displaying posts 26 to 50 of 53

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Author Subject: 206 turbo
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #26
My thoughts exactly.

Plated diff is either giving it everything it's got, or nothing, as opposed to the quaife that always shifts the torque wherever is needed more, and will never lock up completely. Also, plated diff needs wheelspin before it does anything, while torsen does its stuff before any slip occurs.

Much more civilized for daily driving, much less aggressive. It will break the box before the plated diff would, though, much harder on the casing.
Posted 1st Mar 2011 at 21:23
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #27
Two questions, regarding the issues i've had on the car:

- has anybody had any problems with turbo seals failing because of excessive oil pressure, causing the oil to gush past into the intake, past the impeller and into the exhaust?

- how have other people solved the brake booster vacuum? I've had issues with incufficcient quantity of vacuum on the ITBs, causing trouble with brake servo assistance.

Wondered how other people dealt with those.
Posted 1st Mar 2011 at 21:28
binkagti

Seasoned Pro

Location: canterbury

Registered: 14 Oct 2006

Posts: 2,411

Status: Offline

Post #28
Having to have my oil seals changed in my garrett t34/35 turbo, blowing into the exhaust causing slight smoke coming off boost at 7000rpm then clearing once going back on throttle.

Also some black soot sometimes coming out of the exhaust, what are your symptoms.

________________________________________

TEAM Supercharged Rallye





Posted 2nd Mar 2011 at 00:29
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #29
Oil pressure at idle is around 5.5 bar on cold, dropping to around 4 when oil heats up, with 6 bar maximum. No matter how good the oil drain from the turbo was, there was no way i could drain it quickly enough, it was just too much pressure and oil quantity for the ballbearing to handle even though i had 2 restrictors on the JIC3 oil feed line - so i had oil gushing past the intake impeller toward the filter, into the intake and exhaust.

What i did was put a heavy duyu electric oil scavenge pump to the oil return line, to draw oil from the turbo and oil catch can, and push it back to the sump. That created another problem, with the Accusump, because if the Accu pushed oil in the engine while the scavange was not on, i got oil in the exhaust and intake again...had to make the scavenge run for a while even if the engine is shut off to prevent that.

I was wondering how others dealt with that, in a more simple manner or have they made it complicated like i did Smile
Posted 2nd Mar 2011 at 15:48
noaki

Senior User

Location: \"sunny\" Bournemouth

Registered: 05 Apr 2009

Posts: 506

Status: Offline

Post #30
i like this alot anychance of some more pics?? Big grin

________________________________________

Team ex "manstone" - "THATS TO LOW!!"..."I KNOW!" Sad

Team defeat - bring on the *06! :/
Posted 2nd Mar 2011 at 17:04
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #31
Sure, i got tons. Pics of anything in particular?

Posted 2nd Mar 2011 at 21:24
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #32
- head with mech. valvetrain, oversize stainless steel valves.

- as it once was, decompression plate

- old pistons, all went bust at the same place, that's what happens when you don't have the eccentric pin on the pistons...

- old and new, forged crank



- "welder's nightmare"

- AP Racing twin plate cerametallic 184mm

- fans and twincore rad



- accusump and oil cooler



- brake booster vacuum pumps

- all of those are essential, i assure you Big grin





- scavenge pump



Posted 2nd Mar 2011 at 22:11
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #33
Youtube video links

Dyno video

What torque steer?
Posted 2nd Mar 2011 at 22:16
spiky

Seasoned Pro

Location: Cardiff

Registered: 13 Oct 2006

Posts: 2,310

Status: Offline

Post #34
looks very impressive Big grin

please tell me thats not a "show" cage?

________________________________________

Do you need a 205 > 306 gti6 plug and go engine loom? PM ME

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MY YouTube Videos'

SUPERCHARGED 205 GTI6.... are you Fooking nuts!.... ummmm YIP Smile

268+BHP and 860kg = FUN
Posted 2nd Mar 2011 at 22:20
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #35
Nothing on the car is purely for show. Roll cage is made of a seamless CrMo bent pipe, 8 point bolt in, a slightly downsized copy of the Peugeot Sport cage, so it's far from a simple collection of cobbled up pipes with no structural logic behind it.

I only thought it would look better chromed.
Posted 2nd Mar 2011 at 22:31
spiky

Seasoned Pro

Location: Cardiff

Registered: 13 Oct 2006

Posts: 2,310

Status: Offline

Post #36
ah ok Smile

persoanlly (and just my view Smile) it does looka bit chavy in chrome

matt black would look better Big grin

have you got a power graph of the car?

