How much PSI on M/T DRs?

[PsYcHo GN]

I picked up a set of 275/50/15 M/T drag radials for my weld wheels. I plan on driving with them almost daily when I switch between my 19"s and my welds. What is the psi everybody is running on the street for economy and performance?

 

[TampaTurbo]

I run 30 on the street and 15 on the track.

 

[S2V6RACER]

Shoot Otto J a PM. He just ran a 1.38 60' with his radials. That's not far off my best with slicks.

 

[SGRIM]

Shoot Otto J a PM. He just ran a 1.38 60' with his radials. That's not far off my best with slicks.

Is that street radials or the true drag radials?

 

[Otto J]

M/T drag radials with 14PSI.
This is what Dave Fiscus recommended and it worked well

 

[silverT-PA]

radials

on my mt drag radials, i run 30lbs on the street and 18-19 at the track.
my car runs 11.50's. my best 60 ft has been 1.52! car weigh's 3420 w/o driver.
mike s

 

[SGRIM]

Are we talking this-

Or this?

Awesome 60 Otto!

 

[Otto J]

The top one

 

[SGRIM]

So that is the one most people refer to when they say "Drag Radial Racing" right?

I am stepping up from a 8" to a 10" wide 26" tall, hoping it makes a big difference!

 

[my 1st gn]

size

M/T drag radials with 14PSI.
This is what Dave Fiscus recommended and it worked well

what size mt drag raidials were you runing

thanks jay

 

[turbocody]

i run 16psi and cut a 1.47 60' the other night, this was with a 5.5psi launch off t-brake. my car is 3600 w/o me in it.

 

[my 1st gn]

what size

can people please post what size mt drag radial they are runing I just don't want to guess that everyone is runing a 275/50/15

thanks jay

 

[KevinB]

Is it true that if you run them backwards (directional tires), they work better?

 

[DR BOOST]

1.44 on a 275/60 15


12 psi

i have never heard about trying them backwards though.


presently im running a 325/50 15 ill post the results at the track in a week

 

[pacecarta]

the true name is Mickey Thompson ET Street radial
and they are DOT legal radials , drive so much better than the bias ply ET streets and hook damn close to the MT et drag (slick ) but feel much more stable at the top of the track , they dont grow like the slicks seem to do above 100mph

1.42 and 1.43's 23psi in them
275/60-15

have done many 1.5s with the 255/50-16's at same pressure

 

[67turboCamaro]

1.34 60'
325/50/15
13psi
Car weighs 3275

 

[conn84gn]

I run 22psi on my DR 255/60/15 on the street on a 84GN rim
(Same as the 87T-Type)
Handle like my 255/60/15 Cooper street tire
BUT WAY MORE GRIP

 

[Otto J]

Here is a pic from a few weeks back

TRS Photo - Chevy,Pontiac,GM,ect. - DSC_3636

 

[57loboy]

Nice launch Otto!

 

[1BADTT]

M/T drag radials with 14PSI.
This is what Dave Fiscus recommended and it worked well

what size mt drag raidials were you runing

thanks jay

Here is a pic from a few weeks back

TRS Photo - Chevy,Pontiac,GM,ect. - DSC_3636

What size r they Otto ??