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 01-13-20, 06:16 PM
  #811  
MLRSTJ
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Talking 10.995 1/4 pass @ 131.41 mph !!!

Here's a pass I just made at AutoClub Dragway on 1/12/20 with my SC_ISF !!!


In line for Tech inspection.

In line for Tech inspection.

My SC_ISF and a SC GSF in the drag lines waiting to make a pass.

My SC_ISF and a SC GSF in the drag lines waiting to make a pass.

The results !!!!
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Old 01-13-20, 07:03 PM
  #812  
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Originally Posted by MLRSTJ
Here's a pass I just made at AutoClub Dragway on 1/12/20 with my SC_ISF !!!


In line for Tech inspection.

In line for Tech inspection.

My SC_ISF and a SC GSF in the drag lines waiting to make a pass.

My SC_ISF and a SC GSF in the drag lines waiting to make a pass.

The results !!!!
Very nice! Beautiful car! That mph is easily a mid 10 sec car. Get that 60 foot to a 1.6 and you're looking at 10.5s
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Old 01-14-20, 09:50 AM
  #813  
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Default 1/4 mile pass

Originally Posted by Warhorse
Very nice! Beautiful car! That mph is easily a mid 10 sec car. Get that 60 foot to a 1.6 and you're looking at 10.5s
Thanks, yeah that would be Awesome !!! Going to make some adjustments and go for it !!!
Old 01-14-20, 10:04 AM
  #814  
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Originally Posted by MLRSTJ
Thanks, yeah that would be Awesome !!! Going to make some adjustments and go for it !!!
What sc setup do you have? Is it the vortech centrifugal blower?
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Old 01-14-20, 02:09 PM
  #815  
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Default Blower

Originally Posted by Warhorse
What sc setup do you have? Is it the vortech centrifugal blower?
I have the Rotrex C38 Supercharger with a stage 3 kit on E85 from RR.
Old 01-14-20, 02:53 PM
  #816  
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Originally Posted by MLRSTJ
I have the Rotrex C38 Supercharger with a stage 3 kit on E85 from RR.
Oh ok, I figured it was rr, but I forgot they were using rotrex, not vortech. Have you dynoed it? If so, what did it put down?
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Old 01-14-20, 03:52 PM
  #817  
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So as of today is this the fastest "charged" isf? What's the fastest naturally aspirated 1/4 mile time?
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Old 01-14-20, 05:23 PM
  #818  
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Default Whp

Originally Posted by Warhorse
Oh ok, I figured it was rr, but I forgot they were using rotrex, not vortech. Have you dynoed it? If so, what did it put down?
Yeah I had her on the Dyno 2 weeks ago and she put down 650 WHP. I also posted a video "Fire Breathing" ISF Dyno pull.
Old 01-14-20, 05:31 PM
  #819  
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Default Fastest 1/4 mile time

Originally Posted by FinLIFE
So as of today is this the fastest "charged" isf? What's the fastest naturally aspirated 1/4 mile time?
At this point Jason F. in NorCal did a 10.8 something in 1/4 mile at a zero elevation track. AutoClub Dragway is at 1,000+
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Old 01-14-20, 08:30 PM
  #820  
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Originally Posted by MLRSTJ
Yeah I had her on the Dyno 2 weeks ago and she put down 650 WHP. I also posted a video "Fire Breathing" ISF Dyno pull.
Very nice. How much boost did it make peak? Around 10 psi? I know RR has been keeping alot of these setups on the conservative side for reliability.
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Old 01-15-20, 10:10 AM
  #821  
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Default Psi

Originally Posted by Warhorse
Very nice. How much boost did it make peak? Around 10 psi? I know RR has been keeping alot of these setups on the conservative side for reliability.
Yeah she's only making about 10-12 psi.
Old 01-20-20, 02:00 PM
  #822  
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Posting an update on my car. I've added PPE headers, RR Racing intake system & RR Racing tune over the past summer. Also changed the rear tires to 275/30 Indy 500. Hitting low 12s on street tires has been a goal of mine for awhile now. Very fortunate to have achieved that the other day!


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Old 01-21-20, 08:15 AM
  #823  
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Did you weigh your car on the scales at Sac Raceway? Would be nice to know along with those really nice time slips!
Old 01-21-20, 09:34 AM
  #824  
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Originally Posted by lobuxracer
Did you weigh your car on the scales at Sac Raceway? Would be nice to know along with those really nice time slips!
I've never used the scale there before. But I will for sure next time on Feb 8th when I go back. But for reference, I've always gone to Sacramento with 1/4 tank of gas left, no engine covers and no spare tire, tools or trunk mats.
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Old 01-21-20, 10:15 AM
  #825  
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Awesome. Would love to know how it fares for weight in street/race trim. I know what mine weighed at Roebling Road, but that was fully loaded with about 1/8 tank of gas.


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