T4 2.5TDI bi-vnt-turbo
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Printed Date: 20 Apr 24 at 13:36
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Topic: T4 2.5TDI bi-vnt-turbo
Posted By: shadowmaker
Subject: T4 2.5TDI bi-vnt-turbo
Date Posted: 03 Jan 09 at 00:39
|
The build up has started. Recepy: -Evo3 head. It will be taken as far as it needs. Currently using Evo2 with bigger valves etc. -New intake manifold. -Performance cam. This will be something new and maybe it will need multiple takes to get it right. -Twin turbo setup: I'm going to stick with the current one (gt23v-AMG) and add another vnt, gt37v to it. Luckily I have a big trunk... Things will be electronically controlled. This is the hardest part. I hope I get it right. For you that haven't ever seen a gt37v, this one is HUGE. Even HX50 is small compared to it. -Additional A/W cooler. -Fueling mods to get power up to 6000rpm, but I think I'll eventually need an additional pump to keep that bigger turbo happy. That's not going to happen with this build as this is too tricky as it is. -New rods, lighter/modified pistons, knife edge crank. -Lightweight SMF + twin carbon disc clutch. This is going to be the worst part for driveability. -New gearbox with some exotic stuff in it: longer 1st, LSD from WRC Focus, dog engagement. -330mm brakes in front + 8 pot calibers. -Original rear discs + 4 pot calibers. -Anti-lag system. -Weight shaving up to 200kg, but that big turbo isn't going to make it easy (as it weights about 40kg). -New angel-eye lights with custom look in the nose section. 6xHID. I think I have almost every part ready, but it's not going to be a walk in the park... Van: http://i5.tinypic.com/455m13p.jpg - http://i5.tinypic.com/455m13p.jpg Old engine compartment with 350hp, 700Nm: http://i16.tinypic.com/2laep0n.jpg - http://i16.tinypic.com/2laep0n.jpg In action: http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 http://www.youtube.com/watch?v=BDUgkusl6Uk - http://www.youtube.com/watch?v=BDUgkusl6Uk ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Replies:
Posted By: m666blp
Date Posted: 03 Jan 09 at 08:35
| nice. |
Posted By: monsho
Date Posted: 03 Jan 09 at 08:48
| ooof |
Posted By: jason k
Date Posted: 03 Jan 09 at 09:05
|
thats quick!!! ------------- Bcs shallowest surf award winner 2006 camperjam 2011 chug and tug team member aberdare. south wales newest member of karmann korner no longer the only moderator to manage to ban himself |
Posted By: Baxter
Date Posted: 03 Jan 09 at 14:06
Nice to see you here, I've followed your rambling on other forums!
 |
Posted By: Tee4
Date Posted: 03 Jan 09 at 21:04
| Twin...turbo. And I thought Garlic bread was the future |
Posted By: ELVIS
Date Posted: 03 Jan 09 at 21:23
Take it same from 'freds' , audifans etc etc ?
|
Baxter wrote:Posted By: fast crew cab
Date Posted: 04 Jan 09 at 06:22
Man that thing hauls along. does it have a mechanical fuel pump, efi or pdi type set up?
 |
Posted By: shadowmaker
Date Posted: 04 Jan 09 at 09:00
|
Original TDI with custom made 12mm rotor head (11mm originally) and race520 nozzles. With the build I'm going to try to find bigger nozzles with more holes on them (now 5).
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: veedubdaz
Date Posted: 05 Jan 09 at 20:03
I just love it  ------------- ONE LIFE LIVE IT TO THE FULL /T3 aaz/69 beetle/st200 |
Posted By: VWT5 Vanman
Date Posted: 06 Jan 09 at 00:03
| Nice motor, love the quarter mile time :D that would put some of my friends cars to shame lol. You seem like the man to talk to when it comes to bhp out of a 2.5. |
Posted By: shadowmaker
Date Posted: 06 Jan 09 at 08:17
Tearing it apart.  New Isotta chairs.  THE turbo.   ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 19 Jan 09 at 10:03
Intake will be looking something like this (left one). Long runners are going to be taken from D24 Volvo (6syl). Here's some pics of the home made collector.  Small end.  Also decided to make a girdle to beef up the bottom end. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: taigagreen
Date Posted: 19 Jan 09 at 16:07
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Simply crazy :D Kyllä!!!
