Motor Trend: 2016 Miata vs 2015 BRZ - Page 50 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Entroper · 09-25-2015, 09:49 AM

Quote:

Originally Posted by HUNTERANGEL121

http://forum.miata.net/vb/showthread.php?t=589349

Anyone see this yet?

Which part? There are several things going on in that thread.

HUNTERANGEL121 · 09-25-2015, 09:59 AM

Quote:

Originally Posted by Entroper

Which part? There are several things going on in that thread.

Well, mostly just a tune and exhaust and its healthy gains

200whp looks very possible as long as intake side of head is ported. I had a feeling there was going to be a bottleneck somewhere in the head.

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WolfpackS2k · 09-25-2015, 02:05 PM

200whp?! The tuners in that thread stated that the intake side of the engine is preventing them from making more than 165 whp. So you're assuming that a modified head with better flow will give you 35 additional whp? That's highly unlikely.

The gains they published in that thread for a tune are somewhat impressive, but let's not get carried away here. They even said themselves that fixing the intake flow blockage should yield around 180 whp.

HUNTERANGEL121 · 09-25-2015, 02:06 PM

I'm not assuming just ported head. Cams, manifold, the works.
NC miata was able to make 200whp iirc from cam, itb, and a nice header.

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WolfpackS2k · 09-25-2015, 02:09 PM

Yeah sure, if you're gonna get into serious modifications of course 200 whp is possible. Any 2.0 liter engine worth a damn these days can easily achieve that power figure.

HUNTERANGEL121 · 09-25-2015, 02:10 PM

I don't consider some head work a too serious mod

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WolfpackS2k · 09-25-2015, 02:21 PM

Ported heads and aftermarket cams not serious work? That's more serious work that added forced induction.

What's your idea of serious work? Adding forged internals, blueprinting the engine, stroking out the engine a bit? lol

HUNTERANGEL121 · 09-25-2015, 02:30 PM

Quote:

Originally Posted by WolfpackS2k

Ported heads and aftermarket cams not serious work? That's more serious work that added forced induction.

What's your idea of serious work? Adding forged internals, blueprinting the engine, stroking out the engine a bit? lol

Head work is easy being that dad is a mechanic and I have access to tools. Lower end work would be different.

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EAGLE5 · 09-25-2015, 02:30 PM

True. Probably cheaper to slap on a turbo than to get 200whp na. I wonder if this will be the first miata I can get comfortable in.

HUNTERANGEL121 · 09-25-2015, 03:02 PM

Quote:

Originally Posted by jsimon7777

True. Probably cheaper to slap on a turbo than to get 200whp na. I wonder if this will be the first miata I can get comfortable in.

I wonder if FI would be feasible. 13. Something compression ratio.

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EAGLE5 · 09-25-2015, 04:40 PM

Of course it can be turbocharged. If 12.5 can go turbo, 13 can too. It's all a matter of fuel choice and tuning.

abraxis · 09-25-2015, 05:53 PM

Quote:

Originally Posted by HUNTERANGEL121

Head work is easy being that dad is a mechanic and I have access to tools. Lower end work would be different.

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Care to share your before and after flowbenches to show us your handiwork when it comes to performing 'basic' mods like headporting?

swarb · 09-25-2015, 06:18 PM

Poodles · 09-26-2015, 07:45 PM

This isn't the old days where ports didn't match in shape at all to the gaskets or manifolds and there was massive casting flash in the ports... Modern engine designs don't show much gains when it comes to porting, usually it's from installing larger valves and cutting down the valve guides (which isn't great for longevity).

Cams aren't too bad to install, but have fun now that you've lost that torque advantage...

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09-25-2015, 06:18 PM	#699
swarb Senior Member Join Date: Sep 2014 Drives: BRZ Location: Los Angeles Posts: 3,052 Thanks: 1,773 Thanked 2,451 Times in 1,271 Posts Mentioned: 79 Post(s) Tagged: 0 Thread(s)

09-26-2015, 07:45 PM	#700
Poodles Senior Member Join Date: Oct 2013 Drives: 2015 Series.Blue Location: Fort Worth, TX Posts: 1,781 Thanks: 88 Thanked 781 Times in 481 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	This isn't the old days where ports didn't match in shape at all to the gaskets or manifolds and there was massive casting flash in the ports... Modern engine designs don't show much gains when it comes to porting, usually it's from installing larger valves and cutting down the valve guides (which isn't great for longevity). Cams aren't too bad to install, but have fun now that you've lost that torque advantage...

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