The Independent Review: Toyota GT86

[carbonBLUE]

either way... another way to look at it...

how many brands improve the average fleet mpgs with a new sports car... especially since toyota is already known for having one of the best

[serialk11r]

FA20 appears to have cam phasing, no variable lift of any sort, as the head does not appear to have the space to accommodate the extra rocker/rollers/followers/whatever which all variable lift systems have. Sadly since boxer engines are so wide, I'm guessing variable lift won't make it for space reasons, unless they're willing to really change some stuff around. Valvematic doesn't provide a performance benefit in itself, but the better part load efficiency could give some emissions/efficiency headroom for larger cams for max power.

D4-S acts independently (as does any fuel injection) although timing is optimized according to the other parameters, if that's what you mean. I suppose D4-S + Valvematic (which needs to go with variable cam phasing to advance the cam when duration is shorter) makes tuning a bit difficult since lift dictates duration dictates load, and you would need to figure out direct injector timing not only at different speed but at different load as well.

Anyways, there's no reason a sports car should necessarily get worse mpg, just that up till recently engines have not been advanced enough to preserve fuel economy while offering high performance. D4-S seems pretty remarkable in that it can significantly improve combustion at low rpm even with a fixed profile cam that makes max torque at 6600 :O (besides the fuel economy/emissions benefits)

And I apologize that fuel economy appears in like 90% of my posts, I just like analyzing the thermodynamics a lot :P

[Stigmaru]

Originally Posted by serialk11r

FA20 appears to have cam phasing, no variable lift of any sort, as the head does not appear to have the space to accommodate the extra rocker/rollers/followers/whatever which all variable lift systems have. Sadly since boxer engines are so wide, I'm guessing variable lift won't make it for space reasons, unless they're willing to really change some stuff around. Valvematic doesn't provide a performance benefit in itself, but the better part load efficiency could give some emissions/efficiency headroom for larger cams for max power.

D4-S acts independently (as does any fuel injection) although timing is optimized according to the other parameters, if that's what you mean. I suppose D4-S + Valvematic (which needs to go with variable cam phasing to advance the cam when duration is shorter) makes tuning a bit difficult since lift dictates duration dictates load, and you would need to figure out direct injector timing not only at different speed but at different load as well.

Anyways, there's no reason a sports car should necessarily get worse mpg, just that up till recently engines have not been advanced enough to preserve fuel economy while offering high performance. D4-S seems pretty remarkable in that it can significantly improve combustion at low rpm even with a fixed profile cam that makes max torque at 6600 :O (besides the fuel economy/emissions benefits)

And I apologize that fuel economy appears in like 90% of my posts, I just like analyzing the thermodynamics a lot :P

In layman's terms: Not many $25K sports cars have direct fuel injection

[Navi]

Another review that says it will be released in June.... (8/6?)

[miata]

June and spring. Officially June 21st is the beginning of summer so it will be sometime before then.

[Guff]

For some reason, 8/6 (June 8th 2012) sounds like the day...

I want it earlier, but that date is pretty darn cool!

[Snoopyalien24]

Originally Posted by Guff

For some reason, 8/6 (June 8th 2012) sounds like the day...

I want it earlier, but that date is pretty darn cool!

I wouldn't mind 8/6 either even if it was August 6th.

That would be so awesome

[Levi]

I think I won't have any problem with consuption. My Alfa is new and I pay I need 10 liters to drive 100 km. I am sure the BRZ will be better and yet more powerful.

[carbonBLUE]

Originally Posted by miata

June and spring. Officially June 21st is the beginning of summer so it will be sometime before then.

well if they drop it on june 20th (my b-day) ill be a happy mother fucker, i plan on buynig the car in cash then driving to vegas for the break in then blow some more money cause i can...

[DRACHENV6]

wow... 35mpg?! If true, this car would be good enough to be a daily driver for many folks. It would compare nicely with the corolla, and give other car manufacturers a reason to panic.

comparison:
2011 corolla 5spd - 2734 lbs 28/35mpg
2012 scion frs 6spd - 2700(?) lbs ??/35mpg


Those are crazy numbers. If everything they say is true, than toyota was justified in adding D4-S tech and subaru benefited as much as toyota, if not more from the collaboration.

[carbonBLUE]

Originally Posted by DRACHENV6

wow... 35mpg?! If true, this car would be good enough to be a daily driver for many folks. It would compare nicely with the corolla, and give other car manufacturers a reason to panic.

comparison:
2011 corolla 5spd - 2734 lbs 28/35mpg
2012 scion frs 6spd - 2700(?) lbs ??/35mpg


Those are crazy numbers. If everything they say is true, than toyota was justified in adding D4-S tech and subaru benefited as much as toyota, if not more from the collaboration.

i hope its 35 average between city and highway itll make the corolla look like a gas guzzler lol

[Infernal]

Originally Posted by Guff

For some reason, 8/6 (June 8th 2012) sounds like the day...

I want it earlier, but that date is pretty darn cool!

that would be perfect - my insurance si due for renewal then :P

pulling my hair out waitinng to drive this thing

[carbonBLUE]

Looks like DAVCS will be behind the valvetrain timing

[WhiteGDB]

Originally Posted by AeroWRX

In layman's terms: Not many $25K sports cars have direct fuel injection

Except there are a lot of sporty cars with direct injection in the $25k range. Just off the top of my head:

VW GTI/GLI
V6 Camaro
Colbalt SS
Mazdaspeed 3
New Genesis Coupe?