IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Seeing is Believing: 358rwhp, 400rwtq Supercharged IS350 (DYNO'd)

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Old 01-27-15, 12:45 PM
  #166  
jordan350
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Hey stew can you please tell.me everything that was used in this and your current setup? Parts and all mounting doesn't matter ill habde that just please list all parts and how you tuned it thank you much!
Old 01-27-15, 02:26 PM
  #167  
Hoovey689
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Any updates on 400whp with PPE?
Old 02-13-15, 05:02 PM
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The plans are changing everyday. This thread has everything I have so far already listed. For details check the classified ad.

Seeing is Believing: 358rwhp, 400rwtq Supercharged IS350 (DYNO'd)-image-664918832.jpg

Headers going on in the next couple weeks. And a LOT of custom machining to get this setup going in the next couple weeks as well.
Old 02-14-15, 07:19 PM
  #169  
Gville350
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Excited to see where this goes! Looking forward to your updates!
Old 02-14-15, 08:48 PM
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Sylvan
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Interesting read, when getting pulleys machined due to belt slip why not go with a cog set up. I have never seen anyone use a boost limiting valve I suppose it makes sense because you would spin the blower up quicker in low rpm and then bleed boost higher in the revs similar to a waste gate I guess my concern would be the computer metering the air that you are bleeding off causing a rich condition. Is the drivability perfect? Just curious about flat spots or hesitations while driving.

Awesome project and thank you for sharing the trials and tribulations.
Old 02-15-15, 12:09 AM
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Originally Posted by Sylvan
Interesting read, when getting pulleys machined due to belt slip why not go with a cog set up. I have never seen anyone use a boost limiting valve I suppose it makes sense because you would spin the blower up quicker in low rpm and then bleed boost higher in the revs similar to a waste gate I guess my concern would be the computer metering the air that you are bleeding off causing a rich condition. Is the drivability perfect? Just curious about flat spots or hesitations while driving.

Awesome project and thank you for sharing the trials and tribulations.

1) As far as the cogged setup, are you sure you read the thread?

2) The BLV is in the hot side piping, well before the MAF. Further, the only reason i'll need to back down the boost is a lean AFR. If I ran rich, I'd add in more boost until I wasn't running rich anymore, and titrate my water/meth mixture accordingly.

3) Yes. Drivability is like stock +100whp.

Last edited by stewb10; 02-15-15 at 12:14 AM.
Old 02-15-15, 07:50 AM
  #172  
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I missed this one. WOW
Old 02-20-15, 02:25 PM
  #173  
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Headers installed now I get to rework my whole exhaust so it sounds good again...

Old 03-14-15, 11:54 PM
  #174  
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Seeing is Believing: 358rwhp, 400rwtq Supercharged IS350 (DYNO'd)-image-1969389428.jpg


Standalone electronic boost control. Completely adjustable for opening pressure and duty cycle. AFR/PSI cutoffs. Boost MAF, wideband O2, and tach inputs. Data logging capability.

Wastegate

Colder plugs
Old 03-15-15, 12:23 AM
  #175  
nikogio38
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Originally Posted by stewb10
Attachment 357317


Standalone electronic boost control. Completely adjustable for opening pressure and duty cycle. AFR/PSI cutoffs. Boost MAF, wideband O2, and tach inputs. Data logging capability.

Wastegate

Colder plugs


HOLYSHI!....IM JEALOUS YOUR GOING KILL THE WHP FOR IS350s....I give up. lol But on a side note I just purchased my LEXON EXCLUSIVE over fenders... im soon to be a boosted widebody running a 295 in the rear! haha
Old 03-15-15, 11:45 AM
  #176  
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Originally Posted by stewb10
Colder plugs
Let me know the part number of those plugs if you don't mind. I'd like to run a step or two colder when I add nitrous and throw in some race-gas.com fuel concentrate.

Thanks!

Last edited by Gville350; 03-16-15 at 02:16 PM. Reason: typo
Old 03-16-15, 06:05 PM
  #177  
stewb10
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HKS calls for 2 or 3 steps colder in the GT kit. I'm not EXTRA sold it needs more than one, but I may be using an oxidizing agent in the near future as well, so I went with 2 steps.

Denso IKH24

Last edited by stewb10; 03-16-15 at 07:18 PM.
Old 03-16-15, 09:32 PM
  #178  
codenko
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Did you end up pulling the front fenders to run 19x9.5?
Old 03-17-15, 12:04 PM
  #179  
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Originally Posted by stewb10
Denso IKH24
Thanks man, much appreciated!
Old 03-17-15, 07:18 PM
  #180  
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Any time!

Originally Posted by szrae
Did you end up pulling the front fenders to run 19x9.5?
Yes. But its more about offset that anything else. I'm running a 4" lip up there currently.


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