SlickVert

iTrader: (5)

Just wondering if anyone has any experience with the difference between dyno #’s with street tires vs. slicks.

What would be the difference between dyno #’s;
Budnick 17x11 with 315 Nitto’s @ 48lbs
vs.
Bogarts 15x10 with 26x11.5 QTP slick @ 30lbs

My past dyno numbers were on the Nitto’s and I trying to get to the dyno next week to see how the new set-up dyno’s.

What do you think?

AINT SKEERED

iTrader: (2)

I always heard that a street tire with 30psi air or so was best. Thats where I dynoed my car with teh 315x35x17 Nittos

Wicked_Hugger99

iTrader: (1)

Ive heard that too but could be wrong, i dunno.. My old 99z was dynoed w/ 315/35 nitto Dr's w30psi to get 388rw locked and my SS was dynoed w/ 275/40 nittos but not sure what psi. Im sure a few dyno tricks were used to get that 846rw number though. Down here in the humid south i'll prolly lose a good bit

gator's 99TA

iTrader: (2)

i have personally dynoed my car with the exacty same wheels (15x8 prostars). one with 275 drag radials and one with et drags. i went from 328 on the et drags to 340 on the radials.

no doubt i lost big time with the slicks.

SlickVert

iTrader: (5)

gator's 99TA, that is a big difference.
Thanks, anyone else have real word data?

PewterZ28

iTrader: (1)

Hmm, interesting. Any idea on how psi affects dyno numbers?

theblur98ss

iTrader: (71)

I'd be curious to see back to back runs with heavy street rims vs lighter drag rims.

383LQ4SS

iTrader: (33)

I dont think its so much the weight as the slicks start to "cup" at high MPH even when aired up. I dynoed 522 rwhp with 28x10.5 slicks and you could see the big "dent" in the tire even as it was spinning at 150+ mph on the roller. Im sure that hurts #s.

I will be dynoing soon with the slicks and some radials on Z06 rims back to back.
Maybe in two weeks.

SLowETz

iTrader: (12)

Allan @ FMS told me he usually always see's lower dyno #'s w/slicks vs. radials on the same car.

Couldn't say why.... just that he does.
IMO.... you'd "think" you'd see a higher # w/slicks as they grow at speed changing the effective ratio to a higher(numerically lower)gear.

I just dyno'd yesterday....457/426 w/4.56's/28" ET Streets.... wonder what that
would've been w/26" or even 28" radials?

SMOKIN01TA

iTrader: (10)

id love to try some radials, i did 442 on 28" slicks