Power steering
Power steering
Author
Discussion

SILICONEKID345HP

Original Poster:

14,997 posts

260 months

Wednesday 15th October 2014
quotequote all
Would there be away of reducing power steering assistance ? maybe a different pump or larger pulley !

I want power steering with less assistance .


ClassiChimi

12,424 posts

178 months

Wednesday 15th October 2014
quotequote all
Maybe a rack without power assistance me old mate! He he he

chimyellow

363 posts

288 months

Wednesday 15th October 2014
quotequote all
Mine got easier over time (it turns out that it happened slowly so I did not notice it)
Since having it overhauled it has much more feeling.

Hedgehopper

1,542 posts

273 months

Thursday 16th October 2014
quotequote all
SILICONEKID345HP said:
Would there be away of reducing power steering assistance ?
I wondered that too, the steering is fine up to 20 or 30 mph and then becomes far too light once on the open road.

I don't think altering the pulley size would work as I believe that the pump runs at a constant pressure, bleeding off pressure as the revs rise.

Some form of external pressure relief valve might work

Would the steering become heavier if the castor angle was increased? To do this you would need a wider gap in the top wishbone to fit a thicker than the normal 8mm spacer. What is the standard castor angle? I have read that 5 degees is about max. before it starts to effect the camber angle.

phazed

22,468 posts

233 months

Thursday 16th October 2014
quotequote all
Fit wider tyres.

Unfortunately you'll have to live with it Daz.

I drove a 54 Punto last night, (don't ask!) and the steering had so much feel.

Why couldn't TVR get that right, oh I know, lack of R&D and budget!

brett84

1,291 posts

182 months

Thursday 16th October 2014
quotequote all
not having power steering is a gift and a curse. Crap if just using around town but nice when up to speed. I forgot how heavy it was at slow speed

SILICONEKID345HP

Original Poster:

14,997 posts

260 months

Thursday 16th October 2014
quotequote all
There must be a way of having it set around 50% that would be perfect .. I would rather have slightly stiffer steering at low speeds and have less assistants at higher speeds .

I don`t want non powers steering it is just to heavy .

There must be someone like Enginner1949 who could do something .

phillpot

17,510 posts

212 months

Thursday 16th October 2014
quotequote all
SILICONEKID345HP said:
There must be someone like Enginner1949 who could do something .
Not doubting Mr Engineers abilities at all but have you tried talking to the professionalsscratchchin

SILICONEKID345HP

Original Poster:

14,997 posts

260 months

Thursday 16th October 2014
quotequote all
phillpot said:
Not doubting Mr Engineers abilities at all but have you tried talking to the professionalsscratchchin
So what is the problem ,is it the rack or the amount of assistance ?

phillpot

17,510 posts

212 months

Thursday 16th October 2014
quotequote all
SILICONEKID345HP said:
phillpot said:
Not doubting Mr Engineers abilities at all but have you tried talking to the professionalsscratchchin
So what is the problem ,is it the rack or the amount of assistance ?
I would guess the amount of assistance, but I know nothing. Those guys live and breath steering racks, gotta worth a phone call?

SILICONEKID345HP

Original Poster:

14,997 posts

260 months

Thursday 16th October 2014
quotequote all
phillpot said:
I would guess the amount of assistance, but I know nothing. Those guys live and breath steering racks, gotta worth a phone call?
Is it a TVR characteristic or just the Chimaera ?

EGB

1,774 posts

186 months

Thursday 16th October 2014
quotequote all
EGB said:
chimyellow said:
Mine got easier over time (it turns out that it happened slowly so I did not notice it)
Since having it overhauled it has much more feeling.
Mike. Who did the overhauling of your rack? Thanks... Eddie.
Kiley and Clinton?

They may also help Daz.

SILICONEKID345HP

Original Poster:

14,997 posts

260 months

Thursday 16th October 2014
quotequote all
EGB said:
The steering is very responsive ,i like that ,its just to light .

Mr Haribo

318 posts

218 months

Thursday 16th October 2014
quotequote all
I have some thought's about this weather there is any truth in it at all I cant confirm.

The pas pipes are clipped to the engine so being heated, yet most cars the pas pipes are run to the front and cooled.

Larger alloy pulley on the pas pump.

Flow limiter there must be one built into the pump can it be adjusted eg spring etc

smaller steering wheel ?

A longer pipe run or a oil cooler if it will take the pressure then would reduce flow to the rack

I have packed the rack out, it has helped with tramlining so less twitchy

Replace front tyres to 235 on 16" r888 ?

as I say they are just thoughts........





SILICONEKID345HP

Original Poster:

14,997 posts

260 months

Thursday 16th October 2014
quotequote all
Mr Haribo said:
I have some thought's about this weather there is any truth in it at all I cant confirm.

The pas pipes are clipped to the engine so being heated, yet most cars the pas pipes are run to the front and cooled.

Larger alloy pulley on the pas pump.

Flow limiter there must be one built into the pump can it be adjusted eg spring etc

smaller steering wheel ?

A longer pipe run or a oil cooler if it will take the pressure then would reduce flow to the rack

I have packed the rack out, it has helped with tramlining so less twitchy

Replace front tyres to 235 on 16" r888 ?

What is "I have packed the rack out, it has helped with tramlining so less twitchy"

as I say they are just thoughts........




SILICONEKID345HP

Original Poster:

14,997 posts

260 months

Thursday 16th October 2014
quotequote all
phazed said:
Fit wider tyres.

Unfortunately you'll have to live with it Daz.

I drove a 54 Punto last night, (don't ask!) and the steering had so much feel.

Why couldn't TVR get that right, oh I know, lack of R&D and budget!
I thought you fitted a modified Subaru rack ,did that not help .. The design fault needs to be found and rectified .

phazed

22,468 posts

233 months

Thursday 16th October 2014
quotequote all
SILICONEKID345HP said:
I thought you fitted a modified Subaru rack ,did that not help .. The design fault needs to be found and rectified .
the Scooby rack was in the 4.6.

The 55 has the tiv one.

SILICONEKID345HP

Original Poster:

14,997 posts

260 months

Thursday 16th October 2014
quotequote all
phazed said:
the Scooby rack was in the 4.6.

The 55 has the tiv one.
Did it change the steering feel ?

phazed

22,468 posts

233 months

Thursday 16th October 2014
quotequote all
The Scooby rack had a little more feel imho.

chimyellow

363 posts

288 months

Friday 17th October 2014
quotequote all
EGB said:
EGB said:
chimyellow said:
Mine got easier over time (it turns out that it happened slowly so I did not notice it)
Since having it overhauled it has much more feeling.
Mike. Who did the overhauling of your rack? Thanks... Eddie.
Kiley and Clinton?

They may also help Daz.
Yes it was Kiley Clinton.
I was very happy with the service and advise received.