Edited the numbers no idea where I got 26 from.
So with a minimum of 34 a 20 mm longer shaft would indeed be fine.
Printable View
Very poor quality photos, for which I am sorry. Both cameras dead.
After Mallory I noticed some wear on the outer edge of my slicks. Better geometry needed. Problem was I couldn't really do much on my current set up.
New kit arrived in the post:
http://iainel.co.uk/images/forums/NovaWIP2b/318.JPG
Old kit off. Spec was strengthened bottom arms, one piece SuperPro bushes, spherical bearing tiebar brackets, GSi ARB with Powerflex bushes.
http://iainel.co.uk/images/forums/NovaWIP2b/319.JPG
New kit on, it's all a direct fit bar the bottom arm hole which needs enlarging to 1/2" (is about 10mm standard I think). This can be drilled out with the engine fitted handily.
http://iainel.co.uk/images/forums/NovaWIP2b/320.JPG
With new Lemforder ball joints (available from EuroCarParts/CarParts4Less)
http://iainel.co.uk/images/forums/NovaWIP2b/321.JPG
Some caster can be gained with this kit, as can be seen by how far forward the wheel is:
http://iainel.co.uk/images/forums/NovaWIP2b/322.JPG
DIY turn plate made up for geometry set ups and caster measurements, thick steel plate with grease inbetwee and skateboard griptape on top:
http://iainel.co.uk/images/forums/NovaWIP2b/323.JPG
20 degree markings added, so I can lock the wheel from 20 degrees left to 20 degrees right:
http://iainel.co.uk/images/forums/NovaWIP2b/324.JPG
I extended the lower arm fully but still did not gain the camber I needed, so I've filed more of the turrets and brought the eccentrics further inwards.
Before:
http://iainel.co.uk/images/forums/NovaWIP2b/325.JPG
After:
http://iainel.co.uk/images/forums/NovaWIP2b/326.JPG
This has put me just shy of 1.5 degrees camber on both sides, about 2 degrees positive caster (this sounds low based on the tiebar being fully wound in, so either I've measured wrong or I'm miles off getting the targetted 4 degrees?). I'll reset the toe back to 1mm toe out and test drive it.
Booked onto Cadwell Park 8th July which will be a good test for it.
Thanks to Ben at 'Hangar 30' for the suspension arms and pre/during/after sales service and abuse. lol
Nice piece of kit Iain. where did you buy from? been looking into this for mine. How come you staying with the standard ball joints?
why do you want 4 degree of camber? that much camber results in less traction on the straights. the thing you want to gain is caster, more caster results in more camber in corners and that's the place where you need the camber ;).
Guy called Ben, PM me if you want his contact details. It's the same kit Jonlem was selling a while back.
I don't know what I've got to gain from uniballs in all honesty, they don't give any more adjustment and cause grief with big block outer CVs and their retention nuts.
Nice bit of kit :) Can't wait to see how it improves on track performance.
Looking good iiiiiaiiin, will it take some setting up to get right on different tracks you race at?
Wear on the outer edge means it's rolling over the outside edge of the tyre and not using the full contact patch. Do you seriously think you'd wear a tyre perfectly evenly on a track on standard suspension?
He just wanted an excuse to buy it!!!
Anyway, wear on the outer edge is caused by a lack of camber and caster, meaning the tyre is riding onto the outer edge during cornering and as Iain says not applying the full contact patch to the track surface.
This would happen on standard suspension also, it would in-fact be worse on standard suspension, the only way to solve it is add camber and caster, either with eccentric top mounts or the aforementioned suspension set-up.
With the addition of either of these 2 things mechanical grip would be vastly improved, the suspension kit more so.
Does look good on yours!! I was gonna get a similar kit but you didn't want me to copy you.
Just keep a spare set of new ball joints in the track day box, cheap, easy to change. win win
http://www.santafegarage.com/precisi...ber-explained/
interesting read
i didnt say on track, having perfect tyre wear is what people desire on road cars, which means comprimising on handling and performance.
wear on the outside edge doesnt only mean its rolling over, is your track set up to toe in? all circuits are differant and are going to affect the tyres in ways you wont be able to foresee unless you use that particular circuit often. I mean look at the F1, they practice all day friday, qualify on the saturday and still can get undue tyre wear on the sunday.
I'm not far behind F1 in terms of my vehicle set up capabilities.
It's set up slightly toe out. It was previously 0.75 degrees camber and not much caster, now it's at 1.5 degrees. The competition build manual says to run more camber than I was, and am, doing. The Michelin slick manuals also suggest more too from what I remember.
