Does anyone have before & after dynos for the power steering delete?

[Cyrix2k]

Just curious if anyone has dynoed before & after deleting the power steering on an e30. Mostly looking for parasitic loss numbers.

[bmwguy325is]

Ya it didnt make a difference so i deleted it

[jw 325ic]

Take off the belt and tell me how much faster it feels. Then go park in a crowded parking lot

[StealthiE30]

Take off the belt and tell me how much faster it feels. Then go park in a crowded parking lot

Top notch advice right there!

[camip]

The maybe 1 horsepower you gained isn't going to be worth you looking like the skipper of the Santa Maria in a hurricane trying to park at the mall.

[Xat1cZ]

+20-30 bhp.. depends on the width of the belt being removed , wider belt more hp gain.

And if you can't properly maneuver your vehicle at all situations without power steering you are indeed a 10 year old girl.

[MR 325]

+20-30 bhp.. depends on the width of the belt being removed , wider belt more hp gain.

And if you can't properly maneuver your vehicle at all situations without power steering you are indeed a 10 year old girl.

MR 325 likes this.

[dnguyen1963]

Hey, I used to drive cars without power steering and had no problem parking the car anywhere. Remember, w/o PS one needs to move the car a bit before attempting any steering. It is plain old physics.

[SlamedIAm]

+20-30 bhp.. depends on the width of the belt being removed , wider belt more hp gain.

And if you can't properly maneuver your vehicle at all situations without power steering you are indeed a 10 year old girl.

+1000

I'm a twig and I don't miss ps at all.

[jlevie]

I've heard numbers from 4-6hp, but what I saw on a dyno was more like 1-2hp. Which is on the order of the repeatability/uncertainty in dyno runs. So I'd have say the power advantage is pretty much nothing.

I deleted the power steering on my race car and have run it like that for a long time. But I've recently learned that really isn't a great idea. The lack of power steering increases driver fatigue and means having to move your hands around on the steering wheel for leverage, though deleting PS does increase steering feel. AFAIK, all pro road race cars have some form of power steering. I've put the system back on, but one of the small rack lines is leaking and will have to be changed.

What I'd really like is "dial back" the pump for less assist.

[scottinAZ]

What I'd really like is "dial back" the pump for less assist.

I would think there is some form of hydraulic pressure regulator on the market that doesnt carry too high of a weight penalty that can be adapted for your application. change the pump and rack lines to AN fittings and you should be able to get something to work

[jlevie]

I've thought of a bypass type pressure regulator and of fitting a larger pump pulley. But haven't yet tried to do anything along those lines.

[drumad]

Your turning horsepower goes down definitely.

[jeffnhiscars]

I would think there is some form of hydraulic pressure regulator on the market that doesnt carry too high of a weight penalty that can be adapted for your application. change the pump and rack lines to AN fittings and you should be able to get something to work

Hydraulics 101..get a variable output pump. I sold Toyotas when they were made from beer cans and I think they had them then.

Someone should do this mod and report back ;)

[Cyrix2k]

interesting. I wouldn't mind reduced power assist. My e30 currently has the p/s deleted and to be honest, it's not hard to turn at all.