GR86 Is the GR86 Downrated or quoted lower figures?

AndyRC said:
Is 0-60 that important 🤔 I’m past traffic light drag racing , more interested in mid range performance 30/50 , 30/60 etc these days and how quickly it will scrub off speed at legal limits.
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Not at all I’m using a different gauge. People class certain cars as fast or slow etc on different stuff my base line was my old mk2 focus st wasn’t the fastest in the world but felt quick enough so I like to compare figures with that car to decide whether I think il be happy with performance because I’m too impatient to wait for the release haha.
 
0-60 is irrelevant. I have a bike so often do faster runs to 60 than most. I bought the GR86 for how it will feel through corners and now it has enough torque to be great at corner exit too. I want a car I can learn again and get to know.
 
AndyRC said:
Is 0-60 that important 🤔 I’m past traffic light drag racing , more interested in mid range performance 30/50 , 30/60 etc these days and how quickly it will scrub off speed at legal limits.
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Completely agree with this, the GR86 is not a car you would drag race without forced induction and some weight reductions anyway, but 0-60 is irrelevant in everyday driving, unless you're one of those drivers that likes to launch their car between traffic lights.

In-gear performance is a lot more important to me as that and the handling characteristics actually give you the sense of speed when driving a car.

Either way, all 0-60 tests for the GR86 indicate it's been underrated and the times it pulls are actually in high 5.xx seconds.
 
beorg said:
The GR86 dynos at 210-215 hp at the wheels, stock GT86 does around 165-170 hp, so that's around a 25% real increase in power. Cars typically dyno around 15% less at the wheels, so the real crankshaft horsepower for the GR86 is likely closer to 250
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I wonder if anyone in the UK has a dyno run to share. A US one with 215 at the wheels is with a carbon filter and using 91 Ron fuel.
 
Triggaaar said:
I wonder if anyone in the UK has a dyno run to share. A US one with 215 at the wheels is with a carbon filter and using 91 Ron fuel.
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I've been meaning to do mine but its low on the priority list right now. I imagine it should be very similar, whilst we don't have the charcoal 'diaper' in the airbox we have a GPF which I would have thought is a little more resistive than the secondary CAT.

American fuel octane is measured differently to everyone (of course it is), they don't use RON.

87 is regular, 91 is premium, 93 is super, which equates to 95, 97 and 99RON over here.
 
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My Ducati Diavel would do 0-60 in 2.5s when 'unleashed'. I launched it once on an empty, dead straight road and nearly blacked out as my sinuses drained, my eyeballs shot backwards into their sockets and I felt giddy. Had to quickly pull over and take a moment. I've also experienced that 'tunnel vision' effect whilst travelling at 172mph on a Hayabusa test ride down the A91 from Cupar. Suffice to say, I'm more than happy with the GR86's performance now I'm of a certain age... 🧓
 
ZN8 said:
I've been meaning to do mine but its low on the priority list right now.
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I suggest you revisit your priorities, for the sake of your community

ZN8 said:
American fuel octane is measured differently to everyone (of course it is), they don't use RON.

87 is regular, 91 is premium, 93 is super, which equates to 95, 97 and 99RON over here.
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:ROFLMAO:
Thanks, I had no idea it was different
 
There was someone on FB that did a run. Will try to find it and edit this post

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Triggaaar said:
Thanks - that 187 is well down against the reported average of about 215 at the wheels. Something is amiss somewhere.
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Yet corrected it comes out at 234.3bhp and 183.5lb/ft which is extremely close the published values.
 
ZN8 said:
Yet corrected it comes out at 234.3bhp and 183.5lb/ft which is extremely close the published values.
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It seems to be about the only dyno that is close to the published values

It's possible that the rolling road operators are all incompetent, but disappointing if that's the case.

 
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Triggaaar said:
It seems to be about the only dyno that is close to the published values

It's possible that the rolling road operators are all incompetent, but disappointing if that's the case.

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Are they all reporting at the wheel figures? Might be some compensation going on by default (don't know if this is like the 0.3s they always knock off the 0-60 time for 'one-foot rollout').

They dyno pic from FB above looks very accurate - there is a ton of drivetrain drag on these cars (try dipping the clutch downhill and it's like you've taken a brake off).
 
kalniel said:
Are they all reporting at the wheel figures?
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They dynos are only capable of calculating the power at the wheels. Then, depending on 2/4wd etc, an estimate of power at the crank is made. If the 86 is making 215 at the wheels (and a lot of cars are reporting that), then the engine is going to be about 250 bhp.

Maybe most of the rolling roads are just complete crap, and giving fake results.
 
Triggaaar said:
They dynos are only capable of calculating the power at the wheels. Then, depending on 2/4wd etc, an estimate of power at the crank is made. If the 86 is making 215 at the wheels (and a lot of cars are reporting that), then the engine is going to be about 250 bhp.

Maybe most of the rolling roads are just complete crap, and giving fake results.
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Yep, understand they're measuring power at the wheel, but question was whether this was what they're reporting, or is it like 0-60 times in the US where they aren't reporting the measured 0-60, but instead a 0-60 with a -0.3 adjustment and calling it '0-60'.
 
leosayer said:
I'm more than happy with the power of the GR86.

The power to weight ratio is the same as my old Porsche 964 C2.
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I can identify with this - our touring bike kits 60mph in around 2.5 seconds, we will never ever be able to afford a car that can do that, so we bought a GR86. Power and 0-60 is not our priority.
 
Michael Knight said:
Its bad for business if you yield low dyno hp.
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Maybe that's the case in the US? If you go to a dyno, it should be to get accurate results. Otherwise, what's the point? Might as well just make it up. On which note:

I had my GR86 Dyno'd and it's the most powerful stock GR86 ever tested, producing 246 bhp at the wheels (estimated 283 bhp at the crank).

Am I amazing or what!
 
kalniel said:
Yep, understand they're measuring power at the wheel, but question was whether this was what they're reporting
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Oh ok, sorry I misunderstood. They're reporting an average of about 215 at the wheels, and then assuming the engine is producing about 250.

Either the car is producing more than spec'd (perhaps because Toyota don't want it seeming better than their 2.0 Supra) or Dyno's are faking results in the hope that more people choose them for their fake 'aren't I great' certificates.
 
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