Peppy's Build Thread

[barnz]

I wonder why that is? Correct me if I'm wrong but given suspension travel/height has no bearing on shaft angle, how is every car different. The differences would have to be in the chassis or maybe even mounting bushes? So could flogged diff bushes introduce some tail shaft vibration? I don't really understand... are the tolerances to which these cars are built that bad?

[gaz097]

I think you would need a 15mm spacer when you fill the void in the Centre bearing.

Gibson's said to fill the gaps with a firm sikaflex to stop it breaking so easy.

It makes sense now why I got a vibration when I did this.

Because the tailshaft under its own weight sits down in the rubber bush but when held up by the sika it is know out of align. I would think 10-15mm sounds about right

[LU82]

I will be measuring pinion angles when I install mine

I wonder how much that's changes once under load with a comfort style bush?

[20pounds]

Im still on the zf build lol. Peppy did you have the 2-1 downshift bump before you built the box?

[Peppy_t92]

I believe it's more to do with the bushes Barnz, our cars are full of bushes, and people rarely change then all at once? So that could take up a little for each one, or similar... But yea now you mention it Gaz, Chris did say something about sikaflex in the centre bearing... LU82 you would assume that there would be some movement in the cradle with the comfort style bush,10-15mm maybe, not sure what that would work out to in degrees over the length of the shaft...

Hey 20pounds, no I don't believe I ever experienced the 2-1 bump

[al10s]

Hi peppy,mine was done on his new balancing machine.Hopefully be ok this time around.

[xr6tForMe]

Hi peppy,mine was done on his new balancing machine.Hopefully be ok this time around.

Has it been fixed?

Do you know what was done to it?

[al10s]

Got the car back from CMS yesterday,they had sent the shaft back up to Chris @ Gibson s. Not sure what was done to it,but it s all good now.Mines a sedan,

[Peppy_t92]

Hey Guys,

I got my Gibson Shaft on Tuesday, and it looks the goods, I was so excited I didn't take any pictures, it's larger in diameter, bigger Uni's, sikaflex on the centre bearing and and marble painted haha..

I used my iPhone as a level, sat it against the flange on the transmission and zeroed it.. Once I installed the shaft I placed it against the bottom edge of the first half and it read exactly 90* then placed it on the second half and it read 91* so the first half is true and the second has a 1* angle, this was with the rear ended elevated but the rear wheels sitting on ramps, so essentially as it would be in normal driving conditions... No packing was used on the centre bearing.. Only issue was that I was sent imperial bolts for the rear flange to diff, so they screwed 3/4 into the diff before getting tight and not moving any further, so I got some high tensile 10x1.5 30mm bolts and all good

As for the drive, no complaints, still fark all timing and 0 wastegate duty cycle, it's useless taking it any further on the street as it just unloads as soon as boost comes on in 1,2,3,4 even over 100kph... I really am over the moon with the car

[k31th]

video's of "unload"ing