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Homebuilt GC8 for Time Attack
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Old 03-06-2015, 05:08 AM   #11
-mav-
2.2L
 
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thanks! Track is called Achna Speedway Achna Speedway
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Old 03-07-2015, 01:59 AM   #12
-mav-
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Getting her aligned.


Camber -2 deg front, -2.5 deg rear
toe =0 all around

What a night it was... will write about that later.
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Old 03-09-2015, 01:51 PM   #13
-mav-
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Finally had some to write...
I made it to the event, that's good news. Now about the rest...
I started working on car late in the evning on Friday. The plan was to drop everything in white car to get it running, then have a sleep few hours and get car alligned at 11:00 a.m. on Saturday and wash the car before event.
In the beginning it was nice and smooth. I was enjoying working on the car and decided to clean coilovers before installing them. Started with fronts.
From this

To this

I like shiny parts. But they should be cost effective
So, we came to a funny part. It was around 3:00 a.m. when I was putting these on the car and managed to do something stupid. I unbolted old strut on the right and knuckle went down. First thing I thought was that I need to change bushings because on black car I had to loosen arm bolts to move them and allow stock struts to move in.
Then I realised that it moved too far down and too easy - I pulled inner cv joint internals out of its housing. It wasn't in my plans and I never worked with cv joints before, so I spent some time trying yo get it back in the housing. I managed to do that but some balls fell out, so it wasn't working properly.
30 minutes and couple of youtube videos later we met for the first time

It didn't took long until this

Note the ugly downpipe.
I found all the parts inside the boot. Locking ring looked like it was chewed by something, so I thought that this is not yhe first time this happened with this cv joint.
I managed to reuse both clamps which was critical since I had no spares.
So then I just started to work in autopilot mode just ripping all parts out an throwing new ones in. Not much photos of the rest of process since I was tired andhadgreasy hands.
I managed to put all the struts, sway bars, exhaust, intercooleer on by the morning and get to the wheel alignment.
Final photo of (semi)finished product


Small teaser of next post

Last edited by -mav-; 03-09-2015 at 01:57 PM..
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Old 03-12-2015, 12:24 AM   #14
-mav-
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So, event went pretty good. Nothing broke down, car was fine. After practice lap had to remove inner fender guards snd pull front feders a bit. Competition this year will be tough. In my old S4 class (stock awd) two cars got into 1:14.xx, that's great.


Also, after making wheel allignment I tried to discover mysterious noise in rear left corner and found dead coilover damper. Had to replace rear coilovers with old shocks, destroying rear allignment, of course.

Really liked competition in my class:
ZR1, really rare car for Cyprus. 2.0l cars are alreay quite expensive in taxes (road tax is calculated from displacement) I thnk it's annual toad tax is about the same as price of my car.

I'm pretty sure that this car is the same one Iast year. I had beaten his time by few hundreds of second with my record time on last event (1:12.73). His best time on single event he took part in was 1:12,78 if I'm not mistsken. I'm pretty sure he did that race just for fun, on oem tyres and wasn't really competing, just testing what car can do. Then it used to be yellow on chrome wheels, now car is black on black wheels, has michelin cup tyres, aggressive allignment, maybe something else. Anyway, it's time now was 1:09.36. I think it might remain the record for our class in 2015 because driver of this beast is participating in serious motorsport events outside of Cyprus and really knows how to drive
I also don't expect to see it in competition again this year, again, it was for fun, I think. In fact he left after first session.


Btw, his tyres width is 315, and max width as per our class regulation is 285. But everybody liked this car, so... who needs these regulations anyway?

M3 CSL


Original CSL in perfect condition. Champion in 2wd class in previous years. Wasn't participating last year though and this was his first race on semi slicks. On slicks this car used to run low 1:09.xx laps, on street legal semis he did 1:12.1 this time

Subaru


Black STi on photo ran 1:14.xx on shitty tyres, his set of hankooks was late for the event... Cyprus is kind of small and most of the time if you looking for something specific you have to order stuff an wait for delivery... Will be much faster on proper tyres, I suppose...


Car of last year's champion, also a hawkeye STi is in rebuild now and probably be ready by next event. Last year he ran low 1:11.xx

Race classes

Always loved RX-7s


Has LS inside... kind of disappointed, i'd loved to see rotary power.

