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Scion FR-S / Toyota 86 GT86 General Forum The place to start for the Scion FR-S / Toyota 86 | GT86


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Old 12-22-2012, 06:14 PM   #15
MY13FRS
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I think the FRS is over rated in power. Sure doesnt feel like 200HP. I think maybe 160-170HP. But nothing a future FI kit can't fix.
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Old 12-22-2012, 06:24 PM   #16
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My car trapped 94 MPH on a 80 degree day bone stock. It only ran a 15.26 though, 'cause launching a torqueless car on street tires is a fine line...(:
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Old 12-22-2012, 06:29 PM   #17
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i thought the frs realistically had 197 bhp they just rounded up as it sounded nicer
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Old 12-22-2012, 06:44 PM   #18
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Quote:
Originally Posted by GTB/ZR-1 View Post
Sorry guys--the proof is in the trap speeds--no matter if it's a Vette, VW, Veyron etc.

Let's then use a car w/ a somewhat similar power/weight ratio--the e36 M3. Power/weight = ~12.9
Twins power/weight= ~13.7

The M3 typically traps ~99 w/ slightly better power/weight, but ~5-6mph?

Are BMWs underrated as well?

I have other examples...

We were sold a bag of HP goods! lol
I don't know what kind of math you're using. Make sure you use weight of the vehicle with the driver and fluids. This is the equation.

hp = weight ([trapspeed/234]^3)

Using this equation, with 2900 as the weight and 92mph as the trap speed...you get 176whp. Which seems about on par with what 200hp should be. About 12% drivetrain loss.
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Old 12-22-2012, 06:49 PM   #19
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i've seen that the they do 163- 168 in 3rd gear pulls and 173-178 in 4th gear pulls!
maybe it has to do with the gear used in the dyno. hope that helps
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Old 12-22-2012, 07:04 PM   #20
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You are calculating HP based on trap speed?!? Keep the flame suit on wise guy.
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Old 12-22-2012, 07:10 PM   #21
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You are calculating HP based on trap speed?!? Keep the flame suit on wise guy.
Yeah, what self-respecting drag racer would ever try to calculate HP from trap speed... Ridiculous!

Not sure if serious... Lol

Industrial, that's closer to a crank # you're getting.

And, BTW guys, I've probably been going down the strip longer than some of you have walked the planet, and have had several HP cars over those years.
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Old 12-22-2012, 07:19 PM   #22
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Yeah, what self-respecting drag racer would ever try to calculate HP from trap speed... Ridiculous!

Not sure if serious... Lol

Industrial, that's closer to a crank # you're getting.

And, BTW guys, I've probably been going down the strip longer than some of you have walked the planet, and have had several HP cars over those years.
Nope. That's power to the ground as the car sits when it makes the pass. I don't care what you say about your drag racing experience. Your math is fox news weak. You should be able to take a car, make 10 passes, take the average trap speed and plug it into that equation and get a number. That number should match what the car will put up on a properly calibrated dyno with a 1:1 gear ratio. I'm not making this shit up. It's just math.

Here is a reference since we're on the topic of dynos vs. trap speeds vs. butt dynos.
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Old 12-22-2012, 07:32 PM   #23
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Some people put too much weight in numbers on a piece of paper. On paper, there is nothing particularly impressive about the car. Yet it has received accolades from just about every automotive magazine, website and talking head in the world. Sometimes, it is about more than a few numbers. It is about how all the pieces come together as a whole.

If you feel cheated out of a few horsepower then trade it in on next years model. I am sure the next tune will find a couple more ponies for you.
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Old 12-22-2012, 07:38 PM   #24
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Quote:
Originally Posted by GTB/ZR-1 View Post
Yeah, what self-respecting drag racer would ever try to calculate HP from trap speed... Ridiculous!

Not sure if serious... Lol

Industrial, that's closer to a crank # you're getting.

And, BTW guys, I've probably been going down the strip longer than some of you have walked the planet, and have had several HP cars over those years.
Yes Im serious math racer... we can measure power with dynos; no need to bloat results with variables.
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Old 12-22-2012, 07:45 PM   #25
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Again, I'm a big fan of the car, not knocking it whatsoever, and will be modding my car for Solo competition. I'm just bringing up the point that the car is slightly overrated.

And industrial, don't care what you think abt me & my math. It does not make 200bhp. Not saying it's not close, just not quite there.

And I'm far from an internet numbers kind of guy. That makes me laugh! Some people that know me may find that accusation quite humorous as well, if they come across this thread.

Not looking to battle here, people!
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Old 12-22-2012, 08:18 PM   #26
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You have no justified claim for your assertion, you dont race in a vacuum, variables have fogged your judgement.
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Old 12-22-2012, 08:34 PM   #27
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I think its quite accurate.
Several manufacturers underrate their cars. Too bad this car isn't.

It sure felt a lot less powerful going from my 184hp mini to the 200hp GT86.


On paper torgue BRZ: 151 lb ft
On paper torgue MCS: 177 lb ft
(not sure if they used the overboost feature some Minis have 192 lb ft)

Yeah, I know. Turbo, but when comparing paper specs one would not think the difference in torque would be that extreme.

Im impressed with the twins, but not by their engine. That torque drop at the end is not impressive either. Its hard to utilize all the power, because the real sweetspot is only between 6000-7000 RPM. The good power is between 5000-7500rpm.
TRD clutch pack LSD with 4.3 final drive (if I remember correctly) + ECU flash with more power and 8000RPM redline would probably make it a lot more versatile in my opinion. On the small tracks that is. Drag is not my thing, nor what the car is suited for in my opinion.

Im hoping a hybrid performance version will fix the power if they are planning something else than the NA route. Toyota does not seem to have plans of turbo..
Im not really saying that 200hp are not enough, im talking about the available power. In EU, this is basically the NA RWD who are competing against turboed FWD hatches. Most of the hatches have way more power, not only in terms of HP, but also in terms of available power and torque. All of which are more fuel efficient too (atleast when comparing power vs fuel efficiency) I think the twins will have to step up their game at one point in the future. Hopefully some option with good torque, better fuel efficiency and a wider powerband.

[ame="http://www.youtube.com/watch?v=4kzqDE69Cas"]1/4 Mile Drag Race: Focus ST, M135i, Golf GTI Edition, 35 Astra OPC and Mégane RS - YouTube[/ame]

On that surface, I doubt the twins would beat the Focus ST.
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Old 12-22-2012, 08:39 PM   #28
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All I know is my celica gts says 180 HP but did 163stock. fwd no lsd. 370z claims 332 got 277 stock rwd with lsd. FRS 167 rwd with lsd. All on Mustang dyno . I just wonder if lsd saps more power.

Last edited by clayrush; 12-22-2012 at 08:59 PM.
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