Thinking out loud about mtdi

[cully]

What is a pop tester out of interest. What does it do and how does it work?

its a oil pump that you can measure the break pressure of manual injectors
based on  a car jack with a pressure gauge

http://www.peachparts.com/shopforum/gene...ester.html

[bashbarnard]

cba to make one. Cheap enough to buy new on ebay with fitting for different injectors. Handy for setting up custom injectors as well.

[Uberderv]

Why are you going M-Hdi can I ask? Why not go for 2.2Hdi with EDC15c2 (learn to remap it) control, BFO VNT, big diesel squirters and figure a way to use a CP3 pump. That would = Much power.

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Also all that would be schweet in a 405 Mi16 shell

[bashbarnard]

Why are you going M-Hdi can I ask? Why not go for 2.2Hdi with EDC15c2 (learn to remap it) control, BFO VNT, big diesel squirters and figure a way to use a CP3 pump. That would = Much power.

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Also all that would be schweet in a 405 Mi16 shell

Why not. I like the ve pump. I like the idea. We've established that engine has choice for injectors. Doesn't stop me strapping a vnt to just because its m-tdi. Have to agree with Darren here. Its the best of both worlds. DI and endless adjustment fast and at home with minimal equipment

[Uberderv]

Not saying its a bad idea, I too like the VE pump its a thing of beauty how it works etc..... Having ECU control would just make it more refined. Once set up you can do it all on a laptop.

[bashbarnard]

Soo have had a little nod from the Mrs saying that I can buy a second car soon so this may come to light in something now. Would love an old 305 but what else is there out there that I can fit an xud into for a track car build and have shits and giggles. Citroen visa......

[Redordead89]

Ask xudlingo if his dad has any 2.1 stuff! Hes been my go to guy for pug diesel engines etc for years! :-)

[Uberderv]

Citroen BX

[thododd]

C15 van

[bashbarnard]

Hmmmm. Still thinking about this.

[bashbarnard]

Lets talk injectors. The angle of hdi is 142, jtd nozzles are 144 i think. Some ive found are 145 for mtdi. But its not just that is it. Maybe hdi nozzles on those injectors. Can shim the first stage injection to test the second i think.

[bashbarnard]

So some useful info for people if they want.
Dsla p142 1477 is the nozzle on the hdi injector.
Dsla corresponds to the nozzle orifice
P is the needle type of 4 mm
The next 3 numbers are spray angle.

The last numbers are just for application apprently.

[bashbarnard]

so anyone got any injector nozzle ideas. i cant seem to find any

[Redordead89]

^^that is true^^ I get ridiculed at work for my Peugeot stuff. My boss told me when I started running veg I wouldn't make it to the roundabout. I've done 10,000 miles. Its all the little bits that add up to make things reliable. Generally not the big money things.

Good on you mate!
306 estates rock! Lol they do btw!! :-)

[RetroPug]

Is it really worth building a derv for track use only?

[bashbarnard]

Is it really worth building a derv for track use only?

This is currently not the reason im discussing this times have changed.

[Matt-Rallye]

Is it really worth building a derv for track use only?

DO NOT let piggy read this

[Piggy]

Why not?!
I've not built a track use only derv!?

[bashbarnard]

Is it really worth building a derv for track use only?

DO NOT let piggy read this

To late. Lol. I have to agree with piggy though. Why not. Something a bit diffrent.

[RetroPug]

Why not?!
I've not built a track use only derv!?

You drive yours daily as well I thought?

I'm not insulting fast dervs I'm just saying for track only it'd be more cost-effective to build a petrol car for track only to go quickly. For speed and reasonable economy yours is great. A track car does not need to balance fuel economy and suitability for daily driving against track-orientated factors.