JDL 4-2-1 EL header - Page 8 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Celigts · 11-23-2018, 05:57 AM

Those HP numbers seem low? PTUNING gets 200+wph they state 215whp on their website. The prtuning one is out of stock so I'd have to wait ... but even so why the infatuation on this JDL? Am I missing something? 186hp seems staggering low? Maybe I'm blind.

churchx · 11-23-2018, 08:31 AM

Simple. Every dyno reads differently. ALWAYS at very least convert absolute gains numbers to relative % against baseline of unmodified car power on that dyno, if you want to do any rough comparison between numbers measured on different dynos. What might be 120 hp on one dyno, can be 220 on another. Having at least somewhat known approximate baseline of stock car dynoed on both dynos still is far from reliable means, as numbers may differ due other variables (eg. ambient temperatures/air pressure in different days and such, or cars may have different gearing from different wheels/FD, or dyno operators can also manipulate readings), but may at least approximately land in ballpark.

J1Avs · 11-23-2018, 02:45 PM

Quote:

Originally Posted by Celigts

Those HP numbers seem low? PTUNING gets 200+wph they state 215whp on their website. The prtuning one is out of stock so I'd have to wait ... but even so why the infatuation on this JDL? Am I missing something? 186hp seems staggering low? Maybe I'm blind.

Jesse at JDL just does excellent work and has great customer service. He builds very quality pieces, they are made to work well with ceramic coating, have a lifetime warranty, and have proven performance gains.

Nothing to knock PTuning, there header is gorgeous and has proven performance gains time and again, and they are a great shop to work with (the shop I use actually). But their header is VERY loud (for me), and they only offer an uncatted EL Race Header (no UEL, 4-2-1, or catted options), so it very much limits options; therefore, making it only appealing to a segment of the market rather than the entire market. Additionally, PTuning doesn't recommend ceramic coating their header due to their slip joints, so it is a bit harder to keep temps down with their header.

With all that said, if I wasn't using a JDL catted UEL, I'd be going for their new 4-2-1 or PTuning's header.

TMF · 11-24-2018, 10:12 PM

I took advantage of JDL's Black Friday sale. Jesse was super helpful with info and recommendations and hooked me up with a great deal on the new 4-2-1 EL header, overpipe, resonated front pipe, and Delicious Tuning package. Mine is in storage for the winter, but can't wait for the install and tuning next Spring!

jflogerzi · 11-24-2018, 10:13 PM

Quote:

Originally Posted by TMF

I took advantage of JDL's Black Friday sale. Jesse was super helpful with info and recommendations and hooked me up with a great deal on the new 4-2-1 EL header, overpipe, resonated front pipe, and Delicious Tuning package. Mine is in storage for the winter, but can't wait for the install and tuning next Spring!

Wow that's gonna be a massive upgrade and congrats. It's going to transform the car .

Sent from my ONEPLUS A5010 using Tapatalk

Roadcone · 11-24-2018, 10:20 PM

Laid back cruise up my favorite local mountain. Mostly part throttle and keeping it under 5500. I did one for pull towards the end.

Sent from my Pixel 2 XL using Tapatalk

TMF · 11-24-2018, 10:24 PM

Quote:

Originally Posted by jflogerzi

Wow that's gonna be a massive upgrade and congrats. It's going to transform the car .

Sent from my ONEPLUS A5010 using Tapatalk

No kidding, I've had the car for 3 years and haven't done any power mods before, only suspension mods per the autox rules. I'm competing with NASA next, so time to make some changes!

Quote:

Originally Posted by Roadcone

Laid back cruise up my favorite local mountain. Mostly part throttle and keeping it under 5500. I did one for pull towards the end.

Sent from my Pixel 2 XL using Tapatalk

Awesome, thanks! I was actually just watching your other video and was curious if you had any other clips. Right now I'm running the stock catback with nameless muffled track pipe, but I'm thinking that the new JDL setup is going to be pretty obnoxious with my existing catback setup.

Roadcone · 11-24-2018, 10:27 PM

Quote:

Originally Posted by TMF

No kidding, I've had the car for 3 years and haven't done any power mods before, only suspension mods per the autox rules. I'm competing with NASA next, so time to make some changes!

Awesome, thanks! 8 was actually just watching your other video and was curious if you had any other clips. Right now I'm running the stock catback with nameless muffled track pipe, but I'm thinking that the new JDL setup is going to be pretty obnoxious with my existing catback setup.