________________________________________

Do you need a 205 > 306 gti6 plug and go engine loom? PM ME

TORQUES for all your braided fuel line needs

MY YouTube Videos'

SUPERCHARGED 205 GTI6.... are you Fooking nuts!.... ummmm YIP Smile

268+BHP and 860kg = FUN
Posted 2nd Mar 2011 at 22:30
noaki

Senior User

Location: \"sunny\" Bournemouth

Registered: 05 Apr 2009

Posts: 506

Status: Offline

Post #37
206 wrote:
Sure, i got tons. Pics of anything in particular?



a bigger side view or the back end? Big grin

________________________________________

Team ex "manstone" - "THATS TO LOW!!"..."I KNOW!" Sad

Team defeat - bring on the *06! :/
Posted 2nd Mar 2011 at 22:32
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #38


I didn't want to paint it, as the roll bars in my other cars got chipped and became pretty scruffy over time, chrome does not deteriorate. Black chrome, though...hmm

Posted 2nd Mar 2011 at 23:15
daveyboy

aka Jim Davey

Location: Southampton

Registered: 01 Oct 2007

Posts: 8,648

Status: Offline

Post #39
Chrome does cause weld embrittlement and will reduce the cage's effectiveness in a crash Wink

Thats why historic race cars are'nt allowed to chrome their wishbones, they have them zinc passivated instead, just thought you should know Smile

________________________________________

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 2nd Mar 2011 at 23:18
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #40
BIG ENOUGH? Big grin











Posted 2nd Mar 2011 at 23:25
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #41
daveyboy wrote:
Chrome does cause weld embrittlement and will reduce the cage's effectiveness in a crash Wink

Thats why historic race cars are'nt allowed to chrome their wishbones, they have them zinc passivated instead, just thought you should know Smile

That's why none of the welded seams were chromed, but painted.

Valid point though, it will probably not be as good in a crash as the real cage would be, but it's there primarily to stiffen the chassis, as i don't plan to go rallying anytime soon.
Posted 2nd Mar 2011 at 23:24
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #42
Small update - changed injectors to 1600cc Injector Dynamics, plan to run ethanol as well, lift the power up a bit Smile
Posted 12th May 2011 at 13:48
russbez

Seasoned Pro

Location: Inverness-Shire

Registered: 19 Dec 2005

Posts: 7,459

Status: Offline

Post #43
very nice read

thanks

________________________________________

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My Rallye project thread
Posted 12th May 2011 at 14:57
cwspellowe

Seasoned Pro

Location: Calderbank

Registered: 19 Jul 2009

Posts: 6,496

Status: Offline

Post #44
206 wrote:
- all of those are essential, i assure you Big grin


Sure, but I don't see an AFR gauge Razz

________________________________________

Bye bye Sundance Kid Sad
Posted 12th May 2011 at 22:33
rwgti

Seasoned Pro

Location: Yorkshire

Registered: 08 Jul 2008

Posts: 1,727

Status: Offline

Post #45
Looks like you have put alot into it mate Thumbs up

________________________________________

Team Astor Grey Supercharged GTI 6


Posted 13th May 2011 at 01:44
vipergti

Junior User

Location: WARRINGTON

Registered: 10 Apr 2011

Posts: 69

Status: Offline

Post #46
Got to say pretty impressed well done Clapping

________________________________________

Proud Member Of Team Astor
Posted 13th May 2011 at 02:04
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #47
The point of an AFR being...? Nothing you can do about that anyway, once you map the car, no need to know that anymore, it's an indirect and imprecise way of knowing what's going on inside an engine. EGT on the other hand is a better indicator of something going potentially wrong. Not ideal, not all-knowing and without fault, but still very useful.

The Ecu monitors both anyway and compensates or cuts power if they go outside the safe parameters.
Posted 13th May 2011 at 14:34
asim_pug306

Senior User

Location: Bradford

Registered: 26 Aug 2009

Posts: 933

Status: Offline

Post #48
Great build mate well done. I love the way you emphatically answer criticisms LOL, clearly know your stuff!

________________________________________

'01 Astor Grey GTi6

'99 Cherry Rallye
Posted 13th May 2011 at 07:02
206

Newbie

Location: Belgrade

Registered: 24 Feb 2011

Posts: 42

Status: Offline

Post #49
Smile Well, had lots of critics, lots of practice Smile

Posted 13th May 2011 at 14:33
adam b

Seasoned Pro

Location: The Nam

Registered: 24 Jan 2006

Posts: 12,828

Status: Offline

Post #50
Slightly strange shelf in the power curve at 5.5k rpm. Whats that about? Is it just from the turbo finally hitting maximum boost pressure?

I can see why it is drive-able with the torque increasing so steadily. Bet it still shifts though. Mine has a much bigger torque spike low down (about 3k) which will go when its remapped.

________________________________________

Nothing to see here
Posted 13th May 2011 at 15:36

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