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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 08-06-2019, 11:35 PM   #253
MilkyWitness
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Initial impressions are its a step above the stg 2 I had. Throttle response under 3k rpm is much improved. Power delivery is smooth. Will give further impressions once the tune has settled in and learnt what it needs to learn after a flash.
Good stuff. Let me know what you think of cruising in 6th gear. Do you feel like you have enough power to pass people without downshifting to 5th?
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Old 08-07-2019, 01:49 AM   #254
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Good stuff. Let me know what you think of cruising in 6th gear. Do you feel like you have enough power to pass people without downshifting to 5th?
Personally I would downshift but I can try 6th and see. What sort of speed range? At 60mph I can't imagine it being an issue. At 50mph I don't think it would be very happy.
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Old 09-21-2019, 05:36 PM   #255
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Hey everyone, hope everyone has been enjoying the last bits of summer before it cools off!

I got a better mount for my DSLR, so I wanted to do a little redux of my header video. Has a little more variety in terms of driving situations as well.

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Old 06-09-2020, 02:48 PM   #256
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Gonna bump this up to the top as I see many more people are running this header out in the wild! How are y'all enjoying it? I was planning a local dyno day earlier this year to compare the gains vs a stock vehicle on the same dyno/same day to have more data for everyone, but due to COVID that obviously couldn't happen.

I still wholeheartedly recommend this header if you're looking for an EL option. My car is still sounding and driving awesome.

Hope everyone is staying safe!
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Old 06-09-2020, 03:39 PM   #257
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I don't recall if I posted my dyno numbers after I went to E85, but here are my numbers.

You'll probably say, "these look low!" and "there's no comparison!", which are both accurate statements. But the one constant here is that these dyno runs were conducted in compliance with NASA's dyno testing procedures, which usually read low.



Also, the only sounds you need are at full throttle

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Old 06-09-2020, 04:15 PM   #258
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I don't recall if I posted my dyno numbers after I went to E85, but here are my numbers.

You'll probably say, "these look low!" and "there's no comparison!", which are both accurate statements. But the one constant here is that these dyno runs were conducted in compliance with NASA's dyno testing procedures, which usually read low.


That G-spot at 4555rpms
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Old 06-09-2020, 04:21 PM   #259
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That G-spot at 4555rpms

I also have the same G spot on my dyno run

That’s where vtak kicks in.
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Old 06-09-2020, 04:24 PM   #260
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I also have the same G spot on my dyno run

That’s where vtak kicks in.
I got a G-Mound, you know what they say about torque curves.. its like shoes size. "motion of the ocean" and things like that. Know what I mean? *wink*

"looking at the torque cure, you packin some long tubes" know what I'm sayn'?


Edit: *crickets*
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Old 06-11-2020, 02:40 AM   #261
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Just do it. Beside the ace350's these are fantastic headers. Love them with my boosted twin. And they are cheaper to boot than the ace headers

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Old 06-11-2020, 09:04 AM   #262
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Nevermind the numbers, with ACE headers peak hp is usually around 7,400 rpm and the tq stays flat until around 7,000 rpm (my dyno sheet). Can JDL achieve that, or are you limited by class rules and had to detune at higher rpms?
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Old 06-11-2020, 11:18 PM   #263
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Nevermind the numbers, with ACE headers peak hp is usually around 7,400 rpm and the tq stays flat until around 7,000 rpm (my dyno sheet). Can JDL achieve that, or are you limited by class rules and had to detune at higher rpms?
I think after 6.5k the cat back plays in a bit more. Can it maintain the torque a at higher RPM with an open exhaust? I would think the 949 guys would know, but I dont think they dyno or tuned to "max out" the output on a dyno graph. Same G-spot peak. Cam timing similar?
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Old 06-12-2020, 07:39 AM   #264
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@TMF, are you still on this exhaust? My tune is a road racing tune as well.
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Old 06-12-2020, 11:01 AM   #265
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Here is my Dyno pull with Zach at csg

https://www.instagram.com/p/B8sJ1XDn...d=ty42p88y5tfo

https://www.instagram.com/p/B8sOU-0n...d=klqnb0pf9upg

Sprintex 210 +69mm pulley IC, flex fuel
JDL 4-2-1, stock op/fp with extra ultra vibrant resonator and mxp sp exhaust

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Old 06-12-2020, 11:25 AM   #266
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Jeez @TMF when you went into that turn going 125MPH, I just about had a heart attack vicariously. What brakes are you using?
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