VR6 Turbo

[OEM G60]

Apperently yes, although they are designed for more efficient plumbing for FI, N/A can still benefit from removing the throttle body away from the hot exaust manifold and not have the intake charge getting hot passing over the head before it enters.
Never seen one on a N/A VR6 though, not sure where you'd plumb it in from.

They're very effective with the Charge Cooler, those Schimmel Air to Water systems come with a huge water tank and pump, then a pre-rad before entering the cooler, then it s straight into the short runner, awesome, much better than all the pipe work you'd need for a FMIC.

[Tim]

so what would happen if one were to run this intake with out a turbo would it be better than the standard 2.8 mani?

I think there were some guys in the US that were experimenting with short runner intakes on an N/A VR6 but I dont know what ever become of that. Its a pretty technical topic which mostly goes above my head, but adjusting the runner length/plenum size has the effect of moving the power up or down the rev range. Thats why the schrick intake manifold with its variable geometry is such a good thing. Gives you the best of both worlds on an N/A car.

[Manaz]

I dont really see the point of turbo'ing a vr6 (in a golf at least). So much power but FWD setup? Ugh.

Easily tamed with appropriate suspension settings and an LSD...

[mk3pete]

you have me thinking now
there wouldnt happen to be a thread about this on vortex would there tim

iv started this thread now if anyone is interested
http://www.vwwatercooled.org.au/newf...ad.php?t=34315

[OEM G60]

Heres another very recent option available in the UK. From UK based VR6 guru Vince at Stealth Racing, i copied this post from the UK Corrado forum;

Original post is here, i would register on the forum so you can view attachments of dyno plots, install etc... http://www.the-corrado.net/forum/vie...hp?f=1&t=89101




When Stealth set about this VR6 Turbo project we set out a certain criteria that we wanted to meet, all the boxes needed to be ticked before launching the kit.

1: Air filter / Intake to be mounted on same side as OEM, negating the need to relocate battery into the boot. I’ve seen some kits that have the cone filter mounted directly behind the radiator ie: not relocating the battery, all that hot air, madness in my opinion.
Our Intake sits on the O/S, so this box is ticked

2: The turbo kit had to incorporate the stock intake manifold negating the need for short runner intakes as these invariably need slimline radiator fans as there is no room for the stock fans. 2 Advantages to this requirement, firstly better torque from the stock intake and secondly and importantly no additional expense. Box is ticked

3: For Corrado’s. A good sized Intercooler needed to be fitted but without affecting the exterior look of the car. I am really glad to say this box is also ticked

4: Target BHP for our Stage 1 would be at least 350bhp.. Target achieved my Corrado has made 360bhp with 9psi boost. Box Ticked

5: Size the turbo correctly for what we believe to be the best compromise. By this I mean not boosting to early and putting undue strain on transmission components and not being too laggy and turning your VR6 into a slow boosting then almighty kick in the backside Sierra Cosworth. Box Ticked

6: We feel 360ish bhp is a very safe figure for stock internals with a head spacer, however if our customers decide on an engine upgrade at a later date then our turbo kit would need to also meet these requirements. In other words with the correct mechanicals this kit should do (Stage 2) 440bhp. We will look at stage 3 another day. So no wasted money in what you have already spent. Box Ticked

7: OEM ECU to be retained using our own in house tuned and tested software. Box Ticked



Below you will find the spec and list of parts included in our Stage 1 intro kit.

T04s Turbo – 0.70 Cold. 0.68 Hot.
4” Intake.
3” V-Band exhaust outlet.
We then send this to CR Turbo’s in the UK who upgrade with Garrett 360 degree bearings and seals.

SPA T4 Turbo manifold.

38mm Wastegate. Stainless 38mm Wastegate connecting elbow.

4” Intake pipe and where applicable built in MAF housing for hot film sensors.
ISV take offs and crankcase recirc as required.
4” 45 degree Silicone Elbow.

Turbo Oil feed and return Lines. Sump Gasket.

Front mounted Intercooler

Intercooler connecting pipes with rolled lip edges, all required silicone connections
(various sizes) with max grip clamps.

Custom built 3” downpipe which is then V-Banded to your existing exhaust or if this is not suitable then we offer custom built exhausts in house as an option.

6 x 440cc Injectors.
6 x Spark Plugs
Engine Oil, Oil Filter and Coolant.

Closed loop Dump Valve with pick up and return connections.

2mm Steel Spacer with OEM Steel gaskets for either side.

ARP Steel Head Bolt Set.

JR Cone Air Filter

Custom Tuned software with Rolling road power graphs.


All in all the above mentioned Kit comes installed at £4400 inc VAT.
To give you some comparison this is about the same amount we charged for the last Stage 2 Supercharger kit we installed.

