Anybody have find a solution for remove steering power assist, my friend remove power assist on his RX7 and remove all restriction inside is steering rack and is steering was as smooth as first gen NSX but i find nothing for the S2KI except remove EPS fuse that give hard steering feel. I think to install modified RX7 modified steering rack, anywone have simplier solution?

 

Can I ask why? I mean I know how via disassembly of the rack... but its such a good system

 

Shad at Driving Ambition has removed some stuff from one to make it manual.
I would send him a email and see what parts and if he has them available
info@drivingambition.us

I think thats his email or will at least get to him

I ran the silver number 8 last weekend with the regular alignment and it was heavy but not too bad and was not sore the next day.
only did 1 session but if it was really bad I would have been hurting just from that.

If you remove it and adjust the castor one way or another its easier to steer at speed.

I will say I did notice the difference of not having it connected at speed and I did like the feedback/feel from it

 

ideally you also gut the power steering rack to make it a little easier to turn and save the extra weight.

 

I would not recommend it, but I've never driven one with the internals gutted. Mine went out and I had to drive at NOLA Motorsports Park without power steering. I did not like the way it felt. The car lost it's nimble character. I was also considerably off pace.

 

Wynn,
You can adjust your alignment settings to give it back some of the nimbleness.
I have not fixed my alignment yet or gutted the rack but Krazik has been driving all year with a gutted stock rack in a STU car and is not looking like Popeye yet

Bottom line to the OP.
Yes it can be done.
have many people done it? No.
its all up to you the s2k does not have as large a modder market as the RX7's so naturally less people have done it

 

yes you have to change the caster too. if you just pull it and leave the alignment alone it'll be super heavy.

 

During my recent build Phil disconnected power from my e-steering, but the rack is not gutted yet. Over 5 sessions in ~95F at a recent Thunderhill shake-down track day, running -1.5 camber with stock caster settings was not an issue. There was more feedback (though not Miata-like) and acceptable weight while moving, though quite heavy maneuvering in the paddock. A 30m race wouldn't be a concern, though an enduro may be draining. My gloves gripped my suede steering wheel quite well which helped keep my grip lighter too, so no problem holding a cold beer afterwards.

 

I think it comes down to personal preference. My caster was maxed and I still did not like it. I felt it was harder to sense and hold the slip angle. I like a light wheel because I like to be light on the controls. The S2k was designed for you to finesse it - from the steering to the gear box. The car really rewards smooth, deliberate inputs. I get more information out of the steering wheel and what the chassis is doing when the eps is functioning.

 

Don't you want to lower caster and not increase it to lighten the steering?