🔧 BUILD The Replacement for the Cobra. V: “Greasy’s Fuck Your Blower-Coyote, Super-Secret Stick-Shift Hellcat Build”
- Thread starter greasy
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Which Mickeys are you getting?Mook you'll be getting the call on dem Mickey's.
Yeah 20x10’s up front and 18x10.5’s in the back. The plan is to run a 305/45/18 size tire.
I still need to order a pair of 20x10.5’s
If you want to run a 28" tall tire, Hoosier makes an actual radial tire that will work. Not street legal, but there is a guy running these on his stick Whipple car getting into the lower 1.4x on his 60 foot times at the track.
I might look into these next for my 17's.
Hoosier 18830 28.0/10.5R-18 Bracket Racing Drag Radial Slick - Bracket Racer Drag Radial Slicks - Hoosier - Tires - Vehicle Selector - Shop Now (lethalperformance.com)
Have you plugged all your info into a gear calculator? Plug some info in to see where you'll be at by the end of the quarter mile to see if the taller tire is necessary. I imagine you'd be crossing the traps at the top of 4th?
Here's a couple calculators that will let you know what speed/rpm you'll be at per gear. Just need to plug in the specifics for your car.
Gear Ratio Calculator (tremec.com)
Gearing Calculator | RPM and Tire Diameter to km/h - mph with Shift Tracer (blocklayer.com)
I want a taller tire to have a more sidewall and improve the overall contact patch. Stock tires are 28.7" tall and the 305/45 Mickey is 29.02, so pretty damn close in tire height. I'll take the slightly reduced gear ratio if there is any by the 0.32" taller tire as traction off the line is tough.
Yeah I need to shift into 4th. I was trapping around 130 and top of 3rd is around 120ish.
When we were at the track this fall I was running the R888R in a 285/35R20 which is a 28.4" tall tire. I was trapping 130mph, so based off of that my RPM was 5,700.
At 5,700 rpm a 28" tall tire would put me at mph 128mph and the 29.02 tall Mickey will put me at 133mph.
A smaller tire should get my 60' down assuming traction is perfect, but a bigger tire will net me more mph on the big end right?
The bigger tire isn’t gonna give you more mph. We’re really splitting hairs I was just wondering if you were close to running out of gear with the current tire or what. The 29’s are gonna serve you well I think. Especially since your car makes so much power down low, keeping the rpm’s up high isn’t a concern for you like it is for us Coyote cars.
New wheels are in and better than expected! Quality is top notch.
Fronts weigh 22 lbs per wheel and the rears are 20 lbs.
Fronts weigh 22 lbs per wheel and the rears are 20 lbs.
They look great. BC makes a good product. It's nice that they save weight over the factory wheels as well.
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