Ike

iTrader: (8)

The class doesn't need sexist keyboard warriors either...

If the tires really don't work well for asphalt, then whoever makes the rules for VTA and approves tires should try to find a solution.

Lone Drifter

Wow , You must really love these tires!
Rule Number One of Debate Club, The one who resorts to insults loses the debate.

Greg Sharpe

iTrader: (15)

The HPI tires were too soft for asphalt anyway. We used to blow through a set in less than 2 race days at the more abrasive tracks (T&L in PA) and we'd only make it to 3 race days at the slippery tracks (SI beach). I, for one, welcome cars that slide around. It makes the racing experience SO much better in my opinion.

scirocco14

iTrader: (5)

I'm in agreement with you. Racing is so much better in general if the cars are traction limited, and not power limited. Brings throttle control, driving finesse, setup skills, etc., into play. Racers are constantly complaining about RC racing being so expensive and wallet racing. Well guess what? With the PF tires on asphalt, it's much more fair. At our track, TC4s, TC5s, TC6s, TC7s, Xrays, and others are all evenly matched in VTA. The fast guys are still the fast guys. And we're all having a blast.

Plus it's nice to have a set of tires last for weeks and months, and not a few sessions.

Mark C

moparSRT

So how are you prepping the PF tires for Black CRC ??
After a 4 year break i'm back at it again, opened up a new set of PF's and after several hours and hundreds of laps the tires are still hard as a rock, car pushes on and off throttle where setup changes make no difference. I drove it(drifted) on asphalt to scuff them up but that didn't help either, SXT 3.0 had zero effect, eventually borrowed a used set of HPI's and instantly dropped 2 seconds off my laps. All 7 cars were on HPI's, qualified 2nd ... finished 1st.

So after reading how bad they suck on asphalt but are great on carpet, have to say I'm either doing something wrong(breaking them in) or got a defective set.

Falconz

PF tires on black CRC carpet with a TC4. I just use regular SXT. I had issues with understeer, but was able to tune it out with setup.

Lone Drifter

True they are a little soft , I had better wear then that . when I started with a new set outside I would get 4-5 race days out of them , If I had a set that were broken in on carpet but not really worn I would get 6 or 7 days . Most of the places I race ourside heavily treat the track with sugar water or pop
I used the tires until the Front tires had a ridge of death that tore open , but they worked until then

moparSRT

Changes to ride height, droop, shock location and spring rate made verrrrrrry little difference, the push/understeer was just too much, but with the HPI's it was instantly hooked up.

Are your tires hard/dry/plastic like to the touch?? if not they how long did it take for that to change ??

Lone Drifter

I have been trying to break in a third set, After the first race they will still sliding and slow , when they start getting some traction they start expanding they get better , Good for 5-6 race days having to ajust ride height and gearing , then when the start traction rolling You may have to CA the outter side wall they work again ,Then you can't get less then 5.5mm ride height save them for outside , I don't know after that. My only experience with them outside was at the very end of last asphalt season , they were drift tires , Had to settle for my HPI Vintage Slicks which were sliding but better then PF

Lone Drifter

I think that if PF just tweaked the tire formula by making the current tire softer then the current tire but a little harder then the HPI tire I think the would be pefect for both

moparSRT

How are you breaking them in ?? just laps or soaking them in solvents like Eric recommended for asphalt ... I put hundreds of laps on them and they look and feel like they just came out of the bag.

Billy Kelly

iTrader: (9)

moparSRT

I cant believe the USVTA gods requested and approved a compound so far off HPI, ProLine has been making tires for decades, they would have no problem duplicating the HPI compound which has a proven track record.

Lone Drifter

My first set I was at a offroad race and i would apply every sauce I had , LCG ,SXT LG2 Gravity4 used the first two multiple times (maybe 3 times each) then did the last to once it took all day . then I put them in a ziplock bag they were pretty good., For the set Im trying to break in now I only have LCG , and SXT . Its reall not working too good

DaSilva3525

Maybe try a higher roll center up front to generate some mech grip with some camber gain on top even. Did you go less droop up front?


Not trying to tell you what to do, but maybe throw around some set up changes in here?

-Less droop up front (more droop in rear if you want more off power steering / weight transfer towards the front)
-If you are at -1 toe go to 0
-If you are at -1.5 camber up front, maybe try that extra .5 to get it up to -2
-Sauce whole front if you are only doing half.
-Rear toe, go down to 2.5 or 2.0 if you are at 3 degree current.
-Higher spring rate up front (or try and move shock one hole towards the outside if you haven't) or go progressive front springs
-If you were playing with the front shock position only I would go to the rear and try one hole towards the outside. Ride height split 5mm front if you can get it that low and 5.2 rear or 5.2 front and 5.4 rear.
-Higher roll center up front (mentioned up top)
-More camber gain up front

Just a few off the top of my head. Your Sakura has a lot more flex then most CF or alum chassis cars to you have that advantage on the VTA tire in a way.