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Author Subject: Rotrex Supercharger whining
doof

Regular

Location: nottingham

Registered: 24 Nov 2007

Posts: 231

Status: Offline

Post #101
I'd get a bit more pushy but the problem is they're offering me one at a very competitive price and so I can't go anywhere else. I've emailed rotrex direct to ask about the delay as TTS arevsaying they're just not getting the stock from rotrex. Will still be trying for further discount.
Posted 10th Jan 2014 at 13:46
monty-69

Senior User

Location: Colne

Registered: 02 Jul 2006

Posts: 790

Status: Offline

Post #102
Quite a few Honda owners have had rotrex failures with less than 20,000 miles. Might be worth having a look on the forums. Some are running an additional reservoir and larger cooler. Ive heard it could be due to the bearings being too small?Dunno
Posted 11th Jan 2014 at 18:47
doof

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Location: nottingham

Registered: 24 Nov 2007

Posts: 231

Status: Offline

Post #103
Rotrex say there have been some new updates to the units too. Might try and get more details on what's changed. I'm installing a temperature gauge with the new one!
Posted 11th Jan 2014 at 18:56
rallyestyle

Seasoned Pro

Location: London

Registered: 23 Jul 2003

Posts: 14,990

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Post #104
Interesting Yes Dig deeper doof! Thumbs up

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Posted 12th Jan 2014 at 10:53
clen666

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Location: Co. Durham

Registered: 12 Feb 2009

Posts: 2,401

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Post #105
rallyestyle wrote:
Interesting Yes Dig deeper doof! Thumbs up


This Yes

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Posted 12th Jan 2014 at 11:26
doof

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Location: nottingham

Registered: 24 Nov 2007

Posts: 231

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Post #106
From a guy at Rotrex:

"Normally we don’t inform about modifications since its part of our IP, but most of the improvement’s is due to more accurate parts in the gear.

Luckily most failures is due to wrong installation and overload. We have OE customers that tell us we have been chosen because of better reliability.
Thanks for your positive backup"
Posted 13th Jan 2014 at 17:11
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline

Post #107
I've done many miles with both the C30 and C38 charger units, in fact my old C30 charger is currently housed on a rally cross car and gets a very hard life and is running happily as far as I know. Yes

Seems you have just been unlucky doof. Sad

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 13th Jan 2014 at 21:47
spiky

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Location: Cardiff

Registered: 13 Oct 2006

Posts: 2,310

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Post #108
i have a document on how to rebuild a rotrex,

send my your email and i'll forward the document over

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Posted 14th Jan 2014 at 10:02
spiky

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Location: Cardiff

Registered: 13 Oct 2006

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Post #109
some info from the document


There are 6 bearings in total and all are NSK 6001 C3.
I Bought 6 from simplybearings.co.uk for £24.05 delivered with 1st class postage

________________________________________

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 14th Jan 2014 at 10:04
ash

Six Addict

Location: Chelmsford

Registered: 25 Mar 2003

Posts: 7,520

Status: Offline

Post #110
My c30/94 destroyed the impeller and snapped the shaft when it sucked part of the air filter off. My c38/81 snapped the shaft. Both were overspun. I had a shaft made for the c38/81 and rebuilt it myself before using it briefly to test it and then sidelining it as a spare and buying a new c38/91 as I was leading the QMN championship and couldn't afford the points loss if it broke again. I've never overspun the c38/91 and never will. I'm sure this is the secret to them lasting.
I'd be interested in any broken ones that still have an undamaged Impeller.
Posted 14th Jan 2014 at 23:21
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline

Post #111
What engine revs/pulley size where you using on the C38/81 to make it over spin Ash?

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 15th Jan 2014 at 07:07
doof

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Location: nottingham

Registered: 24 Nov 2007

Posts: 231

Status: Offline

Post #112
well, 3 months after ordering from TTS my new 'charger arrived. I fitted it this weekend and generally the swap was a piece of cake (apart from getting at the oil cooler). I ended up swapping the shells over because of the adapters welded on and then it was just a case of mounting the new oil cooler etc and I was ready. Unfortunately it came to starting it and it turned over, coughed for a second and then nothing. It would crank but wouldn't fire so I left it and had a cuppa.

Josh from the 205GtiDrivers forum came over to pick up an old exhaust and upon explaining what was happening he pointed to the little red reset button near the ECU. We pressed that and she fired straight into life! No whining from the charger, just a nice quiet whistle at idle. Being used to working on 205's I wasn't aware of the crash protection on the fuel pump. Interestingly I had measured 12v at the fuel pump before Josh hit the button so I've no idea how the protection circuit works.

Next job, fix the Air Bag light for the MOT and replace the snapped spring (I think that's the problem, makes some horrible grinding / crunching noises when turning!)

So good to have it running again! Once the MOT is done I'll hopefully get it booked in with Wayne for a remap.


Posted 3rd Feb 2014 at 12:54
rallyestyle

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Location: London

Registered: 23 Jul 2003

Posts: 14,990

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Post #113
Great news Thumbs up Let's hope this one perfoems as it should and you get trouble free motoring for a long time Smile

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Just Drive It
Posted 3rd Feb 2014 at 10:54
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline

Post #114
Great stuff doof, as Tom says, let's hope you continue to enjoy it for a good while this time. Thumbs up

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 3rd Feb 2014 at 12:52
marco gti6

Seasoned Pro

Location: Troisvierges

Registered: 09 Mar 2009

Posts: 1,350

Status: Offline

Post #115
Good to hear it is sorted mate Thumbs up
Posted 4th Feb 2014 at 11:32

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