Prototype Driveshaft
Prototype Driveshaft
Author
Discussion

EmmaJ

Original Poster:

4,525 posts

177 months

Friday 9th May 2014
quotequote all
Hi Guys,

I thought I'd start a thread to document my testing of a prototype driveshaft that's been fitted to my Monaro by Monkfish.

In principle the new shaft is similar to others already on the market being thicker than the stock drive shafts this cancels out the harmonics that cause axle tramp. The extra benefits of the MF driveshaft are that it comes with good quality CV joints and is sold as a single item. My reason for wanting this isn't to build a stronger drive train but to stop the dreaded axle tramp.

My main issue isn't that my Monaro axle tramps the whole time. I never usually have an issue under burn-out conditions when the rears are properly overwhelmed, my issue typically occurs when on or slightly above the threshold of wheel-spin.

I had the shaft fitted yesterday and on the drive home even though the roads were drenched with loads of standing water I was able to provoke wheel-spin in a variety of circumstances and based on my initial drive it's all but eliminated my axle tramp except for the most extreme cases of provocation. Given that my engine moves a significant amount under WOT due to the extra torque and also has a modified propshaft which only has one rubber doughnut rather than 2 on a stock setup I wouldn't be surprised if this new MF driveshaft completely eliminated axle tramp on a stockish setup.

I'll continue to test and report back once I've found some dry roads to conduct some more "testing" on. Any donations towards my increased usage of MPSS's will be gratefully received hehe

Edited by EmmaJ on Friday 9th May 17:02

SturdyHSV

10,443 posts

198 months

Friday 9th May 2014
quotequote all
Interested to hear how you get on smile

Mine can still do it occasionally, presumably my BMR one would undo a lot of the beneficial difference in size provided by the MF one?

Wyld Stallyn

2,056 posts

159 months

Friday 9th May 2014
quotequote all
woohoo

EmmaJ

Original Poster:

4,525 posts

177 months

Friday 9th May 2014
quotequote all
SturdyHSV said:
Interested to hear how you get on smile

Mine can still do it occasionally, presumably my BMR one would undo a lot of the beneficial difference in size provided by the MF one?
Very good question. I don't have the size differential between the stock and prototype shafts but I'm sure Roger will be along shortly....

007 VXR

64,187 posts

218 months

Friday 9th May 2014
quotequote all
I have G Force ones fitted to mine by MF, 100% no tramp biggrin

EmmaJ

Original Poster:

4,525 posts

177 months

Friday 9th May 2014
quotequote all
Wyld Stallyn said:
woohoo
Didn't think you drove yours hard enough to provoke axle tramp hehe

getmecoat

S800VXR

5,877 posts

231 months

Friday 9th May 2014
quotequote all
007 VXR said:
I have G Force ones fitted to mine by MF, 100% no tramp biggrin
Yes but did Roger not have to do work with them to make them work and be reliable. Spoke to him about these some time ago and ive been waiting for something to come to light. Will need to find out more tomorrow.

EmmaJ

Original Poster:

4,525 posts

177 months

Friday 9th May 2014
quotequote all
S800VXR said:
007 VXR said:
I have G Force ones fitted to mine by MF, 100% no tramp biggrin
Yes but did Roger not have to do work with them to make them work and be reliable. Spoke to him about these some time ago and ive been waiting for something to come to light. Will need to find out more tomorrow.
+1 They are far from stock G Force shafts from what I understand as well.

jameshsv

5,844 posts

191 months

Friday 9th May 2014
quotequote all
EmmaJ said:
+1 They are far from stock G Force shafts from what I understand as well.
What is the cost emmaj

007 VXR

64,187 posts

218 months

Friday 9th May 2014
quotequote all
EmmaJ said:
S800VXR said:
007 VXR said:
I have G Force ones fitted to mine by MF, 100% no tramp biggrin
Yes but did Roger not have to do work with them to make them work and be reliable. Spoke to him about these some time ago and ive been waiting for something to come to light. Will need to find out more tomorrow.
+1 They are far from stock G Force shafts from what I understand as well.
You will have to ask Roger what he did, i just payed the bill with a smile hehe

iirc the CV joints were changed ?


Edited by 007 VXR on Friday 9th May 18:26

Granby

2,473 posts

246 months

Friday 9th May 2014
quotequote all
Thats good to hear, can't wait to get mine replaced as the axle tramp does my head in rolleyes

EmmaJ

Original Poster:

4,525 posts

177 months

Friday 9th May 2014
quotequote all
jameshsv said:
EmmaJ said:
+1 They are far from stock G Force shafts from what I understand as well.
What is the cost emmaj
I've not bought the driveshaft I'm currently just testing it. Assuming I can't break it and it works in the dry as well as it does in the wet then Monkfish will want paying for it in due course.

I did ask for indicative costs and a figure of around £500 quid was mentioned. Don't forget this is only a prototype at this stage and pricing will no doubt be influenced by the number of units that are made whistle

mikeyb1987

2,358 posts

185 months

Friday 9th May 2014
quotequote all
If anyone could test for axle tramp, it would be you Emma hehe

I'd certainly be interested in one of these smile

ARAF

20,759 posts

254 months

Friday 9th May 2014
quotequote all
mikeyb1987 said:
If anyone could test for axle tramp, it would be you Emma hehe
You think Mf didn't factor that in, when deciding to fit it to Emma's car? laugh


Keep the forum updated Emma. cool

stigmundfreud

22,454 posts

241 months

Friday 9th May 2014
quotequote all
emma the ro is always going to suffer from axel tramp without replacing the rear end of the car

mikeyb1987

2,358 posts

185 months

Friday 9th May 2014
quotequote all
ARAF said:
You think Mf didn't factor that in, when deciding to fit it to Emma's car? laugh


Keep the forum updated Emma. cool
laugh if it's engineered to last on Emma's car, it'll be more than sufficient for mine!

As Ian said, keep us updated Em thumbup

EmmaJ

Original Poster:

4,525 posts

177 months

Friday 9th May 2014
quotequote all
stigmundfreud said:
emma the ro is always going to suffer from axel tramp without replacing the rear end of the car
That's as maybe but given the reduction others have reported with G Force / BMR shafts having a home grown alternative that can be bought as a single shaft with good CV's can only be a good thing. Based on my initial testing I'm very happy with the positive difference this prototype driveshaft has made for me... smile

stigmundfreud

22,454 posts

241 months

Friday 9th May 2014
quotequote all
I'd read at the time about the improvements so anythings going to be better and this new MF doodarr sounds a good move.

TheLeatherman

322 posts

196 months

Saturday 10th May 2014
quotequote all
The uprated single shaft trick has been used for ages as we all know. But tramp in itself is also due a lot to the suspension set up.... well that's what we found in OZ in any case.

Cheers

Leatherman

gsd2000

11,515 posts

214 months

Saturday 10th May 2014
quotequote all
TheLeatherman said:
The uprated single shaft trick has been used for ages as we all know. But tramp in itself is also due a lot to the suspension set up.... well that's what we found in OZ in any case.

Cheers

Leatherman
How did you overcome tramp with your 10 second ute?