Wednesday, February 10, 2010 - 03:19 pm, by: Robert Cranfield(Robc)
Thanks for the prompt response Peter,
I feared it was so but thought perhaps a poverty pack may have existed.
The only problem I believe will be class legality which I will have to confirm. Depending on how firm it gets, there may also be an issue in avoiding a spin.
Given the other similarities, did the JZA80? Supras come out manual steer?
Thursday, February 11, 2010 - 09:31 pm, by: Robert Cranfield(Robc)
I couldn't give you an accurate figure Austen,
There are a lot of guesstimates online that vary widely and I'm sure pump design, operating pressures and the like will vary it as well.
My own personal belief is around 3hp.
Many years ago we used to drag race an almost stock HJ Monaro at Castlereagh and dropping off the power steer belt did improve the times. I cannot remember the exact number any more sadly and there were a lot of other things we did to try and eek out that last ounce of power from the 308.
Thursday, February 11, 2010 - 10:04 pm, by: Damian Ware(Frozenpod)
Rob you can probably save some HP by disconnecting the solenoid which changes the level of assist and I would assume the power consumption of the pump.
Removing it results in stiff steering and I assume puts very little load on the pump.
Friday, February 12, 2010 - 02:34 pm, by: Robert Cranfield(Robc)
Thanks Damian,
I'll keep that in mind too. I'd really like to just ditch the pump altogether but will cross that bridge when I come to it. I plan to ask the question of the tech guys at speed week next month.
Friday, February 12, 2010 - 02:38 pm, by: Robert Cranfield(Robc)
G'day Rob,
No matter what you're still driving the belt and turning the pump. You'd be surprised how much steering input there is when driving in a straight line whether from road imperfections, tyre pressure differences, cross winds etc. Next time you're driving down a straight bit of road, lock the steering wheel into one position and see how long before you need to make a correction. Then try it at 320kph on damp salt