For the moment all kits to be installed in our workshop. We will try and cater for DIY later on but I have no dates at present.

A few things to consider

1: This is an Intro kit which can be tweaked to individual requirements as necessary if required? and the price adjusted accordingly.

2: Think about a decent clutch kit, We generally use Helix Clutches. Helix clutch kit price is £375 inc vat. We are looking for a cheaper alternative at the moment, maybe Clutch Masters or similar, we are even happy if you supply your own. Either way Installation labour will be £211.50 inc Vat.

3: Fuel Pump…..
Golf OBD2 owners this is a must as you only have a 3 bar pump as standard.
Corrado and Golf OBD1 owners you have a 4 bar pump and if it is in tip top condition you can probably? just about get away with it. My Corrado has the OEM pump still in it and it holds pressure beautifully at high demad.. Well for now anyway, I am sure it will give up the ghost soon.
We can supply and fit a suitable Walbro replacement pump at £160.30 inc Vat

4: Insurance, shop around before making any final decisions. Some insurance companies have BHP categories so if they quote you sensible premiums on say 325bhp and not so sensible on anything over 325bhp. If you prefer we can lower the boost and retune to a lower figure as required. It is up to we are totally flexible.

5: ARP Conrod bolts are a good investment and good insurance for your motor.
We can fit these at time of install for £164.50 inc vat.

6: Blimey I almost forgot Brakes! Yes you need em, good ones

[vwnick]

dude thanks heaps that kit sounds perfict ! .. but are the seeling for export from the uk .. but this thread is very very helpfull . thanks for the help man ill be intouch soon as i find what i want cas i just want to get the build under way ASAP ! ! but still dont wanna rush at one option thanks man

[OEM G60]

No worries, it does look like a damn good kit, tbh if my Corrado was a VR6 (just sold my G60) i would of kept it and gone with one of these, the price i thought was very good, hes asking $7600AUD to supply and install the lot, you could easily spend more than that on making up a kit yourself using parts from the US etc.

I'm sure if you spoke to Vince he would send a kit over here, not too sure on the ECU side of things though, i'm not sure if ours are the same as the UK ones? Anyone know? ECU's always seem to be what restrict us here in Australia with FI VR6's. Maybe you could send your ECU over to Stealth for mapping... Would be worth sending an email to find out.

[vwnick]

so his name is vince ay and yeah i might do that ill contatthem when i get a chance during the week and ill let you knopw what they say and if it means sending my ecu for remapping im shore that would be easy as but there has to besome one over here for shore ill askhim and see exatly what he dose and i think i know someone that can help my from the place my mate got his car tuned on the dyno... but yeah thats sick man cheer ill find out ...

[schoona]

Nice infor there Matt!

I have had my eye on these 2 babies for a while.

GT3071R-WG Dual BB, 86AR, 90 Trim Turbine :

http://www.atpturbo.com/mm5/merchant...egory_Code=GRT

Garrett GT3582R (aka GT35R) .82 A/R:
http://www.atpturbo.com/mm5/merchant...egory_Code=GRT

Slung off this:

http://www.atpturbo.com/mm5/merchant...gory_Code=VVWM

12V VR6 cast iron mani.

A fair while away for me, but thats the plan. Obviously need to talk/do some maths etc. also...

I like the idea of the dual BB (3071R) for response. But the 35R with the same A/R shouldn't be too much laggier if at all so.....

[OEM G60]

Sounds good mate.

In an earlier post theres a pic of my mates set-up, he's running pretty much what you've described, got most his parts through Bill Schimmel, he's running;

83mm Wossner Pistons
+1mm Inconel exhaust valves
+1mm Stainless inlet valves
3 angle valve cut, stems reduced
Schimmel 263 cams
Schimmel Intake manifold
Schimmel Air - Water intercooler
ATP Exhaust manifold
Garrett GT3582R (0.82AR)
500cc Denso 1220 injectors
DTA S80 Management
PLX Devices Wideband
Bosch 4 bar MAP sensor
TIAL 50mm BOV
TIAL 44mm Wastgate
Custom 3" downpipe
Techtonics 2.5" twin muffler (Borla) exhaust
R32 baffled sump (Turbo oil returns via the block)
Quaife Diff

Very neat set-up, he's invested alot of time and money into it, had some bad luck on the way with cracked exhaust manifolds, a GT30R seizing up, Pistons biting the dust etc etc. If you're interested you should read the thread on the CF that i posted, theres comparisons of this Stealth kit against his set-up, and theres not alot in it!! Actually, heres a couple of the dyno plots of the 2.........

Stealth Corrado VR6T running 9si Boost ---Blue
Kev's Corrado VR6T running 11psi Boost ---Red