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Author Subject: Rallycross 205 with GTI6 Motor
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

Posts: 180

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Post #1
Hi

thought i would start a thread about my rallycross car for anyone interested or who has good advice.

The Car when i bought it..... it has been a rallycross car since the early 90's and won quite a few championships over the years as a stockhatch then supermodified.

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:16
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

Posts: 180

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Post #2
As you can see from the pictures it had been neglected when i picked it up so on with a full rebuild

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:20
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

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Post #3
New body kit

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:20
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

Posts: 180

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Post #4
new paint work

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:21
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

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Post #5
At this stage the car was the following spec

Full Race MI 16 engine with 252 BHP running on Lumintion 3 d ecu and MBE throttle bodies
BE 1 gear box with TranX diff
Full Billy's suspension all round with 1.9 discs on the front and drums on the rear.

All ready for test Day at Lydden

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:24
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

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Post #6
Test day went great apart from bursting a rear brake hose so all new aeroquip hoses fitted to the car.

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:26
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

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Post #7
First race day at Lydden

It rained and rained but had a good first heat then in second heat the engine let go big time.

Valve head snapped and smashed the head and block so engine was scrap

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:29
cjm_harris

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Location: Parts for Sale section

Registered: 04 Dec 2007

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Post #8
Car looks great, thanks for putting some pictures up Smile

Bad news about the engine though Sad

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Chris
1999 China Gti6 Supercharged Devil [Fun car] >>Project Thread<<
2000 Bianca 306 Diesel [Work runabout]
Posted 16th May 2013 at 11:33
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

Posts: 180

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Post #9
New engine sourced standard GTI6 motor with 70k on it .....No

Installed engine and found that the head gasket was blowing 2 days before race day so mad panic to rebuild the top end..

Got it ready in time so off to Mallory

Had a great day of racing even when running a standard engine and had some pannel damage when chasing the british champion and he decided to stop in front of me ......Dunno

Won the B final easily and got on the back of the A final grid

Made a good start and then the front ball joint snapped on the first corner so that was it for the day....




Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:35
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

Posts: 180

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Post #10
Rebuilt the suspension and repaired the bodywork ready for Knockhill

Bought some GTI6 front disc and fitted them with race pads what a diffrence even just testing on our industrial estate.

Car tested on the saturday on the industrial estate stages and ran great so off up to Scotland for racing.

Got up early Sunday and started the car Shock it would only run on 2 cylinders so new plugs , new coil pack , new leads and checked all the wiring but still no diffrent so did practice on 2 cylinders so i would quailfy to race

Checked every thing again tried more new parts checked fueling but no good so packed up and watched the racingSad

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:40
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

Posts: 180

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Post #11
Current plan is

Fit a Rotrex super charger and steel bottom end running throttle bodies and fabricated air chamber connected to a huge intercooler, new Omex 600 ecu and new wiring loom to be installed.

To make way for the supercharger and intercooler the radiator is getting moved to the back.

Lots of work and dosh so next race will be Lydden in August and i am looking for 350 Bhp + from this conversion...

Spoke to Rich at Lynx and he has been very helpful with advise so thanks bud.

Cars ready to start mocking up the supercharger and intercooler then once completed i will rip out everything and fit the new steel bottom end.

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 16th May 2013 at 11:47
cjm_harris

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Post #12
Good work Smile

Look forward to seeing how you get on with ITB's and a supercharger Big grin

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Chris
1999 China Gti6 Supercharged Devil [Fun car] >>Project Thread<<
2000 Bianca 306 Diesel [Work runabout]
Posted 16th May 2013 at 12:01
fordygti

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Location: Walpole St Andrew

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Post #13
Yh, I look forward to seeing this to. Was thinking about it before, but I couldn't see the gains would be worth the money adding the bodies to a charged engine.

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98 onyx black 306 Rallye
53 Nissan Primastar silver (work horse)
58 black Volvo c30 sport
Posted 17th May 2013 at 10:12
daveyboy

aka Jim Davey

Location: Southampton

Registered: 01 Oct 2007

Posts: 8,648

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Post #14
fordygti wrote:
Yh, I look forward to seeing this to. Was thinking about it before, but I couldn't see the gains would be worth the money adding the bodies to a charged engine.


There won't be gains, but he's got them already so why not use them?

________________________________________

R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.

Some of my services: (See my for sale threads)
Engine mount/chassis repair
Solid Beam Mounts BACK IN PRODUCTION
Harness bars
Posted 17th May 2013 at 10:22
fordygti

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Post #15
I meant for me and my budget at the time. I'm all game for seeing this done. Like say say he has them so mite aswell use them.

