As usual you always crack on and don't let bad shit get you down. Nice one mate :thumb:
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As usual you always crack on and don't let bad shit get you down. Nice one mate :thumb:
Compression test results after mini rebuild?
http://www.wcengineering.com/article...ompression.jpg
https://lostcoastoutpost.com/media/u...b7c5efc696.jpg
It has some.
And some dirty diesel smoking!! Just adds to the shonkiness!!!Quote:
Originally Posted by Iain
Oooooooooh Harvey knows something about this bodge!?!!?!?!?!?
Mallory Park yesterday, 27 May 2016.
Myself, House and our new Team Shonky recruit Harvey all booked onto a Javelin open pit at Mallory. We'd all never been, and it was a great little circuit which looks boring on paper but technical and quick when out there.
http://www.motorsport-events.co.uk/n...lory-large.jpg
We booked some pit garages and used a load that weren't in use, so took over the place.
http://iainel.co.uk/images/forums/NovaWIP2b/303.JPG
Got some great track time in, sometimes busy but lots of space too. Team shonky on track
http://iainel.co.uk/images/forums/NovaWIP2b/304.JPG
http://iainel.co.uk/images/forums/NovaWIP2b/305.JPG
Then changing from 5th to 2nd for a hairpin resulted in a funny noise and no drive
https://www.youtube.com/watch?v=0-KA...ature=youtu.be
I eventually got bored of sitting there and the marshalls not red flagging the session, I sat there for ages so eventually got out and took a nice photo from up the bank to amuse myself:
http://iainel.co.uk/images/forums/NovaWIP2b/306.JPG
Cracked on with repairs:
http://iainel.co.uk/images/forums/NovaWIP2b/307.JPG
How many people does it take to remove a stubborn CV circlip lol
http://iainel.co.uk/images/forums/NovaWIP2b/308.JPG
All sorted, play resumed, lets go kick it's ass again:
http://iainel.co.uk/images/forums/NovaWIP2b/309.JPG
http://iainel.co.uk/images/forums/NovaWIP2b/310.JPG
http://iainel.co.uk/images/forums/NovaWIP2b/311.JPG
Engine survived, so great news there. I have some suspension upgrades planned and really need to learn to heel toe to reduce the strain on the CVs.
Couple of clear laps at the end, I know my lines aren't perfect especially hairpin
https://www.youtube.com/watch?v=pamZpGK8264
And some high speed tripod action
https://www.youtube.com/watch?v=sRfSwZd_lZc
Love it and very jealous of your day out, thanks for the videos though as I feel like I've had a joyride with you lol
The Astra looks tidy ;)
The Astra is very tidy, but engine issues shortly after fitting his Shonky sticker meant he fitted right in lol
New sticker needed:
Shonky build quality... enjoy it!
Proper shonky, atleast your wheel didn't fall off!! hahaha
Epic day, Team Shonky Vauxhall are the best.
Looks like a awesome day.
Very good confident driving too. Nice tripoding.
Really amazing the diference between trackdays at UK and here...
Please elaborate?!Quote:
Originally Posted by zeifer33
You know I love your tripod <3
the most nearby circuit to me is only an 1h by car, ok, and we have 1 maybe 2 event per year, and the event day is easy find 80/100 cars. Well, 80/100 furious monkeys burning wheels jajajajja.Quote:
Originally Posted by House1983
When I see these track vids, seems like race heaven, jajajaja
^^^^ Rubbish!! Atleast UK trackdays have some sort of order!!
So why do I always blow inner CV joints on the passenger side?
First off wind down the spring platform so I can achieve 'compressed state' position of the left suspension:
http://iainel.co.uk/images/forums/NovaWIP2b/312.JPG
Jack it up (using one of my old destroyed pistons lol) to simulate bump or hard braking squat, check the shaft angle:
http://iainel.co.uk/images/forums/NovaWIP2b/313.JPG
Inner CV replaced with a brand new greaseless one, it doesn't *look* that bad on the face of it:
http://iainel.co.uk/images/forums/NovaWIP2b/314.JPG
But measuring where the ball sat at the bottom showed it was quite far in on the inner race:
http://iainel.co.uk/images/forums/NovaWIP2b/315.JPG
Mock up spare ball bearing to show where the measurement means it sits:
http://iainel.co.uk/images/forums/NovaWIP2b/316.JPG
Which explains why it munches itself with damage like this (this one's from Mallory)
http://iainel.co.uk/images/forums/NovaWIP2b/317.JPG
I'm investigating a 10mm longer shaft, which I can hopefully have in prior to the next trackday...
