Official: Toyota FT-1 Concept / First New Supra Prototype Spotted!

[ZDan]

Originally Posted by Irace86.2.0

The Corvette’s engine does sit low because it is further back but it is significantly higher than the 86 motor.

Again, the 86 crankshaft sits quite HIGH. Heads are low because flat-4, but the crankshaft, flywheel, clutch, and trans are all UP there. I would bet 86 crank height is a good 2" higher vs. Corvette. Of course the Corvette's cylinder heads are higher than the 86's. I would still bet that combined engine, flywheel, clutch, transmission c.g. height is probably comparable between the two.

BTW, the curb weight and distribution I have seen is without a driver. I can’t find the thread when the guy weighed himself in the car. I’m curious to know if there would be a significant difference. Obviously the height and weight of the driver will be important variables:
http://www.ft86club.com/forums/showthread.php?t=4287

The thread you link gives pre-production weight 2723 lb, with 55/45 f/r distribution. One guy *speculates* that it might be close to 50/50 with driver and fuel *and battery relocation*.

But since front-seaters in the 86 are very near the middle of the car, they don't impact front/rear distrubution nearly as much as they do in a cab-rearward 2-seater like the S2000. In the S2000 the driver is 75% on the rear wheels. On my FD (2+2 in Japan) the driver is 66% on the rear wheels. I'd be surprised if more than 60% of the driver's weight is on the rear wheels in an FT86, so weight distribution with driver isn't going to be that much more rearward.

Click the "Download Test Sheet" here: https://www.caranddriver.com/scion/fr-s
2761 lb., 55.2F/44.8R without driver
Add a 165 lb. driver at 40/60 and overall distribution goes to 54.4/47.6.

[abraxis]

Lol, most of that pic on top of the boxer is just intake plenum. The block, heads, pistons valvetrain all sit lower. Saying the boxer engine has no impact or it's effect on COG is zero is simply ridiculous.

50/50 is just marketing shtick used by goobers to pull the wool over the eyes of the masses that can't math. Ideal or 'perfect' bias is rearward 55-65 depending on other factors.

So what's the CoG of a Corvette compared to a 911 GT3 these days with a zero impact boxer engine? Regardless, the engine is just one factor. If you can convince me a 911 would have a better or equal CoG with a V engine in the rear instead of a boxer, then feel free.

[fatoni]

Originally Posted by abraxis

Lol, most of that pic on top of the boxer is just intake plenum. The block, heads, pistons valvetrain all sit lower. Saying the boxer engine has no impact or it's effect on COG is zero is simply ridiculous.

50/50 is just marketing shtick used by goobers to pull the wool over the eyes of the masses that can't math. Ideal or 'perfect' bias is rearward 55-65 depending on other factors.

So what's the CoG of a Corvette compared to a 911 GT3 these days with a zero impact boxer engine? Regardless, the engine is just one factor. If you can convince me a 911 would have a better or equal CoG with a V engine in the rear instead of a boxer, then feel free.

When the C7 came out it was the lowest car and driver had measured so I imagine that the 911 would be lucky to be close.

[Summerwolf]

Originally Posted by ZDan

Again, the 86 crankshaft sits quite HIGH. Heads are low because flat-4, but the crankshaft, flywheel, clutch, and trans are all UP there. I would bet 86 crank height is a good 2" higher vs. Corvette. Of course the Corvette's cylinder heads are higher than the 86's. I would still bet that combined engine, flywheel, clutch, transmission c.g. height is probably comparable between the two..

What?

[ZDan]

Originally Posted by abraxis

Lol, most of that pic on top of the boxer is just intake plenum. The block, heads, pistons valvetrain all sit lower. Saying the boxer engine has no impact or it's effect on COG is zero is simply ridiculous.

I specifically pointed out the height of the CRANK. It is quite a bit HIGHER relative to cars with inline or V engines. This dictates the height of a lot of heavy stuff: the bottom end structure of the engine block, the flywheel, the clutch, and most of the transmission (mitigated somewhat by angling it downward as it goes aft).

The heads are lower vs. inline and V engines. That's it. Flat engines giving a lower c.g. is a promise that just didn't work out...

50/50 is just marketing shtick used by goobers to pull the wool over the eyes of the masses that can't math. Ideal or 'perfect' bias is rearward 55-65 depending on other factors.

Agree that more rearward is better. 50/50 is pretty good, but anybody that says it's "perfect" doesn't know what they are talking about...
The FT86's flat engine configuration does not help in f/r distribution as noted previously.

So what's the CoG of a Corvette compared to a 911 GT3 these days with a zero impact boxer engine?

Last I looked into this it was Porsche 18", Corvette 17".

[abraxis]

Originally Posted by ZDan

Last I looked into this it was Porsche 18", Corvette 17".

17.5" actually per Car n Driver 2014. I did specify the GT3 for a reason, being naturally aspirated without all the turbos, plumbing, etc. That's why I'm curious.

That's also why I flipped the script, asking if a 911 would have a lower or equal CoG with a V6 OHV instead of a boxer. I don't think so personally.

[abraxis]

Here's some food for thought.

GT86 - CoG 18.1"; Height 50.59"

Corvette - CoG 17.5"; Height 48.80"

Ground clearance and wheel gap numbers are harder to come by...

[gymratter]

RyleyMA61 over at the MKV forum made these to help people look past the camo on the window and winter wheels.

[LancePower]

Originally Posted by ZDan

Add a 165 lb. driver at 40/60 and overall distribution goes to 54.4/47.6.

[vh_supra26]

I thought these looked pretty cool.

https://www.supramkv.com/threads/gra...each.51/page-7

[Irace86.2.0]

Funny but those are the best looking renderings/pics so far.

[vh_supra26]

[ame="https://www.youtube.com/watch?v=-8ue3FaVypg"]Toyota FT-1 & Supra Mk4 Turbo together first time ever! #bangladesh - YouTube[/ame]

[gymratter]

no manual, but at least we're getting a DCT. also the production car is said to be unveiled this fall.

https://www.supramkv.com/threads/toy...l-of-2018.815/

- By the way, is MT prepared for the next SUPRA?

Mr. Tada: At the moment, it is not; it is just a dual clutch transmission. I think whether it is not fun if MT is a large power car like the next SUPRA. Raising the torque of the engine will make the shift feel worse. If so, it is very doubtful whether MT specification is necessary. However, I think that there is a meaning of MT adoption if it is said that even general people will taste the sequential type transmission installed in the racing car.

By the way, it is said that the official announcement of the [production] version I'm looking forward to will be about fall of 2018. Anyway, I am looking forward to the debut of the next SUPRA!

[mazeroni]

So a manual could work with a 4 cylinder? Such as one already found in the BMW lineup.

hint hint hint hint

hint hint hint hint

hint hint hint hint

I know it's not happening. Sad!