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VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old July 30th, 2017, 12:21   #46
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it's kind of like coerced hypermiling
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Old July 30th, 2017, 14:00   #47
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I learned to drive in a 1966 VW Bus. And my first VW Bug was a '57 with 36 HP. I understand conserving momentum.
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Old July 30th, 2017, 18:46   #48
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Quote:
Originally Posted by fruitcakesa View Post
this is my mode when driving my 1982 mb 240d; 65 hp and 3600# makes for leisurely acceleration.
I drive it with my foot to the floor most of the time. I love that car:d
3600# ??
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Old July 30th, 2017, 18:48   #49
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Quote:
Originally Posted by wonneber View Post
3600# ??
I believe its 3600 pounds. # = pound sign.
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Old July 30th, 2017, 22:55   #50
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I see the OP states a recorded MPG in the mid 40's. Nothing too special about that, right? I've got a hand calc'd 51 before without trying too terribly hard.

I've got a turbo FS if you want it. haha.

Thanks for sharing though, I've got a special affinity for weird stuff.
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Old July 31st, 2017, 04:31   #51
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Quote:
Originally Posted by bobt2382 View Post
I believe its 3600 pounds. # = pound sign.
That is correct.
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Old July 31st, 2017, 09:31   #52
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Quote:
Originally Posted by bobt2382 View Post
I believe its 3600 pounds. # = pound sign.
I was wondering if it was 3600 ft lbs of torque?
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Old August 2nd, 2017, 11:03   #53
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I've thoroughly enjoyed reading through this thread. Fascinating stuff.

BTW, GO BLUE JAYS!! (even though they're having a bad year)
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Old August 9th, 2017, 13:08   #54
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Default Fuel Economy Updates: 3rd and 4th Tank

Here are some new numbers, in order from most recent to oldest:

4th Tank: Drove 612.5 km on 29.903 L achieving 4.88 L/100 km or 48.2 mpg!

3rd Tank: Installed my old PSI Powerbox to add a bit more fuel and see what would happen. There were unacceptable levels of smoke, so after towing for 110 km I removed the Powerbox and only drove another 200 km before filling up. After 306.9 km I used 17.061 L of fuel averaging 5.56 L/100 km or 42.3 mpg.

[recap from previous updates:]

2nd tank, 100% naturally aspirated, some towing: Drove 777 km on 40.65 L achieving 5.22 L/100km or 45.0 mpg!

1st tank, mostly no turbo: Drove 715.8 kilometers and used 37.908 liters so this tank calculated: 5.3 L/100km or 44.4 mpg!

Previous tanks
with turbo and lead foot: 5.9 L/100km or 40 mpg.

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Old August 10th, 2017, 03:27   #55
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so it sounds like if you are patient and learn to use the momentum, you can get stellar MPGs out of this car..

I think you should look for a turboless manifold to put on there to smooth out the exhaust path. of course its working now (are you seeing any signs of leaks?) so why mess with success...

does your powerbox have any adjustments or is it just plug and smoke?
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Old August 10th, 2017, 19:13   #56
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Quote:
Originally Posted by Growler View Post
so it sounds like if you are patient and learn to use the momentum, you can get stellar MPGs out of this car..
Exactly, it doesn't hurt fuel economy that is for sure. You definetly need a little extra patience. I may have mentioned before, it does scoot confidently across intersections. In first, second and third gears between 1600 and 2400 rpm just tooling around you might forget that the turbo was missing. I think this is due to the RC3 tune and Sprint520 injectors.

Quote:
Originally Posted by Growler View Post
I think you should look for a turboless manifold to put on there to smooth out the exhaust path. of course its working now (are you seeing any signs of leaks?) so why mess with success...
After gutting the exhaust manifold of the VNT mechanism and its two sandwich plates, I am confident that I have more than doubled the flow potential of my current manifold. The exhaust gasses do have to do a back flip then exit out the hole on the left but there is more than twice as much space as before so I can't see a problem here. A picture here would really help I guess, I will try and get one soon. I haven't really checked for leaks, but the exhaust note did sound a bit different the last couple of days.

