FRS / BRZ Intake Manifold - Development Thread - FT-86SpeedFactory by Velox - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

eric6 · 02-16-2015, 03:07 AM

Quote:

Originally Posted by mrk1

Looks pretty but whats the goal, mid range torque? top end hp?

The goal was to come up with a unique, completely unlike oem, design that was more efficient throughout the rev range. Truthfully, we don't know much about how this will perform yet besides cylinder distribution when all valves are open (an unrealistic event but it helped us shape the plenums for how air naturally wants to enter). From previous knowledge it points to be a top end, FI geared, intake manifold. However, also from previous knowledge, a more efficient design can improve VE in areas the runners/intake manifold wouldn't typically be thought to. We make no claims until the test unit gets on the car and is thoroughly tested

.

Captain Snooze · 02-16-2015, 03:20 AM

Quote:

Originally Posted by eric6

We make no claims until the test unit gets on the car and is thoroughly tested

So I can check back in 15 minutes to see the results?

On a more serious note (b#) could you give a best case guestimate, based on experience, what might be the increase in power over a rev range for a normally aspirated engine? I appreciate this is not set in stone but I would like to know if I should keep watching this thread or give it up because I wish to remain n/a. 5 hp increase over 3k-4k rpm not worthwhile. 12 hp over 5k-7.6k rpm would be good.

eric6 · 02-16-2015, 10:32 AM

Quote:

Originally Posted by Captain Snooze

So I can check back in 15 minutes to see the results?

On a more serious note (b#) could you give a best case guestimate, based on experience, what might be the increase in power over a rev range for a normally aspirated engine? I appreciate this is not set in stone but I would like to know if I should keep watching this thread or give it up because I wish to remain n/a. 5 hp increase over 3k-4k rpm not worthwhile. 12 hp over 5k-7.6k rpm would be good.

It would be extremely naive of us to put numbers out. It will likely increase hp up top more so then in the mid-range based off runner length. Again, if the system proves to be more efficient then the OEM system, mid-range could gain horsepower as well.

Calum · 02-16-2015, 10:59 AM

What's the volume of the plenums? They look small but I'm looks ng at this on a phone.

What kind if time line are you aiming for?

DustinS · 02-16-2015, 11:11 AM

Subbed! Loving what you guys are bringing to the market. I also love seeing all the data with the products. Keep up the great work!

Yurgle · 02-16-2015, 11:31 AM

eric6 · 02-16-2015, 04:01 PM

Quote:

Originally Posted by Calum

What's the volume of the plenums? They look small but I'm looks ng at this on a phone.

What kind if time line are you aiming for?

Approximately 2 liters.

Prototype strapped to car and dynoed by end of March.

Captain Snooze · 02-16-2015, 04:22 PM

Quote:

Originally Posted by eric6

Prototype strapped to car and dynoed by end of March.

http://www.timeanddate.com/countdown...=0&min=0&sec=0

Turdinator · 02-16-2015, 06:50 PM

Quote:

Originally Posted by eric6

Approximately 2 liters.

Prototype strapped to car and dynoed by end of March.

2lts per plenum or total?

continuecrushing · 02-16-2015, 06:58 PM

geez, you guys are cranking it out!

Quit keeping secrets from us! What else have your evil little elves been working on?!?!

eric6 · 02-16-2015, 07:16 PM

Quote:

Originally Posted by Turdinator

2lts per plenum or total?

Per side, not including the tubing.

Quote:

Originally Posted by Shutter

geez, you guys are cranking it out!

Quit keeping secrets from us! What else have your evil little elves been working on?!?!

I wouldn't say cranking them out but we are moving in a forward direction with quite a few projects.

We have a handful of other projects we are working on getting prototyped/finalized. They will remain a mystery until we (FT86SpeedFactory and ourselves) feel they can be released

.

djliquidsteele · 02-16-2015, 07:45 PM

So with FI in mind, specifically supercharged, in theory, will something like this allow the engine to keep making power past 7000 rpm. Stock seems to die off and it seems no matter how much air you try to shove in there, it still dies off toward redline.

Calum · 02-16-2015, 08:28 PM

Quote:

Originally Posted by djliquidsteele

So with FI in mind, specifically supercharged, in theory, will something like this allow the engine to keep making power past 7000 rpm. Stock seems to die off and it seems no matter how much air you try to shove in there, it still dies off toward redline.

Without testing it's impossible to tell. The choke point could be the intake manifold or the head, or both.

cdrazic93 · 02-16-2015, 08:36 PM

I was about to ask (I think this has already been answered) since both intake runners seem to feed two cylinders at once, wouldn't the piston firing order cause a difference in pressure in the manifold? or is that what the intermediate hose is for?

02-16-2015, 11:11 AM	#19
DustinS Senior Member Join Date: Apr 2014 Drives: 2013 Ultramarine FR-S Location: Springfield, MO Posts: 1,948 Thanks: 2,539 Thanked 1,414 Times in 804 Posts Mentioned: 31 Post(s) Tagged: 3 Thread(s)	Subbed! Loving what you guys are bringing to the market. I also love seeing all the data with the products. Keep up the great work! __________________

02-16-2015, 08:36 PM	#28
cdrazic93 Junior Join Date: Aug 2013 Drives: a car Location: Probably at school Posts: 4,341 Thanks: 3,184 Thanked 2,512 Times in 1,502 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	I was about to ask (I think this has already been answered) since both intake runners seem to feed two cylinders at once, wouldn't the piston firing order cause a difference in pressure in the manifold? or is that what the intermediate hose is for? __________________ "Ah! What music! They could have never imagined, those pioneers who invented the automobile, that it would posses us like this, our imaginations, our dreams. Men love women, but even more than that, men love CARS!"-Lord Hesketh

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02-16-2015, 07:45 PM	#26
djliquidsteele Senior Member Join Date: Apr 2012 Drives: Scion FR-S Location: Louisville, KY Posts: 498 Thanks: 62 Thanked 130 Times in 92 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	So with FI in mind, specifically supercharged, in theory, will something like this allow the engine to keep making power past 7000 rpm. Stock seems to die off and it seems no matter how much air you try to shove in there, it still dies off toward redline.

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