I'll be at PV show tomorrow if anyone wants to come over and say hello.
You could have grooves machined +8MM at each end of said shaft effectively making it 16MM longer like I did. ~ I'll have to post a picture of a hollow shaft when back from shot peening.
Darn Novas, what a faff.
Nice write up & hopefully a longer shaft will stop you breaking it.
I'll be at PVS but I won't be saying hello to you
16mm may be a little too long. Did some basic maths to put the balls in the middle. 8mm at one end may work but would have thought it weakens it as much less going into the CV?Quote:
Originally Posted by BRoadGhost
The back up plan is a spacer behind the CV to push that in a few mm.
Sent from my GT-I9300 using Tapatalk
When you look how far the shaft end protrudes once located on the standard groove, you'll see it was never right to begin with :0
Nice detective work. I hope a longer shaft fixes the issue.
@Iain , Are you using the camber plates to get a better angle on the GAZ Coils as I cant lower my springs as much as yours as otherwise they start rubbing in the tyre and the wheel, do you have the same issue as well ?
I run a 7" open spring to clear the tyre it sits just above the tyre.
Edit: I'm going to order some 6" for my next spring choice to have plenty of room
I always ran a 6mm thick washer on the inside of the hub to stop the excess plunge on my Nova. Wasnt running anything like the power you are though..
Paul..
Good info Paul cheers, these shafts were custom made for me based on some other existing shaft dimensions so if I can it makes sense to fix it "properly" with a longer shaft. Seen a 10mm spacer on eBay meant for Saab converted Astras but would run into issues with the split pin hole there.
Do it properly, new shafts.
Hi, in my nova rally car I have to put spacers on the inside of the hub to stop the excess plunge. You have to do this on the harry hockley F20 shafts that i have fitted. You remove the coil spring and put the suspension through entire travel and measure the plunge. It should be between 18mm and 12mm at all suspension travel. Any more than this and the inner CV will run to far out, any closer then you run the risk of bottoming out the CV and destroying the diff.
Decent info, you can plan the shaft length now!!!Quote:
Originally Posted by Novarally140016v
Thanks sir. Is that measured to the centre of the ball bearing and from the outer edge of the inner race? My measurement was about 21mm I think I remember.
Sent from my GT-I9300 using Tapatalk
the easiest way to measure it is have the driveshaft fitted to the car, with all the suspension geometry set up as you are going to use it. Undo the driveshaft nut and push drivehshaft all the way in till the inner CV bottoms out. Using a vernier measure the distance from the end of the outer CV to a point on the hub. Then tighten driveshaft and measure the same distance. The difference between the two is the plunge.Quote:
Originally Posted by Iain
I hope this makes sence?
Kinda does. So the two measurements should be within 12-18mm ideally. I suspect mine will be a lot more than that. This is all applicable to big block CV?
Sent from my GT-I9300 using Tapatalk
not exactly. The actual numbers do not matter the difference between the driveshaft pushed fully in and the driveshaft nut tight should be between 12 to 18mm.Quote:
Originally Posted by Iain
Thanks for the info. Also found a thread on Mig where Chris Astley mentions 15mm. Where did these numbers come from?
I've measured the inner CV total available travel as 40-42mm.
Drivers side is 22 mm at full droop, 25 mm on the bump stop and 26 mm at sitting height. This one has never posed an issue.
Passenger side that pops is 34 mm at droop, 40 mm on the bump stop and 39 mm at ride height. (Edited from 26 at droop hence comments below)
From this I suspect a 20 mm longer short shaft would be ideal based on 40 mm available travel unless anyone can justify the 12-18 mm measurement.
I was told the numbers 12mm to 18mm by Harry hockley Motorsport.Quote:
Originally Posted by Iain
Are you running the same suspension geometry both sides?
14mm difference on one side to the other seems a bit excessive, considering you have 4mm difference on other side from full droop to bump stop?
I would not be making the shaft 20mm longer, you need a minimum of 12mm otherwise you risk the driveshaft bottoming out which will destroy the diff.
Am I not right in thinking that, if the CV has 40mm of available plunge you would want to see a max of 20mm plunge whilst at normal ride height, this would put the race in the middle of it's available travel and able to move 20mm out and also 20mm in?! So if Iain has seen 39mm at ride height then the CV is almost at it's outer limit of travel and isn't able to come out any further and this explains it's disintegration.Quote:
Originally Posted by Novarally140016v
If the shaft is 15mm longer, then the plunge at ride height would be 24mm putting it nearer the middle of the available travel, would it not?!