Hoosier C30 Compound
 

Anybody using the highlighted radial below. I've used the C06 lightweights with good results; was told these tires wouldn't work. I had no issues with them working & got an easy 150 runs out of them.

The tires shipped today & supposed to receive them tomorrow. Hopefully test/race them next weekend.

https://i.imgur.com/Udl6Hcb.png

Re: Hoosier C30 Compound
 

That tire was designed for FS cars. Would work well on yours.

Re: Hoosier C30 Compound
 

Thanks Barry!

We are going to find out soon enough. :)

Re: Hoosier C30 Compound
 

Got the tires, they have 94" Factory Stock molded in the rubber under the tire size. Must be a rules thing.

Re: Hoosier C30 Compound
 

Looks like it is their way of getting a 10 inch tire in stock. We will see if NHRA lets anyone run them or only FS cars.

Re: Hoosier C30 Compound
 

I'm a bracket racer so, I don't know what the rules are. I would assume with Hoosier molding the 94" Factory Stock under the tire size that they're only for FS.

We'll see if they work for a bracket car.

Re: Hoosier C30 Compound
 

NOVASSDUDE. That genie is already out of the bottle. I have seen quite
a few Stockers run them in the last 2 seasons. I'm not saying a new rule couldn't be put in place to not accept them, but they have been run quite
extensively for 2 seasons. Keep in mind, Factory Stock Showdown has
9" inch tire rule as well.

J.R.

Re: Hoosier C30 Compound
 

Tires are mounted & balanced. At 20 psi the tires measure dead-on 94". I mounted these on a 10' wide rim. We'll see how they work this coming weekend.

Our primary tire is a 29.5x10.5 M/T PBR.

Re: Hoosier C30 Compound
 

I like the tire so far; they helped me get down to six cars today & a little bit of money. :D

We have 9 runs on the tires. The first 4 runs woke up the wheelie monster again with having to peddle the car on a few of the runs. The plan for now is to have these tires as a spare set & continue running our primary tires.

Re: Hoosier C30 Compound
 

1700, how were your 60 ft times compared to your other tires? And ET compared to other tires?

Thanks,

J.R.

Re: Hoosier C30 Compound
 

J.R.,

With only 9 passes on the tires & peddling, tripping 60' with back tires & front suspension changes; I'll try & take a wag.

Caveat, this is a bracket car & we have a mild tune-up with boost & EFI for high 8s 1/4 mile & 5.70's 1/8 mile.

Between the 2 different tires there's no noticeable difference between the two. We have gone a best 1.28 on the M/T's & this weekend once we settled in with taming the suspension. We ended up with 1.31x 60's with the Hoosiers. With no noticeable difference in ET's.

Previously, when our car was N/A. When we switched between the M/T's & the Hoosiers (not the FS tires). The car was .5 - .10 quicker with the Hoosiers. The PBR M/T's are a heavy tire.

Re: Hoosier C30 Compound
 

We have a TnT & 2 points races this coming weekend. The plan is to race with our primary tire's M/T PBR's using our same set-up we used with the Hoosiers this past weekend. I'm pretty sure we'll have to loosen the front-end up with the Mickeys, but we'll see; 1st couple passes will be the same set-up.

I know J.R. had a couple questions, hopefully we can provide some comparison information.

Re: Hoosier C30 Compound
 

Start with the Hoosiers C30 compound I ran on Feb 16 & 17; the DA was 2500' - 2700'. I only picked the 3 last 60's because that's where I settled in on no changes to the shocks/suspension. These were done in the same lane with careful shallow staging.

1.316
1.316
1.313

This past weekend with the M/T PBR's Feb 23rd; the DA was 26xx' for both runs. This was the same set-up as with the Hoosiers & the same lane as above with careful shallow staging.

1.336
1.335

Both tires were run with 20 lbs. air. The M/T's are mounted on 9" wide rims & the Hoosiers are on 10" wide rims. The same burnout was done for both.

My take on the Hoosier's are they're a very aggressive compound & I still need to work on the set-up to calm the wheelies down more.

As for the Mickey's, the Hoosier set-up was right for these tires; nice low trajectory 60' wheelie. I did make some fuel table changes at the launch rpm/coming off the 2 step. The 60' settled in at 1.34x for Sat. & Sun. I screwed up on the Sat. race, but did manage the semi-finals on Sun.

Re: Hoosier C30 Compound
 

This post is not about the OP, it's about some of the subject matter.

I think I mentioned the Hoosiers are going on the back burner or maybe I didn't. Anyway, I/we have the upcoming Spring Fling Million race(s) coming up. I may or may not enter but are preparing as if. I decided to buy new 29.5x10.5 M/T PBRs over using our new low run Hoosiers if we decide to run the race(s).

The new tires should be on for our points race on Mar. 30th.

Re: Hoosier C30 Compound
 

Got the new M/T PBRs in today, they felt extra heavy. While I've weighed them before, these came in at 34 lbs. each. M/T list them at 31 lbs.

Oh well, they work great on our/my car & they're fast enough for a bracket car.

Re: Hoosier C30 Compound
 

Our points race was cancelled for rain today. We did have a TnT yesterday & there was a good many Spring Fling racers testing. I did get to make my last test pass against the best & took some learning away from it!

