21 px 300 10 hours stage two 82.16 mph on phone gps - very happy with results

[AZRIVERBOY]

I purchased my 21 RXPX 300 with audio on 1-31. After about 5 hours I flashed it with with the Bone stock flash and was hitting 77-78 on the dash. I then disd the following a went back to my riding spot and re tested yesterday with the following Mods.

Home made rear air 4" with K & N filter
4 2" holes in top deck with Frogskinz covering them.
Gutted Intake manifold Flame Arrestor
Reflash to Stage 2 on my Maptuner
stock impeller

I weigh 255lbs

Colorado Rver Parker Az about 500' elevation
water temp 60
air temp 78
river current about .5 mph
3 bars fuel

82.16 on phone GPS APP, dash read 83 and flashed 84

Very happy with these results!

[ptscon]

Awesome numbers for those mods, I'll be slapping on a larger charger and a cam when mine arrives.

[r1goombah]

Awesome numbers for those mods, I'll be slapping on a larger charger and a cam when mine arrives.

Which charger and cam you going with? My 135 just cam in and have a east side cam thinking about installing

[ptscon]

Which charger and cam you going with? My 135 just cam in and have a east side cam thinking about installing

Will be running same cam as I do in my current 260 https://activejetsport.com/product/s...race-camshaft/ still deciding between 135 or 142 charger.

[AZRIVERBOY]

SOME ADDITIONAL PICTURES OF INTAKE AND REAR VENTILATION. AS WELL AS INTAKE MANIFOLD WITH GUTTED FLAME ARRESTOR.

[1tommygunner1927]

I purchased my 21 RXPX 300 with audio on 1-31. After about 5 hours I flashed it with with the Bone stock flash and was hitting 77-78 on the dash. I then disd the following a went back to my riding spot and re tested yesterday with the following Mods.

Home made rear air 4" with K & N filter
4 2" holes in top deck with Frogskinz covering them.
Gutted Intake manifold Flame Arrestor
Reflash to Stage 2 on my Maptuner
stock impeller

I weigh 255lbs

Colorado Rver Parker Az about 500' elevation
water temp 60
air temp 78
river current about .5 mph
3 bars fuel

82.16 on phone GPS APP, dash read 83 and flashed 84

Very happy with these result

Impressive! 82 mph at what RPM?

[AZRIVERBOY]

When I made that run I wasn’t really paying attention unfortunately. earlier in the day I was hitting 8300 RPM so my guess is somewhere between 8300 and 8400

[1tommygunner1927]

When I made that run I wasn’t really paying attention unfortunately. earlier in the day I was hitting 8300 RPM so my guess is somewhere between 8300 and 8400

Excellent. Are you planning any further mods?

[AZRIVERBOY]

Excellent. Are you planning any further mods?

Retarded cam mod. I am good with a 85MPH ski that is reliable!

[1tommygunner1927]

Retarded cam mod. I am good with a 85MPH ski that is reliable!

Retarding the cam will lessen holeshot with no other changes, but may increase top speed slightly.