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My VR6 turbo, Haldex 4wd. The end....


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Fitted my afr gauge into the middle right vent in the dash, and made an ali plate for it to sit in. Also fitted a 7psi inner spring to add to the 7psi outer thats in the wastegate already.

Boosts upto a bar with no problems, no spiking or over boost yet, got a small flat spot on light throttle, but on boost fuelling is fine. You can really hear the turbo spool up now! Its great!

I'l post some pics later :-)

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Thank you people, sorry about the lack of vids but we recorded 1 but i can't get windows to open it? I'l have to get my camera working an take a vid soon.

It does boost creep (did it this morning on the way to work!) so i'm thinking i'm going to have to re-design the exhaust manifold a bit, and buy a 44mm wastegate, so my old 38mm will be for sale soon!

Or... do i buy another 38mm, and use a double wastegate set-up???? Hmmmm.....

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I suppose thats the cheaper option, by far!

All these problems that i'm having with boost creep etc is making me think my manifold to wastegate pipe needs re-locating so its got better control of the boost.

vr6tproject211.jpg

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Right got hold of another n75 (boost control) valve, which works, and its has helped a bit, boosting upto 0.75 bar. Don't get so much creep now, but the creep rate rises with the gears, e.g. very little in 2nd, but in 6th, it creeps upto 1 bar, so don't know really :-(

Anyways, going to fit a clutch switch, so that i can run full throttle gear changes, which will also act as a form of anti-lag! Oh yeah, get some anti-lag on the go!

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Well this is how i fitted the clutch switch.

Firstly, find a brake light switch and plug off of and old vw.

vr6tproject106-1.jpg

And cut the old mounting bracket off (for hole size reference)

vr6tproject107-1.jpg

The actual hole diameter is right (thanks vw!) it just needs modifiying to accept the brake light switch

vr6tproject108-1.jpg

Its abit awkward to get in there with a file, so i just die-ground the plate roughly to accept the switch.

vr6tproject109-1.jpg

Then push and twist the switch in, just like the brake light switch, easy! 1 clutch switch!

vr6tproject102-1.jpg

All that the switch needs is an earth on 1 terminal, and then 1 wire to the ecu.

vr6tproject103-1.jpg

The ecu reads resistance along the wire, which is how it knows when the clutch is up or down.

With the clutch pressed, and the accelerator above a certain position (above 75%) it retards the ignition to drop the engine speed, but also keep it above a certain rpm (3500rpm), until the clutch is released and the engine returns to normal.

Simples! :-)

As promise pics of previous work.

Afr gauge.

vr6tproject104-1.jpg

New N75 valve.

vr6tproject105-1.jpg

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