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post #1 of 14 (permalink) Old 08-20-2011, 03:04 PM Thread Starter
 
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Electric Power Steering Kit for Revolt

I just dropped off my buggy at a R&D subcontractor to Unisteer in Cleveland Ohio, as a test mule, for them to develop/market a kit for all Revolts.
Mine has a 2:1 steering quickener already and is a real bear to steer.
My buggy is precise and not twitchy at 70+mph without power and just the quickener now.
One of the greatest benefits of power steering, as I understand it, is the elimination of bumpsteer and sudden impact feedback to the steering wheel.
They told me there units are torque input sensitive and offer little to none assist at speed. Thus I/the kit should retain good feel and feedback at speed.
Initial thoughts are to connect the quickener output spline directly to the lower 36 spline u-joint at the rack/box thus leaving enough room for their unit above that and below the bearing support.
This will pretty much take up the entire shaft between the u-joints
A few questions remain that they need feedback on.

1) Would you guys prefer quick 1 turn lock to lock (like mine) or stay with the slow stock steering?
2) Should they bother to develop kits w/o the quickener or just one kit?
3) Are the XL's steering shaft geometry/dimensions the same/similar?
4) Any other thoughts, interest or questions?
They said mine should be done by 9/24/11
I will find out how long from prototype to production in coming weeks.
I will also ask about a group buy if interest grows.
Let me know.

10/15/11
Got my Revolt back, friday with electric power steering from Unisteer. Works near effortlessly.
Today I got the rear brakes separated with the use of a FL400/Pilot rear master cylinder. Not a pretty setup but works.
Heres some pics: Attachment:

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More Pics: In post # 9

Last edited by renegadevtwin; 10-15-2011 at 06:26 PM.
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post #2 of 14 (permalink) Old 08-20-2011, 03:27 PM
 
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Re: Electric Power Steering Kit for Revolt

Quote:
Originally Posted by renegadevtwin View Post
I just dropped off my buggy at a R&D subcontractor to Unisteer in Cleveland Ohio, as a test mule, for them to develop/market a kit for all Revolts.
Mine has a 2:1 steering quickener already and is a real bear to steer.
My buggy is precise and not twitchy at 70+mph without power and just the quickener now.
One of the greatest benefits of power steering, as I understand it, is the elimination of bumpsteer and sudden impact feedback to the steering wheel.
They told me there units are torque input sensitive and offer little to none assist at speed. Thus I/the kit should retain good feel and feedback at speed.
Initial thoughts are to connect the quickener output spline directly to the lower 36 spline u-joint at the rack/box thus leaving enough room for their unit above that and below the bearing support.
This will pretty much take up the entire shaft between the u-joints
A few questions remain that they need feedback on.

1) Would you guys prefer quick 1 turn lock to lock (like mine) or stay with the slow stock steering?
2) Should they bother to develop kits w/o the quickener or just one kit?
3) Are the XL's steering shaft geometry/dimensions the same/similar?
4) Any other thoughts, interest or questions?
They said mine should be done by 9/24/11
I will find out how long from prototype to production in coming weeks.
I will also ask about a group buy if interest grows.
Let me know.
The only question I have is how many amps is that going to add to the load?
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post #3 of 14 (permalink) Old 08-20-2011, 08:49 PM
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Re: Electric Power Steering Kit for Revolt

The Uni Steer in my Riot changed the whole car for the better. I installed the standard RZR-S unit in the Riot and modified the mount brackets. The turning was fine with the power assist. It was the slower steering version I believe. Just my .02.
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post #4 of 14 (permalink) Old 08-20-2011, 09:09 PM Thread Starter
 
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Re: Electric Power Steering Kit for Revolt

[The only question I have is how many amps is that going to add to the load?[/QUOTE]

During my first conversation with Marc @ Unisteer (when I was asking if their units had enough power to make a system work which was 4 times harder than a RZR to steer) he told me they had two strength motor choices now; the normal 170watt/32 amp system and the newer one for muscle cars and larger applications which is 220w/45 amps.
Marc stated over the phone he thought the 170watt/32 amp unit would do the job. However today when he felt what a bear it was to steer said he may use the 220watt/45 amp unit.
I already have a larger Odyssey PC625 deep cycle battery which should help.
Remember this is peak use which would only apply when parking, turning around, or rockcrawling at low speeds.
Another question for the more electrically inclined: Is there a way to isolate the amperage/watt draw directly from the battery rather than our weak 350 watt stators?
I will pose this question to Marc and his engineering staff also.