------------- Tage is my name :D Too many T3's... |
Posted By: shadowmaker
Date Posted: 19 Jan 09 at 17:44
It's always nice to see two dots above "a" or "o" as that means then you aren't far away from home.  BTW, we are building almost similar T3 too. It has VW's 2.4L inline six IDI engine with two vnts and uses Porsche gearbox. +350hp hopefully... ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 04 Feb 09 at 17:20
Here's my new dual disc clutch. I'm a little afraid how it is going to behave... Here's a donor for my dual plenum intake. Runners are 50cm long. 
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: m666blp
Date Posted: 04 Feb 09 at 20:33
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are you going to equalise the air to all five cylinders in the plenum. nice collector btw. |
Posted By: shadowmaker
Date Posted: 05 Feb 09 at 06:12
That is my goal with dual plenum intake. With diesels (unlike gassers) too much fuel without cooling air will destroy your engine. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: dub dub campers
Date Posted: 08 Feb 09 at 11:47
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It must be the way the Vodka is filtered, that makes you finish go that "little bit further" ------------- dub dub Stuart Roper, Lampeter, Mid Wales 07966 270767, dubdubcampers@aol.com |
Posted By: shadowmaker
Date Posted: 08 Feb 09 at 18:48
We have a long winter here and nothing to do.  Some progres.
__________________  I think the old one served for some four years IRC.  ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 23 Feb 09 at 22:51
|
Now things are cooking. Exhaust is ready and intake is nearly ready...
   It's time to take of the head and see what can be done to it. Gearbox is long way from finished, but it seems that it can be done with the diff lock I have. Sadly it will require a lot of machining and special (=expensive) parts. Custom made injectors are on their way and pump is under some serious construction. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 24 Feb 09 at 19:42
Manifolds were test fitted today for clearances. Both seemed ok.  It's time for sauna and refresments... 
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: taigagreen
Date Posted: 24 Feb 09 at 19:53
|
Top notch :D
------------- Tage is my name :D Too many T3's... |
Posted By: shadowmaker
Date Posted: 23 Mar 09 at 21:32
Some ongoing electrical work.  Next one I don't recommend to anyone as lightening crankshaft is plain madness...  Original:  Under construction:  PLEASE DON'T DO THIS AT HOME!
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 13 Apr 09 at 12:52
|
Here's my friend's VW T3 with VW's D24TD I-6 IDI engine. HY40V + gt18v,
Porsche gearbox and every single gram of weight taken from rotating
masses inside the engine/FW/clutch. Not a pretty one as the engine sits under the back of the van exposed to dirt, mud, salt, snow...  THE TURBO, althought that's a small one compared to mine. It's a story of his life.   Tiny gt18v can be seen in this picture.  Progress with my own project is slow as it's time to modify the head once again. The EvoIII-version will have it all... ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 11 Dec 09 at 22:13
|
It has been a while. I had my back surgered and got a baby girl, my third child. Now everything seems to be back to normal and I can focus on my projects.
Some ongoing aluminum work.  ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 11 Dec 09 at 22:14
Here's my new dual airbox setup from Fiat Ducato under construction.
Two 3" airducts will feed those from a roof scoop and boxes will be
fitted into the trunk divider wall. This way I can use big paper
filters instead of free-flow crap and have enough flow for far more
than needed. 
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 11 Dec 09 at 22:22
It's not going to look this spacy after I'm done. I'm going to need my trunk with second turbo, all the plumbing, heat shields, wastegates, WAIC, scavenge pumps...
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 14 Dec 09 at 22:22
Here's a dyno from my friend's ATV (Yamaha Raptor 660 originally, now with VNT charged Aprilia 1000cc V-2 engine) with 7psi which is the way they left
it because slipping clutch. VNT stop screw is also in mild setting for
now. Here's a vid from the dynorun. http://www.youtube.com/watch?v=0rrpn1SZmM4 - http://www.youtube.com/watch?v=0rrpn1SZmM4 My new WAIC between the stages. It will be big enough as LP boost will only be 1,6-1,8bar max. Sadly it's heavy.  Suspension parts for sandblasting and painting. New urethane bushings and adjustable coilovers to follow. I already have big 8 pot, 330mm front brakes and Brembo calipers for rear. 
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: onkobonko
Date Posted: 14 Dec 09 at 22:49
|
Great project, keep us updated!!
