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


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Old 05-30-2019, 11:12 AM   #29
RayRay88
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Originally Posted by Westen86 View Post
I pictured tuning like moving a tent post under a tent. If you moved the peak, the immediate area around it would tapper off each end. But I guess thats a camshaft thing? But from what I hear, tuning is about pushing each peg as far up as possible without the peg getting pushed out. And the total engine determines the length of each peg.

Then Im looking for 150ftlbs from 3-5000rpm on 93. Kinda like this. And Im pretty sure thats all down to which header I put on.


Moving the powerband around like that is usually through a culmination of parts. Some of the main ones being; Intake manifold runner length, camshaft profiles, header design and then finally a tune to maximize it all.
Most 4-2-1 headers will give you a relatively flat torque curve on these cars, but don't kid yourself into thinking you can get modern turbo cars like max torque off throttle or V8/Large displacement levels of grunt.

I also highly recommend you throw the JDL 4-2-1 EL header on your list.
http://www.ft86club.com/forums/showp...&postcount=169
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Old 05-30-2019, 11:31 AM   #30
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The ones Im leaning toward are the FT86 Catless, and the Ace CS400. Mainly because I dont want full boxer or full Honda noise from the exhaust. My first choice a long time ago was the HKS, until I heard it. But if something like the OFH2 or JDL uel gives me better results, I can go full Subaru.
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Old 05-30-2019, 11:33 AM   #31
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The ones Im leaning toward are the FT86 Catless, and the Ace CS400. Mainly because I dont want full boxer or full Honda noise from the exhaust. My first choice a long time ago was the HKS, until I heard it. But if something like the OFH2 or JDL uel gives me better results, I can go full Subaru.

The JDL 4-2-1 is an EQUAL LENGTH header. It will not give you the boxer rumble.
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Old 05-30-2019, 01:47 PM   #32
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The JDL 4-2-1 is an EQUAL LENGTH header. It will not give you the boxer rumble.
I just saw that in an older Ace 350 thread. It looks like the power is good, but doesnt come with an OP. It also matches the price of an Ace CS400 at $1400.
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Old 05-30-2019, 02:31 PM   #33
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I just saw that in an older Ace 350 thread. It looks like the power is good, but doesnt come with an OP. It also matches the price of an Ace CS400 at $1400.

The header just came out sometime Q4 last year. Older posts may be referencing the 4-1 not the new 4-2-1.

It's $1350 with ceramic coating. $1200 without.

$1200+200 for an overpipe =1400 about the same as a CS400.


I really don't care if you're set on a CS400 and don't care to compare the JDL but, for reference when other people come looking for answers, at least be factual and compare apples to apples.
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Old 05-30-2019, 03:19 PM   #34
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Then I see stuff like this...
And it makes me want to buy a used Tomei and OP for $5-600 and deal with the rumble.

https://www.ft86club.com/forums/showthread.php?t=130575
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Old 05-30-2019, 03:22 PM   #35
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Good idea imo. Otherwise you can debate this for infinity
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Old 05-30-2019, 04:16 PM   #36
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how are dynos in USA always put crazy values
when we in italy almost every dyno put around 133whp bone stock with 100Ron and you are lucky to get 160 whp with a catless EL header with 100Ron ecutek tuned
The % delta is what truly matters. Absolute readings should always be taken with a grain of salt.

This is why having a baseline is so important. Without a baseline, you can't get the % delta, and then, it literally becomes just a number.
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Old 05-31-2019, 10:18 AM   #37
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FYI there's a post on FB about a potential PTuning header group buy for just a smidge over 1K if anybody is thinking about that header.

IMHO if you want to stay NA and you want 'torque', I think it's a better buy to get a cheap used 'quality' header from the board here (i.e. P&L, JDL, that pops up), custom tune it, and use the rest for a FD swap. You could probably do all of that for the cost of one ACE header.
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Old 05-31-2019, 10:25 AM   #38
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FYI there's a post on FB about a potential PTuning header group buy for just a smidge over 1K if anybody is thinking about that header.

IMHO if you want to stay NA and you want 'torque', I think it's a better buy to get a cheap used 'quality' header from the board here (i.e. P&L, JDL, that pops up), custom tune it, and use the rest for a FD swap. You could probably do all of that for the cost of one ACE header.
This one?? Still a dip. Its a 200whp EL header.

https://www.ft86club.com/forums/show....php?p=1888721
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Old 05-31-2019, 10:41 AM   #39
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This one?? Still a dip. Its a 200whp EL header.

https://www.ft86club.com/forums/show....php?p=1888721
Yup that's the one, it's one of the better headers out there. Just raising awareness as I saw it pop up.
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Old 05-31-2019, 11:39 AM   #40
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Good idea imo. Otherwise you can debate this for infinity
Fking this.
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Old 05-31-2019, 05:09 PM   #41
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Tomei for sale in classifieds. 400 bucks. I would start with those.
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