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Engine Specific Info and Questions => mTDI Mechanical TDI Conversions => Topic started by: RyanJames170 on November 22, 2015, 03:07:16 pm

Title: AAZ pump on TDI
Post by: RyanJames170 on November 22, 2015, 03:07:16 pm
If a person put a AAZ pump on a AHU tdi.. how far could they push the pump as far as torque output? If I wanted more Power, what would I have to do as far as swapping out parts to make more along the lines of 230lbs of torque?

I am doing reserch, into doing a MTDI and what pumps I can use..
Title: Re: AAZ pump on TDI
Post by: vanbcguy on November 22, 2015, 11:08:51 pm
It will be a laaaame weak engine with an AAZ pump.  The AAZ pump has a smaller pump head than a TDI and won't even come close to stock TDI power.

You'd be MUCH better off using a Land Rover 200TDI or 300TDI pump.  They bolt on with a little work, have an 11mm head (which is the "big" size for TDIs) and already have a suitable advance curve to run a TDI.  Getting 230 ft-lbs will be reasonably easy with that pump, provided you have the other supporting mods you need (turbo/injectors).
Title: Re: AAZ pump on TDI
Post by: RyanJames170 on November 23, 2015, 12:54:14 pm
so there is not way to turn the AAZ pump up or mod it easly to make that kind of power?
Title: Re: AAZ pump on TDI
Post by: RabbitJockey on November 24, 2015, 07:02:18 am
no its not designed for direct injection it can not create enough injection pressure to properly run a tdi.
Title: Re: AAZ pump on TDI
Post by: libbydiesel on November 25, 2015, 09:26:08 am
It's more a matter of fuel quantity than pressure.  Regardless, the combination of the 9mm plunger, control collar lever assembly, accel lever offset, inadequate dynamic advance, etc... all combine to make for a poor mTDI pump. 
Title: Re: AAZ pump on TDI
Post by: urmas on November 28, 2015, 10:33:04 am
With an unmodified pump the setup will return very little power and good mpg.
Title: Re: AAZ pump on TDI
Post by: RyanJames170 on November 29, 2015, 07:38:29 pm
i have decited to get a pump made.. as i need to make over 200lbs of torque for the TDI to work.
Title: Re: AAZ pump on TDI
Post by: vanbcguy on November 29, 2015, 08:03:31 pm
Sounds like a good plan. The Rover pumps can often be had somewhat cheaply but if you have a definite power goal and can afford a custom pump that will be a good way to go.

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