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Golf Mk3 VR6 on Air - Supercharger.


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On 5 July 2016 at 6:58 AM, Dave_ciw said:

Ah so its the Z2 Engineering you are running??  What are the injectors out of at 394, they sound different.  

 

Just think of what could of been achieved with a custom map on the rollers mate, great work.  Is it possible to have a new pulley machined for the Z1?

 

 

 

 

Yeah mines a ZR-2, with custom toothed setup. 

 

Yes you could highly likely find a company who would make ZR-1 pulleys.

If your paying for design, and production the price would be rather high. Easily £300 - 400 + at a guess. 

 

I designed my custom tooth pulley my self. I do CAD as part of my job, and know how to write and use G-code for most CNC machines. I've worked in the computer industry all my life.  Then just had a CNC company produce it for me. 

 

Only problem with higher rated pulleys on a ZR-1 is you will get belt slip, as the use a v-groove belt. Hence why they went for a toothed belt on there superseded charger. ZR-1 are know for belt slip even at 6psi, as a result of this they need the belt replacing more often compared to a lot of other chargers. 

 

So yes you could get pulleys made, would I recommend getting them made... No. Not unless upgrading to a toothed set-up.

 

I will get it up to Stealth for another map, but it's having few more things done first. :)

 

 

 

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Couple of photos from last time it was out to keep build alive. 

First photo of my Two VR's together.  Not the best photo, but I had both of them out on weekend, and had to take one     Many more photos of these pair coming when the nicer weathe

I tired to hand paint my rear VR6 badge red, with a small artist brush. I went for hand painting at 1st as I wanted to keep the black outter edge. And didn't want to mask it all up. But it came out s

11 hours ago, matty.vrt said:

I would guess they are 320cc injectors or something similar as most injectors are rated at 3bar so the increase in pressure would account for the 74cc increase in flow.

 

 

Almost bang on the money mate :) 

 

If I remember right,

 

there 339cc at 3bar 

 

394cc at 4bar 

 

there EV6 as well, which are meant to atomise better than the original EV1.

 

 

What car there from I have no idea, I bought them off a guy who was recommended to me by a close friend. 

The guy ultrasonicly cleans them, rebuilds them with new baskets, seals and caps, flow tests and matches them. Then sells them. 

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Just read through again from the fitment of the charger..  I must of skipped a page originally all info on injectors is there lol  Old Volvo 2.4 Injectors I think!

 

Surely have six of those knocking around my yard.  What made you go back to the 3bar fpr?

 

Where you able to drive the car ok without the map?

 

 

 

 

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On 11 July 2016 at 9:39 PM, Dave_ciw said:

Just read through again from the fitment of the charger..  I must of skipped a page originally all info on injectors is there lol  Old Volvo 2.4 Injectors I think!

 

Surely have six of those knocking around my yard.  What made you go back to the 3bar fpr?

 

Where you able to drive the car ok without the map?

 

 

 

 

 

I was running a standard fuel pump back then dude, and 4 bar at 394cc seemed to be abit much for it. 

 

But now I've got an updated fuel pump in there and gone back to a 4 bar regulator.  

Keep meaning to do update but just haven't had time. 

 

 

It didn't run the best with out a map, the idle was very lumpy and would hunt. Plus I never went over 3,500rpm with out it mapped just in case it leaned out to much. 

So yes it would drive, but not very well, and I didn't go high rpm. 

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Got my Audi 80 gauges fitted, and all wired up. 

Not hard at all to wire up, just need 12v, 12v switched, ground, illumination, and single wire each for the sensors. 

I was suprissed at how easy they were to fit. 

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Fainly got a photo of my boost gauge that has been in there ages now lol 

839B200C-C371-4F5A-B05F-6D7DFBE5B861_zps

 

All the gauges have red illumination to match dials and all my switches.

 

 

 

I've had my 280mm steering wheel in there for ages now, I do still like it but fancied a change. 

387A2DA9-E339-4470-8C22-8B83E6EC12C1_zps

 

So I bought an Audi TT mk2 flat bottom steering wheel, 

Direct fit, if your willing to loose the air bag and horn. (Or wire horn up to push switch on dash) 

I wanted the horn in the centre of the steering wheel, not on a dash button like a lot of people when they retro fitting flat bottom steering wheels, so I custom fitted the golf mk3 slip ring to the flat bottom steering wheel. Giving me the horn function in the Center of the steering wheel.

 C37B6323-3BAA-4C92-89FC-9856A06108CA_zps

 

 

Bought a MK7 golf airbag cover, which is slight smaller than the Audi one, but it has a VW badge in the middle :)

I'm thinking of painting the sliver part gloss black, abit like the RS3 steering wheel. 

I'm also hoping to re-wire the buttons and get them illimanted, as they already are red. 

But the problem is they are meant to communicate with a can-bus system. Not OBD2 with centeral electrics. 

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the black on the centre of seat is just a black towel, so the drivers seat doesn't get dirty while I'm working on it. 

 

I have have a few ideas of what to do with the buttons on the steering wheel. 

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