Wilwood Pro Spindle

Jayson · 4th June 2012, 12:53 PM

Hi guys

Have any of you any experience of using the Wilwood Pro Spindle as an upright for the 40?Dave (Fastdruid) sent me a link the other day and being a budget conscious builder the price looks very good. Rally Design also do a complete bolt on Dynalite Brake kit (inc hubs) for them too for under 500 quid?

Would this be applicable? What about suspension geometry issues etc?

Professional Motorsport Parts, Spares & Rally Equipment from Rally Design

Cheers

Jayson

David · 4th June 2012, 05:43 PM

Jase, you might find this of use
http://www.wilwood.com/PDF/Flyers/fl193.pdf

Suggests designed for Mustang II suspension, no idea how that relates to Cortina/Granada geometry though (I'd love btw if anyone has details of those to have them).

Mike Pass · 4th June 2012, 07:06 PM

The drawing of the Willwood Mustang upright shows a KPI of 11 degrees. This is much better than the Mk2 Granada KPI of about 4 degrees. The drawing shows a spacing of 8.15" between the top and bottom tapers. To get a true comparison of overall effective upright height you would need to measure both setups with swivel joints attached and take a measurement from the centre of the top swivel to the centre of the bottom swivel. You could then work out where to vertically position the mounting of the top and bottom chassis mountings for the wishbones using a "string computer" or similar to check out the geometry to get a sensible camber change in bump and droop and roll centre location. Once you have decided which rack to use you can work out where the wishbone mounts can be placed relative to the car centre line so as to eliminate bump steer. The top and bottom mounts and the steering arm inner ball joints should be in the same plane as a rough guide to avoid bump steer and then fine tune with small adjustments of rack height or fore and aft.
The rack determines where the wishbone mounts are relative to the car centre line and the spindle height determines the vertical spacing of the wishbone mounts.
The rack ratio combined with the length of the steering arm determines the turns of the steering wheel lock to lock.
Cheers
Mike

David · 4th June 2012, 08:48 PM

Are Cortina and Granada the same KPI?

I believe Cortina Mk3/4/5 are about 4.3° but I've only found that in one place and been unable to verify it (or if Granada MK2 are the same).

Phil · 4th June 2012, 08:49 PM

Jayson:
We did a couple of front suspensions using these uprights, They are very well built, the steering arm bolts on and can be run front or rear or as we opted to put it on top and steer the upright that way to increase the rack height, and therefore the steering shaft run was much straighter from the dash. Ball joints are easily available, and the parts to fab your own wishbones and mount the ball joints are also pretty common. I have used mono bolts, rod ends, and screw in type balljoints with good success.
There are a number of brake kits available, and they are all bolt up affairs and there is even a six piston kit with 12 or 13" rotors if I remember correctly.
All of the Wilwood brake kits come with an aluminum hub, and rotor hat, pretty lightweight stuff.
The ackerman on these uprights is almost perfect for a 95" wheelbase and there is very little scrub when turning.

Cheers
Phil

Jayson · 6th June 2012, 10:24 AM

Hi guys.

Thanks for your input.

Phil

Did you use these uprights on a 40 kit or a different application?

Cheers

Jayson

Mike S. · 6th June 2012, 01:18 PM

Have you checked out Speedway? They carry the Mustang spindels & "A" arms, brakes etc. Very good prices usually.
SpeedwayMotors.com
Mike S.

Phil · 6th June 2012, 09:15 PM

Jayson,
The uprights were used on a different chassis that I built, but the wheelbase was the same 95", and ride height was also almost identical, I would think no problem using those on a 40 chassis.
I actually contemplated changing my chassis over to these uprights, but didn't as I am so far into the build that I didn't want to go a few steps back as it were. I just may do the swap in the future, but right now she is where she is.
I am in the process now of switching my design over to a new steer rack, and I will let you know how that works.
Cheers
Phil

Jonesy · 14th March 2013, 07:41 AM

Hi guys,

Are these still a good option for the 40; i haven’t seen anyone running them. Also would you use the standard or 2" dropped spindle (suspension isn’t my area of expertise obviously).
Further; who does economically priced brake and hub kits to suit this spindle and 15 inch rim combination? I did a search but only found expensive big brake kits.

Basically I’m looking for an economical front suspension/steering set-up that would please the engineers; the more fabricated items the more hassle. Original plan was import vette c4/c5 complete front suspension, brakes etc which I have seen on GT40’s and would be easier for compliance but I’m told not the best dynamics and steals precious leg room; I’m 6ft.
Vette parts when i quoted it a few years back was about $1000Aus to Melbourne but was a complete package. The ProSpindles might be $375-475 depending on if I buy new or locate some 2nd hand and shipping costs etc
Alternatively I’m open to any other options available in Australia.
Cheers

mark b. · 14th March 2013, 10:18 AM

lefthander chassis has a pretty good selection at good pricing. i believe they have the materials to fabricate your own also.

https://www.lefthanderchassis.com/v2...dcategory=1312

Mackan · 14th March 2013, 05:11 PM

Quote:

Originally Posted by jonesy_sa

Hi guys,

Are these still a good option for the 40; i haven’t seen anyone running them. Also would you use the standard or 2" dropped spindle (suspension isn’t my area of expertise obviously).
Further; who does economically priced brake and hub kits to suit this spindle and 15 inch rim combination? I did a search but only found expensive big brake kits.

Basically I’m looking for an economical front suspension/steering set-up that would please the engineers; the more fabricated items the more hassle. Original plan was import vette c4/c5 complete front suspension, brakes etc which I have seen on GT40’s and would be easier for compliance but I’m told not the best dynamics and steals precious leg room; I’m 6ft.
Vette parts when i quoted it a few years back was about $1000Aus to Melbourne but was a complete package. The ProSpindles might be $375-475 depending on if I buy new or locate some 2nd hand and shipping costs etc
Alternatively I’m open to any other options available in Australia.
Cheers

Hi,
I am using the 2 inch dropped spindle on my 40 scratch build. The dropped spindle suits the 40 chassie pretty nice.
The geometry is good, lots of brake kits to choose from and the price is fair.

I bought them from Jegs and i allso bought a big brake kit for a mustang 2.
JEGS Performance Auto Parts - Holley - Billet Specialties - Edelbrock - MSD - Moroso - Mr Gasket

About the vette parts, these spindles are made for wheels with a lot diffrerent offset from GT40 wheels. If you are planning to use replica wheels, dont choose vette parts.

/Markus