JDL 4-2-1 EL header - Page 31 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

J95 · 11-19-2021, 03:39 AM

Quote:

Originally Posted by NicFromTheNorth

This thread seems appropriate for posting dyno numbers I got at Light Touch Tuning. They provided .csv files of the data so I made this graph, rather than posting a screen capture of their software also showing runs we did with another tune.

car: BRZ 2016
mods: JDL 4-2-1, everything else is stock
tune: Wayne Rom v167 for ACE, 91 octane fuel

Very interesting info, because I was thinking about purchasing a Wayne tune too. You don´t have a run with the stock tune or OTS tune though?

However... why did you choose the ACE tune over the EL tune? Our JDL 4-2-1 is a short EL, not a long one like the ACE

Edit: Oh ok! I did not see the last posts

In my case, I will be purchasing the regular EL. The only difference should be the zero per cylinder compensation though

tomm.brz · 11-19-2021, 03:46 AM

guys, both headers require more logging and retuning
anyone posting dyno or logs with wayno tunes and ace or JDL have subpar results compared to other well known ecutek tuner
so it worth if you spend some time adjusting afr and increase timing to knock limit, don t just put OTS tunes and pretend they work ideally from the beginning

NicFromTheNorth · 11-19-2021, 08:02 AM

Quote:

Originally Posted by tomm.brz

don t just put OTS tunes and pretend they work ideally from the beginning

Nobody is pretending it is ideal. I just did some testing for the sake of it and posted the results, thinking some may find it useful or at the very least somewhat interesting. That's all there is to it.

NicFromTheNorth · 11-19-2021, 08:06 AM

Quote:

Originally Posted by J95

The only difference should be the zero per cylinder compensation though

The EL has more advance on the intake AVCS below 5600 rpm.

J95 · 11-19-2021, 08:21 AM

Quote:

Originally Posted by NicFromTheNorth

The EL has more advance on the intake AVCS below 5600 rpm.

Ah ok, it does not say that on the website. I will order the EL soon considering the ACE is specific for the long length and then try to adjust AFR and timing as he describes and I guess that the most we can do with OFT tune...

NicFromTheNorth · 11-24-2021, 11:20 AM

Quote:

Originally Posted by J95

I guess that the most we can do with OFT tune...

In the final tune I settled on, which is based on the Wayne roms, I actually tuned out the torque bump I was getting at 4600 rpm to make it more constant across the rpm range. Some people may find that to be an odd decision!

J95 · 11-24-2021, 01:08 PM

Quote:

Originally Posted by NicFromTheNorth

In the final tune I settled on, which is based on the Wayne roms, I actually tuned out the torque bump I was getting at 4600 rpm to make it more constant across the rpm range. Some people may find that to be an odd decision!

What do you mean about tuning out, I mean what did you change?

NicFromTheNorth · 11-24-2021, 03:53 PM

I reduced the angles in the intake and exhaust AVCS tables on the 4600rpm row.

B T · 08-01-2022, 09:49 PM

What have people been doing about the contact between the header and underbody shield? Cut to form? It seems to bow out a solid 1/4 to 1/2 inch on Perrin motor mounts.

Teseo · 08-01-2022, 10:14 PM

Quote:

Originally Posted by B T

What have people been doing about the contact between the header and underbody shield? Cut to form? It seems to bow out a solid 1/4 to 1/2 inch on Perrin motor mounts.

Try to "massage" the panel with a hammer

RToyo86 · 08-31-2022, 11:51 AM

Put my order through this week.
Given a rough ETA of 4 weeks, they're prepping for the next batch of builds.

doward · 08-31-2022, 12:41 PM

JDL EL 421
JDL UltraQuiet over/mid pipe.
Tanabe Medallion Touring single exit
TRD intake/TRD filter.
OFT stg2+e85 off the shelf.
Ohio/midwest pump e85, unconfirmed %

193.66whp

NASA TT5 compliance, so dynojet, SAE, smoothing 5

Teseo · 09-01-2022, 09:05 PM

I bet you could squeeze more power.

Lantanafrs2 · 09-02-2022, 05:53 PM

Those are good tq numbers.

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11-19-2021, 03:46 AM	#422
tomm.brz Senior Member Join Date: Jan 2017 Drives: brz 2017 hksv2 Location: italy Posts: 2,292 Thanks: 517 Thanked 1,125 Times in 815 Posts Mentioned: 70 Post(s) Tagged: 0 Thread(s)	guys, both headers require more logging and retuning anyone posting dyno or logs with wayno tunes and ace or JDL have subpar results compared to other well known ecutek tuner so it worth if you spend some time adjusting afr and increase timing to knock limit, don t just put OTS tunes and pretend they work ideally from the beginning

11-24-2021, 03:53 PM	#428
NicFromTheNorth Member Join Date: Jul 2020 Drives: Subaru BRZ 2016 Location: Québec Posts: 33 Thanks: 4 Thanked 11 Times in 9 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I reduced the angles in the intake and exhaust AVCS tables on the 4600rpm row.

08-01-2022, 09:49 PM	#429
B T Senior Member Join Date: May 2015 Drives: 15 BRZ, 2003 MR2, '70 Elky, 06 TBSS Location: Mobile, Alabama Posts: 537 Thanks: 210 Thanked 230 Times in 159 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	What have people been doing about the contact between the header and underbody shield? Cut to form? It seems to bow out a solid 1/4 to 1/2 inch on Perrin motor mounts.

08-31-2022, 11:51 AM	#431
RToyo86 Senior Member Join Date: Mar 2018 Drives: 17 Asphalt 86 Location: Ottawa Posts: 2,397 Thanks: 1,886 Thanked 2,640 Times in 1,290 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	Put my order through this week. Given a rough ETA of 4 weeks, they're prepping for the next batch of builds.

08-31-2022, 12:41 PM	#432
doward Member Join Date: Jan 2018 Drives: BRZ, Miatas and a Land Cruiser Location: Columbus, OH Posts: 58 Thanks: 26 Thanked 110 Times in 37 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	JDL EL 421 JDL UltraQuiet over/mid pipe. Tanabe Medallion Touring single exit TRD intake/TRD filter. OFT stg2+e85 off the shelf. Ohio/midwest pump e85, unconfirmed % 193.66whp NASA TT5 compliance, so dynojet, SAE, smoothing 5

09-01-2022, 09:05 PM	#433
Teseo Senior Member Join Date: Jun 2014 Drives: frs Location: Gunsai Posts: 4,955 Thanks: 7,478 Thanked 2,981 Times in 1,803 Posts Mentioned: 23 Post(s) Tagged: 2 Thread(s)	I bet you could squeeze more power.

09-02-2022, 05:53 PM	#434
Lantanafrs2 Senior Member Join Date: Jan 2018 Drives: 2013 frs red Location: South Florida Posts: 3,577 Thanks: 2,591 Thanked 3,140 Times in 1,689 Posts Mentioned: 6 Post(s) Tagged: 1 Thread(s)	Those are good tq numbers.

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