belt" But in the end I would wager you gain more from removing the unit completely and putting a manual rack in there.
With GMHTP often, its just the difference in the driver, or even weather that can sway the diff. If they took a auto car, back to back to back runs, so it is heat soaked, and with identical 60 foots and drivers with similar weight and got 3 tenths just by leaving the P/S pump not turning, then I would beleive it.
With GMHTP often, its just the difference in the driver, or even weather that can sway the diff. If they took a auto car, back to back to back runs, so it is heat soaked, and with identical 60 foots and drivers with similar weight and got 3 tenths just by leaving the P/S pump not turning, then I would beleive it.
Last edited by BlackScreaminMachine; 04-09-2009 at 07:01 AM.
04-09-2009, 08:07 AM
#3
You will not see a .3 drop from removing the belt completely, nevermind just off the power steering pump.
Removing the pump might get you a touch, but I doubt even a tenth, there's very little load from the pump when the wheels are strait, it really only puts a load on the motor when you're turning the car.
Taking the pump out will clean the engine bay up some and is a good weight reduction mod, and is livable if you roll on skinny's all the time, but if you daily drive the car with a stock sized tire, I wouldn't do it unless you're built like the incredible hulk.
Removing the pump might get you a touch, but I doubt even a tenth, there's very little load from the pump when the wheels are strait, it really only puts a load on the motor when you're turning the car.
Taking the pump out will clean the engine bay up some and is a good weight reduction mod, and is livable if you roll on skinny's all the time, but if you daily drive the car with a stock sized tire, I wouldn't do it unless you're built like the incredible hulk.
04-09-2009, 08:22 AM
#4
You will not see a .3 drop from removing the belt completely, nevermind just off the power steering pump.
Removing the pump might get you a touch, but I doubt even a tenth, there's very little load from the pump when the wheels are strait, it really only puts a load on the motor when you're turning the car.
Taking the pump out will clean the engine bay up some and is a good weight reduction mod, and is livable if you roll on skinny's all the time, but if you daily drive the car with a stock sized tire, I wouldn't do it unless you're built like the incredible hulk.
Removing the pump might get you a touch, but I doubt even a tenth, there's very little load from the pump when the wheels are strait, it really only puts a load on the motor when you're turning the car.
Taking the pump out will clean the engine bay up some and is a good weight reduction mod, and is livable if you roll on skinny's all the time, but if you daily drive the car with a stock sized tire, I wouldn't do it unless you're built like the incredible hulk.
But like said, the gain will be minimal, it would be a touch more compared to a short belt to remove the unit, and clean up the engine bay.
The P/S delete for me is for a track car, not a street car. In my opinion.
04-09-2009, 08:58 AM
#5
If you change to a manual rack that will not interfere with you street wheels (as most do because of the bump steer spacers that are needed) it wouldn't be as bad since the ratio is better... but for a street car ditching the power steering is a pretty hardcore mod IMO
04-09-2009, 10:05 AM
#6
A great example was my Brother's 1988 Mustang GT, the P/S Pump was dying and it was a auto with no stall, I had to man handle the steering and only if I revved the motor to get it to move easy. had that thing gone out it would absolutely suck, especially in a parking lot.
04-09-2009, 08:59 PM
#7
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i know all about it, threw my serp belt on my old LT1 about 2 miles from my house, i literally had to stand up to get leverage on the wheel to make a turn, i must of looked pretty goofy.
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04-09-2009, 09:34 PM
#8
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School of Automotive Machinists (S.A.M.) did it on there 99' SS and got .3 tenths out of it which took there car from a 11.70@119.95 to a 11.474@120.45......
Gates part number by the way is PN K-060512
Gates part number by the way is PN K-060512
04-10-2009, 04:30 AM
#10
Is the part # for the stock pulley or a 25% underdrive? Does anyone know the number for a UD pulley?
04-10-2009, 07:09 AM
#12
I do not know the specifics about the car such as race weight, driveline, or any other specifics.
What I see is a 0.226 second reduction in time with 0.5 mph increase in speed.
It's not 3 tenths, its 2 and change. I can see MAYBE 2-4 hp diff which the 1/2 of one mph shows but the 2 tenth shows more gain then what the MPH changed since mph is a weight to hp ratio essentially. I would wager the car had a better launch or the weather/track conditions changed. S.A.M. are some awesome guys and not to take anything away from them, but....
the decrease in ET compared to the increase in MPH does not correllate correctly, something else influenced that ET.
04-10-2009, 01:17 PM
#13
04-10-2009, 09:33 PM
#15
