Official 2017 MY CHANGES (Full Document) and Backwards Compatibility Discussion - Page 12 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Stang70Fastback · 06-29-2016, 10:27 AM

Quote:

Originally Posted by Da Brz

Looks like my car still has the old style fuel pump. Build date is 3/16.

Darn. Now I really want to find people with the new fuel pump and see if they have crickets.

Summerwolf · 06-29-2016, 10:28 AM

I want the front bumper for the BRZ, with foglights, and the new fuel pump if it is cricket free, lol.

ayau · 06-29-2016, 10:57 AM

Moto San's impression of the 2017 BRZ. He said in the interview that the 5HP bump is more like 15-20HP, because the 2017 models are more accurately measured compared to the previous models. Can anyone validate this?

[ame="https://www.youtube.com/watch?v=CcAw3apQwQM"]Moto San's impression on the 2017 Series.Yellow BRZ - YouTube[/ame]

NLS8520 · 06-29-2016, 11:20 AM

Quote:

Originally Posted by ayau

Moto San's impression of the 2017 BRZ. He said in the interview that the 5HP bump is more like 15-20HP, because the 2017 models are more accurately measured compared to the previous models. Can anyone validate this?

I have been following the rework pretty closely and there is no validation at this time. I will say if it comes from Moto, I tend to believe that as fact.

daiheadjai · 06-29-2016, 12:21 PM

Hmmm... With all the LED bulbs, I wonder if the 17s can swap headlamps or taillights with other gens

Sent from my SGH-I747M using Tapatalk

pinski · 06-29-2016, 12:25 PM

Quote:

Originally Posted by daiheadjai

Hmmm... With all the LED bulbs, I wonder if the 17s can swap headlamps or taillights with other gens

Sent from my SGH-I747M using Tapatalk

Probably - the only thing that might need changed would be the flasher, like when upgrading to LED turn signals on current cars as long as the connectors are the same.

raven1231 · 06-29-2016, 01:03 PM

Quote:

Originally Posted by ayau

Moto San's impression of the 2017 BRZ. He said in the interview that the 5HP bump is more like 15-20HP, because the 2017 models are more accurately measured compared to the previous models. Can anyone validate this?

The dyno charts provided seem to say otherwise.

nikitopo · 06-29-2016, 01:05 PM

Quote:

Originally Posted by raven1231

The dyno charts provided seem to say otherwise.

Exactly!

DatsunDimer · 06-29-2016, 01:17 PM

It was my understanding that the 15-20 is WHP. If the early models get 155-165 at the wheels currently, that number will now be 175-185 for MY17. Actually power being put down will be much closer to the catalog horsepower.

raven1231 · 06-29-2016, 01:26 PM

Quote:

Originally Posted by DatsunDimer

It was my understanding that the 15-20 is WHP. If the early models get 155-165 at the wheels currently, that number will now be 175-185 for MY17. Actually power being put down will be much closer to the catalog horsepower.

Now that you mention it the dyno chart that was provided was an engine dyno so this would make sense.

ayau · 06-29-2016, 01:31 PM

Quote:

Originally Posted by DatsunDimer

It was my understanding that the 15-20 is WHP. If the early models get 155-165 at the wheels currently, that number will now be 175-185 for MY17. Actually power being put down will be much closer to the catalog horsepower.

The only thing that was changed outside of the engine was the final gear. Would this affect the WHP numbers by 15-20?

Stang70Fastback · 06-29-2016, 01:36 PM

Quote:

Originally Posted by ayau

The only thing that was changed outside of the engine was the final gear. Would this affect the WHP numbers by 15-20?

This is my question. There are a lot of efficiency improvements to the engine itself, but that alone doesn't increase the WHP ratio in relation to the engine.

Stephen W. · 06-29-2016, 01:55 PM

Sorry, I don’t see it. How do you gain 20 WHP just by hardening a few gear teeth and changing the final drive ratio?

To make what essentially computes to a 10% gain you’d have to decrease the number of friction points and greatly reduce the friction at all remaining points. Not to mention overcoming inertial loss, drag, windage, pumping and heat.

I say either, much more has been changed in the driveline than so far released or that 20 WHP figure is just pre sales hype.

sodjer · 06-29-2016, 01:55 PM

Quote:

Originally Posted by daiheadjai

Hmmm... With all the LED bulbs, I wonder if the 17s can swap headlamps or taillights with other gens

Sent from my SGH-I747M using Tapatalk

I'm hoping so, really like the new taillights

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06-29-2016, 10:28 AM	#156
Summerwolf Panda Trueno Join Date: Jan 2015 Drives: No twin now. Location: North Indiana Posts: 3,347 Thanks: 2,113 Thanked 2,407 Times in 1,332 Posts Mentioned: 17 Post(s) Tagged: 2 Thread(s)	I want the front bumper for the BRZ, with foglights, and the new fuel pump if it is cricket free, lol.

06-29-2016, 10:57 AM	#157
ayau Senior Member Join Date: Nov 2011 Drives: Some rust bucket Location: Polar ice cap Posts: 3,058 Thanks: 312 Thanked 1,045 Times in 556 Posts Mentioned: 37 Post(s) Tagged: 0 Thread(s)	Moto San's impression of the 2017 BRZ. He said in the interview that the 5HP bump is more like 15-20HP, because the 2017 models are more accurately measured compared to the previous models. Can anyone validate this? [ame="https://www.youtube.com/watch?v=CcAw3apQwQM"]Moto San's impression on the 2017 Series.Yellow BRZ - YouTube[/ame]

06-29-2016, 12:21 PM	#159
daiheadjai Senior Member Join Date: Feb 2012 Drives: 2003 S2000, 2008 Fit Location: Toronto, ON, Canada Posts: 1,990 Thanks: 2,584 Thanked 1,154 Times in 688 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Hmmm... With all the LED bulbs, I wonder if the 17s can swap headlamps or taillights with other gens Sent from my SGH-I747M using Tapatalk

06-29-2016, 01:17 PM	#163
DatsunDimer Member Join Date: May 2016 Drives: Datsun 510 Location: WI Posts: 89 Thanks: 100 Thanked 77 Times in 39 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	It was my understanding that the 15-20 is WHP. If the early models get 155-165 at the wheels currently, that number will now be 175-185 for MY17. Actually power being put down will be much closer to the catalog horsepower.

06-29-2016, 01:55 PM	#167
Stephen W. Senior Member Join Date: Jan 2016 Drives: 1993 Caterham HPC Evo Location: Quinte West Ontario Posts: 1,479 Thanks: 1,223 Thanked 2,519 Times in 984 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	Sorry, I don’t see it. How do you gain 20 WHP just by hardening a few gear teeth and changing the final drive ratio? To make what essentially computes to a 10% gain you’d have to decrease the number of friction points and greatly reduce the friction at all remaining points. Not to mention overcoming inertial loss, drag, windage, pumping and heat. I say either, much more has been changed in the driveline than so far released or that 20 WHP figure is just pre sales hype.

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