HummuH

So, Super Lap Scotland (SLS) Rounds 2 & 3 were at the weekend. Great fun, good folk. For those who don't know SLS is a similar format to Time Attack with cars classed on Wheel HP / Tonne, but with a major difference; your whole day comes down to one flying lap in the final which sets the results. Weather forecast was good so we decided to try out a few things over the weekend. Ran the car for the first time with no front anti-roll bar all weekend, generally seemed an improvement. Ran with new rear toe (appx -0.15) and camber (-1 degree) settings, again seemed to work well. Finally, tried out soft compound tyres for the first time which delivered a consistent 4mph over Vmax on mediums and 3mph apex speed. I was braking at same points as on mediums though so you could see on the VBox that I was losing the time I was making up in the braking zones. Now I have used them and know how good they are I'll brake later next time out. On Saturday we were running the track in reverse direction which I've only driven twice before. It's very different to normal direction with the bumps and corners affecting the car differently to normal direction. Good news was we got quicker each time out on track which resulted in a new PB and 2nd place in the final behind Stuart Walker in a mighty 997 Turbo S. Video of Saturday's final lap: Sunday was back to normal direction and was determined to go one better. Again, kept going quicker and decided to put on some 205/40/17 Kumho V70 softs for the qualifying and final. End result was a new PB of 56.7 and 1st place in Class C. Good time with a couple of mistakes on the lap so hopefully more to come. Video from Sunday in post below. Finally, here's some pics from the weekend courtesy of John Stewart of Flat Out Photography:

What 02A box you running? Not sure what you mean about LSD reinforcement. I run about 380bhp through a CBA 02A. The 02A's seem to handle the power well enough although 4th seems to become vulnerable with higher torque. High rev 2nd to 3rd changes are often difficult and easy to miss. I'm in the process of swapping the 2nd, 4th and 5th from a VR6 CCM into my box. I run a Sachs racing 4 plate paddle clutch and lightened G60 flywheel. Very driveable despite the paddle clutch. In all seriousness, if you plan to use the car (and maybe more importantly, the power of the car) regularly, a spare box is a must IMO. With that power/torque, something will go at some point, it comes with the territory. Same goes for CV's, drive-shafts, bearings etc, they take a pounding over roughs surfaces when on throttle. What diff you going for? Traction, even with semi-slicks, is still my biggest issue though very manageable. Personally, I'd get the car to where you want it power wise and then choose what you do with the box as if you're using standard gearing it was designed for a car with less than half the power/torque.

Whoever said flaring the rear arches was the easiest option obviously hasn't done Corrado arches before. The rear arches are pigs to roll as they are double skinned, it takes a fair bit of work and I'd be amazed if you didn't need paint work done after it. Something doesn't seem quite right, I don't think ET33 on a 17x7.5 should stick out that much. I ran 16x7.5 ET 35 with 10mm spacers and the wheel was well within the arch. I now run 17x8 ET20 with 20mm spacers, so 0 offset and my wheels are about as far out as yours. Are you sure there's no rear axle spacers being used? EDIT: Sorry, just noticed it's a 5-stud, my offset comments are only really applicable to 4 stud.

Yeah. We had looked at the boost logs and we had noticed a 0.3bar drop, not huge. Regular smoke tests will get done now.

OK, massive post incoming..... Last week was quite interesting. After getting the car back on Tuesday, Thursday started at 9am with a dyno and weighing session for Super Lap Scotland. Russ @ Performance HQ asked if I wanted a smoke test done on the engine before the dyno so we did it. Smoke pishing out of the MAP sensor and also the intercooler. So, two fairly significant boost leaks, not good. Car should have registered peak flywheel power of 350bhp to 360bhp (dyno variance), we peaked at 300bhp, well down. I've clearly been running like this for some time, hard to figure out how I didn't notice such a large drop in power, I knew I was down, but not by that much. So, within an hour and after a huge favour from AF Noble Subaru in Penicuik, front end was stripped off to reveal a massive tear in the end tank of the intercooler where the oil cooler was mounted, the result of movement over time. Over to Andrew Turner Blacksmiths in Penicuik and they kindly welded up the intercooler and replaced some other vulnerable welds too. MAP sensor was simply a worn O-Ring so easy enough to replace. So by Thursday night all was well in the world again thanks to a host of people who love and understand motorsport, I'd be stuck without them. Car was now ready for Sunday, my first shot at Super Lap Scotland. It's basically like Time Attack, but power to weight classes and run only at Knockhill, in both directions. Didn't really know what to expect from the car after fixing the issues so we got set-up and ready for practice. Practice went well, instantly set a new PB and the car felt quick. Went into qualifying which is 2 x 2 hot laps, preceded by a warm up lap and a cool down lap both times. I was able to get tyres up to temp and set a new PB of 56.8 secs, over 2 seconds ahead of the next car in Class. In the final, which is one flying lap, I had killed my tyres in Quali and was struggling to get them to temp. Had to correct the rear end in the first three corners which knocked a bit of time off but we posted a 57.8 to take the Class win and driver of the day trophy. Here's the vid and some more photo's from the day: [video=youtube;9IKaBu1-liY]

New livery done, wee sneak peak:

Interesting. Our front weights are quite similar but I have about 180kg less over the rear axle. Shows that unless you take it back to bare shell there's very little weight to come off the front of the car unless you run a 0.5l engine.

Cheers mate! This will be my 3rd year racing mate. Hehe, that's the trouble with the Evo's/Scoobies, they can run big power and have great traction but it means they regularly have mechanical issues. Steering is good on the car but ideally I'd have a quicker rack in there, the hairpin ties your arms up.

