Kokeln Turbo- who knows anything about them?

[cpattonco]

Hi I bought a a 84 Euro 3.3 Turbo Motor and it has a Kokeln Turbocharger and stock I/C on it. The motor runs great and pulls like a freight train. I'm just wondering how it compares to other Turbos. Does anyone know about Kokeln Turbos.
Thanks
Chris

[Garrison]

KOKELN :: Racing Products

They still offer their turbo for our cars...might want to check with some of the turbo experts on here, but I would bet it is a K27hybrid of some sort.

[JFairman]

I think they use Garret.

If you post a picture showing the bearing housing and backplate it would be easy to tell what it is.

[cpattonco]

Thanks , I'll grab a pic when I can get it out of winter storage.

[tj930]

I remember asking one of Kokeln's sales persons about their turbochargers.

They have a ball-bearing option, but the salesman suggested that you really wouldn't feel the benefit without EFI..

[infraredcalvin]

Im no expert by far, but it uses turbonetics guts, the housing is very similar to a K27 (if not the same) it's my understanding that they were developed at simialr times - I'm also not saying who had it first, but FWIW I have a Kokeln and love it. I bought one new from Kokeln when my 3ldz blew a seal 2 years ago.

As far as the ball bering option and efi??? News to me they were primarily designed as a bolt on upgrade for an otherwise stock car and will support up to approx. 400+ rwhp.

[RarlyL8]

I didn't see any pricing, what do they run?

[infraredcalvin]

I paid UHLOT less than what is should have cost, but from what i remember retail cost was comparable to the K27 (but i really don't remember what that was at the time). Last I heard Kokeln (and this is from the horses mout) is reinventing themselves and getting out of the 930 business to focus on water cooled upgrades. They still have some stock on the shelves but aren't putting too much effort into the air cooled turbos anymore - that's one of the reasons getting a new Kokeln intercooler is getting more difficult.

[911st]

I believe under an exclusive agreement Vision Motorsports / Koklen commissioned Turbonetics to cast a hot and cold side that would bolt up to the muffler and header without issue using more modern Turbonetics guts built to his specs.

I think it came with its own oil line that was sized to restrict oil flow to the turbo. It was considered a step up from a K27-7200 and spool faster. He could make them to custom specs for you but mostly it was sold as a product.

I believe Dwight at Vission was an Andial graduate and knew his 930's very, very well.

[infraredcalvin]

Originally Posted by 911st

I believe Dwight at Vission was an Andial graduate and knew his 930's very, very well.

Dwain Dement is the guy... good info

[911st]

That be him. Thx.

Also made a very nice equal length header system and a 993HE based 930 exhaust for a long time.

[infraredcalvin]

Originally Posted by 911st

Also made a very nice equal length header system and a 993HE based 930 exhaust for a long time.

He is my mech for my car and we've discussed making the 993 based exhaust for my car, but I never knew hed did an eq length header system, does anyone have any pics?

[911st]

I think this might be one of his:



I think I like Brian's new set up better. It is hard to beat the 993HE's for a street turbo that wants quick spool, OEM reliability, and heat.

[tj930]

Originally Posted by infraredcalvin

As far as the ball bering option and efi??? News to me they were primarily designed as a bolt on upgrade for an otherwise stock car and will support up to approx. 400+ rwhp.

Well, mate, I'm not making it up!.. We are talking about 2003 or 2004, here..

Sorry, I'm probably going a bit fast for you; the primary benefit of the BB was quicker spooling and - at the time - 'DWUR' and 'Leask WUR' weren't readily available, so CIS' boost-onset over-richness would null the turbocharger's pick-up.

Browsing the website on there and there are guys' cars I knew from 911turbo.com. (Guys like John Hunt and Eldon P.Slick; John sold his '79 car years and years ago!) The Kokeln website doesn't look to have been updated since 2005!

On the site, there was mention of an 'old' and a 'new' Kokeln turbo - maybe that was the difference? (Maybe the new is the ball-bearing option?) As I remember, the BB option cost an addition $300-ish.

But I don't have the email. (I've moved work about 4 times since that time!)

[1974carrera]

Originally Posted by tj930

Quote:
Originally Posted by infraredcalvin
As far as the ball bering option and efi??? News to me they were primarily designed as a bolt on upgrade for an otherwise stock car and will support up to approx. 400+ rwhp.

Well, mate, I'm not making it up!.. We are talking about 2003 or 2004, here..

Sorry, I'm probably going a bit fast for you; the primary benefit of the BB was quicker spooling and - at the time - 'DWUR' and 'Leask WUR' weren't readily available, so CIS' boost-onset over-richness would null the turbocharger's pick-up.

Browsing the website on there and there are guys' cars I knew from 911turbo.com. (Guys like John Hunt and Eldon P.Slick; John sold his '79 car years and years ago!) The Kokeln website doesn't look to have been updated since 2005!

On the site, there was mention of an 'old' and a 'new' Kokeln turbo - maybe that was the difference? (Maybe the new is the ball-bearing option?) As I remember, the BB option cost an addition $300-ish.

But I don't have the email. (I've moved work about 4 times since that time!)

tj930, I can confirm that you are correct about the ball bearings. I have a Kokeln turbo that has ceramic ball bearings...purchased from Dwain at Vision around 2004/2005.

[911st]

I talked to Dwain about turbos and the BB option also some years ago.

I can confirm that he recommended against the BB option for CIS.

I seem to recall that his reasoning was the restrictive CIS was going to minimized any improvement and it was not worth the investment for the nominal improvement.

I am not sure, but the BB options from Turbonetic's back then might have been a hybrid and not a full BB turbo.

Also, I think he got access to some newer compressor wheels when Turbonetics went through an update. This might be the origin of the newer gen. turbo.

He also would do custom turbos. He was willing to make me a turbo with a 60-1 compressor on it.

[935TURBO]

I had one 3 years ago....never fitted on the car....I got the K29.....much bigger.....



Very well manufactured......

[infraredcalvin]

Ha, learn something new here every day! I have to admit that when I was buying my replacement Dwain and I had discussed keeping my car relatively stock and I needed something that was a true bolt on, and would work well w/o an intercooler. So the discussion of something different never really came up.

[tj930]

Originally Posted by 1974carrera

tj930, I can confirm that you are correct about the ball bearings. I have a Kokeln turbo that has ceramic ball bearings...purchased from Dwain at Vision around 2004/2005.

Cheers and thanks a lot, Bob!

Sometimes I get the wrong end of the stick, and sometimes my non-Photographic memory lets me down - but if I were going to make stuff up, I'd at least make it exciting!

"Yeah, I outdragged a Carrera GT the other day!" lol

..All the best

[pu911]

Anyone know if Koklen is still in business, thier phone # is out of service.
Phil