KKK K14 -> KKK K24?

[klang]

Hey.

I just got my hands on a K24, and I would like to use this to replace my K14 on my 1.6TD.

Do these fit bolt-on to the manifold? Or do I need to invent?
Other problems?

Or does it fit directly with no mods?

Regards, Klang

[X@V]

The oil returb line is not the same. You can use a 1.6TD's oil pan.

You will need the 1.6TD's intake pipe (between the turbo and the air filter).

The manifold and downpipe are bolt-on.

On my 1.9TD I get 22 PSI @ 2300 rpm easily with the K24  :shock:

[myke_w]

When you ditch the k14, let me know, I'd be interested in buying it..

[scopefrfd]

I'm running a k14 on a m-tdi and it runs great...instant spool up.  Makes 23-25psi.  What I always found odd was the reg 1.6td used the bigger k24/t3 turbo and made 68hp.  When vw went with the 80hp gtd..they used a smaller watercooled k14...more hp, bigger nozzles,  and boost yet a smaller turbo.

[935racer]

I would highly reccomend switching to the k24, it is much much more effecient than the k14, the k14 turbo is too small to run on a 1.6, or a 1.9.

[scopefrfd]

Running 25 psi is past the efficeincy range of the k14....but we are talking street engines..rarely is anyone on full boost for longer than a minute or so.  Why would I give up driveabilty..for a 30 sec blast of fun...and then drive around with a turbo that has more lag?  Also the k14 is an upgrade over the earlier 1.9tdi non-vnt turbos and they run 15psi all day with no problems...they were designed to run at approx. 15psi and those things are tiny...a K14 is a nice compromise.  Nothing better than having boost right off idle...rather than waiting for the k24 to come on.  

I would rather have a turbo that is out of it's efficiency range 5% of the time ex. at full boost i.e. a k14, than having a turbo that's out of it's efficiency 50% of the time right off idle and midrange i.e. a k24.  You should always use the smallest turbo that can support the boost levels you want.

Nothing worse then getting the gasser mentality thinking bigger is always better..then you have an engine that's a dog unless it's driven WOT....that gets old very fast.

But, I believe one of your downpipes would be a nice upgrade for the k14

[Kudagra]

its not just boost its also cfm.

 :roll:

[935racer]

I'm definately not a bigger is always better kind of guy, I am an effecient kind of guy (well maybe a little nuts too..) anyways, the k14 would be closer to 50% out of its effeciency range on a 1.9, Hillfolkr says he hits 30psi by 2000 rpm, no custom cam, and stock manifolds, thats not lag by any means.

I've tested the drive ratios of stock turbos on 1.9's the k14 on a 1.9 IDI is some where around 2.5:1, this raises your oil temperature and your intake air temperature. I have found that upgrading to a k24 or t3 with reduce the oil temp by 40 degrees and intake air temp by 100 degrees.

And yes one of my downpipes will definately help the k14 or the k24, the quicker you can get rid of exhaust gas and the less backpressure you have the better.

[scopefrfd]

I understand the boost vs cfm debate, same thing as volume vs pressure in hydraulics.  One of the biggest problems is the restrictive head and cam on a vw diesel when running more boost.  That's the bottleneck on these vw's especially the tdi because you need to kep the swirl chamber mostly intact.   You can't just hog out the intake for better flow.

[935racer]

While the heads and ports suck pretty bad the biggest restriction and reason people arent making big power with these engine is actually the tiny turbos and ***ty manifolds used. These heads can flow enough air for 250+ WHP with out too many modifications.

[roadganstah]

I'm running a K14 on my 1.9TD, and it starts shooting oil in the intake, and my intercooler piping is now full of oil... The fact that im running 20 PSI out of it is probably bad for the turbo, because it has to spool at 100% or so of its maximum RPM... I'm now thinking of upgrading to K24, then at 20 PSI it will maybe spin only 70% of its capacity, which will surely make it last longer :roll:

[scopefrfd]

k14's are strong turbos...just rebuilt it before you blow it up

[roadganstah]

I'll try to watch those things, but the car has now over 305 000 km, and turbo is running full boost since this summer, with a 10mm pump and intercooler... Ran 16.6sec on a 1/4 mile run, not so bad  :lol:

[G60ING]

I know its an old topic but I think its a great discussion and I'd like to see it bumped up. Please let me know if you think I'm crazy for bumping it.

How much better is the AAZ's K14 then the USA's MF's K14?

[burn_your_money]

The AAZ K14 is slightly larger then the 1.6 eco K14. I think it's the cold side that is larger but I'm not 100% on that. I have no idea how it compares to the GTD K14