RB Matrix RW Question
09-03-2009, 07:54 PM
#1
RB Matrix RW Question
Can anyone confirm the base needle settings for the Matrix RW. Silly me did not check the initial settings when I started the "run in" and the RB website (and instructions) says 1 turn for the LSN and 8 turns for the HSN.
8 turns on the HSN seems very excessive and when the needle is screwed out to this point, it is way past the flush point (about 3mm). I ran it like this for the first few tanks during the run in and it was running very very rich.
This is OK for running in for the first couple of tanks, but not really very good for speed & fuel economy.
Thanks
8 turns on the HSN seems very excessive and when the needle is screwed out to this point, it is way past the flush point (about 3mm). I ran it like this for the first few tanks during the run in and it was running very very rich.
This is OK for running in for the first couple of tanks, but not really very good for speed & fuel economy.
Thanks
Last edited by Andrew Barr; 09-03-2009 at 08:12 PM. Reason: grammer ;)
09-03-2009, 08:12 PM
#2
Can anyone confirm the base needle settings for the Matrix RW. Silly me did not check the initial settings when I started the "run in" and the RB website (and instructions) says 1 turn for the LSN and 8 turns for the HSN.
8 turns on the HSN seems very excessive and when the needle is screwed out to this point it is way past the flush point (about 3mm). I ran it like this for the first few tanks during the run in and it was running very very rich.
This is OK for running in for the first couple of tanks, but not really very good for speed & fuel economy.
Thanks
8 turns on the HSN seems very excessive and when the needle is screwed out to this point it is way past the flush point (about 3mm). I ran it like this for the first few tanks during the run in and it was running very very rich.
This is OK for running in for the first couple of tanks, but not really very good for speed & fuel economy.
Thanks
If lots of smoke coming out from pipe and cant pickup speed then is too rich.
Has the engine finish running in? if yes then start lean it!
if you going to moorebank on Sunday I help you to tune it. marking sure your throttle servo is work too
09-03-2009, 08:23 PM
#3
I finished running it in last Sunday and was trying to get the final tune. When backing off the throttle it was holding high idle rpm for about 7 seconds and then dropped back down to a reasonable idle. When I hit the throttle again it was stalling and eventually came up to speed.
My throttle servo than gave up
and I could not continue to tune it.I am going to put this motor into my 733 and once I have it all set up, i'll get you to have a look. Unfortunately I cannot get to the track until mid October due to a massive amount of family commitments over the coming weeks
Six weeks of no racing is going to be a killer.
09-03-2009, 08:42 PM
#4
GOOD MAN ! You went RB !
Need more RBs in the onroad scene
Need more RBs in the onroad scene
09-03-2009, 09:15 PM
#5
Thanks Tommy.
I finished running it in last Sunday and was trying to get the final tune. When backing off the throttle it was holding high idle rpm for about 7 seconds and then dropped back down to a reasonable idle. When I hit the throttle again it was stalling and eventually came up to speed.
My throttle servo than gave up and I could not continue to tune it.
I am going to put this motor into my 733 and once I have it all set up, i'll get you to have a look. Unfortunately I cannot get to the track until mid October due to a massive amount of family commitments over the coming weeks Six weeks of no racing is going to be a killer.
I finished running it in last Sunday and was trying to get the final tune. When backing off the throttle it was holding high idle rpm for about 7 seconds and then dropped back down to a reasonable idle. When I hit the throttle again it was stalling and eventually came up to speed.
My throttle servo than gave up
and I could not continue to tune it.I am going to put this motor into my 733 and once I have it all set up, i'll get you to have a look. Unfortunately I cannot get to the track until mid October due to a massive amount of family commitments over the coming weeks
Six weeks of no racing is going to be a killer.
09-03-2009, 11:32 PM
#6
It drops to the correct idle and then burbles initially when I hit the throttle.
I just need the initial settings so I can start from scratch, problem is the initial settings (as per the RB manual) seem too extreme.
Most of the other RB .12 motors have a LSN setting of 2.5 and HSN setting of 5, which seems more appropriate.
Worse case scenario is I come out and have a race and test it
09-04-2009, 12:11 AM
#7
I think the LSN was too rich and HSN too lean.
It drops to the correct idle and then burbles initially when I hit the throttle.
I just need the initial settings so I can start from scratch, problem is the initial settings (as per the RB manual) seem too extreme.
Most of the other RB .12 motors have a LSN setting of 2.5 and HSN setting of 5, which seems more appropriate.
Worse case scenario is I come out and have a race and test it
It drops to the correct idle and then burbles initially when I hit the throttle.
I just need the initial settings so I can start from scratch, problem is the initial settings (as per the RB manual) seem too extreme.
Most of the other RB .12 motors have a LSN setting of 2.5 and HSN setting of 5, which seems more appropriate.
Worse case scenario is I come out and have a race and test it
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