------------- '99 Caravelle 2.5Tdi. Pheaton winter rims. Day van conversion. |
Posted By: taigagreen
Date Posted: 15 Dec 09 at 09:36
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The Finns always seem a notch crazier than the rest of us :D Great stuff!! ------------- Tage is my name :D Too many T3's... |
Posted By: Bluebays
Date Posted: 15 Dec 09 at 10:32
 Brilliant!
------------- |
Posted By: shadowmaker
Date Posted: 17 Dec 09 at 18:51
|
DIY-drilled 300mm vented rotors from VW T5 + 4 pot Brembo calipers from
Seat Cupra. Should be more than enough for the rear. Got also Wilwood
hydraulic handbrake and Wilwood brake balance regulator. Test fitting.  Some colour matching will be needed to go with D2 330mm front set.  I got also a promise from AVO to make me a custom coilover set (3-way adjustable). I'll just need to get them some measurements before they can start. Transmission gets only dog engagement (and LSD if I can find suitable) and original gear ratios as we are not sure how much it will take. No point making expensive gears to a weak box. Maybe after testing it out first. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 01 Jan 10 at 10:59
Got suspension parts from sandblasting/painting. Polyurethane bushings are on their way.  Some colour matching for Brembos to suit D2 calipers. Used semi-matt clear coat to match hard anodised finish on those D2s. Silver/white texts and these are ready to go.  Year 2009 has come to its end. Happy New Year 2010 to everyone!!! ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 07 Jan 10 at 20:55
Polyurethane bushings.  Hmm... There seems to be a big hole in the back of the van...  
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 12 Jan 10 at 18:33
My fake 4 pot D2. Located at the opposite ends of the van will fool eye
even more + my camera is distorting colours somewhat. I bet their are
going to be just fine. More poly bushings.  It is beautiful outside as there's frost everywhere and only -4C. Sadly I'm too educated and need to work inside...  
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: Baxter
Date Posted: 12 Jan 10 at 20:45
| Have you elongated the rear trailing arm mounts? |
Posted By: shadowmaker
Date Posted: 12 Jan 10 at 21:45
|
No. Those mounts are original.
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: Rubbadub
Date Posted: 13 Jan 10 at 08:17
I have to say that this is one hell of a job you are doing here My god man you might as well stick a rocket in the bloody thing GOOD WORK
------------- Paul, Sarah, Cleo n Erin - Bristol 85 Poptop Westy Jkr |
Posted By: shadowmaker
Date Posted: 13 Jan 10 at 09:49
Well, sad thing is that my previous engine setup would have made into 10' or low 11' on a beetle with +200kph trap speed, but could only do 14,5s on my heavy van.  Next target is low 13' or even high 12' and still keep it driveable for everyday use.Even though my van wasn't the fastest street car around, I just love the surprise it gave to a chipped 1,8T owners...  ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: Baxter
Date Posted: 13 Jan 10 at 10:35
|
If you elongate them you will be able to set the rear geometry, seems a worthwhile mod while you have the arms off.
Lowered vans end up with too much negative camber and the tracking is on the piss.
|
Posted By: shadowmaker
Date Posted: 14 Jan 10 at 16:50
|
As I'm going to use this everyday (gravel roads, snow in the winter...) this van is not going to be ultra low (-40mm to -50mm max). Also some negative camber is good for occasional track days.
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: Baxter
Date Posted: 14 Jan 10 at 17:17
| Even with moderate lowering though you can't set the geometry, plus the bushes are not inline so as you lower the van you get lots of toe in. |
Posted By: shadowmaker
Date Posted: 14 Jan 10 at 19:32
|
Unfourtunately I suck with suspension setup, so everything will be left original as long as I can get this van moving again. I just try to get quality parts for it at the moment. There's so much to do... After that it's a whole other plan. Fourtunately I do have good friends competing with F3 cars and they will do suspension setup for my van. Although they are more used to RWD cars, I do have more faith on them than me. If something needs to be modified, it will... ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 20 Jan 10 at 20:05
Here's my fake D2 rear brakes. They are bigger and much stronger than original front set.
