Power Steering.... Any one done it

[masterfabr]

That's what I was wondering about. I really like the busas but they are not torque monsters at low rpm's.I could be wrong but I'm betting that pump is quite the torque parasite.And an alternator will suck up quite a few lb.ft. at full output.I like the idea of the power steering but have my reservations about it on a busa also.

[yoshi]

Originally Posted by masterfabr\";p=\&quot

Just curious but have you any info on how much torque it takes to turn the pump and alternator running directly off the crank at idle and 10K? I'd think it would be pretty substantial.

Not worried about it. *The rail i'm building s getting a 1400 kit and every other internal upgrade you can think of. It will putting around 250 hp to the rear wheels and a boat load more torque, especially mid and low end. *I will do a dyno break in with an engine stand, so i'll have him run the numbers with and without the components so I can see the exact draw at any rpm from using the units.........

[yoshi]

and i'll be more than happy to post the dyno results for the engine for both sets of numbers. *I'm actually have 2 motors built the exact same way at the same time right now, with all the same parts, the only difference is one will have power steering and an alternator, the other won't, so i'll have the dyno numbers to compare side by side as well...

[nutz4sand]

Just in case anyone cares or wants to look into it the Subaru XT6 cars had a 12 volt powersteering pump (Its mounted above the engine near the hood and firewall.) These had a system that turned them on when needed. Might be something to look at if you do not want to or do not have a power tap off the motor. Bill

[busasandrail]

[quote=yoshi\";p=\"60560]

Originally Posted by "masterfabr\";p=\"60554":22719yxw

Just curious but have you any info on how much torque it takes to turn the pump and alternator running directly off the crank at idle and 10K? I'd think it would be pretty substantial.

Not worried about it. *The rail i'm building s getting a 1400 kit and every other internal upgrade you can think of. It will putting around 250 hp to the rear wheels and a boat load more torque, especially mid and low end. *I will do a dyno break in with an engine stand, so i'll have him run the numbers with and without the components so I can see the exact draw at any rpm from using the units.........[/quote:22719yxw]

I'm pretty curious also...I bet the torque numbers at idle are really close between a stock motor and a built motor, and I would lean towards the stock motor to have more. Either way it will be intresting to see.

[masterfabr]

Uh,that's not what he said.You might want to reread it.

[yoshi]

been doing some reading, and so far best I can tell is you use less than 1 hp when not turning with a power steering pump installed, and about 5 hp when it's in use. *This doesn't seem that bad to me, but again, i'll know for sure after the dyno results are available for the motors.....

[masterfabr]

Yeah, I'm seriously interested. Whens the dyno session?

[yoshi]

I won't be turning at idle, so 1 hp taken down low seems really good to me, when the 5 hp pull kicks in, the rpms will be up for driving and turning..

[yoshi]

Originally Posted by masterfabr\";p=\&quot

Yeah, I'm seriously interested. Whens the dyno session?

He's building both of the motors right now, and i'm building a stand to hold the motor and a rear wheel so he can do the break in runs and map them. *I'm also dropping the transmission gears off at the cryo treatment center this week, and they should be done in time for the motor to be put back together without holding it up, but I don't know exactly when it will be ready, i'm thinking a couple weeks? *I am just as anxious as you, so I will post the dyno numbers in my log the day I have them