Monster EVO3 did 1:04.5 on practice day before the event




In top class race turned out to be a battle of old school vs new technology. Technology won by 0.04 sec...

red evo set fastest time in session one, but misshifted and overreved engine damaging valvetrain. It was fixable but they had no tools to fix it. In second session evo 9 had beten his time:


Now about disappoiniting moments . My time in first session was 1:16.

engine wasnt pulling as it expected. I was hoping that 3 in exhaust will add punch a bit or at least reduce lag, but I wounder if it in fact it become worse for some reason.
then I reset and did fast re-learn procedure to ecu and did 1:15.6 in second session. Had one (my biggest ever) off and managed to set my best time on next lap.
short video of these two laps:


More pics here
https://www.facebook.com/evgenios.ni...3197933&type=3

Gave my blown dampers to local rally team, they promised to show them to their trusted suspension specialist who might be able to rebuild them. Hope it will be fixable, I'm not really excited to pay BC for replacement damper.. They carhged too much...

If I want car to be competitive I have to get it to 1:11.xx...
The plan remains: weight reduction, get suspension fixed and engine... neeed more power... any ideas what to do with ej20g on budget? I have spare ej20k with vf24 turbo, yellow injectors and snapped valve. Will it help?

I'm quite sure that I can't get into 11.xx without wider tyres.. Noone else uses 215s like me.. But I'm not going to buy anything untill my Dunlops last. I think they can handle at least two more events...
Wider tyres will mean new rims and probably flares..

Last edited by -mav-; 03-12-2015 at 01:29 AM..
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Old 03-12-2015, 02:07 AM   #15
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And brakes.. Brakes feel really bad.. With 205 AD08 tyres yellowstuff pads were enough, with semislicks it's really a disaster... I can lock the wheels, but I don't have perseision in control and they fade after 3-4 laps.
Will go for 4/2 pot setup probably.
Does Brembo setup makes sense? Alwayts thought that it's an overkill for GC8...
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Old 03-16-2015, 07:11 PM   #16
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I think you would like the brembos, everyone I know with a GC8 who has fitted them has been impressed with the performance improvement.
I use pagid yellow (RS29) and they are an aggressive track pad on a gc8. The pagid blue RS4-2 is a good track pad that can also be used on the road.
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Old 03-17-2015, 02:16 AM   #17
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Thank you! my coupe had 4/2 pot setup and it was fine with my 213/45 r17 dunlop semislicks, but if go for more grip/wider tires it might not be enough. Also, I remember ride in friend's evo 8, it felt heavy but I was really impressed with braking performance. They were more percise and I could brake later. So, more is better, unless we are talking about weight ))
Will see what will be easier to source locally. Need to find time to analyse swap details in both cases, costs, etc...

Good news, my coilover damper was rebuilt in local rally suspension shop. By time it took looks like it was easy job for them. I hope they foun common parts inside... Price is 20% less from what bc charged for new damper without shipping. We'll see how long it will last, but I'm optimistic about it.
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Old 03-29-2015, 08:28 AM   #18
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May the Brembo be with you!

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Old 04-01-2015, 08:47 AM   #19
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Thinking about what to do next... EJ20G with it's unique manifold and laggy turbo is a problem. For sure it's not competitive in my class, but I'm not ready to build an engine this year. I thought that putting ESL ECU might help, but after I checked their pricing I really doubt that expected hp gain on otherwise stock engine will justify the costs. On my black car I have ECU, but it's V4. Then this idea came to me. I have old engine with snapped valve. Basically it's complete with everything required for v2->v4 swap. Manifold with all sensors, throttlebody, injectors, vf28 turbo.
Pros: I can re-use better turbo, my ESL ECU and will have more intercooler options.
Cons: need to find V4 harness, it's gonna be wiring nightmare because some things will be custom, it's basically the same (peak) hp, I never done anything like that before.
I have one month till next event. So, what do you think?
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Old 04-01-2015, 07:49 PM   #20
WhiteGhost2.5
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Very nice

Last edited by WhiteGhost2.5; 04-02-2015 at 04:33 AM..
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