Electric Power Steering? SE6

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Electric Power Steering? SE6

Post by spegru » Fri Jan 12, 2018 8:06 pm

Corsa based electric PAS setups are all the rage in Ford Escort circles and I have also done this on a light weight Dutton with good effect
However I know that PAS is a Scimitar SE6 standard option but which is best/easiest?
Is a quicker rack available than what appears to be 4.5 turns lock to lock on mine? I read Triumph TR6 for an SE5. I'd have thought 3 turns with PAS could be a good combo
I even have a couple of Corsa steering motors lying around and it looks relatively easy to do, esp while the body is off



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Electric Power Steering? SE6

Post by Roger Pennington » Fri Jan 12, 2018 8:26 pm

The PAS rack is quicker.

However, the big advantage of electric PAS is that the electric doesn't leak out and form a puddle on the floor! Peter Freeman has done some EPAS conversions on 5-series and Small Sports (all using standard racks AFAIK?????).


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Electric Power Steering? SE6

Post by peter freeman » Fri Jan 12, 2018 9:40 pm

I have done two 5's a SS1 a Sabre and TVR using MGF EPAS. The MGF system is lighter and more compact ( the motor does not take up as much space ). Still got our Coupe to do although it does not need it as much - all electrics done just the column to do.
For info look here - https://www.scimitarweb.co.uk/~nenoggins/technical.htm
You need the steering wheel - until you get a boss that fits, the column, the ECU and plugs - best if you can get the full cables loom which most companies don't like to bother getting out for you however one company who will are Jason at mg-alfa-spares@hotmail.co.uk ( 07711097957 )
ps Corsa system was too big for the TVR



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Electric Power Steering? SE6

Post by petrolbob » Fri Jan 12, 2018 10:07 pm

Peter
which model of TVR did you convert to EPAS ? I have a non PAS 350i and have considered a PAS conversion however EPAS may be an alternative worth considering.

Bob



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Electric Power Steering? SE6

Post by peter freeman » Fri Jan 12, 2018 10:32 pm

S3 - with the 2.9I engine. The Corsa steering ( which the owner bought before I came along ) was too wide to fit in the foot well - much bigger motor.



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Electric Power Steering? SE6

Post by petrolbob » Fri Jan 12, 2018 11:12 pm

thanks



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Electric Power Steering? SE6

Post by spegru » Sat Jan 13, 2018 9:49 am

Thanks for those. I have never seen an MGF epas motor, I've used a Corsa C motor and also have a Corsa D motor which is more compact. I will probably have a go at offering them up. I guess the motor could go either in the foot well or the engine bay although perhaps it wouldn't last as long next to the exhaust

What is available quick rack wise for an SE6?



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Electric Power Steering? SE6

Post by gtcse8 » Sat Jan 13, 2018 11:42 am

Roger
The electricity does leak out, but it usually goes upwards and produces a lot of heat and smell which is harder to wash off the garage floor.

Spegru the Scim is already a QR at 2 1/2 turns
Nothing currently available for QR on PAS Scimitars.
Most modernish cars also seem to have similar steering ratios, AND you have the problem of making it fit the existing parts on the Scim.

Not too old Rover 75/MGZ TT and Jag X Type are very similar at 2 3/4 turns
Last edited by gtcse8 on Sat Jan 13, 2018 12:58 pm, edited 1 time in total.


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Electric Power Steering? SE6

Post by willholderogri » Sat Jan 13, 2018 12:54 pm

i fitted a MGF column to my SE5A a very long time ago and it the best thing i have done to the car (i originally went with corsa after correspondence with a gent on here) I found mgf columns were less expensive in comparison with corsa, as a bonus fitted better and feature a telescopic shaft plus you can turn them off if you want to. All the original switches will fit and the column has proper bearings. other members have since fitted their own versions.


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Electric Power Steering? SE6

Post by willholderogri » Sat Jan 13, 2018 12:56 pm

The motor will be in the footwell (part of the column) it will be obvious when you see one up close


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Electric Power Steering? SE6

Post by spegru » Sat Jan 13, 2018 7:21 pm

It would be interesting to see some pictures of the MG setup in situ.
I have been alerted to the possibility that suspension geometry needs to be slightly different (with different trunnions?) for a PAS setup due to the Caster angle needing to be increased. I can see that as we had similar problems with the PAS Dutton - increased Caster from original 2.5deg to about 8deg in order to improve steering feel at speed.
The suspension will need to be rebuilt anyway so not an issue as long as you can get the parts?
As to Rack ratios the non PAS rack I have is certainly not 2.5 turns - more like 4.5. Is that the hydraulic PAS rack you are talking about?
Is the SE6 rack shared with another vehicle such as a Triumph? It would help to ID a quick version



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Electric Power Steering? SE6

Post by peter freeman » Sat Jan 13, 2018 8:20 pm

There are some pictures in the nenoggin site - must be easier to fit in the 6's as there is more room.



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Electric Power Steering? SE6

Post by gtcse8 » Sun Jan 14, 2018 10:32 am

spegru I was under the impression that your car already has Power Assisted Steering fitted.
There is only One PAS rack that came with Scimitars.
It is a hydraulic rack that Reliant developed with Burman of Birmingham.
It was not fitted to any other production car.
Changing to PAS has been covered many times on here.
The manual rack is an Austin derived unit and I think there are less of them out there than Scimitars, and as you rightly say is 4 1/2 L2L.
Last edited by gtcse8 on Sun Jan 14, 2018 12:49 pm, edited 1 time in total.


See the Beast on youtube under" RELIANT SCIMITAR CONVERSION LOL.,Se5,Se5a, Se6a, Two Se6b`s, GTC, SST 1800Ti & not a lot of sense

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Electric Power Steering? SE6

Post by spegru » Sun Jan 14, 2018 12:37 pm

No, mine is manual for now. Austin derived you say. That is a help although perhaps less likely that there would be a quick version



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Electric Power Steering? SE6

Post by gtcse8 » Sun Jan 14, 2018 12:46 pm

I actually recondition racks for the Austin OC and have never come across a QR or heard of one, probably because these were main stream cars and as such the owners were not bothered about "Modding their daily hack.

BMC motorsport did quite well in the 70`s, but most of the stuff used was straight out of the parts bin, unlike todays stuff.

Incidentally the very early 1800/2200 used a Slower rack until PAS came along, then the manual was altered to the same ratio.
These early racks are rare and sought after as they make the steering a lot lighter than later cars.


See the Beast on youtube under" RELIANT SCIMITAR CONVERSION LOL.,Se5,Se5a, Se6a, Two Se6b`s, GTC, SST 1800Ti & not a lot of sense

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