M35 Afm Troubles

[BoostdR]

Turns out I was low on Glycol, and I overfilled my reservoir. So when the turbo gets warm it boils and over flows the tank(Worse when I was running BP98). Since I reduced the tank level back to where it's supposed to be, replaced the coolant and purged the system it has been stable(touch wood)

I understand how air pockets in the system would cause timing drift...would also cause incorrect mixtures in open loop. The thing is every ECU suffers from the same fate. "Incorrect data input causes incorrect data out"

Will it need head studs, pistons, trans replaced at some stage....yes I expect so. Am I trying to kill it, of course not, Am I trying to make as much power as I can-yes, Am I being reckless because I bought it with a blown turbo cheap-no

If you want to poo poo the EMU to support your link development, the biggest problem with EMU is injector timing. A stand alone will make more power, cleaner exhaust(less fuel smoke) and be better on fuel.

Shift timing is effected from the EMU boost cut clamp, the Shift kit doesn't really help the problem as the TCU try's to bring the shift points back in line with the Target MAP vs load input on the CAN line. If the Link will interface with the TCU CAN it will certainly help keep the trans alive. A TCU reprogram would also be a valuable investment

Edited December 8, 2015 by BoostdR

[stripey]

https://www.google.com.au/url?sa=t&source=web&rct=j&url=https://www.powertraincontrolsolutions.com/Vehicle_Manufacturers/Catalog/PCS_OE_Catalog_1014.pdf&ved=0ahUKEwi4ioaN3cvJAhWFJ6YKHZS1AoEQFggkMAI&usg=AFQjCNH4T3Yl6INQ5dGn-TzI4CGV7ILlgQ&sig2=fnT6BTTenXHV8csXs56HEw

Programable tcu controller

Has support for re5r05a and CAN communication weather it works is another question

[conan7772]

How's this..

I emailed Nistune Developments about the M35 and AFM failure frequencies here.

No one there ever heard of AFMs blowing up due to modifying and/or tuning, nor of M35 issues.

They thinks it's a design fault somewhere and sounds like it could be getting more voltage than it needs through it's power supply.

Suggested regulating the power source or try a GTR AFM..

Anyway worth a try.

[conan7772]

Anyone tried a bypass duct and then recalibrated the AFM output load points to suit?

Haven't come across it anywhere..

[BoostdR]

Commsman bypassed 20-25% air and the voltage blended the signal. May get around blowing MAFs as the output is lower.

[BoostdR]

Good point about the MAF power supply. Would be good to monitor power and ground to the sensor. Could test it with compressed air with the car on but not started.

[conan7772]

An article I was reading suggested a 50 - 60 % bypass with the bypass duct less restrictive than the AFM duct.

[scotty nm35]

If you want to poo poo the EMU to support your link development

A few EMU fitted cars have thrown rods recently... I knew about the timing issues when I installed mine and installed the Fcon as soon as I could. No need for me to 'poo poo' the EMU, every tuner I speak to does that without me saying a word, hence why no-one will tune it these days. Good on you for trying to develop it further, but the only reason I was installing them is, there was no other option.

A little support with our M35 Link development wouldn't go astray, it isn't about selling a heap of units, it's about getting a decent tuning option for those few of us pushing the limits. I know we will struggle to sell enough to recoup even a small part of the costs involved, and there are plenty of headaches with it still to address.

[BoostdR]

Agreed, I'd be keen on the link. Having cam control ability will make the world of difference to power levels over 300kw, well actually it will make a big difference at any level.