I've been using these slicks on track for years so I'm optimistic I'm doing the right thing. And if it doesn't work out too well, I can dial it back in a bit, no biggie.
I bet you are glad you took the time to update the thread now Iain.
fair enough, whats your rear set up to?
when I eventually get round to sort my geo. out I may buy the tie bar set up from ben as my front caster while being slammed is uber poor.
http://i193.photobucket.com/albums/z...pstzzqibfs.jpg
http://i193.photobucket.com/albums/z...pscjvhclzn.jpg
My rear is 0-30 minutes neg camber depending on the side, and approx 40 minutes toe in. Thanks for the pictures, I was slightly concerned about the rear toe but looks like yours is pointing quite a bit inwards too.
put washers under two of the wheel bolts, It'll give more cambers and toes.
Love them arms kits. Does Jonlem not make them anymore?
Really love the homemade slide plates. Very god thought, making setup easy.
Looking good Iain
Il just sort you out a Nova shell instead if that's OK.
Seriously though, enough with all the negativity (no pun intended). You can count on one hand the number of Nova's on this site that actually get used on track, those owners generally know what does and doesn't work.
It's slightly more important to get the thrust as low as possible than to get each side perfect front back
Don't think I can do thrust angles with my crappy single axle alignment gear, it's been a while since it was 4-wheel set up lol
Initial test drive is VERY good, it aggressively self centers the wheel and turn in is so much sharper and precise.
Going to order some higher poundage springs and take them to Cadwell on 8th as suspect it would benefit from being a bit stiffer now I don't have a front ARB.
Glad to hear it. have a drive at Cadwell, then get the rear shimmed and toeing out a bit for the next day, see what you prefer.
I've never made them, just sold them as Ben who makes them ( owns red nova I've posted about ) was employed working for someone and I just dealt with supplying them as he never had the time, he has now set up his own business doing fabrication etc.
Good to see the cars going well Iain
Cheers Jonlem, Ben seems easy to deal with so will probably get some more custom in the near future.
So I went to Cadwell on the 8th July. It was a glorious day.
Final bit of trackday prep was to stop my inner CV exploding with the use of a (temporary) 10mm plunge spacer from Hockly
http://iainel.co.uk/images/forums/NovaWIP2b/327.JPG
Sits on the CV like so:
http://iainel.co.uk/images/forums/NovaWIP2b/328.JPG
And it totally worked. No CV explosions and red flags caused by me!
Onto the trackday, we arrived late afternoon on the Thursday and set up camp, hiding my BBQ from the wind with bins lol
http://iainel.co.uk/images/forums/NovaWIP2b/329.JPG
Then after some burnt vegetarian burgers we went for a romantic walk and discussed racing lines like we actually knew what we were doing lol Ah well it fooled us lol
http://iainel.co.uk/images/forums/NovaWIP2b/330.JPG
The sun was setting over Cadwell Park and the atmosphere was romantic to say the least.
http://iainel.co.uk/images/forums/NovaWIP2b/331.JPG
The morning view from my Tent-a-Volvo, oh dear not quite so nice:
http://iainel.co.uk/images/forums/NovaWIP2b/332.JPG
It soon filled up with a variety of cars:
http://iainel.co.uk/images/forums/NovaWIP2b/333.JPG
All was well, we were both lapping well and no mechanical problems all morning.
At lunch House went off to feed himself while I pretended to know what I was doing again, and swapped out my front springs from 325lb/7" to 375lb/6":
http://iainel.co.uk/images/forums/NovaWIP2b/334.JPG
The difference was great. Having lost my front ARB, the extra poundage kept the car a lot more level. Toe was (roughly) maintained by measuring from the floor to a set point on the arch and adjusting the platform to be the same with the new springs.
I got my moneys worth out of this set of slicks but I'm now due a new set lol Just ordered some more of the same, Michelin S9C part worns:
http://iainel.co.uk/images/forums/NovaWIP2b/335.JPG
If the video linked below isn't exciting enough, here's an inevitable fail. The wheel wasn't quite centered on the way back to the pits after this, so I hope it's just toe settings and nothing worse!
Camera dropped so dodgy white balance unfortunately
https://www.youtube.com/watch?v=rslRTnYMkU0
I have tonnes of sensible video footage, but this is some of the more interesting driving (probably sloppier lines too but oh well lol)
https://www.youtube.com/watch?v=Pdcaar93xx8
I quit
Team Shonky now hiring spaces available
Ummm vegetarian? Do I need to reserve space on the BBQ?