________________________________________

98 onyx black 306 Rallye
53 Nissan Primastar silver (work horse)
58 black Volvo c30 sport
Posted 17th May 2013 at 10:28
cjm_harris

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Post #16
daveyboy wrote:
fordygti wrote:
Yh, I look forward to seeing this to. Was thinking about it before, but I couldn't see the gains would be worth the money adding the bodies to a charged engine.


There won't be gains, but he's got them already so why not use them?


May not be power gains, but surely still get some better throttle response, and could custom map it better surely having ITB's?

(Waits for Jim to come along and prove me wrong again Laugh)

________________________________________

Chris
1999 China Gti6 Supercharged Devil [Fun car] >>Project Thread<<
2000 Bianca 306 Diesel [Work runabout]
Posted 17th May 2013 at 10:29
fordygti

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Post #17
Only pain in the arse bit would be getting everything to line up, ie. Custom inlet plenum with the charger and aux setup.

Would be good to see.though, never seen it done myself. Sure it has been though.

________________________________________

98 onyx black 306 Rallye
53 Nissan Primastar silver (work horse)
58 black Volvo c30 sport
Posted 17th May 2013 at 10:35
playboyb

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Location: Maidstone Son!

Registered: 27 Jun 2011

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Post #18
Great lil project you got there fell, bet that is great fun to drive in! Looking forward to seeing how the itb's go with the charger Thumbs up

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306 1.8 xs moonstone blue-SOLD
306 gti6 supercharged china blue-SOLD
406 coupe D9 3.0 V6-SOLD

Posted 17th May 2013 at 10:52
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

Posts: 180

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Post #19
Hi

Thanks for all the comments, my thinking around using the itb's is that if i fit a dump valve then the charge pressure in the air chamber will stay high so when i open the throttles it will have boost pressure built up so instant power as looking at some of the vid's of the Lynx set up the hoses are sucked in so it must be vacuum in there due to the throttle body being closed so there must be a transition pause when opened.

I also want to go with Omex unit and Rich advised to try this so i will not argue with him .....

Will be interesting to see how it works with launch control and full throttle gear changes

________________________________________

206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 17th May 2013 at 11:03
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

Posts: 180

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Post #20
Oh look what has just turned up Big grin

Shiny Supercharger let the build begin Shock

Hawkesfire has attached the following image:

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 17th May 2013 at 11:10
Eddleston

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Location: Leatherhead

Registered: 31 Jul 2012

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Post #21
ooo this is a good thread! Thumbs up

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the zombie apocalypse started long ago, only no-one realised most can talk and drive
Posted 17th May 2013 at 12:00
rallye1999

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Location: redcar

Registered: 05 Jul 2009

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Post #22
If you need a cheap engine/box ancilleries (sp) im only in redcar and cant be bothered with ebay Smile
Posted 17th May 2013 at 12:56
Hawkesfire

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Location: Stockton on tees

Registered: 26 Mar 2013

Posts: 180

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Post #23
Hi

Thanks for the offer for the engine /box but i have a new bottom end with steel rods and forged pistons and i have a spare head that i am getting built up so should have everything i need.

Just reading my manual for the omex and it says it has the provision for a Knock sensor, i heard that the GTI6 standard engines have these fitted is that true and if so where is it or what is it as i think it might be tempted to fit one

Sad

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206 Rallycross GTI6 SC SHB 425 BHP clutch eater !!!
Posted 17th May 2013 at 14:38
prism7guy

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Post #24
Yeah the standard engine has a knock sensor, it should be somewhere on the front of the block above the oil filter roughly between cylinders 2 and 3. It's like a black round sensor with a lead running from it and a bolt through the middle from memory. Smile

Nice project, I'm wanting to do similar with ITB's and a 'charger but keep spending money elsewhere on the car. Doh

EDIT: Circled the knock sensor for you. Smile

________________________________________

Goldie the track car.
Posted 17th May 2013 at 14:49
allanallen

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Location: Buxton

Registered: 01 May 2007

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Post #25
Hawkesfire wrote:
Hi

Thanks for all the comments, my thinking around using the itb's is that if i fit a dump valve then the charge pressure in the air chamber will stay high so when i open the throttles it will have boost pressure built up so instant power as looking at some of the vid's of the Lynx set up the hoses are sucked in so it must be vacuum in there due to the throttle body being closed so there must be a transition pause when opened.

I also want to go with Omex unit and Rich advised to try this so i will not argue with him .....

Will be interesting to see how it works with launch control and full throttle gear changes


I think you're confusing yourself re. the dump valve. It will mean there's no pressure in the plenum rather than built up pressure, that's the point of it.

The pipes being sucked in on the videos will be due to the throttle body being fitted before the charger, yours will obviously be after. If you don't fit a dumpvalve your theory will sort of be correct, although the charger, throttle body plates and pipe work won't appreciate being battered by ever increasing boost when you let your foot off the throttle.

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Posted 17th May 2013 at 19:24

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