Hawk Dlx from TXPS

[pete]

for mods .. pipes air box etc..
for about $10 you can build a
unit to adjust the A/F ratio just by
turning a nob...

you just tell lies to the ECU about how hot
the air temp is by the air temp sender..
tell it the air is colder ECU will richen the A/F ratio..
Hotter it will lean the A/F ratio..

I have one on my XT660R..



..

[NzBrakelathes]

Originally Posted by pete

for mods .. pipes air box etc..
for about $10 you can build a
unit to adjust the A/F ratio just by
turning a nob...

you just tell lies to the ECU about how hot
the air temp is by the air temp sender..
tell it the air is colder ECU will richen the A/F ratio..
Hotter it will lean the A/F ratio..

I have one on my XT660R..



..

Yeah just trick the MAP sensor/Air temp to be cooler etc.
But how would you do it when you are in open loop? when it no longer looks at the sensors due to high engine RPM? The RX3 Delphi at 6000 and up RPM runs on the map no longer on the sensors etc.

[pete]

Originally Posted by NzBrakelathes

Yeah just trick the MAP sensor/Air temp to be cooler etc.
But how would you do it when you are in open loop? when it no longer looks at the sensors due to high engine RPM? The RX3 Delphi at 6000 and up RPM runs on the map no longer on the sensors etc.

with a 1 ohm pentameter connected to the air temp sencer wire..

turn the nob to change the resistance..
the temp sencer still works but at a higher or lower resistance level..

don't know about the cheap Chinese units but the jap system takes info
from all sencers thought the rev range in both closed and open loops..

the system on my xt660 is to sensitive to throttle movement and jumps between
closed and open loops... creates surging effect as it keeps richening and leaning
the A/F ratio thinking you are going to accelerate...


..

[PixelJunkie94]

Hey! You guys better be careful sharing your positive tx experiences, a lot of competitive sale reps on these forums...

I too am most excited about the fork upgrades, much beefier than old. EFI could be hit or miss, no one can say for sure. But I think if the EFI proves to be reliable, it will kill the old model hawk and TBR7 sales. Those forks could be a real game changer... I will gladly sell my 19' and pick up a new Hawk.


Chris

[Megadan]

Originally Posted by PixelJunkie94

Hey! You guys better be careful sharing your positive tx experiences, a lot of competitive sale reps on these forums...

I too am most excited about the fork upgrades, much beefier than old. EFI could be hit or miss, no one can say for sure. But I think if the EFI proves to be reliable, it will kill the old model hawk and TBR7 sales. Those forks could be a real game changer... I will gladly sell my 19' and pick up a new Hawk.


Chris

Personally, I have no problem with the forks as they are. The rear swing arm is still a thin shitty bit of box steel that will bend under hard use. I would rather have toothpick forks and a proper rear swing arm with cam adjusters.

Game changer is an overly generous term in my opinion.

As far as the efi being reliable, we will have to see, but I am not holding my breath. I predict a few carb conversions within the first 12 months. If I am wrong, then I will be happy to be wrong.

[PixelJunkie94]

Originally Posted by Megadan

Personally, I have no problem with the forks as they are. The rear swing arm is still a thin shitty bit of box steel that will bend under hard use. I would rather have toothpick forks and a proper rear swing arm with cam adjusters.

Game changer is an overly generous term in my opinion.

As far as the efi being reliable, we will have to see, but I am not holding my breath. I predict a few carb conversions within the first 12 months. If I am wrong, then I will be happy to be wrong.

Im not sure about your unit, but i can grab my front brakes, and watch my forks move about like a set of tree limbs when putting a load on the front end.

Haven't had any issues with rear swing arm yet. How are they failing? Jumping or?

Chris