lrp spx stock spec
06-28-2009, 11:40 PM
#451
I have ran it in both #7 and #8 geared from 5.0 - 5.8
Today I ran mainly around 5.5 on #8. The track is fast and flowing. The straight is 140 feet. Air temps were in the mid 90's with track temps at 140.
With a Novak the temps were only around 135. With a Hacker it was 160.
Today I ran mainly around 5.5 on #8. The track is fast and flowing. The straight is 140 feet. Air temps were in the mid 90's with track temps at 140.
With a Novak the temps were only around 135. With a Hacker it was 160.
One of the tracks I race at is similar is size with a very fast layout with a couple of tight sections. The FDR you are running is close to what I use, and it is very visible and audible when the timing advance kicks in. If its not obvious to you, then I would go down on pinion size until you can see it kick in at the half way point of your straight away. My car has good low end torque and nice top end with the SPX. But when running high FDR I have noticed you don't want to let it stay on the advanced timing for too long, or you really start to heat the motor quick because of all the revs. Hope this helps
06-29-2009, 09:02 AM
#452
When you are on profile 7 or 8, do you actually see or hear the advanced timing come on while you are going down the straight away? Maybe your ESC is defective One of the tracks I race at is similar is size with a very fast layout with a couple of tight sections. The FDR you are running is close to what I use, and it is very visible and audible when the timing advance kicks in. If its not obvious to you, then I would go down on pinion size until you can see it kick in at the half way point of your straight away. My car has good low end torque and nice top end with the SPX. But when running high FDR I have noticed you don't want to let it stay on the advanced timing for too long, or you really start to heat the motor quick because of all the revs. Hope this helps
One of the tracks I race at is similar is size with a very fast layout with a couple of tight sections. The FDR you are running is close to what I use, and it is very visible and audible when the timing advance kicks in. If its not obvious to you, then I would go down on pinion size until you can see it kick in at the half way point of your straight away. My car has good low end torque and nice top end with the SPX. But when running high FDR I have noticed you don't want to let it stay on the advanced timing for too long, or you really start to heat the motor quick because of all the revs. Hope this helps
07-01-2009, 12:13 PM
#454
Been running an FDR of 5.95 with a Novak motor on profiel 8 and love it - its ballistic at reasonable temps but I am using an LRP heatsink/fan too.
Paul
07-02-2009, 08:14 AM
#455
Guys, Will i do damage to my motor if i gear it too high to begin with? Im thinking of starting at around 6.0 as we usually gear it around 5.1 for 10.5 at my track. Or should i be thinking higher like 6.5 maybe? I dont want to cook my new motor straight up. Cheers Benzaah
07-06-2009, 08:21 AM
#456
Does anyone have a recommendation for profile 7 or 8 on a large track running a 13.5 DUO? The straightaway is probably around 70 feet.
07-06-2009, 08:58 AM
#458
Rubber. My mistake...around 120 foot straight
07-06-2009, 02:30 PM
#460
isnt that a bit too high ??
we have a 40m straight and i use 45 to 4.6
still messing with the gearing but i never went that high ??
an i too low ?? my motor temps are about 70 degrees C ??
we have a 40m straight and i use 45 to 4.6
still messing with the gearing but i never went that high ??
an i too low ?? my motor temps are about 70 degrees C ??
07-06-2009, 04:00 PM
#461
All I know is on a straight approx 120 feet, Im getting passed like I am standing still by a KO BMC. I was running 5.4 on profile 8 with a DUO on middle timing.
07-06-2009, 08:31 PM
#462
Main thing is try different gearing.Don't be afraid to try something that sounds a little too safe.Motor to motor of the same motor design,gearing is a little different for every one.I run on a track with a 135 back straight.My gearing is what I suggested.I also run with guys who ran the recent REEDY race.The guy who won made the suggestion to me for this particular gearing and I am not giving up anything to anyone there.You have to undergear before you can find out your overgeared.
07-07-2009, 09:56 PM
#463
Tech Apprentice
gearing
just bought new spx
i was tolled to drop 4 teeth on pinon,but i run 64 pitch so not sure???
And put on profile 8 and never change??
I run 10.5 novak most times,outdoors tracks,medium size,fdr 5.27
onroad with lrp tc spec.
Any advice would be great.
THANKS
i was tolled to drop 4 teeth on pinon,but i run 64 pitch so not sure???
And put on profile 8 and never change??
I run 10.5 novak most times,outdoors tracks,medium size,fdr 5.27
onroad with lrp tc spec.
Any advice would be great.
THANKS
07-08-2009, 12:56 AM
#465
mine is quicker but i think there is more to come
i want from around the 4.0 mark to 4.55 and it's quick but from what i read here i will try between 5 and 5.5 when i get home from holiday
also i would try program 7 and 8 with nothing else on