Club G40 Forum

Technical => Turbochargers => Topic started by: z3i on April 20, 2014, 11:42:55 am

Title: ko3s part number?
Post by: z3i on April 20, 2014, 11:42:55 am
Hello, I still have no clue what turbo does or does not fit. Read threads and people just say audio and passant ones? Not golf's? Is that correct?
Ideally I need a part number from someone else's turbo? Would anyone be so kind?
I can get hold of vw then, I can get a new one cheap rather than used
Thanks taylor
Title: Re: ko3s part number?
Post by: RyanC on April 20, 2014, 05:15:04 pm
call me :)
and ill tell ya
Title: Re: ko3s part number?
Post by: Andy on April 20, 2014, 07:53:58 pm
You want one from a longitudinal engine'd 1.8t car, i.e. A4 or Passat. There's a variety of different trims, but the K03-005 is the most commonly available. K03-029 has a larger turbine wheel (so the boost threshold is higher, but it'll flow a bit better), and the rarer K03-073 is a -029 with a larger compressor wheel and housing - very similar to a K04-015.

Having tried all the aforementioned K03 trims, I'd recommend the -029 though the -073 is the way to go if you want to break 200bhp.
Title: Re: ko3s part number?
Post by: Andy on April 20, 2014, 08:04:27 pm
058 145 703 N is the -005 (I think - can't find a pic to verify 100%)
058 145 703 J is the -029
06B 145 703 B is the -073

Getting it trade from VAG is likely to be a lot more expensive than getting it from Turbo Dynamics or similar.
Title: Re: ko3s part number?
Post by: z3i on April 20, 2014, 08:16:23 pm
Andy that is absolutely perfect mate! :)
Thanks for posting that :D

I'm hoping it will be a bit cheper than trade, but I did not know that
I've found £500 on Internet new as a rough benchmark price
I shall get onto turbo dynamics,  thanks again dude
Taylor
Title: Re: ko3s part number?
Post by: Andy on April 20, 2014, 08:41:08 pm
Other option is to buy a new CHRA and use it to rebuild a secondhand eBay special. Total cost <£300ish and you can get a CHRA with a 360° thrust bearing in too.
Title: Re: ko3s part number?
Post by: z3i on April 22, 2014, 06:13:39 am
I did think about rebuilding a cheap eBay one :) £300 would be dam good, most "new" chargers are just recon ones anyway
CHRA? Sorry mate what do you mean?
Thanks :)
Title: Re: ko3s part number?
Post by: Andy on April 22, 2014, 06:37:19 am
CHRA = centre hub rotating assembly, i.e. the turbo 'core'.
Title: Re: ko3s part number?
Post by: z3i on April 22, 2014, 04:53:32 pm
I see, not too clued up on turbos

Turbo dynamics are £520! Pretty steep! Might opt for rebuilding one. Where do you recommend for rebuild kits and new CHRA with the uprated bearing?

David Hughes got back to me with we don't make turbo manifolds as the tubular steel will not support a turbo, looks like I'll be waiting a very long time for a rothe mani
Title: Re: ko3s part number?
Post by: Etches on April 22, 2014, 05:30:18 pm
The phil j ones may not be anywhere near the best but in terms of cost and the ease of sourcing one, cant knock it really. I waited for a rothe one for a while but never came up with one
Title: Re: ko3s part number?
Post by: z3i on April 22, 2014, 05:33:35 pm
No offence to Phil J, bit after the last exhaust fiasco I had with him I'm not buying one lol

If I can't go rothe I'm a bit bummed with what to do :S not settling for anything less that bang on :(
Hence wanting a new turbo etc
Title: Re: ko3s part number?
Post by: Etches on April 22, 2014, 05:48:18 pm
Stop poosing around and get a custom manifold, if your going for brand new turbo too if it was me I'd get a roller bearing turbo.

