TA Radial psi ?

[Jes]

hello. i am running 275-60-15 TA's on 8.5" Centerlines.
what is the best psi to put in them for best traction ? street and strip if different.
any other traction tips for these tires ?

also, i plan to go to ET Streets someday. i'm thinking these don't need to be heated(burnout) and still have much better traction than TA's. is this true ?

thanx


btw, i did a little searching and came up with nothing

 

[Jes]

oh-yeah. i am running a 3.08 non-posi right now. but will be going to a 3.73 posi soon.

 

[UNGN]

A burnout really does two things. It cleans the junk and dust off the tires and opens up the pores of the rubber. ET streets without a burnout maybe no better than radial TA's if they've picked up a lot of dust and junk.

However, if they spin, the spinning will clean and open them and their traction will improve. The TA will spin and the traction may never improve.

Trying to get traction with a pair of full tread radial TA's is almost a lost cause. When they wear down more and the tread blocks gets less squiggly, the odds of getting them to stick are much higher. Optimum pressure for that size tire would be around 18-24 psi, when the tread is worn down more. On a new pair, 36lbs will be the same as 18psi.

 

[YGETV8]

I actually managed to get a couple of high 1.9 60' in my GN on my new (then) 265/50-16 Radial TAs, but that was NOT the norm! Very inconsistent, as UNGN implied. Like, anywhere from 2.3-1.98 with what I thought was about the same launch technique! If you're gonna use 'em at the track, just do a small dry burnout and cross your fingers!

 

[WarpSpeed]

Yeah, they're a little greasy when not worn down half way(the TAs.) I found 25-28# to work best for traction and maybe 30 for normal driving,, on regular GN wheels anyway. I'd say warming the tires does help alittle.

 

[Kansas T]

I got a 1.83 60 ft on 275/50/15 radial TA's set to 20psi. The 275/60/15's I tried liked around 16psi. Every tire will vary. The biggest factor in making a radial tire hook is the driver. Practice make perfect

 

[Jes]

thanx K T . i know these are not race tires, but i have 4 of these tires and no use for them otherwise. + little room to store them for later use, so i want to use them up before going to ET Streets.

i will try 20 psi, i think i'm at 24 now. 1 thing i AM worried about is them coming off the rim, or spinning on the rim. any thoughts on this ? i think i'm going to align mark them.

 

[Kansas T]

I've never had one come off or even slip on the rim. They have a stiff enough sidewall that there is little chance of that happening.

 

[UNGN]

Originally posted by Jes
i will try 20 psi, i think i'm at 24 now. 1 thing i AM worried about is them coming off the rim, or spinning on the rim. any thoughts on this ? i think i'm going to align mark them.

Don't worry too much about that. You'd have to be down below 10 psi for spinning on the rim to happen and you'd be stupid to try to take corners hard with the tires this low anyway (the only way they would come off) At pressure that low, the tread will cup and distort and most of the traction you get is from the deflated basketball effect and not from the actual rubber interlocking with the pavement.

In the latest car craft those idiots admitted they don't know how to use drag radials so they deflated them to 9 psi and were high fiving each other over 1.70 60ft times in a 10 second mustang. Idiots.

Also, spinning on the rim is no big deal unless you are using tubes. With no valve stem to shear off the tires could spin on the rim all day (they won't)

Regular radials will spin on the pavement long before they will spin on the rim. 16-18 psi should present zero problems. Do a "launch" burn out on concrete to check for even darkness across the tread. adjust tire pressures accordingly. If its light in the center add more pressure.

 

[orion]

jes's wheels

jes! where did you find those tires? and how much?

 

[UNGN]

Re: jes's wheels

Originally posted by orion
jes! where did you find those tires? and how much?

Tirerack has them for $74 each

 

[Jes]

thanx UNGN, great advice ! i will follow your lead.