Engine vs. Engine: STi vs Evo

91TB78 · Feb 28, 2003

Ok the obvious match-up.

In the blue corner the very cool (and thank you SOA) 2.5L boxer engine. "No replacement for displacement!!!!!" 8) The potential for more power is obviously greater than the 2.0L with the extra 500cc's.

In the red corner is the tried and true 2.0L I4 4G63 from Mitsu. Nope..no extra displacement, but a cast iron block where the Subaru has an aluminum head and block.

So, what does everyone think potential wise? True we are getting an extra .5L bump and an already 300hp/300trq, but will the iron block of the Evo better the STi b/c the 4G63 has some tough internals to nearly 400hp???

What's the consensus??

TL-racer/STi-driver · Feb 28, 2003

Check out the crazy guy with his EVO at this site. You have to question the sanity of this guy and the temperature of the exhaust manifold.

http://www.tyresmoke.net/gallery/album49

Look at the video labelled Red Hot

alfredob1 · Feb 28, 2003

DAAAMMMMMMMNNNNNN!

Even the guy filming it stepped behind the hood.

91TB78 · Feb 28, 2003

Pretty cool vid.

So, what's everyone think about the two engines??

CloNeGTS · Feb 28, 2003

Well, we obviously know little about this new engine and whether many/most/some/none of the parts are from past STis or current STis in other markets. Obviously the pistons are again new......

I suppose the only comparison we can make at this time is the STi 7 engine vs the 4G, and then throw in a factor for the extra displacement of the new engine.

I'd think most of the characteristics of this new engine will be similar to past STis....or at least the 2.0 JDM STi.

91TB78 · Feb 28, 2003

Coming with radio?

I'm talking more in terms of reliability under boost, accepting mods, etc.

CloNeGTS · Mar 1, 2003

If we can't compare it to the older STi engines, or even the JDM current engine, I don't think we can do that. :wink:

91TB78 · Mar 1, 2003

:-? OK..Theoretically then. You have engine A that has a tad bit more displacement but is solid aluminum construction. Then you have engine B that has similar engine internals as engine A but it has a cast iron block and a decrease of 500ccs. Which should be better at accepting more hp with higher boost...SAFELY?

C'mon there has to be some tuners that know about turboed cars..

chawklit · Mar 1, 2003

evo engine wins. period.

CloNeGTS · Mar 2, 2003

Some Pricing Thoughts

Now that's so great justification for an answer right there folks!

Good work man! :roll:

Would you like to enlighten us?

chawklit · Mar 2, 2003

Well,... I've been doing a lot of research on evolutionm.net and so far I've ascertained that the Evo engine would "beat the crap out of the STi" engine because "Subaru sucks and Mitsubishi rules" and "[that little smiley face holding his fist up in a rock on sign and banging his head]".
As you can see my credentials are bullet-proof and my findings should stop this thread dead in its tracks.
Now, I don't want any flaming because there is no way you can argue against me.

91TB78 · Mar 3, 2003

:lol: HAHA

CloNeGTS · Mar 3, 2003

Wow.....that answers that then....can't argue with research! :lol:

Soopafly · Mar 3, 2003

For SCOOBYSAURUSREX

Just so long as you all are making some headway here.

RaX · Mar 4, 2003

good one... :roll: :roll:

Limeydriver · Mar 4, 2003

The Evo motor is very strong. In the UK there are loads of 300hp + Evo's. The US Sti motor looks like it will be good too. The Evo can be made a real torque monster upwards of 400lb is not unheard of. There is a Warrender 380hp bored Evo V11 upgrade that takes the 4g63 motor to a 2.2. 1/4 mile 11secs. 0 -60 3.8 seconds

91TB78 · Mar 4, 2003

Limey, thanks!!!

Yeah that's what I figured. Even with added boost increased horsepower isn't always the case, right? My thoughts are possibly that the Evo gearbox will need replacing after tons of mods b/c more torque means more breaking?

O4STi · Mar 11, 2003

ok first of all i have been doing some research and i think the evo8 runs 17psi at 4000rpm and 19psi at 6000rpm, second of all my friend just got a brand new black evo8 and i gotta say it has pretty good power even tho it hasnt been broken in yet, he has 400 miles right now and he is done breaking in at 800 miles. also the handeling of the evo8 just grips to the road and in 5th gear 2500 rpms he punched it on a strait road and in a few secod it hit 100mph and all u can hear is the loud turbine spooling and you can feel yourself sinking in.

i also have to add 3/10/03, my friend dynoed his evo8 even tho it hasnt been broken in yet and it was reallly loud and it produced 284hp stock

to get with the problem here i believe that the STi is faster because with our bigger engine we will be able to boost our turbo and produce more hp.

in our crew we have 2003 black evo8, (coming 8th in line) 2004 WRX STi, 2002 black WRX, 1994 black Supra TT, black audi S4, 2000 2.5RS Turbo

the kids with the cars below(me) just turned 16. if the evo8 is ever crashed, then he will get a brand new bmw m3
(the 2003 black evo8, (coming 8th in line) 2004 WRX STi, 2002 black WRX)

TO CONCLUDE THIS, THE STI WILL BEAT THE EVO BECAUSE WITH A BOOST CONTROLLER, AND THE LARGER ENGINE OF THE STI AND LOWER PSI, YOU CAN LITERALLY BOOST THE TURBO HIGHER AND PRODUCE MUCH MORE HP THAN THE EVO8

but while driving around in the evo8, popping the clutch at 3000rpm allowed the turbo to kick on at 2800rpms

CloNeGTS · Mar 11, 2003

Uh.......what?

Were you asleep when you wrote that? :wink:

I gathered nothing from that other than the dyno numbers, and Shiv from Vishnu Performance has claimed the dyno power is no where near that.

BHODGES3 · Mar 11, 2003

Heh, good to see that Yittish is not as dead of a language as they would lead you to believe!

Engine vs. Engine: STi vs Evo

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