Anyway, we had the new M/T PBRs on & the car was struggling to pick the tires up & 60's were slow. I did loosen up the front shocks & it responded slightly. I think it was a combination of TnT prep & the worst air we've been in.

I'm sure on Tues. our only test run(s) for the Spring Fling we will have better track prep.

Re: Hoosier C30 Compound
 

I tried M/T PBR 28x10.5s for the first time last week and it was literally the best my car has ever worked. Fastest (relative to weather conditions) and straightest the car has ever gone. Mounted on a 12 inch wide single beadlock wheel. Got a little aggressive with the NOS tune-up and almost turned it over backwards. I dialed it back and made a couple of really great test passes. See results:
https://i.imgur.com/EBa0QxN.jpg
https://i.imgur.com/dGcxx6g.jpg
https://i.imgur.com/zY5ASK1.jpg

Re: Hoosier C30 Compound
 

JP,

Is that the 1st time running radials on the car?

How do you like them Keizer wheels?

Re: Hoosier C30 Compound
 

Yes, never used a set of radials before. Had some 28x10.5 floppy tires last year mounted on some ancient Weld Draglites with wheels screws that worked good too, but I've heard the radials are faster and work better on slower stuff like mine. At this point I'd have to agree. The 30x9 hoosier radials on my stocker gave me the confidence to try a radial on my SST car and I'd have to say it was a good call.

The Keizer wheels are awesome. Can't beat them for the price. Look great, interchangeable centers, and SFI certified. These are a 15x12 single beadlock with 2.5 or 3 inch backspacing, can't remember exactly which.

Re: Hoosier C30 Compound
 

Finally found a product bulletin on this tire. I still only have 9 passes on these tires. I'm pretty sure I can win on them.

I hope to get more testing/racing on them this fall.

https://www.hoosiertire.com/images/c...30%20(002).pdf

Re: Hoosier C30 Compound
 

Anyone noticed a difference in radial vs bias ply for et predictions? Just wondering out loud if the softer sidewalls could introduce more variability. Probably overthinking, but not afraid to ask the 'dumb' questions either.

Re: Hoosier C30 Compound
 

I've never seen a car get less consistent when put on radials, unless the car was just blowing the tires off on the starting line.

Now, I've never seen a car that just couldn't handle radials either, but I've had to work on my own car a couple times after making a somewhat significant power increase.

Re: Hoosier C30 Compound
 

I installed the Hoosier FSS C30 compound slicks today for testing/racing this coming weekend. Hope to finally get some good data on the tires.

I weighed the tire & rim configuration between my M/T PBRs/double bead lock rims to the FSS tires/Weld no beadlock rims. There's a total difference of 24 lbs. weight savings.

Hopefully they work good enough to use for the Spring Fling Million in Apr. if I decide to enter.

1700/STY/781L :)

Re: Hoosier C30 Compound
 

If the Hoosier 18213 is 94" circ. and this tire is for factory stock, what rear gear do they run and how much horsepower are those cars

Re: Hoosier C30 Compound
 

I don't know the power they make, but it's more than mine. This is just a small tire bracket car set-up to run mid 8s. I'm only legal to run 8.50 & the biggest problem is I'm not legal to run 150 mph +, yet.

Below is/was my gearing. I have no idea on the HP, it hasn't been on the dyno.

1700/STY/781L :)

https://i.imgur.com/0UDVmQK.jpg

Re: Hoosier C30 Compound
 

The only 9 inch PBR I have seen is only 28? tall and 88 rollout. What size were your PBR?s?

I ran some 13.5 x 31 PBRs for years for an everyday slick on my Cavalier LT1 stick car. When I took them off last fall at Vegas, they had 193 runs on them and looked great! The date code was from 2017 and I bought them in 2018. I gave them to a local bracket guy?

They were 9 lbs each heavier than a standard radial but you cannot wear them out!

Re: Hoosier C30 Compound
 

Our primary tire is a 29.5 x 10.5 PBR, it has a 94" RO & the width is only 10". I get an easy 150 runs out of them & they're still working great when I change them out.

When I first started running radials many...many moons ago. I started with a Hoosier 30 x 9 C06 lightweight & got an easy 150 runs out of them. I've ran all the different model 9" Hoosiers. They're great tires, but the PBRs edge them out slightly for bracket racing.

1700/STY/781L :)

Re: Hoosier C30 Compound
 

We put 9 runs on the tires this past weekend. They worked pretty good & only had one pass I didn't like. It wasn't the tires fault; there was drippings on the inside left groove. I straddled them the best I could but don't know where the drippings were down track. My 60' was a little off & the tires were searching for traction down track.

Performance wise, the total rotation weight savings made little to no difference in ET & I wasn't looking for one.

I decided to enter the Spring Fling Million & parking is one week from today. I'm going to double enter in Pro & Super Pro for the (3) 30K races & single enter in the Wanna-Be Million.

1700/STY/781L :)

Re: Hoosier C30 Compound
 

Correction: I can only single enter in the 30K races. I can double in 2 different categories for the Wanna-Be Million. :eek: