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Author Topic: MTDI building and tuning. New Holset p.7, plan runing 30 psi!  (Read 23261 times)

Reply #30June 12, 2016, 03:03:20 pm

vic003

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Re: MTDI building and tuning, goal 25 PSI
« Reply #30 on: June 12, 2016, 03:03:20 pm »
Thank you a lot, I'll do that.

Another question, I heard the rev limiter on Iveco pump is set to 3800 rpm how can I adjust it?
Is this the lenght of this part? (I don't know the english name)


Or this control lever?


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Reply #31June 12, 2016, 06:02:04 pm

libbydiesel

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Re: MTDI building and tuning, goal 25 PSI
« Reply #31 on: June 12, 2016, 06:02:04 pm »
It's not the first one. 

The second lever length has some effect, but the governor RPM is really controlled by the rate of the spring.

Reply #32June 12, 2016, 06:25:06 pm

vic003

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Re: MTDI building and tuning, goal 25 PSI
« Reply #32 on: June 12, 2016, 06:25:06 pm »
Ok, that's what I thought. I'll put the control lever of my actual pump, a modified IDI lever, I don't have any thing for different tunings and I never saw a lever like this which is just a spring.
Which effect has the lenght of the pin on the first pic? I think the one that is actually installed in my first pump is shorter, it only limit the fuel flow?

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Reply #33June 12, 2016, 08:51:06 pm

libbydiesel

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Re: MTDI building and tuning, goal 25 PSI
« Reply #33 on: June 12, 2016, 08:51:06 pm »
I believe the pin in the first pic controls the load dependent timing advance.

Reply #34June 14, 2016, 03:16:15 pm

vic003

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Re: MTDI building and tuning, goal 25 PSI
« Reply #34 on: June 14, 2016, 03:16:15 pm »
Ready for rebuild!


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Reply #35June 15, 2016, 08:57:17 am

theman53

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Re: MTDI building and tuning, goal 25 PSI
« Reply #35 on: June 15, 2016, 08:57:17 am »
looks like it has at least 20 minutes of cleaning before it is ready.

Reply #36June 15, 2016, 09:26:38 am

vic003

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Re: MTDI building and tuning, goal 25 PSI
« Reply #36 on: June 15, 2016, 09:26:38 am »
Lol I hate working on dirty pumps so I took my toothbrush with some WD40. But I want to keep the pump as an old pump, don't want a bling bling one 😂

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Reply #37June 23, 2016, 02:56:52 pm

vic003

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Re: MTDI building and tuning, goal 25 PSI
« Reply #37 on: June 23, 2016, 02:56:52 pm »
Hi guys, I would show you my new timing belt!


I just hate the ahu timing belt, I don't find them really strong for a tdi engine with 11mm head.
So I took a ALH new version belt with 141 teeth, that I mounted with an idler pulley off a c6 v6 HDI. I think it would be better.

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Reply #38June 23, 2016, 03:07:27 pm

libbydiesel

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Re: MTDI building and tuning, goal 25 PSI
« Reply #38 on: June 23, 2016, 03:07:27 pm »
1.6TD intake manifold?  What did you do about the mismatch?

Reply #39June 23, 2016, 03:10:03 pm

vic003

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Re: MTDI building and tuning, goal 25 PSI
« Reply #39 on: June 23, 2016, 03:10:03 pm »
Yep it's a 1.6 manifold, I got the engine with it but it will be next upgrade, when I'll be searching for more hp!
What do you call mismatch?

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Reply #40June 23, 2016, 05:18:12 pm

libbydiesel

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Re: MTDI building and tuning, goal 25 PSI
« Reply #40 on: June 23, 2016, 05:18:12 pm »
The intake ports are the wrong shape. 

Reply #41June 23, 2016, 07:48:26 pm

vic003

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Re: MTDI building and tuning, goal 25 PSI
« Reply #41 on: June 23, 2016, 07:48:26 pm »
Oh *** thank to say me that. I bought the car with the tdi in but with a bad pump, 1.6 gearbox etc. I never removed the intake manifold...
Now you say that I will see that. It's just annoying as I rebuild my turbo not long ago.

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Reply #42June 23, 2016, 08:01:05 pm

libbydiesel

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Re: MTDI building and tuning, goal 25 PSI
« Reply #42 on: June 23, 2016, 08:01:05 pm »
You can use an AAZ manifold instead.  The ports will then match and the size/shape is almost exactly the same.  You can bolt on the top elbow from your 1.6TD manifold.  The only real difference (other than the proper port shape) is that the AAZ manifold does not have the extra (unnecessary) blow-off valve. 

Reply #43June 24, 2016, 01:03:05 pm

vanbcguy

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Re: MTDI building and tuning, goal 25 PSI
« Reply #43 on: June 24, 2016, 01:03:05 pm »
Does the timing belt cover still fit with that larger roller?

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Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #44June 26, 2016, 08:13:18 pm

vic003

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Re: MTDI building and tuning, goal 25 PSI
« Reply #44 on: June 26, 2016, 08:13:18 pm »
Hum I don't know, I didn't tried yet. Will see and if no I will cut it a little bit.

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« Last Edit: June 28, 2016, 11:01:48 pm by vic003 »