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Engine Specific Info and Questions => IDI Engine => Topic started by: theman53 on November 13, 2010, 05:38:39 am

Title: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 13, 2010, 05:38:39 am
Is this Garrett 1852v or the gt2052vb too much for the IDIs? From what I have heard I think it would be good, but I know nothing about turbos in general. I have found many and for the money maybe cheaper than the VNT 1749vb.
Here is one on ebay that isn't bad a price http://cgi.ebay.com/ebaymotors/VW-Volkswagen-T4-2-5-GT2052V-454192-0001-Turbocharger-_W0QQcmdZViewItemQQhashZitem588af6340dQQitemZ380288513037QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

and this one in UK http://cgi.ebay.com/MERCEDES-SPRINTER-VAN-2-2-OM611-TURBOCHARGER-GT1852V-/310251353211?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item483c6bf47b

granted I would have to make a manifold*modify or adaptor*, downpipe, and oil lines again, but that isn't hard. I just need you guys that know the engines if this is a perfect fit or way too big or maybe as laggy as the k24 and t3 or whatever. I guess I am wanting more total power and the same kind spool I have now.
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: R.O.R-2.0 on November 13, 2010, 10:15:52 am
i definitely like my 1749.. it spools low, and hard.. and they are easy to find. and no need for a manifold.

my personal preference tho..
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 13, 2010, 10:21:33 am
But there are different 1749 turbos. From what I gather the 1749vb is the one that most are using for more power, but upgrade that to a 17/22 on TDIs. This is the 1.6 IDI so I don't know what to think, hense me asking the "experts":D
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 13, 2010, 10:37:51 am
I would try to run no more than 30 but usually around 25-27psi...depending on how cool I can keep the air. My k24 is not laggy at all for me I don't think so if it is that good I would be happy. Do those fit the bill?
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: MJF on November 13, 2010, 01:18:21 pm
Boost is not that relevant measure, more important is how much air you can blow through engine. GT2052v from 2,5 V6 TDI Audi is good for 170hp@26psi, T4 gt2052v has slightly larger turbine side IIRC. Will spool quicker than stock T3/K24.
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 13, 2010, 07:20:31 pm
what turbo would you need for 200+HP
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: MJF on November 14, 2010, 05:48:17 am
GT2359V or GT2260V for example if vnt is wanted.
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 14, 2010, 09:32:41 am
How much power does the K24 support?
Thanks for the info looking forward to more and looking for those listed now:D
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: R.O.R-2.0 on November 14, 2010, 10:02:00 am
if you are trying to make 200+ hp out of a 1.6, then why not take the 1.6 out, sell it, and drop in atleast an AAZ? i would go balls out and get the TDI engine.. 200 hp is EASY to obtain with a TDI.. you damn near have to be god to break 200 hp with a 1.6...
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 14, 2010, 10:09:04 am
I think 200 with a 1.6 will be fairly easy with the right turbo. I already have the giles pump.
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: R.O.R-2.0 on November 14, 2010, 10:20:17 am
you still gotta keep the head on it tho. and 250 hp (for all rights and purposes) is maxed out on a 1.6D

ive been told, that to venture into the 200 hp range, you have to be very good, and have DEEP pockets..

head studs will keep the head clamped down, but the head will still flex with enough boost crammed under it..

and even if you do get 200 hp, its gonna be no fun as a daily driver.. your gonna need a HUGE turbo to flow that much air.