This is ISR 2.5" overpipe, Megan rwcing resonated 2.5" front pipe and o.g. dezod 2.5" catback. It's pretty rowdy and louder than I prefer but I'm getting old and looking for a ls430 as a daily.

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tobin · 11-25-2018, 08:31 AM

Requesting video clip with header & stock exhaust please

Roadcone · 11-25-2018, 08:36 AM

Quote:

Originally Posted by tobin

Requesting video clip with header & stock exhaust please

That's way too much work to bother with lol

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JBezugs · 11-29-2018, 05:43 PM

So, I caved as well and picked up a set through Alpha Motorsports, with the cerakote Titanium finish.

I will have them on the car and dyno tuned with OnPoint in the spring once my car comes out of storage! Beyond excited.

Chuckls · 11-29-2018, 07:33 PM

Quote:

Originally Posted by Roadcone

This is ISR 2.5" overpipe, Megan rwcing resonated 2.5" front pipe and o.g. dezod 2.5" catback. It's pretty rowdy and louder than I prefer but I'm getting old and looking for a ls430 as a daily.

Sent from my Pixel 2 XL using Tapatalk

Kyle, can we even get the ISR any longer?

Roadcone · 11-29-2018, 08:16 PM

Quote:

Originally Posted by Chuckls

Kyle, can we even get the ISR any longer?

I have no idea. I got it on eBay earlier this year for an insane deal. That's the only reason I'm running it. Overpipe has nearly zero to do with sound tho

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Chuckls · 11-29-2018, 08:23 PM

Quote:

Originally Posted by Roadcone

I have no idea. I got it on eBay earlier this year for an insane deal. That's the only reason I'm running it. Overpipe has nearly zero to do with sound tho

Sent from my Pixel 2 XL using Tapatalk

I just want to remove any restrictions and get a full 2.5 full through exhaust.

11-24-2018, 10:20 PM	#104
Roadcone StreetKart Join Date: Jul 2013 Drives: 2014 Scion FR-S Monogram Location: Upstate, SC Posts: 477 Thanks: 43 Thanked 181 Times in 111 Posts Mentioned: 10 Post(s) Tagged: 1 Thread(s)	Laid back cruise up my favorite local mountain. Mostly part throttle and keeping it under 5500. I did one for pull towards the end. Sent from my Pixel 2 XL using Tapatalk __________________ TRD\|Verus Engineering\|Titan7\|DEZOD Motorsports\|JDL Auto Design

11-29-2018, 05:43 PM	#109
JBezugs Good Job Subaru! Join Date: Mar 2016 Drives: '24 CX-50 Meridian Location: Toronto, Ontario, Canada Posts: 355 Thanks: 146 Thanked 336 Times in 157 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	So, I caved as well and picked up a set through Alpha Motorsports, with the cerakote Titanium finish. I will have them on the car and dyno tuned with OnPoint in the spring once my car comes out of storage! Beyond excited. __________________ My (no longer Green) 2017 BRZ Build Thread Last edited by JBezugs; 11-29-2018 at 07:39 PM.

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11-23-2018, 08:31 AM	#100
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,334 Thanks: 696 Thanked 2,086 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	Simple. Every dyno reads differently. ALWAYS at very least convert absolute gains numbers to relative % against baseline of unmodified car power on that dyno, if you want to do any rough comparison between numbers measured on different dynos. What might be 120 hp on one dyno, can be 220 on another. Having at least somewhat known approximate baseline of stock car dynoed on both dynos still is far from reliable means, as numbers may differ due other variables (eg. ambient temperatures/air pressure in different days and such, or cars may have different gearing from different wheels/FD, or dyno operators can also manipulate readings), but may at least approximately land in ballpark.

11-24-2018, 10:12 PM	#102
TMF Senior Member Join Date: Jul 2015 Drives: '14 FRS TT5 Location: Columbus, OH Posts: 228 Thanks: 140 Thanked 125 Times in 64 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I took advantage of JDL's Black Friday sale. Jesse was super helpful with info and recommendations and hooked me up with a great deal on the new 4-2-1 EL header, overpipe, resonated front pipe, and Delicious Tuning package. Mine is in storage for the winter, but can't wait for the install and tuning next Spring!

11-25-2018, 08:31 AM	#107
tobin Senior Member Join Date: Jun 2013 Drives: '13 BRZ Location: CT Posts: 491 Thanks: 322 Thanked 334 Times in 158 Posts Mentioned: 6 Post(s) Tagged: 1 Thread(s)	Requesting video clip with header & stock exhaust please

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