[Francisco_Fg2]

Okay, so I drive a 2008 Honda civic si coupe. Now I purchase the car in March/2013 with 70k miles (big mistake) and with two previous owners (didn't know this until 3 months of ownership) After 3 months of ownership 2nd and 3rd gear went out, warranty replaced the transmission. Throughout the time I have owned the car I had been hearing a knocking noise coming directly from the motor itself. Now I did maybe 3 claims to try to get them to check the car out get them to replace the motor, motor was swallowing like no tomorrow.

In Nov/2013 motor blows up, the way it blow up I had miss shift into the wrong gear try to pass a yellow light. Take it back to the dealership and the denied the claim because black box had indicated red lines basically says racing when the motor blow up. Which I tired to explain them that I wasn't racing, I had explain them exactly what had happened to the car. They denied the claim. SOL

Car set in the garage for maybe 4 months before I was able to do something with it. Unable to do anything with it, I had lost my job no savings account, only checking account enough money to keep making the car payment. (Really tough times) Sucked not having a car, worst a job to fix and drive the car again. Felt the world was going to end.

Fast forward 4 months after the motor blows up, Uncle picked up the car off my hands and fixed it in his shop as he had the time to get to it. 4 more months get the car back finally after not having the car up and running for about 8-9 months. Drive it for about a month, car start to overheat on its own, keep in my never stepped on it or anything, I was keeping in mind the motor is fresh build. So take it up to my uncles shop again, unable to know what had happened to it, got it back maybe about a month ago. So yes, only drive the car only 2 month out of the whole year of 2014.

After driving it for the month of December, I have came to conclusion that the motor does not have any life anymore. I try stepping on the gas pedal take it up to about 5k rpm and no power whatsoever.

Did some research on what motor to go with, since the k20z3 is expensive I'm looking into the k24a2 $1000 less than the k20z3. Since the car is still currently running I also want to strap a CT supercharger on it before swapping the whole motor.

This is the part I need help in. I do not know what ECU to use also do I need k-pro or flashpro.
What type of motor mounts, also since I'm going to paired it up with the 09 transmission I had replace last year, I know I have to change the flywheel but to which one? Clutch I want the organic exedy stage 1 clutch. Heard and also read a lot about this clutch and it's basically oem. I also want a tune from vit viper. I want to start buying all the parts I need for the build. They aren't going to come in all at once but they will come in slowly but surely.

The numbers I want to achieve are high 300's whp and high 200's ft-Ib's of torque. I know this is do-able. I saw a rsx with a k24a2 with a supercharger strapped to that k24 at my local car meet, unable to get to know the dude cop showed up and send us home, unable to get him to help me with this build. So I thought you guys might be of help.

Any help is greatly appreciated. This build is going to be done so stay tuned for the latest. And the k20z3 I got will be up for sale real cheap as soon as I get the k24a2 supercharged up and running.

If I don't reply is because I'm at work or sleeping lol work all day and have little time to be on the forums.

 

[Em1sivtec781]

Man black box huh never thought they put that in our car , back in the days when flashpro was not available and people swapping k24 with k20z3 head and ran the stock si ecu , but if your going supercharged flashpro is a must

 

[Doeboy211]

Do a k20/24 frank and throw a KW kit on that biatch

 

[Francisco_Fg2]

Man black box huh never thought they put that in our car , back in the days when flashpro was not available and people swapping k24 with k20z3 head and ran the stock si ecu , but if your going supercharged flashpro is a must

Yeah, I was in shock when they told me about the black box. I told myself they are going to try some BS so they won't cover the motor; sure enough they denied the claim. Made some additional research today, and if I just want to do the swap I only need a reflash of the tsx ecumenical and I'm going to go. Now wanting to go with a supercharger than is when I'll need the flashpro. So I'm doing a list of the necessary parts I'm going to need to do the swap and the supercharger upgrade.

 

[Francisco_Fg2]

Do a k20/24 frank and throw a KW kit on that biatch

I thought about the k20/24 frank but I've been do so much research that the k24a2 head is a better version of the k20z3 head, wouldnt make senses for me to swap heads especially since I'm going supercharger, also I have decided to going with the CT-e supercharger, by far better reviews of it.

 

[toxin]

K24A2 + 50 degree VTC gear + I/H/E + tune is a lot of fun on these cars. If you're currently worried about getting the car back on the road (and especially if budget is a concern), then don't worry about 300+ whp -- enjoy having a car again, with the bonus of extra torque from the 2.4L. Just don't forget to swap the 50 degree VTC from your old motor onto the K24A2 while it's out!

 

[Francisco_Fg2]

K24A2 + 50 degree VTC gear + I/H/E + tune is a lot of fun on these cars. If you're currently worried about getting the car back on the road (and especially if budget is a concern), then don't worry about 300+ whp -- enjoy having a car again, with the bonus of extra torque from the 2.4L. Just don't forget to swap the 50 degree VTC from your old motor onto the K24A2 while it's out!

You know what, I never that about all motor k24a2. I going to get that done first, and yeah budget is a concern. What are the parts i'll need to get the most out of it. as far as bolt-on, like with what should i go with?

 

[toxin]

That's just my $0.02, but I run a similar setup, and it's a lot of fun (and plenty fast enough to get me in trouble).

• Intake: Hybrid Racing or Skunk2 (both are 3.5")
• Header: Skunk2 Alpha
• Exhaust: Something ~3" like the Invidia Q300 or Full Race

Then FlashPro + tune.

Stock K24A2's are limited to 25 degrees VTC, which doesn't limit power on a stock setup -- but once you add a race header, etc., the additional VTC angle nets some pretty nice midrange gains.

I'm also pretty sure that all of those parts will work well with a SC if you later decide to go that route. But I think a properly set up N/A K24A2 will surprise you.