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 13 Feb 10 at 09:04
Fitting new angel eye headlights from long nose. I think it will look mean after I'm done... Of course it would be much easier to make it a long nose as I already have all the parts for it. It's just that nothing is ment to be easy with this build... This way I can also shave some 30kg out of my heavy van. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 16 Feb 10 at 16:19
 Here's the original look.  I'm trying to make the hood out of CF eventually, but really don't know how it's going to work out. We'll see. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 20 Feb 10 at 20:12
Here's the rear ARB finally in place (shiny metallic piece on the lower arm is the end of ARB and on left upper corner you can see ARB's attacment to the body). Front brake kit. 330/32mm with 8 pistons. 
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: knobstar
Date Posted: 22 Feb 10 at 20:22
|
Keep going dude! Love the Beast It will be so awesome to see this tearing up the track this year; as if the previous 350bhp wasn't enough Are you aiming for over 400bhp? |
Posted By: shadowmaker
Date Posted: 22 Feb 10 at 22:36
|
This time I'm trying to have a suspension and brakes to go with the engine + shave some 100-200kg out of it. Last setup was all about the engine... I'm aiming for 450bhp and ability to rev it over 6000rpm with power. This way I can stay with the same torque level than previous setup. There's going to be ~20kg less rotational masses in the engine this time. 1/4 mile target is low 13' or even high 12'. One can always dream... There's so much to do... ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: shadowmaker
Date Posted: 23 Feb 10 at 07:22
|
Oh, I forgot to mention that it's going to be a daily driver even on winter. Hopefully.
------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: knobstar
Date Posted: 23 Feb 10 at 12:27
|
wowzers! Is it actually possible to rev a diesel that high? I thought the reason most diesels topped out at 5000rpm was because of their inability to combust the mixture quick enough? However, I'd always thought that there must be some way of overcoming this, be it with the engine's geometry or whatever.... |
Posted By: silverbullet
Date Posted: 23 Feb 10 at 13:25
|
That's what I thought too. Audi did manage it with the LeMans V10 TDi's but they had a pretty big budget... ------------- Have I missed anything? |
Posted By: knobstar
Date Posted: 23 Feb 10 at 13:51
| Did they? I thought that big v12 of theirs redlined at 4kish? |
Posted By: knobstar
Date Posted: 23 Feb 10 at 14:04
| Despite what I've said; this discussion would indicate that it's possible: http://forums.tdiclub.com/showthread.php?t=238192 |
Posted By: shadowmaker
Date Posted: 23 Feb 10 at 16:23
I know a DI engine that makes best power @6900rpm on diesel only. It's a racing engine but still. There are also many 3.0L TD MBs (IDI) here revving past 7000rpm, though best power is usually around 6000rpm. The one on the TDIClub link is a purpose build for drag only and makes best power around 6500rpm. It's a shitty build, but silly fast. Problem with our TDIs isn't flame speed, but our VE pump and it's inability to deliver fuel at high revs. I'm hoping to change this with some internal mods to the pump. My pump is under some tests and maybe I'll know better after some few next weeks. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: knobstar
Date Posted: 23 Feb 10 at 18:50
|
Wow - you learn something every day! I really didn't think it was possible! Not that I don't believe you, not for one second, but do you have a link to any info on said DI racing engine? Amazing stuff |
Posted By: shadowmaker
Date Posted: 23 Feb 10 at 22:07
That's why I'm so interested with diesel engines - love to learn something new every day... No links. Sorry. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: famous phil
Date Posted: 23 Feb 10 at 23:09
|
Absolutly brilliant great work ,few questions if you dont mind ,, what diametre are the evo valves ,and will you be fitting steel inserts between the seats ,nice work on the crankshaft any mods for the conrods ,,, ------------- Prototype automotive engineering design and development |
Posted By: shadowmaker
Date Posted: 24 Feb 10 at 05:47
I was using +2/+2mm valves with evo2 head and now using +4/+4mm valves with evo3. This also means relocating valves as otherwise they would hit the bore wall. New bigger seats of course, no inserts. Conrods are custom made I-type and over 100g lighter than originals. Those are also 2mm longer. Pins are made from titanium and are ~80g lighter + I'm shaving some 20g out of those pistons too. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: famous phil
Date Posted: 24 Feb 10 at 22:21
|
Hi, very nice , I've just been rebuilding a 2.5tdi and thought the valves were a bit on the small size - and if was to fit larger ones like you say would mean relocating them ,
