Which engine do you think is better? Which would you have preferred to see in the evo x? Which do you think has more potential. Let the battle begin!!!!!!!!!!!!!!!!!!

4B11T > *

We had a good discussion about this before. Maybe you can search around and see if you can dig it up.

Without change there is no growth....

4B11-Turbo

4g63 has proved to be one of the top 4cylinder engines out and has been around for more than a couple decades. IMO it is way too early to begin this debate. The 4b11 has alot to live up to. But in my mind... mitsubishi stepped into this new motor for a good reason.

4g63 has proved to be one of the top 4cylinder engines out and has been around for more than a couple decades. IMO it is way too early to begin this debate. The 4b11 has alot to live up to. But in my mind... mitsubishi stepped into this new motor for a good reason.

Give it a good few years when the engine pops, we will know how much boost it can handle. As of of right now the 4B11T is at least on par with 4g63 in terms of making power from bolt-ons. The only reason the Evo X is slower than the 9 is because of the extra weight. One advantage that 4b11 has is how squared the cylinders arer which means higher rev! Correct me if I am wrong tho.

4B11T > *

We had a good discussion about this before. Maybe you can search around and see if you can dig it up.

:amen: The 4B11T is also making more power per mod than the old 4G63. While the old engine was great, we have Evolved. 4B11T is the future so is dual exit exhaust.

why did they go dual? I don't get it/ I can understand wanting to get away from a ricey look but it cost so much more now. Dual exhaust cost like $1000 to buy because of extra piping and is heavier. It seems more practical and cost effective to have one big pipe instead of 2 smaller 1's. Are there really any advantages to dual exhaust over 1 big single other than aesthetics?

why did they go dual? I don't get it/ I can understand wanting to get away from a ricey look but it cost so much more now. Dual exhaust cost like $1000 to buy because of extra piping and is heavier. It seems more practical and cost effective to have one big pipe instead of 2 smaller 1's. Are there really any advantages to dual exhaust over 1 big single other than aesthetics?

Its mostly for looks. Dual exhaust to the general public means fast.

ok that's what I thought. When I get my X I will be getting single bc its more functional and its cheaper

4g63 has proved to be one of the top 4cylinder engines out and has been around for more than a couple decades. IMO it is way too early to begin this debate. The 4b11 has alot to live up to. But in my mind... mitsubishi stepped into this new motor for a good reason.

:+1:

Give it a good few years when the engine pops, we will know how much boost it can handle. As of of right now the 4B11T is at least on par with 4g63 in terms of making power from bolt-ons. The only reason the Evo X is slower than the 9 is because of the extra weight. One advantage that 4b11 has is how squared the cylinders arer which means higher rev! Correct me if I am wrong tho.

Hopefully another benefit will be some nicely machined heads with slightly more opened up exhaust ports and wider valves. I'm sure cleaning up this head would do wonders for it! And I can't wait to see what a longer duration cam with the MIVEC abilities are going to be putting out too.

4g63 is the past, 4b11t is the future.

I've done things to the 4B11 that I know for a fact would blow-up any 4G63 , after beating on my car for the last 6 months I must say - 4B11 FTMFW !!!!!!!

I've done things to the 4B11 that I know for a fact would blow-up any 4G63 , after beating on my car for the last 6 months I must say - 4B11 FTMFW !!!!!!!
Can we get details on what these things are?

that would be crazy if somebody could put the 4b11 in the evo 8/9. i heard the engine is 27 pounds lighter then the 4g63. dont be surprise to see someone try it

I've done things to the 4B11 that I know for a fact would blow-up any 4G63 , after beating on my car for the last 6 months I must say - 4B11 FTMFW !!!!!!!


Hope you've ran it with a straight T4 @ 27-30 psi on pump gas for a couple of years to make that statement.

I agree with some (it's too early to tell with any degree of accuracy) and disagree with others (4B11 has to be better--or else why would Mitsubishi have changed it). On the second note, first and foremost they did it for production costs. Secondly, the 7-bolts that came in the 95-99 cars were hardly any sort of improvement, so the logic doesn't add up.

I'd say it's WAYYY too early to even begin to debate this.

Well the 4B11T is a semi closed deck vs a fully closed deck on the 4g63. I would like to see a 4b11T over 1000hp on the stock block like the 4g63, but I don't see that happening. Somebody posted on the other site a Sleeved engine. You may be able to get 1000 hp out of this block.

http://www.dieboldautosport.com/images/JRE/EX_SLEEVE.JPG

http://www.dieboldautosport.com/images/JRE/EX_SLEEVE2.JPG

http://forums.evolutionm.net/showthread.php?t=368434&highlight=4b11t+sleeved

i wouldn't say is better yet, anything can happen down to the road.
The 4G63 is an awesome engine and proven, The 4B11 is an awesome engine but not proven yet. The real proof comes from racing . Not from dyno numbers.
So we should wait at least a year racing history. We will know better about a year from now.

Well the 4B11T is a semi closed deck vs a fully closed deck on the 4g63. I would like to see a 4b11T over 1000hp on the stock block like the 4g63, but I don't see that happening. Somebody posted on the other site a Sleeved engine. You may be able to get 1000 hp out of this block.

http://www.dieboldautosport.com/images/JRE/EX_SLEEVE.JPG


So perdy.

:amen: The 4B11T is also making more power per mod than the old 4G63. While the old engine was great, we have Evolved. 4B11T is the future so is dual exhaust.
The evo x does not have dual exhaust. It has a dual outlet muffler. Dual exhaust (or true duel) implies two exhaust manifolds or headers (which rules out L4 motors) two downpipes, two cats, two mufflers, and two outlets. Not just two outlets. For a 4 cylinder to be true duel, you'd have to go to a twin turbo setup, which would require an exhaust manifold like I've never seen on a 4 cylinder.

4g63t> 4b11t as of right now. this is my 3rd evo, and i've had many dsm's my old gsx had 192k on the original motor unopened and i slapped a Super 60 trim on it and all supporting mods and tried to break it, but it lasted me for 3 years after daily driven. when a 4b11 has that many miles and can take the abuse my old 6 bolt did, then ill change my tune. i dont think it'll happen, but hopefully i'm wrong. iron block FTW. but i do love how my MR revs. and i cant wait till a tune can advance the mivec on the cams. here's hoping for full spool by 2500 rpm!

The evo x does not have dual exhaust. It has a dual outlet muffler. Dual exhaust (or true duel) implies two exhaust manifolds or headers (which rules out L4 motors) two downpipes, two cats, two mufflers, and two outlets. Not just two outlets. For a 4 cylinder to be true duel, you'd have to go to a twin turbo setup, which would require an exhaust manifold like I've never seen on a 4 cylinder.
You are correct, what I meant to say was dual exit exhaust. I will edit the post to fix it.

The evo x does not have dual exhaust. It has a dual outlet muffler. Dual exhaust (or true duel) implies two exhaust manifolds or headers (which rules out L4 motors) two downpipes, two cats, two mufflers, and two outlets. Not just two outlets. For a 4 cylinder to be true duel, you'd have to go to a twin turbo setup, which would require an exhaust manifold like I've never seen on a 4 cylinder.
Check out Oldsmobile racing's quad-four. DOHC l4 with each exhaust valve with it's own port. Looks like a mini l8 with two four-port headers on one side into two turbos. It's purdy neat!