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Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI Power Enhancements

TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old November 3rd, 2013, 02:20   #1
noxneon
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Default request for big mileage on big torque motors.

Is there anyone out there that has big mileage on a big torque motor ? I'm trying to focus on the 300-400 ft lb of tq range. Also the 200-300 range for a stock bottom end. Bonus points if that bottom end never comes out of the car. I'm serious here guys. When I talk about the work my Jetta can do, stock, at over 231k miles, trans clutch and turbo included, its unbelievable. So I want to take this a step further. The video that was posted in my thread about diesels doing hard work, the one with the old school bug and the roof hitch, has really got me thinking. I need to make my way up to Vancouver, BC and get one of the deals I've seen on TDI mk4 wagons. I already even have the diesel truck I could use to tow it back. I think the wagon would be the ideal setup, because its got the greatest surface area on the roof to spread the force of whatever load would be connected. I basically am trying to "copy" the dyno graph of my diesel truck, but with the motor in my diesel car.
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Old November 3rd, 2013, 08:21   #2
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Those are pretty high numbers, but are completely doable if you throw enough money at it. Then again, I don't know how the transmission will like that.

Just off the top of my head...

Turbo (17/22 VNT)
Front mount intercooler
PD150/custom intake
3" downpipe + exhaust
11mm pump + lift pump
Race 520s
Head studs
Cam
Monster clutch + LSD (if you're smart)
Port & polish?
Motormounts (stockies would probably get torn right off the first pull)

For the price of all those parts without labor you could probably pick up a pretty clean F350 Diesel or similar.
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Old November 3rd, 2013, 08:51   #3
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I sure haven't seen many deals on TDI wagons around here!

The only ones that ever seem to pop up under $10k are salvage title or thrashed.

You definitely can build a TDI that will get in to that power range no problem but yeah, it isn't going to be cheap. I'm working on one right now, my build budget has almost matched what we paid for my wife's '04 1.8T wagon back in the spring. I'm going all out though....
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Old November 3rd, 2013, 11:42   #4
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Dump that 17/22 go with a gtb 2260 and 12mm with race520
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Old November 3rd, 2013, 14:32   #5
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I think he wants mileage too...so a big turbo is out.
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Old November 3rd, 2013, 16:16   #6
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If you want to pull stumps with big TQ at low rpm, stick to a 49mm turbo

GTC1549vz is the cat's meow right now.

http://www.ebay.com/itm/Audi-A4-A5-A...item35c29db2ac

http://www.shop.ngc-turbotechnik.de/...-vw-gruppe.php

I would go for that or a 3rd gen 49mm VNT way before a 1752 or 2260

400ft-lbs and 200bhp shouldn't be a problem. Go easy on driver's request (except when pulling stumps) and FE should be 40+MPG too
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Old November 3rd, 2013, 17:03   #7
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Quote:
Originally Posted by loudspl View Post
If you want to pull stumps with big TQ at low rpm, stick to a 49mm turbo

GTC1549vz is the cat's meow right now...
Can't agree more!

Like this one: http://www.ebay.com/itm/300967161647...84.m1555.l2649
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Old November 3rd, 2013, 19:17   #8
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Here are two builds I have personally seen run on the dyno:

http://forums.tdiclub.com/showpost.p...01&postcount=1

http://forums.tdiclub.com/showthread.php?t=312340

I have driven to Las Vegas with Jeremy in his car. Got 37/38 mpg on that trip and the road to Vegas is not a slow freeway. You do 70, and you are getting passed at 80-85 That was with 380 lb/ft of torque
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Old November 4th, 2013, 03:42   #9
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Vancbcguy: you guys seem to have all the good deals compared to my area.
The plan was to find a mkiv wagon that had a bad engine and or trans to do the build on. Or find a good running higher mileage car ... but I already have a diesel f250. The thing is it will never reach 20 mpg... ever. Straight drive c6 ford bb auto trans, 6.5k lbs dry weight and 4wd get me about 19 mpg, and that's way down at like 55 mph. I don't actually think I'll even need more then 225-250 lb ft of torque. I'm just trying to mimic the trucks dyno curves as much as possible.
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Old November 4th, 2013, 07:02   #10
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Your truck was rated at 180hp and 345 ft/lb at the crank (or less if you have a 6.9)

It is also routed through an auto trans and 4x4 stuff for more power loss. At a conservative 15% loss you would put down around 153hp and 293 ft/lb. Should be fairly easily attainable with a TDI.
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Old November 4th, 2013, 09:22   #11
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yeah my truck is the 6.9. 175 hp, 315 lb ft of torque. but i get my torque at 1400 rpms. but it has never not towed what we put behind it.
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Old November 4th, 2013, 09:32   #12
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Not going to get your torque peak nearly that low with a little 4 cylinder. Faster turbo spool at a lower RPM will help burn the fuel it takes to build a bigger earlier torque peak. But at some point it also becomes a simple matter of displacement, 1.9L is a whole lot less than 6.9L.
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Old November 5th, 2013, 00:18   #13
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I agree with the suggestion above: GTC1549VZ all the way!

I've done a day of driving at 61.8MPG with my '10 Passat running a GTC1244VZ
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Old November 5th, 2013, 03:05   #14
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I'm waiting to see a dyno of the GTC1549vz. I see a lot of talk but not much in hard numbers.
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Old November 5th, 2013, 04:57   #15
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Quote:
Originally Posted by Digital Corpus View Post
I'm waiting to see a dyno of the GTC1549vz. I see a lot of talk but not much in hard numbers.
No dyno plots yet, but TDIMeister has shared some numbers on it:

Quote:
Originally Posted by TDIMeister View Post
I know of someone who just purchased a GTC1549VZ, P/N 03L 145 721B, fitted into the CR170. I believe this will be the hot turbo for people who want a moderate performance upgrade -- supports max PR=3.4 and 0.18 kg/sec (24 lb/min) -- without sacrificing one-iota of spool-up response from stock, if not even better. Will keep updated.
24lbs/min should do 200-215 smoke free bhp and PR is very impressive on these new generation comp wheels vs. the small comp exducer sizes!
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'83 VW Jetta 1.6TTD - Holset HE200WG-5cm + Custom Holset HX30W-12cm compound, 12mm Dieselmeken pump, Rosten rods, girdle, Ported AAZ head with custom valves, valve springs, Ti retainers, camshaft +++ WIP
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