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Icecreamtruk · 02-08-2021, 03:46 PM

I think people are trying to argue for the sake of arguing here. In an "apples to apples" comparison, you should compare what a stock block + bolt-ons and possible cams or whatever other things you can do to add power to a k24 vs a bolt-on plus tune on the FA20, on the same gas (no gas pump on the k24 then corn juice on the fa20, duh).

I see the comments already about how this is not apples to apples, but it is, you know why? Because there isnt anything else you can do to the FA20 to actually increase its power, without opening the block. So it should compare a basic but close to maxed out stock block (unopened) fa20 vs the same k24, the difference will be between 40-60whp for sure, easy, any day.

I honestly dont believe this is a great swap for a street car, except for those that want the engine for other reasons (rev higher, sound, honda fanboy, easy replacement motors for boost junkies, etc..). I believe a boosted fa20 suits that easier. I believe this is a swap for the track minded people. The weight difference, a bit over 100lbs, will be even higher when you compare a NA k24 to a boosted fa20 (yes piping has weight, intercoolers dont float, turbines are heavy). Less weight of the nose (in front of the front axle) is huge in handling.

For that same reason, I also believe some people arent looking at the graph right, you dont compare power to power at any given rpm, or peak numbers to peak numbers, you compare area under the curve for the gearing you are running. With the stock transmission, that means looking at the last 2000 rpms on the rev band. Take the posted above graph, draw two lines between max rpm and 2000rpm less than that for both curves, and compare the area under there. While 40hp is only around a 20%, there will probably more than a 20% difference between those areas.

So I believe there is a place for this swap for sure, people calling it pointless are not looking at the whole picture, or any picture besides what their case use.

PS: no, im not doing a kswap, I was already in the process of swapping an LS when this popped. Had it been available back then I might have done this instead.

02-08-2021, 03:46 PM	#121
Icecreamtruk Senior Member Join Date: Dec 2015 Drives: Track preped NA FRS Location: Montreal, Canada Posts: 987 Thanks: 1,056 Thanked 681 Times in 405 Posts Mentioned: 12 Post(s)	I think people are trying to argue for the sake of arguing here. In an "apples to apples" comparison, you should compare what a stock block + bolt-ons and possible cams or whatever other things you can do to add power to a k24 vs a bolt-on plus tune on the FA20, on the same gas (no gas pump on the k24 then corn juice on the fa20, duh). I see the comments already about how this is not apples to apples, but it is, you know why? Because there isnt anything else you can do to the FA20 to actually increase its power, without opening the block. So it should compare a basic but close to maxed out stock block (unopened) fa20 vs the same k24, the difference will be between 40-60whp for sure, easy, any day. I honestly dont believe this is a great swap for a street car, except for those that want the engine for other reasons (rev higher, sound, honda fanboy, easy replacement motors for boost junkies, etc..). I believe a boosted fa20 suits that easier. I believe this is a swap for the track minded people. The weight difference, a bit over 100lbs, will be even higher when you compare a NA k24 to a boosted fa20 (yes piping has weight, intercoolers dont float, turbines are heavy). Less weight of the nose (in front of the front axle) is huge in handling. For that same reason, I also believe some people arent looking at the graph right, you dont compare power to power at any given rpm, or peak numbers to peak numbers, you compare area under the curve for the gearing you are running. With the stock transmission, that means looking at the last 2000 rpms on the rev band. Take the posted above graph, draw two lines between max rpm and 2000rpm less than that for both curves, and compare the area under there. While 40hp is only around a 20%, there will probably more than a 20% difference between those areas. So I believe there is a place for this swap for sure, people calling it pointless are not looking at the whole picture, or any picture besides what their case use. PS: no, im not doing a kswap, I was already in the process of swapping an LS when this popped. Had it been available back then I might have done this instead.