 

[allmotosi]

Yea if it was me I would put the money into just buying a stock tsx motor, use the vtc from your k20z3 as said before(this is important), and get a flashpro and intake. I wouldn't be surprised if you could find a stock header to match up to your exhaust if still stock to save money. If not the skunk2 alpha header should work. Definitely research it before you buy.

 

[Francisco_Fg2]

That's just my $0.02, but I run a similar setup, and it's a lot of fun (and plenty fast enough to get me in trouble).

• Intake: Hybrid Racing or Skunk2 (both are 3.5")
• Header: Skunk2 Alpha
• Exhaust: Something ~3" like the Invidia Q300 or Full Race

Then FlashPro + tune.

Stock K24A2's are limited to 25 degrees VTC, which doesn't limit power on a stock setup -- but once you add a race header, etc., the additional VTC angle nets some pretty nice midrange gains.

I'm also pretty sure that all of those parts will work well with a SC if you later decide to go that route. But I think a properly set up N/A K24A2 will surprise you.

Yeah, I have actually put some more thought into it and yes, I'm going all motor first. I'll do a little more research on what bolt-ons I should get for it.

 

[Francisco_Fg2]

Yea if it was me I would put the money into just buying a stock tsx motor, use the vtc from your k20z3 as said before(this is important), and get a flashpro and intake. I wouldn't be surprised if you could find a stock header to match up to your exhaust if still stock to save money. If not the skunk2 alpha header should work. Definitely research it before you buy.

Yeah I'm going to worry about getting the K24A2 first then worry about the parts (Intake,Header,Exhaust etc) once I get all the necessary parts together, I'll be taking pictures of everything so you guys can see, for later reference for someone else in my shoes.

 

[allmotosi]

I'm sure the tsx motor in stock form would be fun to drive. And if you can get a supercharger on there eventually that would be great setup

 

[Francisco_Fg2]

I'm sure the tsx motor in stock form would be fun to drive. And if you can get a supercharger on there eventually that would be great setup

Yeah, I'm going to go with a stock setup with simple bolt-ons and a tune hopefully with Vit viper. Later on the year I'll go with a supercharger from CT-e.

 

[Francisco_Fg2]

Let me though what you guys think. I want to reassure the parts I'm going to get are the best parts for a stock all motor setup.

-HybridRacing CAI 3.5 inch
-OEM RBC Intake Manifold (ported to fit ZDX 70mm TB)
-OEM ZDX Throttle Body
-OEM RDX Fuel Injectors
-P2R Throttle Body Spacer and necessary gaskets

-2008 TSX K24A2
-RBC 50 degree VTC Cam Gear

-DC5 Type-R Flywheel
-Exedy Stage 1 Organic Clutch
-Type-R Final Drive 5.062
-Has-port 3-piece Motor Mounts

-Header Still doing more research
-Full Race Cat Back Exhaust 3-inch
-Flashpro


Anything you guys want to swap around that would work better let me know by Feb, that's when I'm going to start ordering in the parts as of now this is what I want to do. With this setup I would love to be over 200whp and 170wtq.

 

[toxin]

I would actually advise against the Type-R final drive with the 2.4L for a daily driver. You'll be running a transmission designed for the torque of a 2.0L, so it's already plenty short, IMO. On my K24A2 w/ bolt-ons, I can light up first gear at any RPM with my 225/40/18 Continental Extreme DW. I find myself daily driving at 1 gear higher than when I had the 2.0L. I wouldn't want a shorter transmission for DD.

I think you can do without the TB, injectors, spacer, and flywheel, as well.

 

[Francisco_Fg2]

I would actually advise against the Type-R final drive with the 2.4L for a daily driver. You'll be running a transmission designed for the torque of a 2.0L, so it's already plenty short, IMO. On my K24A2 w/ bolt-ons, I can light up first gear at any RPM with my 225/40/18 Continental Extreme DW. I find myself daily driving at 1 gear higher than when I had the 2.0L. I wouldn't want a shorter transmission for DD.

I think you can do without the TB, injectors, spacer, and flywheel, as well.

Makes sense, Final Drive deleted of the list. Bigger TB + 3.5 inch CAI is what I want, so it = more fuel needed to even out A/F ratio, so it requires bigger injectors. More air into the motor = more power to the wheels.

Sense I'm going to be switching out the clutch (need one bad) friends suggest me to go with the DC5 Type-R flywheel as well, they say power is delivered much smoother.

 

[toxin]

Yep, I think that all sounds like a good setup. I just don't think the TB will net much on that setup, but it definitely won't hurt.

 

[Francisco_Fg2]

Yep, I think that all sounds like a good setup. I just don't think the TB will net much on that setup, but it definitely won't hurt.

Passed 64 mm TB won't make a difference but I'm going supercharged after the swap so might as well get it now and not worry about then.

 

[allmotosi]

Yea don't do the zdx throttle body, it will do nothing for you. If you really want to spend money buy the civic type r 64 mm throttle body. That is perfect for our cars. And don't get the injectors either. When you get your supercharger kit it should come with them. And like they said above, just use your stock si trans for now.

 

[Builtfa5ftw]

I thought about the k20/24 frank but I've been do so much research that the k24a2 head is a better version of the k20z3 head, wouldnt make senses for me to swap heads especially since I'm going supercharger, also I have decided to going with the CT-e supercharger, by far better reviews of it.

i dont know where you read this but im currently in the middle of doing a frank swap and everybit of research i have done has said numurous times that the k20z3 head is one of the best stock flowing heads made. but if you have anything you want to talk about id be glad to share any info ive found, and btw if you have seen somewhere where it has been stated with dyno numbers that the k24a2 out flows the k20z3 head.