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2017 GS-F GSF Stock Dyno Run

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Old 04-29-18, 08:06 AM
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finny76
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Exclamation 2017 GS-F GSF Stock Dyno Run
2017 GSF (BoneStock)
Did two pulls in 5th gear, resulting in 381 to the wheels.

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Old 04-29-18, 08:09 AM
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Great post... Thank u so much for sharing.
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Old 04-29-18, 08:11 AM
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Originally Posted by designo
Great post... Thank u so much for sharing.
No problem! For Comparisons sake Most GSFs stock are doing anywhere from 385-390 ish
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Old 04-29-18, 09:29 AM
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That's actually amazing because my stock E60 M5 did 395whp on a dynojet.

After full bolt ons and tune.. it then made 475whp on the same dyno.

Not a bad drive train loss for the Lexus I must admit
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Old 01-27-19, 05:27 PM
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Default CO based GSF
Trying to find a local Colorado GS-F to compare to my GS350.
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Old 01-28-19, 12:02 PM
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Originally Posted by designo
That's actually amazing because my stock E60 M5 did 395whp on a dynojet.

After full bolt ons and tune.. it then made 475whp on the same dyno.

Not a bad drive train loss for the Lexus I must admit
18.41% is around expected. I'm encouraged by this as I am planning on adding novel headers, hopefully that nets a dozen more HP
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Old 01-28-19, 12:14 PM
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Originally Posted by texaslexii
18.41% is around expected. I'm encouraged by this as I am planning on adding novel headers, hopefully that nets a dozen more HP
Without the ECU crack will the car still keep the power gains? I have a '17 and am thinking about doing the same thing.
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Old 01-28-19, 12:20 PM
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Originally Posted by jjman007

Without the ECU crack will the car still keep the power gains? I have a '17 and am thinking about doing the same thing.
Imma gonna put it in just in case. Plus the extra (few) HP wont hurt either.
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Old 01-28-19, 05:45 PM
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Originally Posted by texaslexii
18.41% is around expected. I'm encouraged by this as I am planning on adding novel headers, hopefully that nets a dozen more HP
With the GS F its pretty easy to gain more HP with exhaust modification, any V8 just let it breath better and you'll definitely get those numbers.
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Old 01-28-19, 09:52 PM
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Originally Posted by ModInJapan
With the GS F its pretty easy to gain more HP with exhaust modification, any V8 just let it breath better and you'll definitely get those numbers.
LOL that's incorrect the more air you more it will require more fuel which means a better tune which I don't think RR Racing can program 17+ GSF. No it's no easy to gain HP with any of the V8 lexus models without boosting it. Adding a full catback might increase your HP by like maybe 8whp and by adding headers with a tune will get you like 30 whp combine with headers, catback, and air intake. There isn't much else you can do to gain anymore hp without building the bottom end going with higher compression pistons.

Love when vendors give out the wrong info so they can sell more products
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Old 01-29-19, 10:00 AM
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Originally Posted by 13FSPORT


LOL that's incorrect the more air you more it will require more fuel which means a better tune which I don't think RR Racing can program 17+ GSF. No it's no easy to gain HP with any of the V8 lexus models without boosting it. Adding a full catback might increase your HP by like maybe 8whp and by adding headers with a tune will get you like 30 whp combine with headers, catback, and air intake. There isn't much else you can do to gain anymore hp without building the bottom end going with higher compression pistons.

Love when vendors give out the wrong info so they can sell more products


No tune, PTS catback exhaust installed on 2016 GS-F . Dyno numbers don't lie, plus the ECU will naturally compensate for the additional airflow and therefore increase fuel to maintain the proper A/F level that is required to maintain sustainable combustion.
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Old 01-29-19, 03:18 PM
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thanks for posting the results
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