Turbo project continues...

[Gixer1460]

Yes would spool quick but soon choke itself. My first T2 came from a 1900cc diesel - max boost @ about 3500rpm but just wouldn't make anymore power - flat as! As to numbers - Turbine A/R 0.48 worked on mine but the turbine wheel was not the same it started with so it's a of bit guesswork!

[Mark]

Crude i am aware, but the new rear wheel needs to wait until payday.. but that centreing looks pretty promising to me. the subbie is pretty acurately centred for reference. 

[Gixer1460]

Am I missing something as that VFR / tyre combo looks to be 2 - 3" off to the left?

[Mark]

Yeah. Thats the reasoning for the frame widening. 

The arm is offset to the left, and it still has the triumph wheel on with 190mm tyre. The tyre crudely offered up above is the intended 240mm. I havent yet sourced a wheel. 

But the tyre lined up with the left side of the existing wheel (to maintain the same as current wheel/tyre to sa clearence) looks pretty central too me. And well within tweaking capabilities to fit the larger rear inline.

[no class]

So we have a classic "eye ball" build have we ?

[Mark]

The measurements all add up, stringline from the headstock lines up nicely, but proof is in the fitting, that cant happen without the wheel. 

So a reassuring eyeball is the best i have atm!

[no class]

Well ..... as long as you don't have Marty Feldman eyes .

Edited December 3, 2018 by no class

[Gixer1460]

4 hours ago, Mark said:

The arm is offset to the left, and it still has the triumph wheel on with 190mm tyre. The tyre crudely offered up above is the intended 240mm. I haven't yet sourced a wheel. 

But the tyre lined up with the left side of the existing wheel (to maintain the same as current wheel/tyre to sa clearance) looks pretty central to me. And well within tweaking capabilities to fit the larger rear inline.

Yeah - understand the reasoning but are we agreed that the wheel needs to be central which will require quite a bit of in / offset of the hub to match up with the bike hub. Which throws up another problem - the extra load due to the offset on the bearings which you can't move!

[Mark]

Yeah agree, but the wheel im looking at has an offest meaning i should only need a 10mm spacer between my standard swingarm hub and my wheel inner face.  

So minimal extra stress i feel. And i reckon less than it gets if sticking with the 190mm and thrown around a track. 

[Askamaskinservice]

3 hours ago, no class said:

Well ..... as long as you don't have Marty Feldman eyes .

What could possibly go wrong, just do it.

Br, Hasse.

[no class]

2 hours ago, Mark said:

Yeah agree, but the wheel im looking at has an offest meaning i should only need a 10mm spacer between my standard swingarm hub and my wheel inner face.  

if your inner frame  clearance is 290mm and your tire is 240mm …..with the wheel in center …..you will have 25mm per side . factor in the chain width  (530 chain is roughly 25mm ) then add 3mm for chain to frame and tire to chain clearance ……..your wheel alignment will be slightly out but not anything to worry about ……… the only  issue I can see is the rim / tire to inner swingarm clearance ……..this will determine your offset .