what is the optimal rim and tire size for 1/4 mile?

[wparsons]

Originally Posted by Mike Brz

No. Im at 186whp with my current mods.
Im keeping the 3pc lightweight pulley kit and 2.75 downpipe and catback.

Adding driver and passenger side Speed Genius prototype ram air snorkels.
Speed Genius prototype air box.
Bye bye injen intake, hello Speed Genius prototype intake.
Stock tb out, Speed Genius big throttle body in.
Small tb spacer out, Speed Genius big throttle body spacer in.
Crawford power blocks? Yes please!
Swapping out the Agency Power header for a ported inlets/outlet HKS EL catless header.
Also ditching the stock overpipe for a Perrin 2.5 overpipe port matched inlet and 2.75 outlet.
Drive Shaft Shop aluminum driveshaft.
Flex fuel kit / e85 tune

Im sure 20whp wont be 2 difficult with these changes

Skip the TB, it's going to do nothing but waste your money. The stock TB is huge for N/A power levels, and going bigger isn't going to gain you a drop of power. It's been tested and proven a waste MANY times over.

Originally Posted by Mike Brz

Even with only 186whp Hyundai genesis lose their money to me left and right. So i believe i picked the right car for drag and anything else. Its the underdog..if i wanna keep takin peoples paper its gotta go fast in a straight line as well. And i already said, the stock size cant be the optimal size for drag so 215/45/17 is no good and wont fit on a 16x8 anyway.

How do you know stock size isn't ideal? Have you tested multiple sizes to prove it? Same with the TB spacer, probably not going to get you significant gains (ie bigger than the normal variation between dyno pulls).

I'm pretty sure you can get 15" wheels over the back brakes, get some nice light wheels and drag radials. You'll want to go narrower with the wheels than you would for an autox/track setup, sidewall flex is your friend for a drag launch. Take a look at what full blown has on their shop car for inspiration. You'll want to keep tire diameter smaller to help the gearing advantage, but not to the point where there sidewall is too thin.

http://fullblownmotorsports.com/blog/FRS/

[Mike Brz]

Pic that u posted is not the actual intake. Thats why you see a hole and no maf bung. And im completely satisfied with the intake it does its job very well. Also the ~10 other cars and owners that ran the intake were very satisfied as well. I have nothing to prove to u guys. My post was asking about rim/tire size not about how u can magically know that a mod does not work with out any experience with it at all. (No it doesn't work cause ive never seen it) (earth is flat.... duhh) (god must not exist cause ive never seen him) yo god! Where u at bro? Keep it on topic guys. If u wanna see what the intake and these mods do power wise youll have to wait a couple of months for a dyno and then you can let your jaw drop and u can break out ur dunce cap to wear

[Mike Brz]

Wparsons you are an exception cause u basically stuck to topic and contributed helpful information thanks

[Mike Brz]

Originally Posted by STV3

Omg you're actually on the forums??? hahaha

Sorry guys can't take anything he posts seriously...

FYI This is his "prototype" intake he made and swore up and down that he knew for fact that it makes more power then any other intake out there just by his butt dyno... Never had any evidence on paper that said other wise.

Matter of fact I'd love to see any dyno sheets from you at all...

First off... its nice to see i have another stalker. u can join the club, i have plenty. This pic was posted months ago and u still have it? Weirdddd...... and this is exactly why i didnt post a pic of the actual intake cause ppl like u would try to copy the design. second... you dont need a dyno to realize a gain like that. .3 sec is a big difference. You would have to be completely numb not to feel the difference. And like ive said to many other ppl that doubt this is true, "come see for yourself, or youll just have to wait till i get the car dynoed" im not paying for dyno pulls just to prove my point to you. Either way i havent met a naturally aspirated bolt on frs or brz that can take me in a straight line. Not yet and after these mods i dont think ever. Im confident trust me, i know i am.

[Mike Brz]

U know wparsons... i never thought of that. Im going to grab a 15 from the shop and see if fits on the rear. Great idea

[venturaII]

Originally Posted by Mike Brz

U know wparsons... i never thought of that. Im going to grab a 15 from the shop and see if fits on the rear. Great idea

Didn't I suggest that a week and two pages ago...?

