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-   -   14.88@94mph with a single power mod (vid) (https://www.ft86club.com/forums/showthread.php?t=30886)

Bahraini86 03-12-2013 02:49 AM

14.88@94mph with a single power mod (vid)
 
Broke own personal record with a 14.88@150km/hr (best time and speed). Car has an injen intake as the only power mod. Running on 18" wheels

[ame="http://www.youtube.com/watch?v=0Yb4x5jF-oY"]Running 14.88@150km/hr in GT86 - YouTube[/ame]

https://fbcdn-sphotos-e-a.akamaihd.n...03710165_n.jpg

https://fbcdn-sphotos-b-a.akamaihd.n...87774296_n.jpg

rice_classic 03-12-2013 02:52 AM

Tire and tire size?

Bahraini86 03-12-2013 03:00 AM

Quote:

Originally Posted by rice_classic (Post 787861)
Tire and tire size?

GramLight 57xtremes 8.5x18 front and 9.5x18 rears with 225/40/18 and 255/35/18 respectively

rice_classic 03-12-2013 02:01 PM

I'd be curious if the 255 rears and 18x8.5" wheels hurt or helped your time. I'm sure the extra tire helped your launch but the significantly higher rotational mass.

From an science viewpoint, it'd be fun to take your stock wheels out and do back to back runs to see if the bigger wheels/tires are an advantage or disadvantage.

Good vid and nice burnout. That's my favorite part of drag racing.

u/Josh 03-12-2013 02:51 PM

Quote:

Originally Posted by rice_classic (Post 788675)
I'd be curious if the 255 rears and 18x8.5" wheels hurt or helped your time. I'm sure the extra tire helped your launch but the significantly higher rotational mass.

From an science viewpoint, it'd be fun to take your stock wheels out and do back to back runs to see if the bigger wheels/tires are an advantage or disadvantage.

Good vid and nice burnout. That's my favorite part of drag racing.

The effect of extra wheel weight on straight line acceleration is not that much. I'd guess he is faster with the wider, stickier tires. Especially if he has stock tires on those stock wheels.

Chimpo 03-12-2013 03:00 PM

Quote:

Originally Posted by rice_classic (Post 788675)
I'd be curious if the 255 rears and 18x8.5" wheels hurt or helped your time. I'm sure the extra tire helped your launch but the significantly higher rotational mass.

From an science viewpoint, it'd be fun to take your stock wheels out and do back to back runs to see if the bigger wheels/tires are an advantage or disadvantage.

Good vid and nice burnout. That's my favorite part of drag racing.


I thought you would want more sidewall when drag racing? The side wall gives more to lessen the tire breaking free? Granted, I am talking about slicks, but from all my drag racing days I don't remember the best times being cut with big rims/little sidewall.

[ame]http://youtu.be/HldiiDmvTxI[/ame]

SloS13 03-12-2013 03:03 PM

That's hilarious. Minute long burnout on street tires for a 15 second run.

husker741 03-13-2013 01:24 AM

It makes you wonder how some of these magazines got their 14.6 times on stock tires, with a stock car.

rice_classic 03-13-2013 01:30 AM

Quote:

Originally Posted by Chimpo (Post 788834)
but from all my drag racing days I don't remember the best times being cut with big rims/little sidewall.

Are you theorizing that if he put on 16" wheels (even less weight) and used a tire of the stock width (taller sidewall) but is a much stickier tire like a treadwear rating of sub-200 he could accomplish both a better launch and reduced rotational resistance.

Alright Bahrain... time for some more testing! :D

Bahraini86 03-13-2013 10:29 AM

Quote:

Originally Posted by SloS13 (Post 788839)
That's hilarious. Minute long burnout on street tires for a 15 second run.

At least I got this pic :D

https://fbcdn-sphotos-h-a.akamaihd.n...995_n.jpg?dl=1

bpracer 03-15-2013 07:11 AM

That's a great picture!

wparsons 03-15-2013 04:46 PM

Quote:

Originally Posted by SloS13 (Post 788839)
That's hilarious. Minute long burnout on street tires for a 15 second run.


Even worse, most street tires grip worse after a burnout. Best launch would be skipping the water box and just giving them a quick spin to throw any loose debris off them. You should only do a burnout with proper drag radials or slicks.

d1ck 03-15-2013 11:45 PM

Quote:

Originally Posted by wparsons (Post 796110)
Even worse, most street tires grip worse after a burnout. Best launch would be skipping the water box and just giving them a quick spin to throw any loose debris off them. You should only do a burnout with proper drag radials or slicks.

Any good street tire will benefit from a small amount of heat. (Star Spec, RS3, Kumho XS, RT-615K are the ones I have experience with) Although, some are easier to overheat than others.

Bahraini86 03-16-2013 12:04 PM

Quote:

Originally Posted by d1ck (Post 796855)
Any good street tire will benefit from a small amount of heat. (Star Spec, RS3, Kumho XS, RT-615K are the ones I have experience with) Although, some are easier to overheat than others.

I have tried many techniques with these Nitto 555, and for it to hook at 6k RPM launch, it must be heated really well. And the guys wanted an extra few seconds for the cameras :party0030::coolpics:


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