Went to glamis yesterday to do some tire testing with Dave from Fullerton Sand Sports.
we had 4 XP9's and one turbo RZR-S testing tires with Dave yesterday, conditions were cool, sand was damp, drag raced in 2wd and 4wd.
most of us agreed on two combos that were very equally matched in drag racing and duning and hill climbing.
All XPs were stock powered, one very nice SDR build was there, I will get some pics uploaded later from my phone.
First some tires we tested.
26 STU blasters, not cut full paddes #1
26 stu blasters comp cut and staggered (60/40?)
26 STU Blaster Pros comp cut and staggered ( these are 1" wider than std)
Skat tracks (stock tire height) 8 paddle extremes Flat top 12.50 wide carcass
Skat tracks 10 cup extremes round carcass, near stock tire height
Skat track 9 cup extremes round carcass, a tad shorter than stock tire
fronts
ITP dune stars uncut
ITP Dune Stars shaved sides, center rib showing
Front buffs to match the 26 blasters.
and one ride with aired down stock dirt ITP 900 tires.
the feedback from the turbo S holeshot was from the 8 cup flat carcass Skats ( at 6.5 psi) with shaved ITP dunestar fronts, he jumped a half a car on the XP9's with their best setups and stayed there in 4x4. the feed back from the fronts in the dunes was that the Shaved ITP fronts pushed a little more than non cut front ITP's. With 9 cup round carcass, he touched the rev limiter on the start and we jumped out on him.
the 8 cups on the XP when I ran them, let loose in the dunes on corners at an unpredictable rate, for a newer driver, I feel this may be a bad thing. also the blaster pros jumped out on the 8 cups by about 1/2- 1 car length and stayed there.
the top two combos we found for the xp were....
Comp cut STU blasters staggered with matching front buffs
and the 9 cup extremes (round top carcass) in stock height, and either front buffs or the shaved ITP dunestars. the fronts will be preference in how you drive in our opinions. I will be getting the 9 cup and front buffs myself.
the drag racing and hill climbing came down to almost who pushed the gas pedal first.
the full STU blasters un cut, seemed too much as the report was that he had to in the gas pedal way harder in the dunes, ( I noticed this with the 10 cup skats also) where as the blasters needed less pedal for the same speed and climbing.
the 10 cup extremes Dave said may be better for the XP's in Oregon dunes, I pulled 8400 rpms, no problem with those tires in a drag race.
IMHO, for those who are not real super agressive, I would run a 9 extreme and uncut ITP dunestar fronts, a little shorter roll out than stock. good duning and turning
I mentioned the stock tires, in 4wd, any paddle we tested took the holeshot on the stock dirt tires set at 6 psi by about 4 lengths from a dead stop, as expected, but interestingly, that was it, I stayed right at the same 4 car gap til 65 mph, no gain or loss by the sand tires over the stock tires, ( mind you the sand was damp).
Anyone that is going to hop up or mod their Xp will easily be able to run the 10 cup extremes and comp cut Blaster pros, turbos XPs will prob be able to handle full blasters, lightened.
had some good dune rides also, even though it rained part of the time.
Good to meet, Dave, Larry, Tim (SDR), Steve (dasa) and others.
Rog
we had 4 XP9's and one turbo RZR-S testing tires with Dave yesterday, conditions were cool, sand was damp, drag raced in 2wd and 4wd.
most of us agreed on two combos that were very equally matched in drag racing and duning and hill climbing.
All XPs were stock powered, one very nice SDR build was there, I will get some pics uploaded later from my phone.
First some tires we tested.
26 STU blasters, not cut full paddes #1
26 stu blasters comp cut and staggered (60/40?)
26 STU Blaster Pros comp cut and staggered ( these are 1" wider than std)
Skat tracks (stock tire height) 8 paddle extremes Flat top 12.50 wide carcass
Skat tracks 10 cup extremes round carcass, near stock tire height
Skat track 9 cup extremes round carcass, a tad shorter than stock tire
fronts
ITP dune stars uncut
ITP Dune Stars shaved sides, center rib showing
Front buffs to match the 26 blasters.
and one ride with aired down stock dirt ITP 900 tires.
the feedback from the turbo S holeshot was from the 8 cup flat carcass Skats ( at 6.5 psi) with shaved ITP dunestar fronts, he jumped a half a car on the XP9's with their best setups and stayed there in 4x4. the feed back from the fronts in the dunes was that the Shaved ITP fronts pushed a little more than non cut front ITP's. With 9 cup round carcass, he touched the rev limiter on the start and we jumped out on him.
the 8 cups on the XP when I ran them, let loose in the dunes on corners at an unpredictable rate, for a newer driver, I feel this may be a bad thing. also the blaster pros jumped out on the 8 cups by about 1/2- 1 car length and stayed there.
the top two combos we found for the xp were....
Comp cut STU blasters staggered with matching front buffs
and the 9 cup extremes (round top carcass) in stock height, and either front buffs or the shaved ITP dunestars. the fronts will be preference in how you drive in our opinions. I will be getting the 9 cup and front buffs myself.
the drag racing and hill climbing came down to almost who pushed the gas pedal first.
the full STU blasters un cut, seemed too much as the report was that he had to in the gas pedal way harder in the dunes, ( I noticed this with the 10 cup skats also) where as the blasters needed less pedal for the same speed and climbing.
the 10 cup extremes Dave said may be better for the XP's in Oregon dunes, I pulled 8400 rpms, no problem with those tires in a drag race.
IMHO, for those who are not real super agressive, I would run a 9 extreme and uncut ITP dunestar fronts, a little shorter roll out than stock. good duning and turning
I mentioned the stock tires, in 4wd, any paddle we tested took the holeshot on the stock dirt tires set at 6 psi by about 4 lengths from a dead stop, as expected, but interestingly, that was it, I stayed right at the same 4 car gap til 65 mph, no gain or loss by the sand tires over the stock tires, ( mind you the sand was damp).
Anyone that is going to hop up or mod their Xp will easily be able to run the 10 cup extremes and comp cut Blaster pros, turbos XPs will prob be able to handle full blasters, lightened.
had some good dune rides also, even though it rained part of the time.
Good to meet, Dave, Larry, Tim (SDR), Steve (dasa) and others.
Rog
