if the car is going to be driven on the street. 2.3.

no question about it.

 

Because 400lb-ft on pump gas and 500+lb-ft on race gas isn't enough

2.0L all the way. Its proven to work.

 

It seems to be a trend on here to throw a big turbo on the 2.0, no matter what the car will be used for. The majority of these top-end cars seem to end up for sale in the classified section within a few months of putting the big turbo on. Just an observation...


Unless you're predominately using the car on the drag strip, why not spool the turbo even earlier for more torque = more fun on the street...

 

Listen to the garbage these 2.0 litre supporters are spitting out. "proven to work"... lol... since when is mitsu stroker not proven, lol!

And 400 ft/lbs on pump??? Uhm... an Evo Green makes that easy! I think this guy wants a step up in torque from an Evo Green LOL.

 

You let me know when the torque graph of a Green "table tops" like this. There is a little more to this than just the peak number.

 

I've ridden in the 2nd fastest MPH FPGreen car (SPIN2GST) and in David Buschur's car.

THERE IS NO COMPARISON! I don't care what you say, THERE IS NO COMPARISON!

 

And what would happen to torque on a graph like above if it was 2.3?

The horespower curve would be similar, so torque would be flat, there would just be a lot more torque.

Let me ask you SloRice... what stroked Evo's have you driven yourself?

 

Tough choice, but if you arent doing tons of driving around and are going to be doing long highway runs, 2.0L...

 

I'm making the very same decision and I think it's a no brainer...these cars with the 35R make more useable power the further you spin them. The 2.0 and higher rev limit is the way to go for a drag racing setup.

the 2.3 is nice for low rpm but when you're drag racing it's not that helpful since you'll never be under 5500 RPM or so if you spin it to at least 8k.

 

Strokers don't make less power than 2 litres... it is generally accepted they make the same peak horespower. As for area under the curve, well the stroker will make it earlier, I'd say as much as 700 rpm earlier. However yes you can ring out a 2 litre to 9/10k... but seriously, when in the world would you ever want to do that on the street? The only reason people spin their motors to 10k is to stay in 4th gear through the traps drag racing.

To all those people singing the praises of the 2 litre, have you ever driven a stroked Evo?

How can you think more usable power is a power band from 5k - 8.5k versus 4k - 7.5k, both have same peak power, and the stroker has more torque.

 

I never said that torque with a stroker would be greater than, less than or equal to that of a 2L.

I can guess that a stroker would make more power at the same boost level (30psi) because according to my air flow calculations, the turbo can still support a 2.3L at 8000RPM. Put some race gas in that stroker and turn the boost up like you would with a 2L and that 35R will quickly run out of breath and you will not make the power the 2L will. You will probably make more torque with the 2.3L, but it will not make the hp as the turbo will be out of breath.

I can also guess based on air flow calculations I did a couple years ago, which BTW are spot on with the 2L graph I posted above that the 2.3L will gain about 30-50ft-lbs over the 2L on pump gas.

I have never personally driven a stroked Evo. But I can do one better...my 2.5L STI. Yes, I know what you are talking about when it comes to the driveability of the 2.5L compared to the 2L. On my car, it just goes when I'm sitting at 2500RPM. On my buddies Evo, it goes too but you have to wind it out a little. So I know the differences.

Here is what the OP asked for...

2.0L all the way.

 

Admitted to not driving a stroked Evo!

Rest my case!

 

With a 35R he will spend a lot more time waiting for the turbo to spool ON-THE-HIGHWAY with a 2.0 than a 2.3 or 2.4. With any turbo, you get a 3500-4500 rpm power band.

Why not have the torque and have it sooner

A 35R on a 2.3 w/ TB or IM and built head can easily pull through 8500 RPM.

The 2.3 will make the same power but will have more of it longer. Do a search and look at some dyno graphs, you'll see.

BTW, spin past 8,000 rpm and all sorts of funny things start happening to the clutch and transmission.

On your recommendation, I'm seeing this guy get the 2.0, reving it to 10K trying to catch the ZO6. He'll catch him alright but with schrapnel from his engine bay.

IMHO do the 2.3 from beginning to end w/ a reputable tuner.

 

No sense having a conversation with close-minded people. I'm out of this thread.


OP - do yourself a favor and give David a call and ask what he recommends. He knows what he's doing more than anyone else on this forum.

 

a couple of thoughts... from a roll lag isn't a problem with the HTA 35R and 2.0l as long as you're ~ 4500 or higher and further more you can always brake boost it to make 20psi+ before it's go time and I'm speaking from experience.

my car makes more power the higher I spin it and when I shift at 8k or so I land around 5500-6k and the power increases towards redline again. I'd like to be able to spin to ~ 9k so I land in peak power...that's how you get down the track faster.