PLM Long Tube Header - Page 20 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

raven1231 · 06-17-2015, 08:14 AM

Quote:

Originally Posted by Shady195

Really? I'm running the 93 EL map and from about 3k up my car pulls.

Ah you must have the PMD header instead of the PLM.

Shady195 · 06-17-2015, 08:18 AM

Quote:

Originally Posted by raven1231

Ah you must have the PMD header instead of the PLM.

Ahh yes, the different letters must bring the torque dip back a few hundred RPM's

raven1231 · 06-17-2015, 08:21 AM

Quote:

Originally Posted by Shady195

Ahh yes, the different letters must bring the torque dip back a few hundred RPM's

Yes sir! PMD will tell you more about it. That's the reason theirs cost about $300 more than the PLM.

KoolBRZ · 06-17-2015, 10:34 AM

Quote:

Originally Posted by ZHoward

Hi, so which one is 91 EL stage 2 best map? a little confused, running PLM header and weak around 3k-4k

That would be the third pic, runs 5 - 6. My best tune without wayno's additions. The torque dip isn't easy to tune out without a dedicated dyno. Get a supercharger. It completely eliminates torque dips. If I ever eliminate the torque dip on my car before I get my ESC, I'll post the Intake and Exhaust "safe" tables to put into your tune. I hate that torque dip with a smoldering resentment, like "How could they?". It's an insult to this fine automobile.

ZHoward · 06-17-2015, 11:23 AM

Anyone PLM header can fit OEM air box? For me I think it is not enough space

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Shady195 · 06-17-2015, 11:30 AM

Quote:

Originally Posted by ZHoward

Anyone PLM header can fit OEM air box? For me I think it is not enough space

Sent from my iPhone using Tapatalk

Yes. They include a plug to remove the resonating chamber that is in the way of the header.

The larger resonating chamber in the intake does get quite warm. There may be a chance of it melting under really heavy repeated load. However a full drift day in 90* heat and I did not have a problem.

I will be getting an aftermarket intake at some point however.

KoolBRZ · 06-17-2015, 12:15 PM

I went to http://www.otctools.com/ve to calculate VE on my best run. Not good. Best at full throttle, top speed was 77%. High IAT was definitely a factor. I'm going to find the calculations to do a quick and dirty VE to include in a spreadsheet that I can paste my logs into. That will at least help me tune out the torque dip by increasing the VE in the bad areas. Here are some pics illustrating the bad areas.

Hyper4mance2k · 06-17-2015, 12:49 PM

Quote:

Originally Posted by raven1231

Ah you must have the PMD header instead of the PLM.

P.M.D. Header Dyno test results linked below.
[ame="https://www.youtube.com/watch?v=muAt4evb7Sk"]P.M. Dawn - Set Adrift On Memory Bliss (16:9 HD) /1991/ - YouTube[/ame]

edit:
This is what happens if you don't buy PMD. Apparently the part dies without you...
[ame="https://www.youtube.com/watch?v=C_qWlPCEnGM"]PM Dawn - I'd Die Without You - YouTube[/ame]

ZHoward · 06-17-2015, 12:58 PM

Quote:

Originally Posted by Shady195

Yes. They include a plug to remove the resonating chamber that is in the way of the header.

The larger resonating chamber in the intake does get quite warm. There may be a chance of it melting under really heavy repeated load. However a full drift day in 90* heat and I did not have a problem.

I will be getting an aftermarket intake at some point however.

Can u post pic? Thanks

Sent from my iPhone using Tapatalk

Koa · 06-17-2015, 01:01 PM

Quote:

Originally Posted by KoolBRZ

That would be the third pic, runs 5 - 6. My best tune without wayno's additions. The torque dip isn't easy to tune out without a dedicated dyno. Get a supercharger. It completely eliminates torque dips. If I ever eliminate the torque dip on my car before I get my ESC, I'll post the Intake and Exhaust "safe" tables to put into your tune. I hate that torque dip with a smoldering resentment, like "How could they?". It's an insult to this fine automobile.

kool will you be my friend? I feel like we got off on the wrong foot.

Shady195 · 06-17-2015, 01:09 PM

Quote:

Originally Posted by ZHoward

Can u post pic? Thanks

Sent from my iPhone using Tapatalk

A pic of what? There are plenty of this one and the nameless (they are identical as far as how they mount/clearances)

Shady195 · 06-17-2015, 09:56 PM

I have to admit while I love the sound of the header at natural revs, under a heavy load they sound like shit..

I just spent the night replacing and trying to find an exhaust leak, there does not appear to be one so I can only assume its the headers making noise from being "thin" and probably a shitty merge collector.

I'm going to play around a bit more and see if I can track it down, otherwise I'm going to attribute it to header noise.

The higher pitch sound at high RPM's doesn't bother me. I think these headers make the exhaust itself sound quite exotic with my TRD catback. I just can't stand going past buildings and hearing a "ticking/rattling" noise under load from the header.

ZHoward · 06-17-2015, 10:16 PM

Quote:

Originally Posted by Shady195

A pic of what? There are plenty of this one and the nameless (they are identical as far as how they mount/clearances)

I want I to see how can u fit OEM air intake, cause I tried and I don't have enough space

Sent from my iPhone using Tapatalk

Shady195 · 06-17-2015, 10:17 PM

Quote:

Originally Posted by ZHoward

I want I to see how can u fit OEM air intake, cause I tried and I don't have enough space

Sent from my iPhone using Tapatalk

Is it hitting a small resonator box?

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06-17-2015, 11:23 AM	#271
ZHoward Senior Member Join Date: Feb 2015 Drives: 2013 brz limited Location: LA 626 area Posts: 266 Thanks: 59 Thanked 33 Times in 24 Posts Mentioned: 2 Post(s)	Anyone PLM header can fit OEM air box? For me I think it is not enough space Sent from my iPhone using Tapatalk

06-17-2015, 09:56 PM	#278
Shady195 Senior Member Join Date: Jun 2014 Drives: '13 10 Series FRS #1203 Location: Albany, NY Posts: 850 Thanks: 7 Thanked 386 Times in 221 Posts Mentioned: 5 Post(s)	I have to admit while I love the sound of the header at natural revs, under a heavy load they sound like shit.. I just spent the night replacing and trying to find an exhaust leak, there does not appear to be one so I can only assume its the headers making noise from being "thin" and probably a shitty merge collector. I'm going to play around a bit more and see if I can track it down, otherwise I'm going to attribute it to header noise. The higher pitch sound at high RPM's doesn't bother me. I think these headers make the exhaust itself sound quite exotic with my TRD catback. I just can't stand going past buildings and hearing a "ticking/rattling" noise under load from the header.

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