What Have You Done To Your Tdm Today?

[fixitsan]

Good morning people,

 

I have a question 

 

Is there someone who knows how to modify  the fuel pressure regulator on a TDM 900

to get more pressure 

I did some reading about this on other motorcycles.

 

http://www.vfrdiscussion.com/index.php?/...lator-mod/

 

Have a nice day

 

Greetings, Frits from Holland

 

 

Frits, i think I may have mentioned this mod previously with you.

 

It is quite crude, it is a complete enrichment of AFR all across the rev range, at all loads.

It is better for an engine to run too rich than too lean, but, if it runs rich constantly then the fine film of lubrication at the piston rings gets washed away and you get increased wear.

 

The ideal situation is to have fuel enrichment when under load, during acceleration, but during straight and level flight you have no gains, and possible problems, by running consistently rich at a constant speed.

 

 

EDIT- [I think I saw a fuel pressure sensor on the fuel rail, which means that if you do increase fuel pressure, then the sensor (if present) will detect the high level and tell the ECU to adjust the injector timing duration to compensate (most ECU's do this).....Is there a pressure sensor ?]    - I just checked the service manual, no pressure sensor

 

 

You can get adjustable regulators, at least it keeps your standard one intact... http://www.ebay.co.uk/itm/UNIVERSAL-SILV...Sw3mpXNEhk

 

 

I used to assemble cheat boxes for diesel cars with common rail fuel systems and variable pressure regulators, to detect acceleration demand, which boosted fuel pressure. I suppose you could run two regulators in parallel, one switched through a solenoid such that when the intake vacuum drops (hard acceleration demand) the second regulator set for a higher pressure is used.......but after all that, is it going to be worth it ? - The ECU is already programmed to enrich the mixture under acceleration, like carbs having an acceleration fuel pump,...I don't think you will feel much of a difference between an air fuel ration of 13:1 more than 14:1  ...... The best tuning method is a replacement ECU or tuning the existing one, in my opinion

This post was last modified: 06-07-2016, 09:24 AM by fixitsan.