11 seconds on street tires?

[peterkin]

How many of you guys with 109 blocks can run 11's on street tires ( radials ). I'm just curious because I had my car back at the track this past weekend after replacing broken rocker shafts and the thing ran 12.14@115 first pass on low timing. I proceeded to play with the car all night running 12.19, 12.17, 12.10, etc. I finally broke an 11.98@116 on Yokohama ?? 255/50/16 tires. How many people have done this, or better?

Oh, I was getting 1.92 60' times with a could 1.82 60' times thrown in there.

 

[slamming 6]

You can get the 60s down to 1.45 or better you can get 11.50@118.I have run a best of 11.68@117 with a 1.53/60 on nitto's.

 

[disco stu]

I have cut 1.71 at Baytown on fresh Nittos. Thats more Baytown than the tires I am sure as their track prep was great.

 

[peterkin]

I meant street tires, not drag radials or slicks, no racing style sticky tire. Sorry about the confusion.

 

[disco stu]

That is a street tire.

 

[peterkin]

i know that smart ars!

 

[slamming 6]

11.36@119.77 but that was with my nova with 36$radials from tire kingdom 1.64/60 footer.(p275-60r-15's).

 

[volvoman]

I would like to know too!

I was just thinking why am I not in the 12s. I am at 3k on car weight. I have 225/55/17s which is almost the same as my 26" slicks. I also have 3:27.1 and powertrax locker..

I know I can blow in to the 12s with the slicks but with 225s Daily driver street tires would make it much cooler.

Any Ideas?

 

[Pronto]

wagon has run some fantastic times on some skinny white wall radials. Maybe he'll chime in and tell you his secrets.

 

[justabuickv6]

The best I have ran with a real street tire is 12.07 with a 1.83 60ft. That's on PepBoys Futura's 255/50's. The track was well prepped for the next days big event.

 

[Grandnat]

The best I have ran with a real street tire is 12.07 with a 1.83 60ft. That's on PepBoys Futura's 255/50's. The track was well prepped for the next days big event.

I second the Pepboy futuras.... I have run 1/8th times that would put me solidly in the 11s on some 275 futuras.

 

[wagon]

wagon has run some fantastic times on some skinny white wall radials. Maybe he'll chime in and tell you his secrets.

No secrets.
Magic.
See the sig.

 

[Red Regal T]

I might be able to hit 11s if they would just prep the track right before I run. Problem with street tires is, as the track prep goes away, so do your 60s. Without good 60s, you're not going 11s unless you have a lot of HP.

 

[jasjamz]

I think Patrick Rubio (used to be with PTE) went 11.35 i forgot the mph. This was on a real street tire not a drag radial. But this was a 9.70-9.80 car on slicks. It was a charcoal grey TR!

 

[1BADDAM]

Time in sig. Nitto's though. Stock longblock and downpipe. If the track has some cooler temps and no headwind sometime close to winter, should go 11.4-5 @ 119+

 

[Grandnat]

Now , if we are talking Drag Radials I have done 6.77 @ 102.7mph

does that count?? hey it's a radial!!!

 

[GNVYUS 1]

Peterkin great times. What turbo, psi and any head work?

I hope to get high 11's with 295/50/15's, alky and my TA49 pushing around 23psi.

I am sure you can fit a 305 to 285 tire back there but the 16 inch rim is probably killing your 60ft a tad due to the smaller sidewall. There is someone with 305's on 16 inch rims on the OTHER board http://www.turbobuicks.com/forums/showthread.php?t=30182&page=1&pp=15

All you need to do is roll the fender lip and find a good street radial to slap in there.

 

[Dusty Bradford]

It took some practice but I managed some mid 1.6 short times on a true 275/60 bfg ta. The car ran 7.30's 1/8 mile at those 60's so it would be well into the 11's. I couldn't put any more power in it or it would spin badly when the boost came all the way in. An electronic boost controller would be a good thing to have if you race on true radials so that you can set the ramp speed on the boost.

 

[bird]

It took some practice but I managed some mid 1.6 short times on a true 275/60 bfg ta. The car ran 7.30's 1/8 mile at those 60's so it would be well into the 11's. I couldn't put any more power in it or it would spin badly when the boost came all the way in. An electronic boost controller would be a good thing to have if you race on true radials so that you can set the ramp speed on the boost.

1.6 shorts on a regular radials, thats unreal, whats your secret? who needs slicks or drag radials with those numbers. very impressive

 

[Dusty Bradford]

I wish I new what the secret was. The car was a 6.6 @103 car on 33# and C16. I just got bored and started playing on real radials to see what I could do. I could only run 22 psi or it would kill the tires when the boost came in. I just kept trying different boost launches and finally got it figured out. With 30psi in the tires I could leave on 2# of boost and I guess the combination just worked well together. It took the q trim 66 with .85 housing a little while to spool so it was perfect for true radials. I had good rear control arms with adjustable uppers and 90/10's in the front with moroso drag springs. It would 60' in the 1.49-1.52 range on 275/50 dr's.

A freind of mine always ran on real radials. It was a 6.90 car on good gas and slicks but with the boost turned down he could go low-mid 1.7's on true radials. His car had all stock suspension with nothing but a pass. airbag.

We did notice a difference in track nights also. These times only happened on good nights when a lot of slick tired cars were running. If you have a track where you have a lot of imports or radial tire cars tearing the track up then it's harder to get the good 60's. Most of my times were in the high 1.7 range with a handful of 1.6's.