Turk
Tech Advisor
Guys. Been real busy clutch testing as our snow sucks
I had a hard time getting drag n flies to match the stock weights top end but this weekend after about a gazzilion different set ups I got there.
So now I got acceleration plus top speed.
The only difference is a helix change.
set up is as follows
red hc primary spring
1 bolt & 5 washers in arm(4 washers will give better backshift but slow acceleration)
centre empty
overdrive empty
3 gram bolt in tip
47/43 helix stock secondary setting
Comes out at 8200 & climbs to 8900 & sticks
hit 102 mph in 1000-1200' on speedo
If anyone likes the 2 speeds I got them working about the same with out a helix change
38/20 2 speeds
black hc primary spring
1 bolt & 1 washer in heel
remainder of weight empty
stock secondary set up.
very very similar results as drag n flies
10 hours on these 2 set ups!!!!
I had a hard time getting drag n flies to match the stock weights top end but this weekend after about a gazzilion different set ups I got there.
So now I got acceleration plus top speed.
The only difference is a helix change.
set up is as follows
red hc primary spring
1 bolt & 5 washers in arm(4 washers will give better backshift but slow acceleration)
centre empty
overdrive empty
3 gram bolt in tip
47/43 helix stock secondary setting
Comes out at 8200 & climbs to 8900 & sticks
hit 102 mph in 1000-1200' on speedo
If anyone likes the 2 speeds I got them working about the same with out a helix change
38/20 2 speeds
black hc primary spring
1 bolt & 1 washer in heel
remainder of weight empty
stock secondary set up.
very very similar results as drag n flies
10 hours on these 2 set ups!!!!
kingedwards99
Expert
Should this work the same on the 08 rtx?Better or worse? Thanks
Turk
Tech Advisor
Will work on any short track with some minor changes.
Essarex
Pro
Turk, thanks for all your work and sharing.
this is interesting,,,,I am running the Drag&Fly (60 gram weight base) with 3 bolts and 3, 1.0 gram washers each, in the body, and nothing in the arm, and it holds at 8500 perfectly (on hard pack). I was running the bolt and 4, 0.5 gram washers in the arm, but it over-reved to 8700, so I removed them. This is in a Bender ported Vforce3 reeded 02SRX.
I started a thread on the SRX side about this motor and its hp, and was told that porting and reeds are worth 7 hp.
This tends to confirm in my mind the increase advertised with porting and reeds. BTW, I am also running a roller secondary that requires less primary weight that a button clutch, all else being equal.
this is interesting,,,,I am running the Drag&Fly (60 gram weight base) with 3 bolts and 3, 1.0 gram washers each, in the body, and nothing in the arm, and it holds at 8500 perfectly (on hard pack). I was running the bolt and 4, 0.5 gram washers in the arm, but it over-reved to 8700, so I removed them. This is in a Bender ported Vforce3 reeded 02SRX.
I started a thread on the SRX side about this motor and its hp, and was told that porting and reeds are worth 7 hp.
This tends to confirm in my mind the increase advertised with porting and reeds. BTW, I am also running a roller secondary that requires less primary weight that a button clutch, all else being equal.
Essarex
Pro
what I meant to communicate is that it is advertised as a 15 hp increase for porting/reeds, and the general consensus is that it is only worth 7. I think it is making all of 15 or more given the weight it now swings. (I am also using the red HC spring).
RollRite
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turk which set up you like better
Turk
Tech Advisor
I like the 2 speed set up better but feel more comfortable with the drag n flies.
yox185
TY 4 Stroke Master
Turk does it help with the XTX weak backshifting?
