2.3L vs 2.4L

[JET]

The displacement advantage in a 2.4 is actually from the bigger bore (since they use the same crank). A bigger bore will affect HP more than torque, where the stroke affects torque more than HP. So, theoretically, the 2.4 will make slightly more HP and basically the same torque as a 2.3l.

[rst95eclipse]

The displacement advantage in a 2.4 is actually from the bigger bore (since they use the same crank). A bigger bore will affect HP more than torque, where the stroke affects torque more than HP. So, theoretically, the 2.4 will make slightly more HP and basically the same torque as a 2.3l.
Don't you have to bore it out when you're doing a 2.3? I believe that a 2.3's bore is 88mm. Maybe you have it switched around. More torque than HP.

I usually use a set of ARP headstuds. :D
Well there's po-folk like me that doesn't have the cheese to get my hands on that hardware.

[niterydr]

I usually use a set of ARP headstuds. :D
LMAO!!!
Thats awesome.

[niterydr]

Don't you have to bore it out when you're doing a 2.3? I believe that a 2.3's bore is 88mm. Maybe you have it switched around. More torque than HP.


Well there's po-folk like me that doesn't have the cheese to get my hands on that hardware.
No, its a 88mm stroke for a 4g63.
It is a 100mm stroke for a 4g64.
The bore is 85mm on the 4g63.
The bore is 86.5mm on the 4g64. (thanks shane for the correction!)

The srt-4 stuff, just for fun:
101mm stroke w/ 87mm bore. They call it a "2.4" that revs to a blistering 6000rpm (factory redline).

Bore size=horsepower.
Stroke is usually related to reving capiblities, powerband, and torque.
The 4g64 crank in the 4g63 isn't worth it in my honest opinion. Just buy the correct block to begin with.

[Super Bleeder!!]

Don't you have to bore it out when you're doing a 2.3? I believe that a 2.3's bore is 88mm. Maybe you have it switched around. More torque than HP.

what you are saying doesnt' make ANY sense. a 2.3 is composed of a standard run of the mill 4g63 block that comes in any dsm, and a 100mm crank out of the 4g64/g4cs motors. the stock bore on the 4g63 is 85mm, and that is the end of that. boring it out to 88mm would leave the sleeves MIGHTY thin, which isn't in your best interests.

for future reference the 2.4 blocks have a stock bore of 86.5mm.

[rst95eclipse]

Alright, I don't understand here. So in order to make a 6 bolt 4g63 into a 2.3L, all you have to do is switch the cranks? No boring needed?

[niterydr]

sigh.
You switch the cranks, thats the easy part.
Weisco makes shelf stock pistons for it.
You need to clearance the mains and the block for the crank to rotate.
It is not that "easy" if you have to ask about it, in all honesty.

[sleepydsm]

Could someone put a built 2.4L in a completely stock car with no ill effects?

[niterydr]

No. The larger motor will consume more fuel. Your turbocharger will also hate life.

[Super Bleeder!!]

there is a kid down here with a built 2.4L in a fwd 2g with the friggin t25 on it, haha. BOOST AT IDLE FTW!!