The only benefit of the k03 is that there is off the shelf stuff. Think I paid 270 for the turbo mani and downpipe and I've paid £40 per turbo and I've had two.
Title: Re: ko3s part number?
Post by: z3i on April 22, 2014, 06:03:52 pm
Yeah I was going to get an emtec mani like yoof and go garrett as they are only £600 for the roller bearing gt2554r!!! Bargain! But it's too big and don't want the lag
The ko3 will be more suited, and have similar characteristics of a glader with the right cam :) you know any roller bearing turbos with little or no lag? Like a ko3?
Also Ive been in contact with jp racing (they make ppp exhausts) and they said they won't make me a manifold :(
Title: Re: ko3s part number?
Post by: Yoof on April 22, 2014, 07:31:42 pm
Emtec manifolds fit fine, providing you make your own downpipe.

Very few parts will fit 100% straight away, you always need to accept there's some fettling or engineering to be done.

http://www.ebay.de/itm/VW-Polo-86C-6N-Stosaufladungskrummer-Garrett-Turbo-G40-GT25-Turbokrummer-Wigart-/301146671722?pt=DE_Autoteile&hash=item461dbd8a6a

+ GT22 would be good for the road with the correct cam.

Rothe stuff turs up very frequently on ebay.de - bide your time  ;)
Title: Re: ko3s part number?
Post by: z3i on April 22, 2014, 08:38:48 pm
Emtec manifolds fit fine, providing you make your own downpipe.

Very few parts will fit 100% straight away, you always need to accept there's some fettling or engineering to be done.

http://www.ebay.de/itm/VW-Polo-86C-6N-Stosaufladungskrummer-Garrett-Turbo-G40-GT25-Turbokrummer-Wigart-/301146671722?pt=DE_Autoteile&hash=item461dbd8a6a

+ GT22 would be good for the road with the correct cam.

Rothe stuff turs up very frequently on ebay.de - bide your time  ;)

Thanks dude, and thanks for the confirmation on the emtec mani fitting well as i know you had a load of trouble with all the other bits. yeah i dont mind modifying parts as at the end ofthe day im fitting a turbo to a car with a supercharger lol. i just dont want one of those phil J manifolds as they look terrible :S and so was my exhaust system from him. My ppp one fits lovely now :)

The only thing with the gt22 is its journal bearing, if im paying more for a lush t25 stainless manifold and £600 odd for a garrett. it may as well be for dual ball bearings, i was thinking the 54 trim version of the gt25 at first, what do you think? reckon i could get lag down considerably with 54 trim and the right cam?
Title: Re: ko3s part number?
Post by: Andy on April 22, 2014, 09:01:45 pm
GT cam and the GT2554R might work nicely, but depends on what you want out of the setup.
Title: Re: ko3s part number?
Post by: z3i on April 22, 2014, 09:41:20 pm
GT cam and the GT2554R might work nicely, but depends on what you want out of the setup.

Well the car is going to be mainly used on the road (swiss alps and mountain roads etc) with the occasional track day each year. so when im on the road its never going to be in the high rpm when coming out of corners etc, id like the boost to come on strong at a lower rpm around 3 to 3.5k would be nice and then see max boost at around  6k i like chasing the revs if that makes sense. but i dont want to have to change down 7 gears for something to happen when i put my foot down, or have to wait 10 years for the turbo to spool

as for bhp it doesnt really matter but i like the 200bhp barrier, i know its only figures but its something to aim for
Thanks mate :)
Title: Re: ko3s part number?
Post by: z3i on April 23, 2014, 09:43:15 am
Rothe got back to me!! They said at this current time they cannot supply the ko3 manifold
Title: Re: ko3s part number?
Post by: Etches on April 23, 2014, 10:06:56 am
Gutting! Sick custom tubular on route haha
Title: Re: ko3s part number?
Post by: z3i on April 23, 2014, 11:18:46 am
Well I've got till October to collect parts so I'll just keep an eye out on Germany eBay :)
Title: Re: ko3s part number?
Post by: Ben.lopo on April 23, 2014, 11:21:48 am
Try Phil j on here I think he might be able to help http://www.polog40.co.uk/forum/index.php?topic=6209.0
Title: Re: ko3s part number?
Post by: Andy on April 23, 2014, 12:33:03 pm
GT cam and the GT2554R might work nicely, but depends on what you want out of the setup.

