Power gains on F-sport intake and exhaust- per Sewell's website
05-28-08, 05:00 PM
Lexus Champion
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This is indeed at the crankshaft right?... If this is rwhp I am utterly flabbergasted...
05-28-08, 05:27 PM
Lexus Champion
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Location: CA
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Why does it matter whether these marketing numbers are at the crank or wheel? There is only about 10% - 15% difference between crank and wheel.
05-28-08, 10:06 PM
Tech Info Resource
Join Date: Jul 2006
Location: Georgia
Posts: 22,382
Quote:
Originally Posted by
Joe Z
...On a fully redesigned
true dual exhaust replacement with high flow cats and 2.25 mandrel bent tubing, we are only seeing 8-10 rwhp max gains.. on an IS350
(just some food for thought)
Joe Z
What are you calling a true dual? Separate pipes from front to back?
05-29-08, 02:09 AM
Lexus Test Driver
Join Date: Jul 2007
Location: ca
Posts: 1,125
Quote:
Originally Posted by
Gernby
Every intake and exhaust available is going to have some rediculously inflated dyno chart backing it up. This is no different.
look at the lms intake dynos.. we need independent dynos.. but then again u can gain 10rwhp just by moving the fans..
05-29-08, 07:47 AM
Lexus Fanatic
Join Date: Nov 2004
Location: Under an IS F since 2008
Posts: 13,441
Quote:
Originally Posted by
lobuxracer
What are you calling a true dual? Separate pipes from front to back?
Yes, with a slight correction... There is a mandrel bent curved X- connection before the secondary cats.. )(
Dyno numbers had better results with the X- design, when compared to no connection what so ever or an H-design connection.
But be patient, more info will be publicly released very, very soon..
Joe Z
05-29-08, 10:00 AM
Lexus Champion
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JoeZ, is your exhaust STILL in the development stage?!?
05-29-08, 12:35 PM
Lead Lap
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so i spoke with one of the sewell parts guys over the phone, and according to him the dyno numbers and video on their site are from 2006 when they did it on a 250 and 350 with the lexus hks exhaust. according to him, the lexus hks and f-sport exhaust are the exact same exhaust, just different part numbers. however, carchitects post did indeed prove theres a slight difference between the two when it came to the right mufflers on both exhausts...
05-29-08, 12:51 PM
Lexus Fanatic
Join Date: Nov 2004
Location: Under an IS F since 2008
Posts: 13,441
Quote:
Originally Posted by
Gernby
JoeZ, is your exhaust STILL in the development stage?!?
No.. Its complete.. With out going too off topic.. Info will be released shortly..
Thanks for being patient.
05-29-08, 02:24 PM
Lexus Test Driver
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getting more off topic, didn't you say you were thinking of getting air boxes molded as well to go with your pipe in response to the fsport intake?
05-29-08, 02:39 PM
Lexus Fanatic
Join Date: Nov 2004
Location: Under an IS F since 2008
Posts: 13,441
Quote:
Originally Posted by
uschardcor
getting more off topic, didn't you say you were thinking of getting air boxes molded as well to go with your pipe in response to the fsport intake?
No.. not worth it in my honest opinion....
But very good idea..
05-31-08, 09:27 AM
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a joe z exhaust? hmmmm sounds interesting. Cant wait to see the gains and price tag :-)
05-31-08, 12:51 PM
Lead Lap
Join Date: Jan 2008
Location: California
Posts: 761
I'm wondering how many Tanabe exhausts and HKS exhuasts will go up for sale in the classifieds once the JoeZ exhausts hits the market.
06-03-08, 09:10 PM
Driver
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There isn't any way the exhaust could get 22hp imo
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05-28-08, 10:06 PM
look at the lms intake dynos.. we need independent dynos.. but then again u can gain 10rwhp just by moving the fans..