compounds maybe?
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 14, 2010, 10:27:02 am
Maybe I am wrong. Maybe not 200 but right there and reliable would work for me. Also as a daily and fun. I have put a ton into the car and am now kind of disappointed. An intercooler is the next move, but if the "big turbo lag" is what the car is now without the IC I could live with that. With the Giles pump and injectors, ported and polished head with undercut stainless valves I think with the addition of a VNT appropriately sized will be in the ball park. I also have a CIS manifold if needed, but will use my AKI 76 built mani with the VNT whenever I get to it...
Thanks MJF for those lists. I could find the GT 2359 reasonable, but the 2260 not at all. Also, would you know what cars these came from and if they had non VNT models with the same # to watch out for.
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: R.O.R-2.0 on November 14, 2010, 10:35:31 am
for a FUN daily driver.. the vnt 17 works great. but it wont directly fit on a mk2/3 car without a special passenger side mount.. kinda like that super expensive mount Shortysclimbin was trying to sell.. i think he would have sold some had they been reasonable about the prices..
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 18, 2010, 07:38:12 am
GT2359V or GT2260V for example if vnt is wanted.
On these turbos what is the spool like? And they are both for around 200 hp? I have fuel to spare...I turned the boost pin to the aggressive side that basically put it back to where Giles had it and it looked like the boost gauge couldn't keep up with how fast it was building with my kkk k24. It also turns into a heat pump since it isn't intercooled now. I put it all back :( I figure if I go VNT why settle for 140 or 150 or even the 176, might as well go big, but I daily this so it needs to spool as good as the K24 if possible. Or I probably will go with the 176 ish size :D
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: lord_verminaard on November 18, 2010, 07:47:19 am
The VNT17 on a 1.6 will boost nicely up into the high 20s easily with even moderate fueling.  Lag is minimal, giving some boost off idle, but not really spooling fully until 2000 rpms or so.  

That sounds like heaven to me.  The T3 doesn't even start to spool at 2000 rpm's with my foot buried in it.

Gotsta find me one of them.  :)

Brendan
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: 410 on November 18, 2010, 08:49:46 am
I think the gt1852 would be the perfect vnt for your engine.  It would be the perfect daily driver.  The gt1852 will spool way faster than your k24 and be way more efficient in the top end.  Malone has been testing with this turbo and getting awesome power and lower egts compared to the 17/22 hybrid on tdi's.  The price is right too!  I installed a gt1749va on mine and the power increase over the k14 I had is unreal.  I just bought a gt2256 off ebay for dirt cheap which I will install this winter.  There is another one for sale right now on ebay currently at $180.   
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: myvolkswagen on November 18, 2010, 12:47:44 pm
So the vnt 17 and bigger won't fit behind the engine? Is that right?
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 18, 2010, 06:39:11 pm
I think the gt1852 would be the perfect vnt for your engine.  It would be the perfect daily driver.  The gt1852 will spool way faster than your k24 and be way more efficient in the top end.  Malone has been testing with this turbo and getting awesome power and lower egts compared to the 17/22 hybrid on tdi's.  The price is right too!  I installed a gt1749va on mine and the power increase over the k14 I had is unreal.  I just bought a gt2256 off ebay for dirt cheap which I will install this winter.  There is another one for sale right now on ebay currently at $180.   
So what about the ones MJF posted. I could give a little spool time up for cooler/efficient air up top. I can spool the K24 I have with the 3" downpipe no problem so if I could have that good of spool time with better flow in that same time :D :D :D

To myvolkswagen:  The 17 will fit no problem. It is what comes some 1.9TDI engines...It will need to be controlled somehow as they use factory electronics in the TDI engines. The 17 will be upside down compared to the normal K24 turbo, but it will fit. The Rear engine mount will have to be modded or fabbed for the intake to the turbo to get air on MK2 and 3, but MK1 it isn't there.
Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: 410 on November 18, 2010, 07:18:06 pm
Malone tuning has been working on larger vnt turbo kits and he has some good things to say about the gt1852v.  Check out what he has to say about it on his website.  One thing that caught my attention was egts which reminded me of your situation.  When pushing 170hp+ egts tend to get out of hand with a vnt 17 and the 17/22 hybrid.  The gt1852v runs much cooler at its max recommended boost of 26psi. 

I know this info is for a tdi but I have found that a 1.9 tdi flows about the same amount of air as a 1.6idi.  The idis tend to flow more air than a tdi of the same displacement.

If your pocket book is your guide than my vote is for the used vnt2256v on ebay right now with the current bid of $180.  Or spend a bit more and get the genuine brand new gt1852v that you posted in your first post.

Title: Re: Questions about VNT turbos. Specifically gt1852v
Post by: theman53 on November 18, 2010, 07:28:07 pm
How can a "good" turbo cost 180.00? I won't spend it right now as I am kind of waiting for regcheeseman to get the electronic controller made and selling ... and more $$$ I also need the intercooler first so it will be a while. I figure if I am going to do it I should only spend the $ once so research as much as possible and buy it one time.

I did read on malone's site that is what got me thinking. The ones that MJF posted have me curious as well though. 800 or so gets them new and if it works perfectly I would save for that.