quote:

Originally posted by pauley:
i would like to run one of those races at some point before i age out.

ep

I'm realizing I'm slowly losing what little talent I thought I had the older I get. This was my worst showing for this event & I had another that was close. This was my 7th appearance at the Spring Fling Million. The other 5 years I have walked away with small checks & one year I won more $$$ than what was invested in entry fees. That year I made/lost in the finals of Pro. I also went out in the 4th round of the Million. It was a good year. Out of 7 events raced, I considered myself competitive for 5 of them.

I'm running out of time & slowly losing my competitiveness. I think I have one more year for the Million & after that will probably stick with only entering the (3) 30Ks.

2BKING

quote:

Originally posted by Tex013:
Why did you change tyres mid event ? I have 2 sets , PBR 29.5s and GYear 30x9 .

I decided I was going to race the event on my 30x9 Hoosiers. The set I started the race on had about 70 runs on them. I had a brand-new set & I had Hoosier mount them at the track. I took my low run PBRs as a spare set.

My PBRs were my go-to radials but since running these C30 compound Hoosiers they fit my program just a tad better than the PBRs. They're a softer compound & I also tested the new Hoosier DR3 DOT radial 275/60R-15 that's a softer compound. I'm starting to like the softer compounds, but don't get the runs out of them like the PBRs.

2BKING

BKing
Gotcha , yeah i have used/been happy with Hoosier radials . Just not the 70-85 passes they give me .

Tex

Tex, I've been using nothing but radials for around 15 years now. I have never used a Goodyear radial & have only used the M/T PBR, not their Stock Eliminator radials. As for the Hoosier radials, I've used all the different configurations of the 30x9 that I know of.

The 1st set of radials I ever used was the Hoosier 30x9 CO6 lightweight. I made 150 passes on them & they still could have went another 25. I then went to the C07 standard weight & was able to get an easy 200 runs.

Sometime shortly after the M/T PBRs came out I put on the 29.5x10.5 It became my tire of choice, but it was only slightly better than the Hoosiers. I was able to get an easy 200 runs out of these.

The above was when I had my high 9 sec. naturally aspirated combo.

About 3 years ago I built the ProCharged combo & started out using the M/T PBR. I found; I can only get about 175 runs out of them & the sidewalls are gone but still had a good many runs left on the depth indicators.

I discovered the newer Hoosier 30x9 C30 compound radial that was built/designed for the NHRA's Factor Stock Shoot Out cars. They are a good fit for my ProCharged combo. There're a couple things I don't like about the tire. They're soft & I can only get about 100 passes on them; the depth indicators are gone. I had about 75 runs on the pair I changed out at the Spring Fling & wanted a fresh set for the big day. That was a mistake!

Recently I tested the new Hoosier DR3 DOT radial 275R/60-15. While I only have 3 passes on them, I'm impressed so far. We tested these on a TnT night & if I remember right the best 60' was a 1.378. We went back to the C30 compound for the next 2 days for our points races, the best 60' was 1.377. Pretty sure I can improve on the 60's with the DOT tires with a little less tire pressure. They're a 28x10 radial.

The reason I brought up the last 2 paragraphs about their newest compounds; they work great on our set-up. The thing I don't like is their secrecy on these radials, most notably the compounds. I guess it really doesn't matter, they work on my car.

Just thought I would share some of our radial data with you.

2BKING

BKing ,
thanks for that . In 20yrs racing I have only done 1 event on rags , radials for everything else on both cars I have raced . A 32 3 window coupe and now my Plymouth . Started on 275s but when I tried tbrake needed the 29.5PBR and stuck with it . GY is fast like Hoosier but a bit more sensitive I feel .Havent really done huge amount of laps before running back to the PBR after 3 punctures in 1 GY .
Went out Wednesday to a street car, minimal prep , meet to check I had solved the fuel system woes . Even had a DYO class running for a couple of dollars . Ran the PBR . Weather was nice da less so - 1900/2200 but 80% humidity & 94 grains . Plymouth was running mid 10.40s @128/9.
Ran good all the way to the final. Spun off line in semi & final . 7 minute turn around to final so added 1 number to allow for the extra heat (190), spun and couldnt quite get there ran 10.462 on 48 on brakes. couldn't quite clean all 3 members of same family . Got uncle in 1/4 father in semi lost to son in final .
Well I'm ready for NDRC Nitro Champs on 1-3 May .

Tex

Looks like you have about 5 more years' experience with radials than I do.

With the limited runs I have on the 275 DOTs, I'm impressed! They took the hit using the transbrake @ 3400 rpm/3 lbs. of boost. I'm pretty sure these 275s may only last 100 passes, only time will tell.

Below is a link to my 1st post on the 275s in case you didn't see it.

Good luck on your race 1-3 May!

2BKING



https://drr.infopop.cc/eve/for...077031307#7077031307

This message has been edited. Last edited by: B KING,