2.3L vs 2.4L

[Goat Blower]

I can't think of anything that would keep you from dropping a 2.4 into a bone stock car. It's a 20% increase in displacement, but like Shane mentioned, the MAS easily can compensate for that much extra air flow. You'd just need bigger injectors if you wanted to run any boost.

[Shane@DBPerformance]

If the 2.4l made more exhaust, then it would make more boost. If the wastegate could regulate it at 11psi on both motors, then it should be fine on both motors. The wastegate on the 2.4l motor would just need to bypass more exhaust. Hell going from a 14B on a 2.0l to a 14B on a 2.4l is probably a smaller jump than when Mitsu went from the 14B on the 2.0l to the T25 on the 2.0l.

[TheBlizzard]

The only thing that would effect the turbos well being is having a way to bleed of the exhaust gases. Yeah I suppose if the wastegate was too small it would creep like hell and run a shit ton of boost and then run lean ect. But if you had the proper boost control ie/wastegate/boost controller you should be just fine.

[niterydr]

11psi is not 11psi.
Ever heard of Shaft speed? Its been proven time and time again, you put to much air behind a tiny turbo, it will spin apart. But I guess, since I"ve only seen this first hand, in person, my experiences aren't valid. The point is the factory flapper (remember this is an oem car) can't handle the boost at higher load. Maybe it could handle it at factory boost, I've never tested it.
Why doesn't someone just swap one in and see how it does?

[TheBlizzard]

Fuck Shane we posted the same info at the same time. Weird.

[TheBlizzard]

11psi is not 11psi.
Ever heard of Shaft speed? Its been proven time and time again, you put to much air behind a tiny turbo, it will spin apart. But I guess, since I"ve only seen this first hand, in person, my experiences aren't valid.
Your right to an extent, shaft speed could come into play. But we aren't talking about running max amount of boost the turbo will run all the time. We are talking about a low steady regulated amount of boost close to stock levels. People that blow small turbos like you are suggesting are usually maxing them out all the time and then yes they are going to go boom boom after awhile.

[niterydr]

Your right to an extent, shaft speed could come into play. But we aren't talking about running max amount of boost the turbo will run all the time. We are talking about a low steady regulated amount of boost close to stock levels. People that blow small turbos like you are suggesting are usually maxing them out all the time and then yes they are going to go boom boom after awhile.
Yes, those people are on dsmstyle :).
Like I have been saying, if the ECU/factory wastegate could control it, yes it could work. I am unsure if the factory could regulate it. It is a very interesting question, and if I had the time or the money to test it, I would. Because, I would like to know. However, I've never done it, and I've never given the okay to one of my customers to try it.
I consider a 46g4 a motor swap that needs "supporting mods", like a mod to begin with.

[TheBlizzard]

Pretty much the reason you never see it is because who the fuck wants to build a race motor that can handle lots of boost and HP and then run a little turbo at stock boost. But we just love arguing about things that "could" happen. So just deal with it.

[niterydr]

Pretty much the reason you never see it is because who the fuck wants to build a race motor that can handle lots of boost and HP and then run a little turbo at stock boost. But we just love arguing about things that "could" happen. So just deal with it.
Yeah I know, probably the thing I love the most on dsmstyle.
Its the only "dsm" board that is all about theory. The other board like this where the "professors" come out of the woodwork is 3si.org.....and that board is way to damm big to get in on alot of the stuff.

[CDeutsch]

I broke in my 2.4 with cams on the stock T25 and stock injectors. I had DSMLink too but it worked fine without adjusting anything.

It ran normal, but it felt like it wasn't making the power it could which was probably due to the huge restriction in the exhaust (aka the T25).

I switched to a PTE 50 trim as soon as the motor proved it would hold together. :)