Author Topic: TURBOS TURBOS TURBOS?????? (Read 12347 times)

foxracer1 · « **on:** February 03, 2007, 08:35:27 am »

What are the turbos that were all offered on the VW diesels?
Alos where do they spool at?

garret/t3 - older engines? - more boost higher rpm than below?
kkk/k26 - eco? quicker spool?
kkk/k06? - aaz - really quick spool?
VNT - TDIs

And what years were they offered?
I'm confused with the TDIs and the turbo manifold combo where both are one? what years did they do that where they all VNTs? just tryin to get all the differet ones figured out.

QuickTD · « **Reply #1 on:** February 03, 2007, 09:46:04 am »

Garret T3 Used on early 1.6TD's. A little large and laggy for the stock engine but responds well to fueling mods. Trapezoidal manifold flange.

KKK-K24 - Used on later 1.6TD's, slightly slower spooling than the T3. Trapezoidal manifold flange.

KKK-K14 - Used on the US ecodiesel, the european RA/SB GTD engines (with watercooled cartridge) and used on some early 93-94 1.9TD AAZ engines. Good compromise between lag and max boost for mildly tuned cars. Trapezoidal manifold flange

Garret T2 - Used on some early passat 1.9TD AAZ cars, I have one in "stock" but have no experience actually using it. Someone else may be able to add something here. Size appears similar to the K03. Trapezoidal manifold flange.

KKK-K03-003 - Used on canadian and european 1.9TD AAZ engines. Extremely quick spooling but less than adequate flow for big power. Triangular exhaust manifold flange requires K03 manifold.

KKK-K03-006 - Used on early passat and Mk3 jetta 96-97 TDI 1Z and AHU, much the same as the 1.9TD K03, but is set up for mounting under the manifold. Uses triangular exhaust manifold flange.

Garret GT15 - Used on later (98?-99)AHU Mk3 TDI similar to K03 in terms of flow. Also clocked to mount under manifold, triangular manifold flange interchangable with K03-006

Garret VNT-15 Used on ALH 90hp TDI engines from 99-03. Integral manifold/turbine housing, turbo is located under manifold. Variable vane vacuum operated.

Spool time with any turbo is entirely dependant on the level of fueling, particularly the off boost setting on the LDA. The size of the exhaust, the injection timing and many other factors also contribute.

SMOKEYDUB · « **Reply #2 on:** February 03, 2007, 11:29:51 am »

who actually is running 28 and up? do you have any problems like andy and I ?

foxracer1 · « **Reply #3 on:** February 03, 2007, 12:56:48 pm »

Quick TD Thats great and exactly what i was asking for. But one thing my friend has a eco and the turbo is of course a kkk. The center section isn't watercooled though so which one does he have.

Now What about Gas turbos for VWs any interchangeability? Obviously they will probably be geared for some high rpm numbers.

entuzijast · « **Reply #4 on:** February 03, 2007, 03:21:55 pm »

He has k14, only RA/SB have watercooled k14....

foxracer1 · « **Reply #5 on:** February 03, 2007, 03:40:51 pm »

Ok after reading that i realized what he was saying. Thanks

foxracer1 · « **Reply #6 on:** February 03, 2007, 03:43:23 pm »

Ok now whats the max amount of boost each turbo makes efficently?

Garret T3- I have heard around 20Psi?
KKK-K24 - smokey dub is runnin 27psi!
KKK-K14 - 18psi?
Garret T2 - ?
KKK-K03-003 - ?
KKK-K03-006 - ?
Garret GT15 - ?
Garret VNT-15 -?

DVST8R · « **Reply #7 on:** February 03, 2007, 03:55:40 pm »

I am currently running 30psi unintercooled, or so on a KKK24 everyday, the motor has about 40K on it, and shows 490psi across the board, and I have never had a HG problem with it. Pump is only moded by huge cut in fuel pin, and minor revlimter mod.

My previous car, I ran 35psi+ and beat the crap out of it, it had every last concivable mod that you can do to a stock pump, I ran both the T3 and the kkk24 on it, and it had enough fuel that it spooled it close to as quick as a k14 on a stock 1.9td. It ran stock fibergasket and stock headbolts, and never had a hg problem. Yes it had serious EGT issues within a short WOT run, but was fun none the less.

Now we need to get Malone or Dave @ PP to chime in about the franken motor as IIRC even with a 1.9hg and studs that it had some pressurizing of the cooling system, but I could be wrong.

sethyboy85 · « **Reply #8 on:** February 03, 2007, 04:53:27 pm »

Garrett T3 Minor adjustment to the fuel screw
10psi by 3k 25psi by 4.5k. I need to intercool it it was boosting to 15psi by 3k but would quickly shoot above 25psi and it's my DD so no popping HG for me just yet, fuel screw was much further in (idle 1400rpm) lol.

motor has 90k on it, a 91 eco motor that was immediatley swapped to the garrett, compression I don't know but it starts in 15F weather without a block heater or using the cold start lever and purrs just fine.

foxracer1 · « **Reply #9 on:** February 03, 2007, 06:48:40 pm »

sethyboy85 : what kinda boost does yours run at 2500-3000 my car runs around there from 65-75 mph and i'm wondering how it would perform on the highway.

sethyboy85 · « **Reply #10 on:** February 03, 2007, 07:03:48 pm »

depends on load and temp of engine but at least 5psi @ 2.5k 8psi by 2800rpm and like I said 10psi by 3k. It might be sooner as I only really watch the boost gauge over 3k to make sure I don't boost too much.
That is with almost no smoke, if I turn up the fuel I can have more

I run down the highway 70mph @ 3.1k or so and depending on grade 2psi to 5psi to maintain that speed without any large hills, the long grade I do pull at highway speed the truckers are going 5-20mph and I am boosting 8-11psi to maintain 75mph

nkb · « **Reply #11 on:** February 04, 2007, 04:26:52 am »

I have a t2 I was running 30+ psi non intercooled or egt. The turbo started showing no side to side play after 25k but has alittle in and out which probably isn't good but could have already been there from having 490k on it. I pulled it for a rebuild and bolted on my spare when the seals went, now no boost and a slow assed car

foxracer1 · « **Reply #12 on:** February 04, 2007, 08:31:04 am »

So were all the Integral manifold/turbine housings VNTs? My friend has one and says it isn't a VNT but i think it is. He said it was off a 2001-02 jetta tdi auto. He also said i could have it!

Typrus · « **Reply #13 on:** February 04, 2007, 09:11:32 am »

I know its not much of a contribution...

A lot of 1Z's came with the Garret GT15. Seems to be a nice turbo, though longevity has been questioned by many. Ours has gone near 200k and the seals seem ok. I attribute that to quality oil and my mom driving soft (stock brakes went 198k miles!)
It spools up fairly quick on the 1.9L 1Z TDI. I think I can hear it start whining about 1700RPM parked doing diagnostics, it gets really noticeable about 2k and sounds peaked out by 2200. I do not have a boost guage, and the N75 is stock (though brand new) on it. So, she's likely pushing whatever the factory set her to.
Again, it seems like a simple and reliable turbo, from my standpoint.

There is a gentleman over on the TDIClub who sells some nice Hybrid turbo's for the 1.9L's. I can't remember his sign on, but I'll try to remember to look it up.

Slave2School · « **Reply #14 on:** February 04, 2007, 09:24:55 am »

Bleachedbora sells the hybrids. They use a vnt-17 compressor wheel.