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e p slick's Avatar
 
Join Date: Mar 2004
Location: Tucson
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K27 rebuild source?

I want to freshen up my old K27. Anyone suggest competent/reliable rebuilder?

Thanks

EP Slick - Tucson
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AMG V8 SL55 Mercedes, 993 C2, 86' Carrera 3.6 hot rod, Purple 1998 993 that didn't make the cut, 3 very old 930s, A/Fuel Dragster CH3NO2 (R.I.P.), Blown Alcohol TAD, AA/AA, 360 Maxim wingless, Cummins Turbo Diesel. Amateur Welder, Painter and sculptor sort of. -
Old 01-14-2010, 02:43 PM
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http://www.durabilt-turbo.com/
Old 01-14-2010, 02:55 PM
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Durabilt know their stuff.
Old 01-14-2010, 05:24 PM
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Quote:
Originally Posted by copbait73 View Post
Durabilt know their stuff.
I believe so !!

But , it seems that guy is very busy and doesn't want to cooperate sometime...


Oh, in the meanwhile, Bob just replied to me .....great !!!
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965 C2T / 1991 3.3 TURBO

Last edited by Thierry25; 02-16-2010 at 07:43 AM..
Old 02-16-2010, 05:40 AM
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Another good thing about Durabilt is their turnaround time is really fast, and they are honest with absolutely no BS.

They rebuilt mine in less than a week...
The other place I had rebuild it before that took 3 months, and both the hot and cold side piston ring seals leaked oil again after approximately 1100 street miles.
Old 02-16-2010, 08:03 AM
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Ultimate Motorwerks - Zero Clearance Turbos
Old 02-16-2010, 08:11 AM
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Ultimate

I have to admit Kevin at Ultimate came through for me in the end... but only after 15 very frustrating phone calls and what seemed like a 6 months turn around.

Kevin will tell you... I'm the best and the busiest... which may be true but if you want to get your turbo back on the road anytime soon I would say go some place else. I dont think Kevin would argue with what I'm telling you.

Bryan
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Old 02-16-2010, 08:40 AM
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I will be honnest .... In one side , I appreciate RARLY (Brian) and he is very kind and professionnal guy !

But on the other side, I wrote to Kevin and sincerely I didn't appreciate his answer ! Instead to sell a turbo to me and try to understand ( and watch) what I did with my car until now, this person try to explain to me that I wouldn't get enough fuel with my CIS , that I should change my cams, make intake mods and switch my car to EFI !!! Big joke !!!!!!!!

I am wondering why he didn't suggest me to buy a Garret !!!!
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965 C2T / 1991 3.3 TURBO
Old 02-16-2010, 08:55 AM
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There are 3 UK built high speed computerized VSR turbo cartridge balancing machines in the USA.
Durabilt, Turbonetics, and someplace else have them. They are extrememly expensive and UMW does not have or use one.

There are other lesser balancing machines but you will get the longest lasting most reliable factory quality rebuild from a place that has the VSR machine.
Mk3 Balancing Machine
Old 02-16-2010, 08:57 AM
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or you can try rebuilding it yourself (providing you keep the same orientation of the compressor wheel/nut to the shaft).
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Old 02-16-2010, 09:24 AM
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Cant recommend a place to go, but can recommend where NOT to go. I wouldnt deal with UMW. My first hand experience is consistent with all of the negative feedback previously listed.
Old 02-16-2010, 09:29 AM
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Thierry, the fueling and boost curve you are using on your CIS engine is very atypical. I cannot speak for Kevin but I believe the issue is added liability. As you know, fueling becomes quite critical once you strap on a turbo capable of holding 1.2+bar past redline. Any malfunction of the boost controller at such extreme boost pressures while using CIS could have disastrous effects. That is likely where the suggestion to go EFI originated.

Ed - I can get you rebuild pricing and lead time if interested.
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'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 02-16-2010, 04:06 PM
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DURABUILT. As previously noted there are 3 UK built high speed computerized VSR turbo cartridge balancing machines in the USA. Beyond that point, I sent them my special turbo that was modified ( no ID plate ) similar to 956 specification by Kremer in 1984. According to Bob @ Durabuilt it was modified to be very similar to the later turbos Porsche used so it required a shoot from the hip guesstimate for parts required. Also from his inspection he felt that it was well suited for what was done to the Kremer tweaked CIS, which dynoed @ 480 FWHP before emissions and exhaust were added, to pass 1985 EPA requirements. When I asked about possible improvements he would not advise anything changed and charged only a standard rebuild price . He successfully sourced the correct rebuild parts on the second try and we got it back in less than 2 weeks. Bottom line, I would say these guys really know their stuff and I had no problem with communication.
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Anthony @ Voitureltd Bayside WI.

Last edited by voitureltd; 02-17-2010 at 01:59 PM..
Old 02-17-2010, 09:11 AM
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I have read some good comments from customers using Tim's Turbos

Tim's Turbos - Turbo Rebuilding

He uses a TC-3 Heins balancing machine
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Old 02-17-2010, 05:14 PM
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