[slicktop]

http://www.ft86club.com/forums/showt...ght=slipstream

http://www.ft86club.com/forums/showt...ght=slipstream

[venturaII]

Originally Posted by slicktop

http://www.ft86club.com/forums/showt...ght=slipstream

This is EXACTLY what I described in my original answer...15" drag rears with a tall sidewall, skinnies up front. Great for hard launches in a straight line, terrible for everything else. The OP and the guy in the link are even both in NY...

[SkAsphalt]

This thread became hilarious as soon as I saw that intake photo

[Dipstik-sportech]

Originally Posted by venturaII

This is EXACTLY what I described in my original answer...15" drag rears with a tall sidewall, skinnies up front. Great for hard launches in a straight line, terrible for everything else. The OP and the guy in the link are even both in NY...

At his power levels slicks will only hurt him not help him, a little wheel spin on the launch will keep the car from bogging and falling out of its powerband.

[STV3]

Originally Posted by Mike Brz

Pic that u posted is not the actual intake. Thats why you see a hole and no maf bung. And im completely satisfied with the intake it does its job very well. Also the ~10 other cars and owners that ran the intake were very satisfied as well. I have nothing to prove to u guys. My post was asking about rim/tire size not about how u can magically know that a mod does not work with out any experience with it at all. (No it doesn't work cause ive never seen it) (earth is flat.... duhh) (god must not exist cause ive never seen him) yo god! Where u at bro? Keep it on topic guys. If u wanna see what the intake and these mods do power wise youll have to wait a couple of months for a dyno and then you can let your jaw drop and u can break out ur dunce cap to wear

Originally Posted by Mike Brz

First off... its nice to see i have another stalker. u can join the club, i have plenty. This pic was posted months ago and u still have it? Weirdddd...... and this is exactly why i didnt post a pic of the actual intake cause ppl like u would try to copy the design. second... you dont need a dyno to realize a gain like that. .3 sec is a big difference. You would have to be completely numb not to feel the difference. And like ive said to many other ppl that doubt this is true, "come see for yourself, or youll just have to wait till i get the car dynoed" im not paying for dyno pulls just to prove my point to you. Either way i havent met a naturally aspirated bolt on frs or brz that can take me in a straight line. Not yet and after these mods i dont think ever. Im confident trust me, i know i am.

@ all of this. Especially the points in bold.

Dat butt dyno doe...

I like how you claim whp numbers but contradict yourself by saying you haven't gotten you car dyno'd. Besides the fact that you come up with all these claimed reduction in ETs. How did you calculate those? With a stop watch?

The best part is you are worried about people copying "your design". Didn't know buying random intake parts from Autozone and Pepboys was considered making your own product.


But OK I'm done here. Just going to sit back and enjoy my popcorn.

[Mike Brz]

Who claimed a whp number? Ppl like u always get butthurt svt. Hop off my ----

[STV3]

Originally Posted by Mike Brz

Who claimed a whp number? Ppl like u always get butthurt svt. Hop off my ----

Seriously bro!?!?

Originally Posted by Mike Brz

Hey guys. Wanted to know what the best rim and tire size for a 1/4mile. Brz is ~205whp naturally aspirated. Looking for best size for optimal gearing. i was thinking to go with 16x8 rims for the rear, (not sure what tire size, i was thinking to go with a smaller rolling diameter than stock) and fronts id get 16x5 rims. Thanks

Originally Posted by Mike Brz

Smaller rolling diameter is going to be easier for the engine to turn the wheels. Also faster acceleration but lower top speed in 1/4 mile. Larger diameter would be easier to hook but slower acceleration with higher top speed. Im just wondering if anyone has found the sweet spot for a 210whp brz

Originally Posted by Mike Brz

No. Im at 186whp with my current mods.
Im keeping the 3pc lightweight pulley kit and 2.75 downpipe and catback.

Adding driver and passenger side Speed Genius prototype ram air snorkels.
Speed Genius prototype air box.
Bye bye injen intake, hello Speed Genius prototype intake.
Stock tb out, Speed Genius big throttle body in.
Small tb spacer out, Speed Genius big throttle body spacer in.
Crawford power blocks? Yes please!
Swapping out the Agency Power header for a ported inlets/outlet HKS EL catless header.
Also ditching the stock overpipe for a Perrin 2.5 overpipe port matched inlet and 2.75 outlet.
Drive Shaft Shop aluminum driveshaft.
Flex fuel kit / e85 tune

Im sure 20whp wont be 2 difficult with these changes

[Dipstik-sportech]

Where the damn popcorn!!?