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


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Old 06-20-2017, 10:26 AM   #589
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What about this?

https://r.tapatalk.com/shareLink?url...re_pid=2919437


Sooooooo it's been a LONG time since an update.
Been super busy between multiple projects but here we go.

I finally taught myself enough Solidworks to produce what I needed pics att......


I apologize for the shitty Tapatalk copy/paste.

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You mean test fit to a spare head?
I was referring to a completed set. Currently reprinting the revisions at home right now.

http://www.ft86club.com/forums/showp...&postcount=557
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Old 06-20-2017, 10:58 AM   #590
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Nothing physically on an engine its all virtual for now.
Are you going to be running any filters? Did you ever consider placing the port injectors outside and just above the inlet for better mixture at high rpm? Seeing as our motors already have direct injection in place that could take care of idling and low rpm useage. I could see the external injector placement helping on this setup.
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Old 06-20-2017, 10:59 AM   #591
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Originally Posted by celek View Post
You mean test fit to a spare head?
I was referring to a completed set. Currently reprinting the revisions at home right now.

http://www.ft86club.com/forums/showp...&postcount=557
Was just referencing it for the guy that was asking to see how it will look with it laid out.

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Old 06-20-2017, 11:41 AM   #592
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Originally Posted by laextreme5 View Post
Are you going to be running any filters? Did you ever consider placing the port injectors outside and just above the inlet for better mixture at high rpm? Seeing as our motors already have direct injection in place that could take care of idling and low rpm useage. I could see the external injector placement helping on this setup.
I am trying to make this as easy to tune as possible,
If you move the injector you have to adjust all the timing as it will need to open sooner. The injectors of today are greatly improved vs the 1990s which were more like squirt guns. Atomization is not really a factor especially with a lower size CC injector like 600 vs 2500.

I will figure out some type of screen or filter once that's completed for street usage to avoid rocks
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Old 06-20-2017, 12:04 PM   #593
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Nothing physically on an engine its all virtual for now.
Car/engineering porn in any league... Started drooling again.

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Old 06-22-2017, 01:12 PM   #594
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I did not want to spend $5k on a stand alone system
Did you look at Hydra EMS? - it's about half the cost I think
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Old 06-22-2017, 01:19 PM   #595
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Pedal dance it. Even disabled via the button, *throttle delay comes from VSC processing all the vehicle inputs before ignoring them.

If you're sensitive enough to notice the latency, you'll immediately feel the difference after truly cutting VSC out of the logic.

Edit: *I need to clarify that this is my running theory. Apologies for stating it as fact.
Hey Ultramaroon,

I've been doing pedal dance for years on the track and for drifting but never actually paid attention to whether it improved the throttle delay.

Had a chance to try it the other day on the street. Unfortunately, It doesn't significantly improve (or at all) the throttle delay.

With pedal dance mode on, I can still slam the throttle and count a few clicks in my head before the throttle body actually moves. It's massively annoying and makes rev matching slower than it should be.

I understand stand alone ECUs such as Hydra EMS and Motec eliminate this issue (as well as rev hang). I would totally use those solutions but then I would run into headaches for vehicle inspections (not to mention the adoption cost)...
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Old 06-22-2017, 01:41 PM   #596
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Toyota seems to be improving response on their new dynamic Force 2.5L engine... Not sure if it's all due to the engine design, or the electronics improved somewhat. Makes you wonder if tweaks can be made to improve on that delay.


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Old 06-22-2017, 01:46 PM   #597
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Hey Ultramaroon,

I've been doing pedal dance for years on the track and for drifting but never actually paid attention to whether it improved the throttle delay.

Had a chance to try it the other day on the street. Unfortunately, It doesn't significantly improve (or at all) the throttle delay.

With pedal dance mode on, I can still slam the throttle and count a few clicks in my head before the throttle body actually moves. It's massively annoying and makes rev matching slower than it should be.

I understand stand alone ECUs such as Hydra EMS and Motec eliminate this issue (as well as rev hang). I would totally use those solutions but then I would run into headaches for vehicle inspections (not to mention the adoption cost)...
I hear what you're saying but I don't think that's throttle delay. I've sat in the driveway with only ignition on and listened to the throttle servo.

Maybe I'm imagining it. Not above being wrong but especially in corners with pedal dance, the throttle feels much snappier.

You know what?! I just started logging in earnest recently but I've only been looking at temps. I think I've seen both throttle plate and pedal position parameters. Duh! Maybe the tactrix logs are fast enough.
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Old 06-22-2017, 01:51 PM   #598
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Toyota seems to be improving response on their new dynamic Force 2.5L engine...
Yeah, like this! I don't want to jack @celek's thread. I'll start a new one.
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Old 06-22-2017, 02:39 PM   #599
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Yeah, like this! I don't want to jack @celek's thread. I'll start a new one.
Yeah, I don't want to bite the hands that feeds me my car/engineering porn.

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Last edited by sato; 06-23-2017 at 01:44 PM.
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Old 06-24-2017, 02:34 AM   #600
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Yeah, like this! I don't want to jack @celek's thread. I'll start a new one.
HAHA no big deal, As for the throttle delay I also look at that as driver mod. If you are not trailer braking a corner, it can be noticeable.
I have never really had an issue with the throttle in the car, maybe its just me. additionally if my clutch setup ever finishes we will see a 23lb flywheel PP and disc combo paired with a CF Driveshaft. So throttle response could be greatly improved.
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Old 06-28-2017, 09:22 AM   #601
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Out of town for work for 2 weeks just making lists of what needs to be done.
if you follow me on the book of faces I may have a sweet 86 video after this weekend of some fun in Germany... hint hint
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Old 06-28-2017, 12:44 PM   #602
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Out of town for work for 2 weeks just making lists of what needs to be done.
if you follow me on the book of faces I may have a sweet 86 video after this weekend of some fun in Germany... hint hint
Link to the page within the book of faces?

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