FRS / BRZ Intake Manifold - Development Thread - FT-86SpeedFactory by Velox - Page 31 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

VerusEric · 05-20-2015, 12:28 PM

Quote:

Originally Posted by yomny

This looks very nice..compared to that plastic piece of.. we have sitting on our engine. Sort of what the e92 m3 has, without the obvious ITB's. In for testing results.. and someone running these on their cars, NA or FI!

It looks like I'll be doing some testing on my car which is as near stock as I could keep it. The car has a mid-pipe back aluminum exhaust that likely does nothing for power, I just wanted some noise. Once I complete the testing here on the NA platform, FT-86 SpeedFactory will be doing FI testing on their time attack car

.

nastynate88 · 05-20-2015, 12:55 PM

Very excited to see what kind of power you can get NA!

gramicci101 · 05-20-2015, 12:59 PM

Would it be beneficial for the inside of the horn to be polished smooth, or is it not a big deal? Or do the slight ridges perform some function that I am unaware of?

VerusEric · 05-20-2015, 01:05 PM

Quote:

Originally Posted by nastynate88

Very excited to see what kind of power you can get NA!

Likewise. This was designed to benefit FI more so we are very curious to see how NA will react.

Quote:

Originally Posted by gramicci101

Would it be beneficial for the inside of the horn to be polished smooth, or is it not a big deal? Or do the slight ridges perform some function that I am unaware of?

It is not a big deal. That is just how this machinist decided to finish the bell horns. The ridges are very small and more aesthetic than actual ridges (probably 10 thou max between peak and valley).

HUNTERANGEL121 · 05-20-2015, 01:05 PM

Quote:

Originally Posted by gramicci101

Would it be beneficial for the inside of the horn to be polished smooth, or is it not a big deal? Or do the slight ridges perform some function that I am unaware of?

As far as I'm aware. The ridges are from the manufacturing of the horns. Polishing it would mean less resistance and turbulence I guess.

Sent from my toaster

fika84 · 05-21-2015, 12:53 PM

@NotEric6.. is this thing installed on your car yet or what??? This suspense is killing me!

cdrazic93 · 05-21-2015, 03:03 PM

Make the manifold slighty higher and add a throttle body to each veolcity stack so you can have debris-less ITB's ;D

burdickjp · 05-21-2015, 06:56 PM

Quote:

Originally Posted by HUNTERANGEL121

As far as I'm aware. The ridges are from the manufacturing of the horns. Polishing it would mean less resistance and turbulence I guess.

If that is the case then their CNC programmer has gotten so bored he's doing some very strange things with tool paths.

RJasonKlein · 05-21-2015, 07:43 PM

Quote:

Originally Posted by NotEric6

The car has a mid-pipe back aluminum exhaust that likely does nothing for power, I just wanted some noise.

I don't want to hijack your thread, but your aluminum exhaust has piqued my curiosity - can you tell us a little about it and post some pictures? If not here, then maybe on another thread?

VerusEric · 05-21-2015, 07:48 PM

Quote:

Originally Posted by fika84

@NotEric6.. is this thing installed on your car yet or what??? This suspense is killing me!

I'm hoping this weekend

.

Quote:

Originally Posted by cdrazic93

Make the manifold slighty higher and add a throttle body to each veolcity stack so you can have debris-less ITB's ;D

Space is an issue.

Quote:

Originally Posted by bur****jp

If that is the case then their CNC programmer has gotten so bored he's doing some very strange things with tool paths.

It was milled, not turned. So realistically the cut time was the same regardless. If we take this exact design to production (which is very much unsure right now), it will be a turned part.

Quote:

Originally Posted by RJasonKlein

I don't want to hijack your thread, but your aluminum exhaust has piqued my curiosity - can you tell us a little about it and post some pictures? If not here, then maybe on another thread?

PM'd

2much · 05-21-2015, 08:06 PM

what aluminum exhaust??

burdickjp · 05-21-2015, 09:40 PM

Quote:

Originally Posted by NotEric6

It was milled, not turned. So realistically the cut time was the same regardless. If we take this exact design to production (which is very much unsure right now), it will be a turned part.

It'd be impossible to do that on a lathe which doesn't have live tooling!
Of course it's milled. It's still a funky toolpath. Maybe they had difficulty getting a conventional path to work and this was the best way they could minimize tooling marks? I'd argue that's what post processing is for. Of course customers would rather see a sexy milled part than something which has been finished by sanding. I'm more of a form follows function kinda guy.
Are you going to finish these prototypes out to a smooth interior surface?

cdrazic93 · 05-21-2015, 10:02 PM

Quote:

Originally Posted by NotEric6

Space is an issue.

Calum · 05-22-2015, 06:21 AM

Quote:

Originally Posted by bur****jp

It'd be impossible to do that on a lathe which doesn't have live tooling!
Of course it's milled. It's still a funky toolpath. Maybe they had difficulty getting a conventional path to work and this was the best way they could minimize tooling marks? I'd argue that's what post processing is for. Of course customers would rather see a sexy milled part than something which has been finished by sanding. I'm more of a form follows function kinda guy.
Are you going to finish these prototypes out to a smooth interior surface?

Why would it be impossible to turn a bell mouth on a lathe?

05-21-2015, 03:03 PM	#427
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)	Make the manifold slighty higher and add a throttle body to each veolcity stack so you can have debris-less ITB's ;D __________________ "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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05-20-2015, 12:55 PM	#422
nastynate88 Member Join Date: Jul 2014 Drives: 2014 BRZ Location: Anytown, USA Posts: 97 Thanks: 8 Thanked 41 Times in 23 Posts Mentioned: 1 Post(s)	Very excited to see what kind of power you can get NA!

05-20-2015, 12:59 PM	#423
gramicci101 Off Topic Join Date: Feb 2014 Drives: 2014 Subaru BRZ Limited Location: Vegas, baby! Posts: 4,610 Thanks: 2,369 Thanked 4,243 Times in 2,170 Posts Mentioned: 43 Post(s)	Would it be beneficial for the inside of the horn to be polished smooth, or is it not a big deal? Or do the slight ridges perform some function that I am unaware of?

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