Dans 240Z

Had a few things brake. Couple of snapped 280zx driveshafts and a couple of propshaft spider rollers have worn prematurely. I try to be gentle with the launches and slip the clutch a little. Preload the drive train if you can with the handbrake on. I went back to a traditional type clutch with a little give in it. Running a Z with loads of power is great fun but there a learning curve to keep things in one piece. You will find the weak points one by one and upgrade as required.

What sort of power do you think it's making?
 
I would think between 330 and 360 with the same torque at the minute... Not looking forward to breaking any driveshafts. :/ although I am using 300zx ones from memory.
 
I think the 300zx ones are stronger than what I'm using. A lot depends on luck as to whether you have a good or bad one from the batch.

That's a lot of torque which I think is why the v8's break more. I wouldn't go onto slicks just yet. Tyre slip helps to save the drivetrain. Charge the prop and see what the next weakest link is. Hopefully you won't break anything else and you have many runs ahead of you. I need someone to run against and not heard anything from Wyn lately.
 
Will do, it really couldn't put the power down though. Going to have to practice launching this a lot ...
I am looking forward to seeing your car run, been told a lot about it and only good things! Will be good to get us both on the track a few times and push each other

Dan
 
That's unlucky


Perhaps I won't go for an alloy prop then, don't want my prop being my only weak link as I'm pretty confident the rest of my drivechain will cope with my power fine. Although surely this only happens when you have an alloy prop that's not specced for the power/torque you are making.


Would love to go for a carbon prop, but who has that sort of dough to spend on a propshaft?
 
Should have been fine for the power - I don't think it has been sleeved correctly.

TBH it was a stupid idea trying to go lightweight - I read about people bending stock props on Trans Ams with the same power (these are aluminium also on some of the cars).

Given its length (around 38" from memory..) the weight saving was probably ****** all.

Carbon props are also not all they are made out to be, have to be very well balanced. Read a few horror stories...
 
My prop is just a run of the mill steel prop and I've had no problems other than the roller bearings failing. Your UJ's look bigger than mine so I would just get it remade in standard materials. Mine cost £120 to be custom made.
 
Sack that!

Nasty things going on there mate, must of been a little heartbreaking.
All the work and it's broke on the first run although on a positive note you did manage to have a little bit of fun on the way there.

I think I'll go full on strength metal lol.

I've got the propshaft of the VQ sitting in my garage and it's Carbon Fibre. I doubt I'll go down that route.

I suppose you've got to break some eggs to make the omelette!

I know you've mentioned torque figures but what do you think you're making bhp wise?
 
IbanezDan51 said:
It drove great... To the track lol

Aluminum props aren't as good as they say:



Nice to meet a fellow forum member today.. Shame I didn't actually get a run in :(
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that is well scary !!!!!!!!!!! looks like its made of plastic
 
I don't think its the fact its alloy, its more to do with it not being made correctly.

Dunning and fairbank in Leeds make very very good/strong/light props, all custom for not much cash at all.
 
franky said:
I don't think its the fact its alloy, its more to do with it not being made correctly.

Dunning and fairbank in Leeds make very very good/strong/light props, all custom for not much cash at all.
Click to expand...

Did the fabricate you one? If so, please do tell...
 
Although mine is ok at the moment, I would like to get another made. It could do with being an inch or so longer and I would like larger joints. Any recommendations of who to ask would be good.
 
Well I think in going to sack these off. I don't actually have a good word to say about Dave Mac and his gang. Drove all the way over here to go through with him and discuss alternatives and took two steel parts I could use instead of an alloy one. Spoke to them on the phone first and they told me to come down and speak with Jon, who when I got there didn't give me the time if day.

I've left my bits their but think I'm just going to pick them back up.
 
IbanezDan51 said:
Well I think in going to sack these off. I don't actually have a good word to say about Dave Mac and his gang. Drove all the way over here to go through with him and discuss alternatives and took two steel parts I could use instead of an alloy one. Spoke to them on the phone first and they told me to come down and speak with Jon, who when I got there didn't give me the time if day.

I've left my bits their but think I'm just going to pick them back up.
Click to expand...

They shortened my prop ok but a huge difference in torque and the task for them.
 
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