E319 JOO

i'll have to talk to will about it as it is'nt at my workshop.the rear bumper needs dropping to remove the gta unit and then some mods to fit the A610 one

They do look well in fresh gleaming White
Nice job as per Andy .

just about finished see you next week will.

Awesome mate!

well done will for making this into a minter, i love the colour and i realy like the motor sport look just needs a set of compermotive mo6 wheels and it would look hard as nails!!
Andy top work as ever, top job!

"a set of compermotive mo6 wheels"

what do they look like?

Needs engine and box back in first! up rated A610 intercooler installing along with a europa cup spec radiator, need to fit the new turbo as well then a complete remap to match new injectors and turbo and I am running Renix as well and not aftermarket so that won't be easy!!! Faulks is managing that department

I could also do with a new steering rack, hopefully Stephen is going to hook me up with one of those from club stocks, i'll need a decent club discount!!

lots to do! but the paint is making feel really good about the car, Andy has done sterling work as usual!

Looks great! Congratulations

Another stunner by Andy.

I am sure you are happy with that Will.

[Alpineandy]

I think these are compomotive mo6 wheels

They are MO5's very similar but the MO6 has an extra spoke. Here is a pic of a set with some dish on the back

Hey Will

Car looks absolutly gorgeous!
Go back and have a look at the first pic, unbelievable, i know how much work this is!
Pleeeease fit the wheels above imagine how that looks!

Looks good top Job !

Well I have finally got round to sorting the parts for Will's turbo upgrade, and think I'm there now... rebuild to start soon.

So here are some pictures of the original component parts and commentary.

The turbine was a standard spec T3, and from the picture working close to its thermal limit. This was known mainly from the back pressure on the engine, and hitting a choke flow at high rpm limiting the engine’s breathing capability. The compromise challenge is to reduce the back pressure, allow higher boost without generating excess heat, and retain fast spool response given Will’s main aim of hill climb motorsport. Plus the over arching requirement – keep cost down, so T3 plain bearing DIY rebuild technology is it.



As you can see nice colouration, but close to the edge. So having mulled things over, I have decided to keep to a T3 turbine, but a phase III version, still 11 blades, back cut, and larger tip height. This last aspect is important, as one of the olde golden rules is to keep the wheel diameters between compressor and turbine less than 20% due to losses and compressor slip factor.

Old combo:



New combo:





Will’s original hybrid was one from some time back, and was setup with a T3 compressor 18% larger than turbine, and know compressor map. However looking at where Will is looking to go boost wise, the efficiency is down at 60% at best, so generating excess heat that has then got to be removed by limited inter-cooling as we all know. So an upgrade on the compressor is essential as well, noting trying to keep the inertia (mainly diameter) and overall mass down.



Both old and new turbine shafts weigh in at 166g so no detrimental impact there, and new setup, again works on the <20% rule, coming in at 18%, and plotting the desired pressure / rpm mass flow points on the new compressor map comes in at 76% efficiency for the same conditions. The old compressor weighs 49.1g, and the new 65.9g, but this can’t be helped, but some what offset by the larger tip height of the new turbine providing an increased ability to extract energy.

So new combo above and old below to be balanced and then assembled:

Will, some balance options here:

These guys will balance as an assembly, suggest getting in touch, and say you need the compressor nut torqued, you can simply torque the 4 compressor back plate to CHRA assembly fasteners:

http://www.ebay.co.uk/itm/Turbo-dynamic ... 1c290a197c

I've bought parts from these guys no problem, but they will balance as a rotor assembly only, have a look at the picture at the bottom to understand what I was saying earlier...

http://www.ebay.co.uk/itm/Turbocharger- ... 5adcb0848e

... and finally:

http://www.ebay.co.uk/itm/Turbo-Turboch ... 1e6febdf54

Let me know how you get on, thanks.

Martin

turbo is rebuilt, back on engine, so subframe out again, mate engine back to my newly rebuilt gearbox and get all back on the subframe ready to go back in the car!

a few photos of todays progress!