Firestone Firehawk Indy 500

[Waterfan]

You're going to love these man, today was dry and I did not spin in 1/2. Super impressed!


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Wait, you have full bolt-ons and protuned X37 and NO SPIN in 1 or 2? No feathering? That almost defies belief

 

[nickstewartroc]

Wait, you have full bolt-ons and protuned X37 and NO SPIN in 1 or 2? No feathering? That almost defies belief

I don't believe it. All I have is a tune and still spin in 1 and 2, not as much, but spin is still there

 

[Waterfan]

I don't believe it. All I have is a tune and still spin in 1 and 2, not as much, but spin is still there

His alignment might be perfect and 6 pt brace could be helping more than we imagine, but yeah.

Might not have the "donkey punch of torque" at ~3k like we do. But most X37 graphs I have seen mimics the sub-4k torque curve of stage 1/2/3 (and then keeps building to mid-6 when we poop out at ~5.).

 

[Joker328]

Not sure I believe it either, but he also has larger diameter tires, which reduces the gear ratio and force being applied, so less likely to slip. Probably only a couple percent difference though.

 

[WeTheNorth]

Wait, you have full bolt-ons and protuned X37 and NO SPIN in 1 or 2? No feathering? That almost defies belief

Lol I do not feather my car ever, tires are much much stickier in every situation vs the sc2's I had prior. FYI here you can get rain and sunshine in a matter of hours. I see 20psi@2800rmp

I don't believe it. All I have is a tune and still spin in 1 and 2, not as much, but spin is still there

It slipped today in 1st and not in second but remember I'm also pushing ALOT more power than most. And I am protuned, what the stock turbo does is give you a couple seconds of 'burst of power' I'm seeing 255whp@5500 and beyond ATM with the max boost set @24

Not sure I believe it either, but he also has larger diameter tires, which reduces the gear ratio and force being applied, so less likely to slip. Probably only a couple percent difference though.

Yes gear ratio is extended higher up on the rpm, so not sure what you're referring to. Also depends on the driver, not everyone launches the same. I have no need to exaggerate on what I have and how it performs.

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[M-Sport fan]

^^^Does your pro tune have Alex's latest Cobb enabled, timing based, traction control??

 

[WeTheNorth]

^^^Does your pro tune have Alex's latest Cobb enabled, timing based, traction control??

Nope, that function is not good. It's way to intrusive. I would much rather have control over my throttle 0-100% but ED!


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[Zak757]

If I'm pushing around 220whp on the stock "donkey punch" turbo, are these tires in 205 width going to be sufficient? I'd go with these in a heartbeat if they came in more interesting sizes like 215/40/17 or 225/45/16, like the Dunlop ZII Star Specs do.

EDIT: 210whp

 

[BronxBomber]

Nope, that function is not good. It's way to intrusive. I would much rather have control over my throttle 0-100% but ED!


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I'm not much of a fan either, but you do know you can adjust the level of slip yourself right?

 

[WeTheNorth]

If I'm pushing around 220whp on the stock "donkey punch" turbo, are these tires in 205 width going to be sufficient? I'd go with these in a heartbeat if they came in more interesting sizes like 215/40/17 or 225/45/16, like the Dunlop ZII Star Specs do.

Hmm 220whp on the stock turbo? I would like to hear about you mods currently. And I have been running these for a couple weeks now. Here are my impressions.

In the dry: they grip, my bfg sc2's can't even touch these in dry grip. When I take off, they just bite the pavement and I'm gone.

Wet: I have pushed the car quite a bit in the wet and they have been quite confidence inspiring. You can never go full tard In the wet, we do get A LOT of rain here, they
hydroplane a tiny bit but that's with A LOT of water on the ground.

Verdict: go BUY a pair, now.

I'm not much of a fan either, but you do know you can adjust the level of slip yourself right?

Must be referring to a more recent update?



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[BronxBomber]

If you go to Tune on your AP, then select Adjustments then you'll have the option to Change CCF Traction Control. There are 8 levels of adjustment. You can dial in different amounts of slip. You can also select to have it active on only certain map slots.

 

[Zak757]

Hmm 220whp on the stock turbo? I would like to hear about you mods currently. And I have been running these for a couple weeks now. Here are my impressions.

Sorry, meant to type 210whp. Just an MR230 tune on 94 octane, dyno'd at sea level.

 

[caliboy15]

Ok lets go back to topic

 

[WeTheNorth]

Ok lets go back to topic

Thread is totally on topic, it's good to
Share power figures on cars so we can see how these tires perform on car A vs car B

So not understanding where you are coming from


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[Zak757]

I looked up Bridgestones AU website, and the Potenza RE003 comes in our OE size as well as 215/40/17. Either way, a better fit than any of the current available 17" sizes. I wonder why the Indy 500 doesn't come in these sizes, considering it's literally the same tire.

 

[WeTheNorth]

I looked up Bridgestones AU website, and the Potenza RE003 comes in our OE size as well as 215/40/17. Either way, a better fit than any of the current available 17" sizes. I wonder why the Indy 500 doesn't come in these sizes, considering it's literally the same tire.

They are seeing what the market does most likely


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[M-Sport fan]

I'd go with these in a heartbeat if they came in more interesting sizes like 215/40/17 or 225/45/16, like the Dunlop ZII Star Specs do.

Same here, even a 215/45-16 would be cool on a 16x7.

 

[Azov]

I just finished a set of these. I've done 15k miles of hard driving including a trip to the dragon. They are currently discontinued now according to firestone. They handled pretty good, but I still liked the BFG Sport Comp-2s better. They were noisy and were no where near as good in the wet. I also felt like when I hit the limits of grip the BFGs were way more forgiving than these.

 

[nickstewartroc]

I just finished a set of these. I've done 15k miles of hard driving including a trip to the dragon. They are currently discontinued now according to firestone. They handled pretty good, but I still liked the BFG Sport Comp-2s better. They were noisy and were no where near as good in the wet. I also felt like when I hit the limits of grip the BFGs were way more forgiving than these.

Are you sure you don't mean the discontinued firestone wide oval indy 500 which are nothing like the firehawk indy 500? I almost made that mistake when looking for the firehawk indy 500's and found they are different by a large margin and not a lot of people seemed to like them

 

[Azov]

http://m.imgur.com/TRmAod9

I guess it is the wide ovals