Heres the Battery specs:




PC 625 Specs:
  • YB16-CLB replacement
  • 625 cranking amps for 5 seconds
  • 545 cranking amps for 10 seconds
  • 480 cranking amps for 20 seconds
  • Short circuit current over 1800A
  • 27 minute reserve capacity with 25amp load
  • Length 6.7"
  • Width 3.90"
  • Height 6.89"
  • Weight 13.2 lbs http://www.amazon.com/gp/product/images/B0006I4MBE/ref=dp_image_0?ie=UTF8&n=15684181&s=automotive
Odyssey design:
  • 2 year full warranty
  • Rugged Drycell sealed design
  • Military grade
  • Vibration resistant
  • 60% more starting power
  • Deep discharge reserve power
  • 2 year storage life
  • 8-12 year design life
$106.67 plus free ground shipping

Last edited by renegadevtwin; 08-20-2011 at 09:18 PM.
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post #5 of 14 (permalink) Old 08-20-2011, 11:42 PM
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Re: Electric Power Steering Kit for Revolt

Quote:
Originally Posted by renegadevtwin View Post
I just dropped off my buggy at a R&D subcontractor to Unisteer in Cleveland Ohio, as a test mule, for them to develop/market a kit for all Revolts.
Mine has a 2:1 steering quickener already and is a real bear to steer.
My buggy is precise and not twitchy at 70+mph without power and just the quickener now.
One of the greatest benefits of power steering, as I understand it, is the elimination of bumpsteer and sudden impact feedback to the steering wheel.
They told me there units are torque input sensitive and offer little to none assist at speed. Thus I/the kit should retain good feel and feedback at speed.
Initial thoughts are to connect the quickener output spline directly to the lower 36 spline u-joint at the rack/box thus leaving enough room for their unit above that and below the bearing support.
This will pretty much take up the entire shaft between the u-joints
A few questions remain that they need feedback on.


1) Would you guys prefer quick 1 turn lock to lock (like mine) or stay with the slow stock steering?
2) Should they bother to develop kits w/o the quickener or just one kit?
3) Are the XL's steering shaft geometry/dimensions the same/similar?
4) Any other thoughts, interest or questions?
They said mine should be done by 9/24/11
I will find out how long from prototype to production in coming weeks.
I will also ask about a group buy if interest grows.
Let me know.

Will it clear the fuel tank?

Didn't you relocate your fuel tank already?

Problems? Questions? Need parts or Repairs? Send us an e-mail, PM, or Call (435) 705-9846

E-mail: [email protected]

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post #6 of 14 (permalink) Old 08-21-2011, 08:44 AM Thread Starter
 
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Re: Electric Power Steering Kit for Revolt

Mike, I brought them the stock tank so their kit will be designed to fit around stock configuration.
Marc said there is plenty of room above the stock steering column axis to make a kit fit.


2007 HMF customized Revolt (exhaust, fuel controller, wrap, bumpers and narrowed suspension for GNCC racing).
Full hand controls, separate braking, DWT beadlocks, 2:1 steering quickener,
Fireball Billet hubs, Holeshot ATR's and Unisteer electric power steering, swaybars and Tatum rack.
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post #7 of 14 (permalink) Old 08-21-2011, 07:30 PM
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Re: Electric Power Steering Kit for Revolt

Quote:
Originally Posted by renegadevtwin View Post
Mike, I brought them the stock tank so their kit will be designed to fit around stock configuration.
Marc said there is plenty of room above the stock steering column axis to make a kit fit.
We'll have to see what they come up with. Maybe it might even clear a Harmon racing cell.

Problems? Questions? Need parts or Repairs? Send us an e-mail, PM, or Call (435) 705-9846

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post #8 of 14 (permalink) Old 10-13-2011, 12:40 PM Thread Starter
 
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Re: Electric Power Steering Kit for Revolt

Getting my revolt back from a Unisteer subcontractor, in Cleveland tommorow. I was informed they could turn it lock to lock with 2 fingers without the steering wheel, despite the steering quickener. They used the bigger motor (same as the muscle cars) for the electric power steering due to the quickener.
They should be marketing a kit soon for other Redline Revolt owners to buy.
I have a FL400/ Honda Pilot master cylinder and all pieces to separate the rear brakes. Last race I broke a tie rod end. Mike set me up with new FK rod ends. Tie rods are now in a double shear configuration so now we will find the next weakest link.
I cannot wait to race again. Hopefully the Honda's won't use me for a berm again in the first corner. Hope to get in and out faster with the rear brakes separated.
Hope we get the right weather between mudfest and dustbowl.

http://www.noora.freewebtools.com/

Last edited by renegadevtwin; 10-13-2011 at 12:46 PM.
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post #9 of 14 (permalink) Old 10-15-2011, 06:27 PM Thread Starter
 
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Re: Electric Power Steering Kit for Revolt

Car finally complete
More Pics:
Attached Images
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File Type: jpg 101511 014.jpg (96.3 KB, 241 views)
File Type: jpg 101511 016.jpg (95.4 KB, 42 views)

Last edited by renegadevtwin; 10-15-2011 at 06:40 PM.
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post #10 of 14 (permalink) Old 10-16-2011, 09:40 AM
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Re: Electric Power Steering Kit for Revolt

Quote:
Originally Posted by renegadevtwin View Post
Car finally complete
More Pics:
Looks good.

Problems? Questions? Need parts or Repairs? Send us an e-mail, PM, or Call (435) 705-9846

E-mail: [email protected]

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Last edited by Red Rock Powersports; 10-16-2011 at 09:46 AM.
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