Has anyone run a 13sec 1/4mile on E85 & NA - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

diss7 · 12-14-2013, 04:50 AM

I'm trying to get a gauge on how much gain there is from running ethanol, and it can be painful comparing dynos, mainly because they all read the baseline different.

Our dynos in NZ only show the stock car as having 140whp Lol.

At least 1/4 miles are a good comparison. Assuming good driver.

Is it feasible to expect a NA 86 with high flow air filter, headers and full exhaust, and an e85 tune to break into a 13 sec et?

Cheers

industrial · 12-14-2013, 09:16 AM

It should be mathematically possible with 200whp and a racing weight < 2750 pounds.

Bahraini86 · 12-14-2013, 01:20 PM

Mid 14s here on pump gas. We don't have ethanol here. Shooting for low 14s hopefully. Very difficult to hit 13s on stock weight.

My stock dyno was 145whp btw

StormTrooper · 12-14-2013, 02:43 PM

Should be fairly easy to cut 150 lbs off the car.

Not sure what that translates to in terms of time cut though. Guessing a 1/10th or so.

zooki · 12-14-2013, 04:35 PM

Quote:

Originally Posted by industrial

It should be mathematically possible with 200whp and a racing weight < 2750 pounds.

Don't forget to add the driver's weight.

1086 · 12-14-2013, 04:41 PM

well if you reduce overall weight, its basically like reducing a percentage of the driver's weight (once he is inside driving).

Perhaps this will help or give you some ideas > http://www.ft86club.com/forums/showthread.php?t=53482 . I started a thread speculating how noticeable and how much of a difference increasing horsepower (with the OFT) and dropping roughly 130 lbs would be.

kidgogeta · 12-14-2013, 07:21 PM

From some of the posts I've seen, FI guys are running in the 13's but their trap speed is insane! IMO go for a 100mph trap speed for NA, which would be in the high 13s with a good launch.

calmtigers · 12-14-2013, 10:28 PM

you could probably do this just by gutting the cat... JS

12-14-2013, 04:50 AM	#1
diss7 Banned Join Date: Sep 2012 Drives: AE86, 2x GT86, TE27 Location: Christchurch NZ Posts: 1,478 Thanks: 826 Thanked 1,181 Times in 522 Posts Mentioned: 33 Post(s) Tagged: 0 Thread(s)	Has anyone run a 13sec 1/4mile on E85 & NA I'm trying to get a gauge on how much gain there is from running ethanol, and it can be painful comparing dynos, mainly because they all read the baseline different. Our dynos in NZ only show the stock car as having 140whp Lol. At least 1/4 miles are a good comparison. Assuming good driver. Is it feasible to expect a NA 86 with high flow air filter, headers and full exhaust, and an e85 tune to break into a 13 sec et? Cheers

12-14-2013, 01:20 PM	#3
Bahraini86 Senior Member Join Date: Mar 2012 Drives: Toyota GT86 Location: Bahrain Posts: 404 Thanks: 166 Thanked 307 Times in 101 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Mid 14s here on pump gas. We don't have ethanol here. Shooting for low 14s hopefully. Very difficult to hit 13s on stock weight. My stock dyno was 145whp btw __________________ '73 240z Triple-Carbed '03 350z Supercharged (455whp) '09 135i Twin-Turbocharged (11.85@188km/hr) My 6MT GT86 Build Log My Naturally Aspirated 13.90@98.8mph run

12-14-2013, 09:16 AM	#2
industrial Add lightness! Join Date: Apr 2012 Drives: 17' WRX Location: Boston Posts: 1,253 Thanks: 380 Thanked 888 Times in 411 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	It should be mathematically possible with 200whp and a racing weight < 2750 pounds.

12-14-2013, 04:41 PM	#6
1086 Senior Member Join Date: Nov 2013 Drives: UM86 - 6MT Location: CA (elevation 85 ft.) Posts: 518 Thanks: 383 Thanked 249 Times in 126 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	well if you reduce overall weight, its basically like reducing a percentage of the driver's weight (once he is inside driving). Perhaps this will help or give you some ideas > http://www.ft86club.com/forums/showthread.php?t=53482 . I started a thread speculating how noticeable and how much of a difference increasing horsepower (with the OFT) and dropping roughly 130 lbs would be.

12-14-2013, 07:21 PM	#7
kidgogeta Senior Member Join Date: Apr 2012 Drives: FRS Location: Canada Posts: 459 Thanks: 631 Thanked 103 Times in 71 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	From some of the posts I've seen, FI guys are running in the 13's but their trap speed is insane! IMO go for a 100mph trap speed for NA, which would be in the high 13s with a good launch.

12-14-2013, 10:28 PM	#8
calmtigers Senior Member Join Date: Oct 2013 Drives: 2014 Whiteout TRD FR-S 6MT Location: Fresno / DTLA Posts: 928 Thanks: 628 Thanked 376 Times in 214 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	you could probably do this just by gutting the cat... JS

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