IS F (2008-2014) Discussion topics related to the IS F model

Official IS-F Drag Time/Dyno Time/Performance Thread

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Old 03-06-18, 12:21 PM
  #721  
njoyRice
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Originally Posted by Joker4096
So with my runs, I had all of the engine covers off and didn't open the hood once to cool it off. I think the secondary intake was sucking in hit engine bay air 130* or more. I even had the car turned on at times idling in the staging lanes. And I know better than that lol.
I had my hood up and car off every chance I could get. I was also lucky that the track I went doesn't get that busy and so I didn't spend much time in the staging lanes. I could have easily gotten 12+ runs in if I didn't take a break in the middle.
Old 03-09-18, 07:42 PM
  #722  
broken_tsi
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I had my first run with my ISF at PBIR tonight. Just about what I was expecting time wise. I need more seat time and a not so crowded night to get more than one run in!
Old 03-10-18, 07:46 AM
  #723  
AndrewISF
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Originally Posted by njoyRice
Heat soak does have a big role. My best 2 runs out of the 9 was after ~1 hour cool down (12.05 and 11.99). Especially in hot weather multiple back to back runs doesn't seem ideal.


I removed the 4 bolts holding the seat back and I yanked up on with all my might but it would not bulge like it did it some of the video tutorial. Will try removing the C pillar next time.

I ran XXR 550 17x9.25 +36. No modifications needed for me but I'm on stock suspension and height.

I was shifting as close to 6800 trying not to go past redline. Yes the converter does unlock past 6800 which I assume is kind of like revving in neutral (maybe someone can explain this better). I noticed that if you end up shifting past 6800 with the redline raised it will slip a little bit then shift. Doing that I ended up increasing my mph from 116 to 119 by the end of day getting the shifts right.[/QUOTE]

Thanks for providing the link to your rear wheels. How are they holding up? I'm thinking of buying a set of 17in wheels to put drag radials on and the XXRs appear to be one of the cheapest options.
Old 03-29-18, 07:47 PM
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Low Life
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So I've had my IS350 since 2011 and I'm considering buying an IS-F. My question is what kind of WHP & TQ is the IS-F getting with I/H/E I would have to imagine quite a bit more than the IS350, being that's it's a 5.0?
Old 03-29-18, 08:58 PM
  #725  
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Originally Posted by Low Life
So I've had my IS350 since 2011 and I'm considering buying an IS-F. My question is what kind of WHP & TQ is the IS-F getting with I/H/E I would have to imagine quite a bit more than the IS350, being that's it's a 5.0?
With I/H/E/T and e30 blend I dynoed at 441 WHP. This is on a really happy dyno so ~420WHP.
Old 05-06-18, 02:48 PM
  #726  
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First time running the F.
PPE headers, joez exhaust, rr tune and intake.
20inch wheels with r888r’s in the rear.
Shoulda done bracket racing.
85 degree day, intake temps 110.


Old 05-06-18, 05:12 PM
  #727  
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Nice runs^^!

V.
Old 05-06-18, 06:18 PM
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I didn’t even realize they made 20” R888’s. R comps and still just a 1.9 60’, these cars launch like poo.
Old 05-06-18, 07:10 PM
  #729  
stephenis
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Originally Posted by FFM
I didn’t even realize they made 20” R888’s. R comps and still just a 1.9 60’, these cars launch like poo.
yup 285/30/20 and let me say they are much wider than the 285/25/20 pilots.... but damn they hook.
Launched off idle. Likely adding the bottle but want a chance on a cool day to get a lower et.


Old 05-06-18, 07:12 PM
  #730  
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Originally Posted by Vitveet
Nice runs^^!

V.
thanks. Trying to determine if that’s on par for mods and track conditions.
Old 05-06-18, 07:33 PM
  #731  
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Oh yeah, people forget to look at the tire specs which shows the actual section width. Some tires are WIDE for their rating.
Old 05-06-18, 07:47 PM
  #732  
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Originally Posted by FFM
Oh yeah, people forget to look at the tire specs which shows the actual section width. Some tires are WIDE for their rating.
true, I looked and that’s why I was ok with a 285 toyo vs possibly a 305 cup 2’s or something similar. Impressive tire and with headers/exhaust you really can’t hear em.
Old 05-06-18, 10:08 PM
  #733  
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Ahh yes, I had them on my NSX and they do howl a bit at lower speeds. Was always around 35ish for me.
Old 06-07-18, 03:47 PM
  #734  
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Fontana, CA Auto Club Dragway
Old 06-08-18, 11:05 PM
  #735  
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Default First Drag with the F


Took the car (bone stock) to the drag strip for the first time. Pretty impressed. However, I realized I was racing with the traction control on when I got home. Did any of you do better with the traction control off? Also, had just over 3/4 tank; was really hoping to have just under 1/2 tank of gas when I was racing. Next time, traction control off and less fuel...

Last edited by Chris808; 06-08-18 at 11:09 PM.


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