Well the car is going to be mainly used on the road (swiss alps and mountain roads etc) with the occasional track day each year. so when im on the road its never going to be in the high rpm when coming out of corners etc, id like the boost to come on strong at a lower rpm around 3 to 3.5k would be nice and then see max boost at around  6k i like chasing the revs if that makes sense. but i dont want to have to change down 7 gears for something to happen when i put my foot down, or have to wait 10 years for the turbo to spool

as for bhp it doesnt really matter but i like the 200bhp barrier, i know its only figures but its something to aim for
Thanks mate :)

If that's what you want then there's a compelling case for a K03 and 268° cam as long as you can find a decent K03 manifold. I paid €300 for mine with a downpipe yonks ago on eBay.de, it's a shame if they're no longer available.
Title: Re: ko3s part number?
Post by: z3i on April 23, 2014, 01:45:56 pm
Awesome! Thanks dude! Hearing it from you gives me confidence that, that combo will be what I'm looking for :D

Yeah, I would have liked new, but I'll have to keep an eye open on ebay.De. Never know rothe might start selling then again in the future. Just said at the current time they won't be selling them

I had a look on emtec website and they do do a ko3 flanged mani. That means I have to mess around with the oil filter though. I'll just be patient :) I'm sure one will come up between now and October
Title: Re: ko3s part number?
Post by: z3i on April 23, 2014, 01:47:27 pm
Thanks for the help people :) made my mind up finally after and age of deciding what to do :)

I know it was ages ago, but how much did you pay for your rothe mani? Bartek sell a stainless downpipe for the rothe mani which is good!!
Title: Re: ko3s part number?
Post by: RyanC on April 23, 2014, 05:34:12 pm
Make ur own downpipe mate and just look for a mani on German eBay :)
Title: Re: ko3s part number?
Post by: Etches on April 23, 2014, 05:58:28 pm
Was guna say I had to have my downpipe from phil J modded to get round the stage 3 frame. Cheys didnt mind. May aswell make your own!
Title: Re: ko3s part number?
Post by: z3i on April 23, 2014, 06:56:26 pm
After seeing yoofs I was going to get jp racing to make a custom downpipe, what are the Phil j manifolds like? Just the manifold? That plus a custom down pipe might work nice! Anyone had any problems with their Phil j mani? Jp said tubular shouldn't be used for turbos as it's not strong enough. Worth making a bracket as a little bit of extra support?
Title: Re: ko3s part number?
Post by: RyanC on April 23, 2014, 08:52:53 pm
i have one ;) with a down pipe but im gonna make my own with the flange that i have, the mani's are good :)
Title: Re: ko3s part number?
Post by: Etches on April 23, 2014, 09:06:39 pm
Mines been fine although I've known a few people have problems with cracking etc.
Title: Re: ko3s part number?
Post by: z3i on April 24, 2014, 06:34:21 am
Ah screw that then!
I'll just be patient. Which garrett turbo you reckon is most similar to the ko3? Would a garrett be better than? Would a garrett journal bearing turbo withstand more of a pasting than a ko3? Less likely to let me down
Sorry for so many questions :S
Title: Re: ko3s part number?
Post by: vwdubjay on May 10, 2014, 02:53:23 pm
If your having trouble finding a manifold and downpipe message stinkypete, he offered to make me one for a very good price, but I brought a py engine with a manifold and downpipe
Title: Re: ko3s part number?
Post by: z3i on May 10, 2014, 07:05:17 pm
If your having trouble finding a manifold and downpipe message stinkypete, he offered to make me one for a very good price, but I brought a py engine with a manifold and downpipe

thanks dude

my mate has let me down with getting me a turbo
turned up to collect it all it excited for a brand new turbo from vw..... got me a second hand one... wtf!! so annoyed! waste of my time