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Interesting, though the place for the RR day is 1hr.30min away i might think about taking the Astra for Fun!
And i wont say there's no point in the "equal" shafts, but i looked at it and thought as i had a LSD i wouldn't really benefit from it, as theres pro's cons to it, and the con i decided was that your placing another weak point in the drive train with the extra CV, and this is opening room for more play/ware etc so i decided not to go for it, just my opinion though, if you have tried it and think it's better then thats cool.
Scott
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There isnt an extra cv Scott, just 4 as normal
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I was meaning the fact the dummy shaft goes into the CV on the one side and then theres the other side that accepts a shaft, i just thought having the two shafts inputting into it was worse then having the CV straight from the box etc.
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The dummy shaft really is just a spaced Cv tho, as the shaft is direct from the box to the cv, which means the shorter shaft meaning well movement for torque so to speak..
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Scott does have a point as the extra angle on the CV will increase stress on that side, but no more than the short shaft already, with it being equal length and all. It's not a bad solution to the problem really.
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Yeah not expecting miracles Scott as you say with the Quaife etc, just fancied trying it to get any possible improvements. As it's basically just 1/2 extra splined connections I'm not expecting to introduce any more weak points. :)
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Good call on the new shafts as it didn't tuck into corners at all well before :P
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As mentioned on the other page I was keen to get some alignment measurements and see what's what. With this in mind I bought a cheapy Gunson spirit-level-style camber gauge and a Sealey GA50 2 wheel alignment tool to play with.
So first off I set the toe on my Nova to 10 min toe out:
http://iainel.co.uk/images/forums/NovaWIP2a/519.JPG
Which according to the helpful calculator is about 1mm toe out (just over):
http://iainel.co.uk/images/forums/NovaWIP2a/520.JPG
First up I wanted to measure bumpsteer, so I measured the available thread and wound down the platforms to simulate the springs under full compression:
http://iainel.co.uk/images/forums/NovaWIP2a/521.JPG
One Nova on its bumpstops:
http://iainel.co.uk/images/forums/NovaWIP2a/522.JPG
Measured up toe and it came back as something ridiculous like 1 degree 30 mins toe out (does this sound feasible or possible?!?!) so I definitely think thats where its skittish handling is coming from. Also checked the arms and they're looking at a bit of a funky angle!
http://iainel.co.uk/images/forums/NovaWIP2a/523.JPG
On to camber and caster, I removed the wheels, put jacks under the lower arms/ball joints and lowered the car to its running height using some measurements I took before:
http://iainel.co.uk/images/forums/NovaWIP2a/524.JPG
Quick camber check on both sides, passenger:
http://iainel.co.uk/images/forums/NovaWIP2a/525.JPG
1.5 degrees negative camber, just what I wanted, winner!
http://iainel.co.uk/images/forums/NovaWIP2a/526.JPG
Drivers side only shows as having 0.5 degrees neg camber for some reason though?!
http://iainel.co.uk/images/forums/NovaWIP2a/527.JPG
Also measured the caster by turning the wheel one way 20 degrees, resetting the tool, then turning it 40 degrees to point in the other direction. This came back as 0.5 degrees positive caster on both sides which is nice, but not enough really:
http://iainel.co.uk/images/forums/NovaWIP2a/528.JPG
So measurements wise I think I'm now running:
1mm toe out
-1.5 deg camber LH side/-0.5 deg camber RH side
+0.5 deg caster
Plan is to buy some rosejointed track rod ends to invert the rods and try and reduce the bumpsteer, and maybe mod the topmount/turretss for some extra caster?
While the car was up in the air I decided to fit my new 10PSI low pressure oil switch too as I have no idea what the standard one illuminates the light at:
http://iainel.co.uk/images/forums/NovaWIP2a/529.JPG
No standard pressure switches left on the back of my engine now lol
http://iainel.co.uk/images/forums/NovaWIP2a/530.JPG
Constructive critisism/feedback/tips welcome regarding suspension geometry as I'm new to it all, as always I'm finding the best way to learn is to dive in head first. :)
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Awesome work on the toe and camber work, love how the steering arms are... You'll be amazed how long the ball joints last like that.. ;)
Having mm measurement on the tracking gauges is very handy, as min can be so hard to work out at times.
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Interesting work on the suspension settings.
The standard oil switch switches at something daft like 4psi.
LOL @ the angle of the track rods, and people wonder why things wear/ break with a low car lol
BTW is that Sealey tracking setup your own or have you borrowed it?
