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Posted: Thu Jul 22, 10 11:22 am
by Jon Connolly
help for heroes is this weekend cav ... so i told them no
pete ... might be more hassle than it`s worth ???
Posted: Thu Jul 22, 10 8:46 pm
by Anonymous
Jon Connolly wrote:
Wash + polish
Then ready for pairing up with some of them B/B boys
Good luck Jon , will make sure i'm two cars back on fire up lane.
Posted: Thu Jul 22, 10 9:57 pm
by Jon Connolly
Adam
I`ll be a couple of rows back from you ... watch you run your 9.8 then pedal this hard for a 11.7 ish
Posted: Fri Aug 06, 10 5:29 pm
by Jon Connolly
Lightweight alluminium Mustang 2 rack and pinion steering going on now with fabricated 9/16 rod ends and new handed rose joint sections each side.
This will mount via 2 welded outriggers from the existing frame rails and be installed with nylon bushes. Steering colomn will have a uj so rack can be installed in the correct plane.
Am reusing the existing Mopar lca and uca and limiting the extent of front shock travel to keep the steering geometry in the right place ( the front should then lift and keep the wheels in the correct position rather than using up all suspension travel before lifting)
Also swapping out cast brake master cylinder for Wilwood alluminium / plastic cylinder.
Posted: Fri Aug 06, 10 6:19 pm
by Pete
Interesting, Jon.
How do you propose to get the akkerman (sP??) angles correct with this set up?
We will follow suit is if works OK
Posted: Fri Aug 06, 10 6:37 pm
by Blue
I'm not so sure limiting the front suspension travel is a good idea Jon. You normally do that when you are already lifting the wheels a good amount. Calvert recommend a minimum of 5" front suspension travel with Caltracs, you might find that limiting travel will just keep the wheels planted on the deck, cocking up your weight transfer. By all means try it, but I would avoid designing the system so it has to work that way.
Posted: Fri Aug 06, 10 9:39 pm
by Jon Connolly
Blue ... you`re right, that part of my set up works well, I like the Caltrac system and there isn`t any point changing it
Pete ... I`ll post pics as I go, it`s in my head at the moment. I think the key to it is getting the rack in exactly the right place ( i.e. height from ffl )
Posted: Fri Aug 06, 10 10:02 pm
by andyrob
jon get some good advise before you fit the rack, or you'll end up with 'bump steer' which is sicence inself, which i dont understand, moving a rack up of down an inch can cause this making the car undrivable,so change to rack & pinion is a hugh differnce do some
Posted: Fri Aug 06, 10 10:07 pm
by Pete
I do know that swapping spindles/bottom ball joints from one side to the other (whilst looking like a quick and cheap fix) totally cocks up the steering geometry.
Posted: Mon Aug 09, 10 9:00 am
by Dave999
if you still have a K frame
all the hard work has been taken out
if you don't then i guess you could nick some of their ideas
http://www.elkoperformance.com.au/store ... oduct=1160
yes they do em for LHD
Dave
Posted: Mon Aug 09, 10 9:26 am
by AllKiller
Posted: Mon Aug 09, 10 11:52 am
by Jon Connolly
Had another good look at this this morning
Am confident .. will post up photos as I go
Posted: Tue Aug 10, 10 10:25 am
by Anonymous
Hi Jon,
Good times there fella, why's your MPH that low???
Bacca ever so slightly jealous, now lagging behind at 10.66@131
(New plan needed for an 8.99, get a Nova like Craig, with a Shafiroff 572 and give Mr.Hauser loads of money to sort it???)
Bad plan as I don't like Chevvies and I aint got no money, so its back to the drawing board methinks???
Posted: Mon Aug 16, 10 3:39 pm
by Jon Connolly
Mustang 2 rack and pinion wouldn`t fit due to being a " pusher " v`s a " puller ". Could have fitted it way out front and turned the bottom ball joints around so they faced forward and picked up on those, but would have been a P.I.T.A.
Have now got a Lotus rack and pinion narrowed which sits on an oval section steel tube dropped frame welded onto each chassis rail. Final connection will be via rose joints and have the option of top or bottom mounting on the existing ball joint aperture to get that final 1/2" of up / down adjustment.
Have made an adjustable suspension travel limiter also ( not in photos ) to allow the suspension to travel anywhere from 2.5" to it`s maximum of 4.5" to try to limit the overall arc of bottom ball joint travel. This can be completely bypassed if it hinders the launch.
Plenty of weight has come off and everything is in the right plane at all stages of front suspension travel.
Will try it out at HRD`s
Posted: Mon Aug 16, 10 3:43 pm
by Pete
Jon Connolly wrote:Mustang 2 rack and pinion wouldn`t fit due to being a " pusher " v`s a " puller ". Could have fitted it way out front and turned the bottom ball joints around so they faced forward and picked up on those, but would have been a P.I.T.A.
That's when the Ackerman angles go out of the window.
Good solution, do you think there would be enough sump clearance for a BB installation?
Keep at it!!
Pete