JDL 4-2-1 EL header - Page 25 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Vital · 03-19-2021, 02:20 PM

Quote:

Originally Posted by Tanstin

Exhaust hanger trick? What is that? Could you a link a thread that explains it?
And thanks so much, I am looking to swap out some of my exhaust components later down the line and i might go with the touring86.

I believe hes referring to this...
https://www.ft86club.com/forums/showthread.php?t=143514

jflogerzi · 03-19-2021, 03:16 PM

Yup. They were made for the sti axle back but reports say they help for all exhausts. Must be ordered from japan

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Mike_ZN6 · 07-10-2021, 12:26 AM

These are my before and after dynos with the JDL 4-2-1 header on 93 octane:

jflogerzi · 07-10-2021, 12:37 AM

Gonna be scheduling time with Zach as CSG. Won't have before but I am sure they have a stock Dyno that we can add to compare. Will be getting 91 and e85 really dialed in

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jflogerzi · 07-10-2021, 12:38 AM

Quote:

Originally Posted by Mike_ZN6

These are my before and after dynos with the JDL 4-2-1 header on 93 octane:

Wow what a perfect NA Dyno graph. Look at how flat it and pulls till redline

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gpvecchi · 07-10-2021, 03:20 AM

Quote:

Originally Posted by Mike_ZN6

These are my before and after dynos with the JDL 4-2-1 header on 93 octane:

Who made the tune?

Mike_ZN6 · 07-10-2021, 08:40 AM

Quote:

Originally Posted by gpvecchi

Who made the tune?

The car was tuned in person at PTuning by their master tuner, Toan.

Mike_ZN6 · 07-11-2021, 09:41 PM

I noticed today that the overpipe on my car has started banging against the front subframe when the engine shifts towards the passenger side. After the install of the JDL 4-2-1, PTuning pointed out the clearance to the subframe was very close and they said this may be an issue.

PTuning has suggested placing some shims under the passenger motor mount to get some additional clearance. I am also thinking I should probably get some stiffer motor mounts like the STi units.

Is this an install issue? Has anyone else had this problem?

jflogerzi · 07-12-2021, 12:15 AM

Overpipes have always been a problem on this car. Is it stock or aftermarket?

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Mike_ZN6 · 07-12-2021, 12:19 AM

Quote:

Originally Posted by jflogerzi

Overpipes have always been a problem on this car. Is it stock or aftermarket?

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It is a JDL 2.5" overpipe that was installed at the same time as the header.

jflogerzi · 07-12-2021, 01:06 AM

Ahhh it's mostly aftermarket ones that can have clearance issues.

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Captain Snooze · 07-12-2021, 04:06 AM

Quote:

Originally Posted by solidONE

Get it optimized then? What’s the issue? If I’m not mistaken cosworth uses this header.

Late reply but Nameless developed the headers used by Cosworth.

Thefalls · 07-12-2021, 04:37 AM

Better get some STI or TRD engine mounts ( Same stuff anyway)

Very minimal vibration (from the gearbox mount) which settles after a few thousand kms.

I installed the gearbox mount later and had the two front mounts first.

jflogerzi · 07-12-2021, 09:15 AM

Go for the group N STI mounts.

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07-10-2021, 12:26 AM	#339
Mike_ZN6 Senior Member Join Date: Apr 2020 Drives: 2016 Toyota 86 Location: DMV Posts: 426 Thanks: 253 Thanked 209 Times in 139 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	These are my before and after dynos with the JDL 4-2-1 header on 93 octane:

07-11-2021, 09:41 PM	#344
Mike_ZN6 Senior Member Join Date: Apr 2020 Drives: 2016 Toyota 86 Location: DMV Posts: 426 Thanks: 253 Thanked 209 Times in 139 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I noticed today that the overpipe on my car has started banging against the front subframe when the engine shifts towards the passenger side. After the install of the JDL 4-2-1, PTuning pointed out the clearance to the subframe was very close and they said this may be an issue. PTuning has suggested placing some shims under the passenger motor mount to get some additional clearance. I am also thinking I should probably get some stiffer motor mounts like the STi units. Is this an install issue? Has anyone else had this problem?

07-12-2021, 04:37 AM	#349
Thefalls Senior Member Join Date: Feb 2014 Drives: Corolla GT Location: Sunny place. Posts: 208 Thanks: 371 Thanked 118 Times in 90 Posts Mentioned: 6 Post(s) Tagged: 2 Thread(s)	Better get some STI or TRD engine mounts ( Same stuff anyway) Very minimal vibration (from the gearbox mount) which settles after a few thousand kms. I installed the gearbox mount later and had the two front mounts first.

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