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I've counted up that this is in fact my 9th VR derived engine, lol! can't keep away from them!

I started pulling it apart this afternoon. It's a weird one. It had full beige leather recaros, air con and headlamp washers (including the huge 7L washer bottle). and also had a transponder immobiliser, I've never seen one of those on a Corrado before.

As per usual, thermostat housing and crack pipe has crumbled away, chains need doing and gearbox has an almighty leak on it, but all that will be coming off.

I've put it in this thread as all the work I'm doing to it is essentially going to be ongoing development work which will eventually end up in the caged shell. This was actually the idea with the blue one I bought 2 years ago, but I had to give that up for the S8, that was too good to pass up.

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revised tensioner blade

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Oil staining cleaning out, new oil seal

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Fidanza alloy flywheel (6lb) and Helix paddle clutch

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Quaife 6 speed dog box with Peloquin diff. I wante dot get this bead blasted but just ended up clagging on a load of silver paint to cover up all the orange and black.

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new box in

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Slung one of the KW Clubsports on today. I can't help thinking the top mounts don't look that flash compared to some of the adjustable ones I've seen...but if they work I can live with that. might find something better for the other shell.

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The same can't be said of the brakes, they looks amazing :-)

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I had to make a hybrid cable bracket, half mk4, half VR6. I'd bought new Aurora rosejoints for the ends of the cables, still need to machine the pins on the shifter tower down to suit.

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But it was all in vain, the cables supplied with the shifter are no good, they are totally the wrong length, one needs to be about 200mm shorter and the other needs to be 100mm longer. not impressed....cheers Grant, not...

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I've ran vr6 engined cars for years. Mk2 golfs, corrados, even a mk4 4motion, been through them all in 12v and 24v apart from the 3.6. My other Corrado has been off the road for a few years but I just font have the time or money to finish the caged up shell to a standard I'd be happy with at the moment. I've been ammasing parts for years, buying, trying all sorts until I've ended up with the ultimate stuff I could possibly afford. I just wanted a quick and easy way of getting back out on track so everything bar the 4wd and supercharged 3.2 is going into this shell for a dry run.

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Slightly problematic day.

Got the transfer box on, but had to totally chop up the downpipe and alter it. And it seems I have the wrong through shaft for some reason, must have been a mix up when I sold off the Vr6 syncro stuff. so that's a massive setback, can't do much else without that.

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And I've had to scrap one hub and driveshaft as I can't get the outer CV to seperate from the hub.

Oil cooler plate fitted

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And tried a wheel on.

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  • 3 weeks later...

Busy weekend. I'd had the carbon bonnet for around 2 years, been sat behind the sofa in the living room so I thought I'd put it to better use.

Drilled for pin and marked out for aerocatch.

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Yes it's the other side but this is after cutting, the inner skin needed slight clearancing too.

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Aerocatches dropped in place

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And fitted

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Rear struts are too short as they are for a syncro. so i made up some extenders out of 50 and 60mm box section.

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I've had to order new gear shifter cables but decided to redesign how the shifter works too. I butcherd an old shifter unit out of a late model vw (can't remember what) for its spring and holder. And pinched the crank arm off an 02M shifter tower I had spare.

It's only clamped together at the moment and will need extra brackets for mounting it all up but at least I'll now have straight cables and a proper self centering mechanism.

The shifter I cut up

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The spring

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shifting left pushes the lower spring leg down.

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pushing right pushes the upper spring leg up.

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let go an it returns (centres). well it will do when I attach the linkage between the crank arm and the shifter unit.

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NOS Sportsman Fogger direct port nitrous oxide kit starting to take shape

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New cables from Tuthill/Cablecraft. Note the adjustable linkage too, one end is a left hand thread so I can put a spanner on the flat in the middle and turn it to lenghten/shorten the linkage to alter the neutral postion of the lever. M6 ends for rosejoints and ball connectors.

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Shifter fitted. I intend to have it fitted a lot higher in the caged shell on a new alloy bracket, incorporating the crank bitand return spring too. But for now it's all experimental just temporarily fixed to the tunnel on a bracket. Once I know it all works I'll weld the proper brackets into the other shell in the correct place up out of the way of the passenger's seat/leg

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It's all fully adjustable, will take some setting up but I can fine tune the throw and positions how I want

I still need to make up the mount for the stop which the centring spring rests on. Again this will be incorporated into the new bracket. I can't ally weld so that will have to be another job I sub out to a mate.