Regards Phil ------------- Prototype automotive engineering design and development |
Posted By: shadowmaker
Date Posted: 25 Feb 10 at 06:29
No need to relocate valves with +2/+2mm. Cam upgrade makes a nice improvement also. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: famous phil
Date Posted: 25 Feb 10 at 10:05
|
Hi, would you recommend a particular make of cam just for a mild upgrade ?,
I've just bought a new VW cam but thought the one fitted to the Volvo might have been better for a mild power increase ------------- Prototype automotive engineering design and development |
Posted By: shadowmaker
Date Posted: 25 Feb 10 at 14:27
Volvo and VW cams are identical. For daily driver 260/260 and 9,6mm lift is very good upgrade. About 10% power increase through rev range, only barely noticeable lag down low. With it 5000rpm is also possible. I can get you one made, but there are many other options too. 99% of 1.9TDIs uses the same specs when upgraded. There are other, more powerful specs too, but those are not good for road use. I'm also going to test new designs later when my engine is running. ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: knobstar
Date Posted: 20 Mar 10 at 10:47
|
Hey man, Have you managed to squeeze in any work on your beast in the last month? Here's hoping Matt |
Posted By: shadowmaker
Date Posted: 21 Mar 10 at 18:07
Sadly not really. Been really busy with work/family... Have been trying to get some parts for the engine and suspension, but that's all... There's so many things that needs to be done and maybe I'm too picky... ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: knobstar
Date Posted: 28 Apr 10 at 08:05
|
Any luck this month finding time for it dude?
|
Posted By: shadowmaker
Date Posted: 02 May 10 at 11:55
Nope. Actually I have troubles to get all the special parts for the engine ATM and there's no point to do anything before I get those. Maybe I could get the CF hood and suspension done, but I have been drowning under workload. There's no way my van is going to run this summer... On the other hand I have been focusing on my two bike projects and my gasser/VNT project, which can be running this summer. <fingers crossed> ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: Monza
Date Posted: 03 May 10 at 01:22
| Awesome. Could have just put something daft in it from the off. always wondered why Diseasels run out of puff at 4k :) |
Posted By: shadowmaker
Date Posted: 03 May 10 at 10:00
Every day use diesel engines are targetted for economy and emissions from the factory. I know there are direct injection competition engines ($$$$$) which make their max power around 7000rpm. So I know my 6000rpm target is possible, but I don't know yet if my budget is enough for it... I do have a budget you know... ------------- VW T4 2.5TDI 370hp, 750Nm http://www.youtube.com/watch?v=hkSTslJf7Z4 - http://www.youtube.com/watch?v=hkSTslJf7Z4 |
Posted By: monsho
Date Posted: 03 May 10 at 12:22
Diesel is a slow burning fuel compared to petrol, it has a higher calorific value but longer burn time, this means that at high revs there isn't enough time to burn the fuel fully, meaning the economy and efficiency drops a lot, hence the engines are designed to run at lower revs where there is the time to get the full burn and best efficiency. One way of changing this is adding a catalyst - for example adding LPG into the system. a squirt of gas can help the speed of burn and make sure that all is burnt, so at higher revs this aids the efficiency meaning you get more power at higher revs. As shadow maker says, most diesels are made for efficient driving in normal conditions, but you can get some serious power from them too - Audi/Peugeot Le-Mans cars for example...
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Posted By: knobstar
Date Posted: 26 Jul 10 at 21:05
| Any progress over summer, dude? |
Posted By: Jay@G.K
Date Posted: 13 Aug 10 at 19:28
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excellent read, job well done fella ------------- Regards, Jay |
Posted By: knobstar
Date Posted: 12 Oct 10 at 11:34
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What's the latest on this, dude? Has garage season started yet in Suomi?! Matt |
Posted By: knobstar
Date Posted: 31 Jan 11 at 19:23
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Surely there must be an update by now for what is one of my fave builds on the web?! Matt |
Posted By: knobstar
Date Posted: 05 Apr 12 at 14:59
| Am I the only one who wants to know what happened next with this uber van?! |
Posted By: jason k
Date Posted: 05 Apr 12 at 17:10
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since shadowblokey not been on here since 2010 i think you are..... ------------- Bcs shallowest surf award winner 2006 camperjam 2011 chug and tug team member aberdare. south wales newest member of karmann korner no longer the only moderator to manage to ban himself |