sick!!

 

Nice

 

I saw this yesterday and am much happier with this episode then the other recent 9th gen he did.

 

It's quite impressive.
However, I seem to recall that it's not a simple (or inexpensive) conversion to put a K20 head on the K24 block. Maybe I'm mistaken since the owner stated that the bottom end is from an earlier Acura TSX.

 

I think the swap all said and done is almost $10k

k20z3 head swap is the same as the HPD pro-seal motor, he did spend close to 10k on this set up...

but, this set up can be done for around $2000 labor if you can provide all the parts.

 

I think the swap all said and done is almost $10k

 

I love whenever a popular youtube channel like TST does a Honda there is always a tidal wave of 16 year olds saying the power is a lie and the car is shit.

 

So what's the details on this thing? You don't just swap a K20 head on a 2.4 motor and get 260whp do you? I imagine there is at the minimum some sort of taller cams?

 

should be stock head w/ cams, "real" header and stock bottom end. I was talking to the guy who built that motor when i was over at his shop the past week.

I think the swap all said and done is almost $10k

he said ~6500-7500 for a turn key swap/build depending on what else you want with the head swap.

 

I definitely prefer the feel of a high performance all motor over boosted.

 

Just to clear something up, the car in the video actually has the bottom end from a 2009 TSX which is the K24Z3 block and not the bottom end from a 2008 TSX which is the K24A2 block. The build will work on our stock K24Z7 bottom ends and they are essentially the same as the K24Z3.

This was brought up on instagram by the engine builder as many people were commenting and asking about the bottom end and if our stock bottom end could be used for the build.

 

who built the engine. i would love to follow them

 

https://www.instagram.com/k20z3allmotor/

 

another NO DETAILS ABOUT HEAD SWAP thread.

 

10k in mods to get the same output as a base $27k WRX.... This is why I'm not going crazy on mods.

 

you can have everything done for around $4500~5000

 

i didn't realize wrx had 260 wheel hp.

 

Stock 2015-16 WRX is about 220 wheel hp on the dyno. still slower and heavier and not a Honda. Even the 15-16 STi has 245ish wheel hp. still slower (with a turbo and larger displacement).

 

this is 280whp all motor fb6 redline at 8700rpm

 

this is 300whp all motor fb6 redline at 8700rpm (6:20)

 

So nobody knows much of anything about what is required on a K24 build to pull this 260whp? And other than higher RPM limit, is there any reason to swap the K20 head on? From everything I read it seems the K24 head is virtually identical other than the 2 stage valve springs on the K20.

 

The K20Z3 head has VTEC on the exhaust and intake cams, and traditional exhaust ports ie: one per cylinder. Our K24Z7 head only has VTEC on the intake cam, and a merged collector for an exhaust port. The single exhaust port works good for a turbo setup because the turbo can be placed near the engine and with the large volume from the K24 displacement it can spool the turbo quickly. From a naturally aspirated perspective, the exhaust side of our engine is somewhat limiting. With the K20 head swap you get better flow all around, and the K20 intake manifold (RBC) is better suited for high rpm operation with its shorter runners.

In my opinion the swap the owner of the video has is ideal. 260 WHP and 190 TQ is plenty to motivate a Civic. I personally wouldn't want any more power to the front wheels, and I'd take N/A power over boost any day.

 

You guys are forgetting that he blew his stock engine from boost or something, I couldn't make out what he said. Not sure where $10k is coming from but on the owners Instagram he stated $8k. That includes the sourced 09' TSX block and Drag Cartel cams, which aren't necessary. Discount it even more if you have a Flashpro and RBC. So like Team3d said, it could be as cheap as $2k if you have all the parts and maybe $3.5k if you just want a bare bones swap (RSX oil pump and real header is required).

 

I'm looking at more of a budget build myself for a basic DD car. I'm getting rid of my 15 si. Was going to get a high mile TSX for cheap, yank the engine and do a full refresh with new bearings, seals, rings, etc. Then add stage 2 cams and valve train, Type-s oil pump, IM, header, and exhaust. All I'm wondering is if there is enough gain to be had by swapping the K24a2 head for a K20. And I don't think there is. It's worth what, 10hp? I don't care about a 8500rpm limit since the car will rarely ever see that RPM. Way more concerned with power under the curve.

 

I've been pondering a similar build to like this, and will probably do so in the very near future. I'll take NA power any day over forced inducted.

 

Why are you getting rid of the Si? Want something with an auto?

 

Cause I'm one of those idiots that goes through vehicles like underwear. lol. It's just a boring DD that I mile out driving to work. Instead of leaving 20k tied up in the SI, I can have a more practical TSX, with more enjoyable power band, and more options. For like 6k. Seems like a no brainer. If I keep the Civic I'll end up blowing a bunch of money doing a CT-e kit.

 

The lack of a true aftermarket is the reason. This car gets little love as a whole from the aftermarket segment. It's sad because it's a great car, and the most underrated Si ever built.

 

It'll take time for others to notice and appreciate 9th gens. Look at the Supra. They were a hard sell when they came out, big sticker didn't help but nobody appreciated them till way later, like 10 years. The movie helped big time too. Now if Jesse had said "K24Z7 no shit!"....things would be different, lol.

 

I like N/A power but 9thgens were made to get boosted.

 

i think this is little bias towards civic owners... i personally meet various 9thgencivic.com forum members with various income brackets & ages...

watch this video....

you will be very happy with this set up, smooth, no loss of low end power, no raspy sound, the rpm revs like a type-r and it only cost you less than $1500

 

Saw this the other day . . Been emailing the guy back and forth who built it trying to get more info on the engine and what kind of " warranty " they are putting behind their work if I am going to fork out almost 10K. So far no response