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not that hard. just jack up the gearbox end until you can get all the bolts out of the ally support bracket at the back and the bar that ges from the rear mount to the top of the box. then lower the box end down and tilt the box forward. you should be able to slide the box off the clutch and flywheel and tip the diff housing down between the engine and subframe and it'll drop out without hitting anything.

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  • 1 month later...

Well, managed to get the nitrous controller sussed out and (sort of) wired in. Although it isn't working. It should pulse the solenoids and gradually slow the pulsing over the time you've set it to, so it eventually delivers whatever you have it jetted to (by not pulsing but just opening the solenoids fully). I've got around 150bhp jets in there.....

An intial test by brookster confirmed it was fiting the gas in but it was a bit of a "suck it and see" moment as the whether I could run it.

I'd done 5 runs, managed a 14.3, equalling the time set by the other corrado when it had the 2.9 in it and decided to try the gas. I cracked open the bottle and flicked the arm switch, but sambo could hear a hissing. I quickly turned it off and popped the bonnet to see the foggers all frosted up!! ARRGGHH! just filled the not running engine with nitrous and fuel....not good. Left it for a few mins with the throttle body wide open then tried to start it again with it still open. thankfully it was fine.

The microswitch I'd fitted to the throttle body was the problem. The throttle mech was pushing the metal arm of the switch off the side of the throttle stop and it was jamming the switch closed. So I retired back to the pits after another nasp run. I bent the arm but then had to do a few more dry runs to be sure it wouldn't jam again.

Once I was confident I had no leaks and it wasn't going to jam on me I hit the gas once I'd got into 3rd gear. The effect was unreal! the exhaust note just picked up into a viscous, hard-edged roar and the car was noticiably faster, so much so i was actually laughing hysterically as I crossed the line.

A quick tweak of the knobs on the controller and went for a proper run with it on from the startline. the result? 13.6, 3/4 of a second and 10mph faster! insane.

I tried the controller in a few positions but it didn't make any difference, it's not working right, but I got down to a 13.58@107mph, which is pretty damn amazing for a totally standard VR6 engine with just a gas kit on it and a fancy gearbox. I was even changing up at 6k...

Much more to come, I might even downsize the brakes and run smaller wheels for drag racing as these yoko's are just far too hard for sprinting.

I reckon it's got a 12 in it....

some pics from GTI festival.

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Seat frames were welded in 2 weeks ago.

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I couldn't be bothered to cut out the old runners so i just welded to them instead.

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Recaro Pro Racer SPG and Simpson 5 point harness.

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Rear strap location isn't ideal but I fitted them at the dragstrip so I didn't have time to put them anywhere else, it was simply a case of where I could get at the spreader plate and captive nut.

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the Brooksters twisted sanity nitrous controller now fitted. it would appear I am a numpty...I never quite understood the NOS controller, it all makes sense now...apparently the build up time sequence starts again every time you come off the throttle......so i'd got it set on 6 seconds...when I'm only in each gear 3 seconds...which means it only ever deliver half of the full 150bhp shot, apart from the run where i short shifted into 4th and held it, and unsurprisingly that was the run when it felt insanely quick and did the 107mph. so now I know what I'm doing i should be able to set it up better and get some proper results.

I fitted the carbon Subaru Impreza WRC mirrors today. I wasn't so sure about them at first, they look a bit wierd, a bit like a spaniel on a rollercoaster. but I love them now. They need a bot of work to get them to sit flush, I just didn't want to mess about in case I didn't like them or couldn't see out of them and needed to sell them on.

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I think I found out when it had no power above 6k too, the old K&N was totally clogged up with filth and dead flies. Binned and replaced with a good old RamAir Pro Ram.

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Car now has a dashboard. I've fitted my autometer gauges and rev counter too but just ran out of time to get them wired up. I'm part way there, might get them done at the track tomorrow sometime.

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Off to york dragway in the morning, if it's class racing again I'll stay in class D and leave the gas off. then when that stops and it's just RWYB i'll whack the bottle in for some playtime :-)

Then it's home for tea and a shower and off to curborough for Monday. Never driven the car before other than in a straight line. Tracking and camber all over the place, not a clue where to set the suspension, and a potential 350bhp on tap. Should be interesting to say the least!

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