80mm exhaust on my T4 2.5 TDI

[gldgti]

Ooooooooops!

as above post says, sorry mate!

i bow down to you all in this public domain and submit my self to any mocking laughter that you may wish to bestow upon me.

on topic - nice xorst!

[GoLfMan]

Derrrr Aydan

[Seano]

Seano,
Has your van got side windows that open? If not you could exit the exhuast out the side in front of the rear wheel - cool man..

Mine's not a van. It's a dual cab chassis. Hmmm.....side exit exhaust. Before anyone suggests it I am not going to try a vertical stack exhaust setup like in the average prime mover....because that would look lame.

[pjbplumbing@bigpond.com]

Fitted the DP Chip yesterday, too easy, hardest part was dropping the belly pan. 20 mins max.
Differance; amazing, and I havent messed with any of the adjustments, the unit is running on basic setting (0), there are 9 adjustments available?
As the van is a work van and a daily work horse I find I have forgotten about the chip and then find my self leaving say a certain intersection which faces up a hill, moving off from first and turning as well - when the turbo and chip kick in and - Oh yeah...smile....that was cool... the van just powers on - all 2 tonne of it!
Next thing will be LPG.

[Greg Roles]

You'll need "hell bus" plates mate!

[benough]

Great to hear that the old wives tale of a turbo diesel not really needing a lot of muffling is true. Also good to hear it's assisting boosting!

So then would that mean that if you did a muffler delete on a TDI GT Sport it wouldn't be any louder?

Can anyone confirm the diameter of the TDI exhaust? 2.5 inches from memory...

[Greg Roles]

A nicely mandrel bent 2.5" the entire way.

Restriction is in the DPF, but yeah that huge rear pancake muff could easily be lost for next to no sound diff, and a few less kgs!

The resonator near the rear axle would be best left there to prevent the booming resonance that makes in cabin noise unpleasant.

[benough]

So what benefit would there be?

It would have to out weigh the potential warranty problems if something ever happens with my exhaust/DPF

[Greg Roles]

The minute you mess with anything, theoretically you also mess with your warranty. The risk is always, totally, yours I'm afraid. I accept that risk.

[chisler]

Fitted the DP Chip yesterday, too easy, hardest part was dropping the belly pan. 20 mins max.
Differance; amazing, and I havent messed with any of the adjustments, the unit is running on basic setting (0), there are 9 adjustments available?
As the van is a work van and a daily work horse I find I have forgotten about the chip and then find my self leaving say a certain intersection which faces up a hill, moving off from first and turning as well - when the turbo and chip kick in and - Oh yeah...smile....that was cool... the van just powers on - all 2 tonne of it!
Next thing will be LPG.

Hi, have you managed to get around to fitting LPG yet? I'm really curious about diesel/LPG
also, if chips give about a 20% increase, and LPG gives about 20% increase, are you expecting a increase of 40%?

[gregozedobe]

I've read several negative reports on LPG in diesels (increased combustion and engine temps, not as big a saving in $$$ as expected).

Unless you are a risk taker, it might be a good idea to find out if anyone has done it to the same engine as you have, what results they got and how satisfied the owner is (preferably after they have run it for a few months, ie after the "honeymoon period" any new purchase enjoys).

[benno]

I've read several negative reports on LPG in diesels (increased combustion and engine temps, not as big a saving in $$$ as expected).

Unless you are a risk taker, it might be a good idea to find out if anyone has done it to the same engine as you have, what results they got and how satisfied the owner is (preferably after they have run it for a few months, ie after the "honeymoon period" any new purchase enjoys).

My old man did it in his Mitsu Canter (big atmo diesel).

He's been all over aus with it and reckons it's a substantial increase in economy and power.

I'm yet to read a truly negative report on it... got a link?

[chisler]

Unless you are a risk taker, it might be a good idea to find out if anyone has done it to the same engine as you have, what results they got and how satisfied the owner is (preferably after they have run it for a few months, ie after the "honeymoon period" any new purchase enjoys).

thats why I'm asking, just curious on the results.
my cars brand new, so I won't be doing any mods while its under warranty, unless I'm 100% confident about it, and from what I can gather, this means mods that void my warranty

[gregozedobe]

I'm yet to read a truly negative report on it... got a link?

The reports I read were in the CMCA magazine and web site (private). One bloke blew up the engine in his motorhome due to excessively high temperatures (twice - he must have been a slow learner), the other was a tech report that IIRC said that he hadn't found any significant performance improvements on vehicles that were in a good state of tune, and you can only run a maximum of 30% gas, so could only save a mazimum of 30% of the cost diffrence between gas and diesel.

... and from what I can gather, this means mods that void my warranty

That's putting it mildly ! I think the VWA warranty people would run a mile if you had any engine problems at all after a LPG conversion to your engine.

[chisler]

I'm yet to read a truly negative report on it... got a link?

The reports I read were in the CMCA magazine and web site (private). One bloke blew up the engine in his motorhome due to excessively high temperatures (twice - he must have been a slow learner),r a LPG conversion to your engine.

I've been reading both positive and negative things, reading online articles, and forums.

1 problem about getting information on this, is that it only seems to be Australia creating diesel/lpg systems for small vehicles. and by small vehicles I mean 4wd/suv's and not trucks and industrial stuff.
I think the government lpg rebate might have something to do with this, and the fact we have so much lpg here.

being in lpg land, I think this is something to keep an eye on, but I wouldn't do a lpg conversion at this point in time, unless I fully understand the process, which I don't.