Race 2 Video: [video=youtube_share;XfBiVWUdwVM] Ended up finishing 1st in Class so a 1st and 2nd for the first weekend out, not too shabby against some decent competition. Some of you on here will no doubt be interested to hear how all the modifications have affected the car. All in all, I'd say a reasonable step forward. By far and away the biggest improvement is the brakes. Combined with 235 rubber on the front the car was stopping very well. The downside was that I wasn't properly adjusting my braking points so I didn't take advantage of the time that's in them. That will hopefully come with time in the car, some tuition and building confidence in the components. With the wider track, uprated ball joints, anti bump-steer kit and wider tyres there is definitely more grip at the front end, no question of that. Downside is that torque-steer has noticeably increased but that is very manageable. The car still has a slight tendency to under-steer so we'll spend the next few outings playing with balance to find what works best for the laptimes. I was 0.5 sec off my Knockhill PB in it's first outing and others reckoned the track was running 0.5s slower due to track temp. If that's the case, and I can man up and get the best out of the car, a 56.X laptime should be possible, which I would be delighted with. That's the target for the year. Some photo's from the weekend courtesy of T Works Automotive

So, first race done in the car after all the winter work. Testing was on Saturday. Kicked of by setting fire to the steering column gaiter in the first session, handy. Next session spent scrubbing tyres and bedding in brakes properly. Car felt good so we decided not to waste rubber, pack her up for the night and have a first hard run in qualifying the next day. Unsurprisingly, Knockhill thwarted our plan. Whilst the whole of Scotland basked in 15 degree sunshine, there was thick impenetrable fog over the circuit. It didn't move until lunchtime so qualifying was 3 laps behind the safety car. Race 1 grid was sorted by a combo of last years Championship standings and race numbers. This meant I started 3rd but meant there was some serious machinery just behind me wearing slicks. Technically, I spent the whole race going backwards. My brain wasn't up to the standard of the new brakes and whilst lap times weren't far off my PB, data showed I was coasting in braking zones, not clever. Ended up 9th and 2nd in class. Race 1 Video: [video=youtube_share;ZP8bvaOE1mg]

Cheers guys.

:thumbleft:

Cheers! Away and punish yourself.....:)

Ok, long overdue an update. Car has basically been in body-shop for past two months. I had bought a set of Mk2 Berg Cup arches and was hoping to modify them to fit. Didn't work, two reasons. Firstly, the arches just did not suit the "curvier" Corrado shape and were going to take major work to fit. Secondly, I was going to have to go full custom wide-track or run bonkers width wheels to fill the arches, not an option. So, sat down with the guys at the body-shop and agreed to go down the route of widening the arches to keep an OEM look and allow us to fit 235 width tyres and 8 inch wheels without upsetting the geometry too much. At the same time I got a few modifications made: Sunroof delete (quite a bit of weight in there!). Quick release system for front bumper. GRP Bonnet with added Aerocatches and vents to improve air flow/cooling. Vents added to wings (small attempt to let air out or arches). GRP Tailgate with smoothed panel. Install Carbon Fibre scuttle panel and rain tray. Remove quick jacking points (unnecessary weight). Install new RAM air ducts for brakes. Remove wing mirrors. So, off she went and the guys got butchering: I have decided to go with a wrap/livery of a certain design, an idea shamelessly pinched from VW Racing. This required a white base to the colour so decided to spray the whole car Frozen White. I wont bore everyone with loads of photos of stuff getting painted but I'm quite pleased with the end result, it's too nice to race now! A few more minor bits and bobs to be done for the first race this weekend but she will be out. Didn't think that would be possible a few weeks ago. Massive thanks have to go to Scott Watkins, a man who's determination knows no bounds and everyone at AF Noble in Penicuik who have helped me get there. Big thanks to JabbaSport too, built an awesome engine and have to deal with annoying phone calls from me all the time. :cheers:

:afro:

I'm in the process of widening the arches on the Corrado. For various reasons I've gone down the route of modifying the original arches rather than bolting on after market, principally because I wanted to retain more of an OEM look. Also has the added advantage of being able to fill the wide arches without having to go wide-track, run really wide wheels etc. If there was sufficient demand I could make some moulds of the new arches which should provide a solution that should be a direct fit to the Corrado body shape with removal of the existing arches. If this would be of interest to you please let me know by replying to this thread. If sufficient demand I'll look into the costings and provide further info. Please note these are not yet completed but the images below show the arches nearing completion.

Thanks guys, no longer have a requirement for this part. Cheers.

Welcome. Get some pics up :)

Also, it's not uncommon from TRE's to need some heat to free-up and adjust if they haven't been touched for a while.

Cant't see how that's a good way to do it. Surely the rack is now off-centre and you'll have different lock left to right. I have always adjusted both TRE's with rack central and steering locked.

Because someone might have to tow you out of a ditch backwards :) I'm sure you must know it's not for you towing but for you to be towed. Mine gets used a lot to pull me out of the kitty litter.

Yeah, my car's still in bodyshop but we'll be up with the Mustang, pop over or I'll look you out at some point.

Looking really nice mate, looking forward to seeing it out tomorrow. On the compensator, keep an eye on it. In my first season I had issues with it, basically you don't want it working as it is intended to work as it will put too much pressure to the rears and you'll lock them easily. Get a cable tie and secure it. Go out and test. Keep tightening it until you get to the point where you're happy with how the rears act under heavy braking, into hairpin is best place to test. I have now ditched mine altogether and installed a dual-line brake bias. Might not be an issue for you but if you feel the braking is a bit unsettled do the above.

That's very confusing as all the gearbox ratio charts show the CDM as having a 3.647 R&P. Must be using US specs.