Opinions-Keep and go FI or sell?

[TorontoNat]

Originally Posted by Cal3000

The power curve is what matters. My evo makes 350ft-lb of tq at 2,500 rpm while my frs makes about 147 ft-lb at the same rpm, which makes the evo actually a lot faster since the power ratio is almost double for the evo at the lower rpm range. Along with the overall higher peak tq, there is a higher hp average along the power curve for the evo.

So we agree.. The only thing that matters is power to weight ratio.

250 tq and 250hp (example numbers) in a 2 ton vehicle is going to be twice as slow as a 250 tq 250 hp in a 1 ton vehicle.. please tell me we can agree on that much.

[Cole]

Originally Posted by TorontoNat

So we agree.. The only thing that matters is power to weight ratio.

250 tq and 250hp (example numbers) in a 2 ton vehicle is going to be twice as slow as a 250 tq 250 hp in a 1 ton vehicle.. please tell me we can agree on that much.

No.

[humfrz]

Originally Posted by TorontoNat

More grip, yes. However with a small increase the gain is offset by the extra weight an AWD system comes with, not to mention the power loss in drivetrain to four wheels instead of two.

Weight still trumps all. A semi truck has 1500+tq driven by 6 wheels usually... Just to show you can have all the grip and torque in the world it means nothing if weight is not factored into the equation.

Apologies for the negative opening line in my last post. Intentions were only to clarify that hp and tq are false metrics without weight factored in regards to speed.

hmmm....... driven by 6 wheels ...... ??

How does that work on Canadian trucks ........

Slow day in Puyallup .......


humfrz

[humfrz]

Originally Posted by Cole

No.

hmmmmm ........ let me check with Newton on that ......

f=ma




humfrz

[Pointmutation]

Originally Posted by fritzburg

Questiono I drop what is effectively $6-8k to FI my ride, with a tune, clutch, all the supporting mods, or do I take that cash and purchase a new toy, like a WRX or Mustang, BMW 235, etc trade in the FRS and make payments on something new?

Those other cars are all cars I considered prior to purchasing my twin. Have you driven them before? Do it if you haven't, you may immediately change your mind once you do.

WRX = AWD grip monster with more power but crappier steering, shifting and handling. It's not bad, but this is comparing it to a twin.

Mustang, straight line accel good but a boat in the turns. Big car but cramped feel inside.

BMW, this will sound weird but it was too perfect (actually I only drove the 228, not the 235). It did everything I wanted it to do when I wanted it and it didn't complain about it either. But something about it gave me a disconnected feel from the road, it was perfect but in a way that felt like controlling a car in a video game. Aside from that, the cost of German car maintenance and upkeep is very high and the cramped over engineered German engine makes it difficult to wrench on you own car compared to Japanese. Been there, done that. Had I never had German before, I probably would've went with the 2er. It's basically the spiritual successor of an E30 3er. IMO, it's perfect right off the lot.

[Cole]

Originally Posted by humfrz

hmmmmm ........ let me check with Newton on that ......

f=ma




humfrz

I mean, the original argument was about 2 different vehicles with entirely different power bands. Are we assuming the exact same power bands for these two vehicles?

[TorontoNat]

Originally Posted by Cole

I mean, the original argument was about 2 different vehicles with entirely different power bands. Are we assuming the exact same power bands for these two vehicles?

As previously stated, yes. same power, different weights. We are far past comparing a twin to a evo lol keep up.

[MRCA1ST]

I say go FI. IMO a boosted twin is one of the best sports cars you can own, especially when operating costs and general functionality are taken into consideration. I keep going back and forth on going FI myself, and I drive 200mi a day...it wouldn't even be a question if it was my weekend/fun car.

[humfrz]

Originally Posted by Cole

I mean, the original argument was about 2 different vehicles with entirely different power bands. Are we assuming the exact same power bands for these two vehicles?

Well, now, I already gave ya'll the formula ......... @TorontoNat ....... take er on in ....... do the math ........




humfrz

[TorontoNat]

Originally Posted by humfrz

Well, now, I already gave ya'll the formula ......... @TorontoNat ....... take er on in ....... do the math ........




humfrz

Should have used newton's second law instead of the semi example. Thank you @humfrz

[paiceyfan]

Been on FI for 18 months, DD'ing it for 4 years now. I wouldn't say FI is better...just different.


For the value you will get for your car in selling it...or lack of value...I would keep it as-is and enjoy it. Get some track days in...you will have a blast, twisty circuit preferably.

[Cal3000]

Originally Posted by TorontoNat

So we agree.. The only thing that matters is power to weight ratio.

250 tq and 250hp (example numbers) in a 2 ton vehicle is going to be twice as slow as a 250 tq 250 hp in a 1 ton vehicle.. please tell me we can agree on that much.

Yes, that makes a difference. The original post was about peak numbers. A theoretically flat 250hp power curve will smoke a 300hp peaky power curve if cars were the same weight. The FA20 engine always seems to make peaky numbers. This is why this car seems "slower" even with good peak dyno numbers.

My car has the same power to weight as a stingray vette, yet I get blown out the water against it.

[DarkSunrise]

Originally Posted by Cal3000

Yes, that makes a difference. The original post was about peak numbers. A theoretically flat 250hp power curve will smoke a 300hp peaky power curve if cars were the same weight. The FA20 engine always seems to make peaky numbers. This is why this car seems "slower" even with good peak dyno numbers.

My car has the same power to weight as a stingray vette, yet I get blown out the water against it.

I think that statement is true of the supercharged FA20's. The turbo ones are a different story though.

Green: stock FR-S with intake
Red: BRZ with Vortech SC @ 9psi
Blue: FR-S with Ptuning GT3076R @ 9psi

[PandaSPUR]

Originally Posted by DarkSunrise

I think that statement is true of the supercharged FA20's. The turbo ones are a different story though.

Green: stock FR-S with intake
Red: BRZ with Vortech SC @ 9psi
Blue: FR-S with Ptuning GT3076R @ 9psi

Am I reading that graph wrong somehow? I never see any of those lines touch 300+ HP
Yep NVM, graph is torque only. need coffee.