Quote:
Originally Posted by Growler View Post
does your powerbox have any adjustments or is it just plug and smoke?
It has one tiny potentiometer screw that you can "turn up" but I don't think it really does anything. I'm not really surprised at the results since I get a slight haze at times without the tuning box, especially at lower rpms and higher throttle inputs.

I'm pretty sure I am maxing out the potential of the available air.
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Last edited by NarfBLAST; August 10th, 2017 at 19:16.
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Old August 11th, 2017, 05:39   #57
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Ooooooo....

Just thought of something...

A while back I was watching some videos on "power enhancers" and came across an electrical type blower device.

Now, on its own, it's hokum - couldn't provide anything but the most modest of power gains. But on your car, primed for the addition of extra intake pressure now absent due to the surgically removed turbo...

Something like this: http://www.ebay.ca/itm/BLACK-3-Elect...hVLYpz&vxp=mtr

It's just a furnace vent motor. Heck, I could scam one from the local water-heater boneyard down the road from me.

If you have a 1000w inverter lying around and a little time.... I bet you could hook up a system that provides needed boost on demand. Heck, your shifter has enough switches so you could wire it in...
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Old August 11th, 2017, 07:13   #58
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Quote:
Originally Posted by Windex View Post
I bet you could hook up a system that provides needed boost on demand.
That is the problem, providing actual boost: my understanding is that those fans are only designed to move air, not pressurize it, and that is why they never work. Even if they can boost air pressure in a bench test, as soon as you connect them the an engine they fail to keep up with the volume demand.

I'm just happy that there is one less big thing to go wrong with this car and I can continue to drive it into oblivion, with even better fuel economy!

Speaking of driving in to oblivion: I'm heading to Roadkill Nights in Pontiac Michigan tomorrow. Will be parking in the exhibition area just like last year, so I need to wash the car!



Picture blatantly stolen from this video on YouTube:Swap-Meet Speed for Roadkill Nights! - Roadkill Ep. 56
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The NARFmobile blog / push button ignition / thrustmaster shifter / http://narfblast.com

Last edited by NarfBLAST; August 11th, 2017 at 08:29. Reason: added larger thumbnail
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Old August 11th, 2017, 09:33   #59
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I guess I forgot to post the obligatory picture of "everything installed and working" so here is what the back of my engine looks like after 2000 km:



Note lack of:
- compressor housing
- airbox to turbo intake pipe
- turbo outlet to intercooler pipe
- egr cooler
- heat shields
- VNT actuator

Less parts less problems!

edit: by the way, the actuator moves extremely freely (not connected to anything inside) and it might cause a slight exhaust leak since its shaft is now exposed to the full force of the exhaust rather than being protected by a plate.
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2001 VW Golf NADI 5MT 600,000 km w/ 1.5" lift / Valeo G60/VR6 SMF /
Sprint 520's / RC3 / turbo delete
The NARFmobile blog / push button ignition / thrustmaster shifter / http://narfblast.com

Last edited by NarfBLAST; August 11th, 2017 at 09:38.
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Old August 13th, 2017, 07:41   #60
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Default Last Sheduled Update: This Solution is Permanent!

I don't foresee any changes in the near future so, in summary:

BEFORE the turbo delete:

- RC3, Sprint 520's, 18 lbs Boost
- maybe 130 hp and 200 ft-lbs
- Valeo VR6/G60 SMF/clutch - could be made to slip in 5th gear
- overheating if throttle is held down too long, possible thermostat required, overhearting, puking coolant out the overflow cap (replaced cap, no change)
- spins tires in first thru third when wet if not careful


AFTER the turbo delete:

- RC3, Sprint 520's, zero boost
- maybe 50 hp and 100 ft-lbs
- zero clutch slip
- temperatures stay beween 80-85 deg C no matter what
- very hard to loose traction, even in the wet
- sounds like a tractor

I think I will keep it this way, for now.

Please tune in to The NARFmobile blog for future updates like pictures from the road trip this past weekend, just posted.
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2001 VW Golf NADI 5MT 600,000 km w/ 1.5" lift / Valeo G60/VR6 SMF /
Sprint 520's / RC3 / turbo delete
The NARFmobile blog / push button ignition / thrustmaster shifter / http://narfblast.com

Last edited by NarfBLAST; August 17th, 2017 at 05:04.
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