[brandtson]

Hey everyone, I've been looking around for an answer to this question but no one seems to know much about the k24's since they are so new.

I have a 2003 5 speed 4 cylinder accord lx, and obviously it needs a bit more pep. What I want to do is swap a k24 from the tsx into my accord. But the engines are rare as anything to find and probably would cost alot. But if it's the same block, then what parts build the power and higher redline. I understand that it has a drive by wire system, so I could probably use my throttle body or a throttle body from a k20a. I'm thinking it's probably the cams and the intake manifold and exhaust that is making all that power. Also, I have looked over the k24 frankenstein route, but from what I've heard those are really unstable especially at high rpms and this car needs to be a daily driver. So pretty much I want to get the power from a tsx into my accord.

Thanks for the help, ahead of time.

 

[Andynolife]

sept. 04's Honda Tuning can answer ur question .... u get anything u wanna kno with every K engines ~ they take it out into peices with every Kseries ~
heads or diff. intake/exhaust mainfold is diff. exhaust is diff (many accorders buy TSX's exhausts) ECU, cam, too much .. ~~ that it wont make the good gain with the money u spend on this frankenstein ~ better jsust go for a turbo or sthin ... ~
it's like RSX as Type-S or Mini CopperS is not just basically a supercharged Copper
too much truble .. ~~

 

[Noel]

Sorry, but what sort of engine do you have in place at the moment? I'm under the impression that you're saying that it's also a K series engine? If so, what is the engine number.

 

[Andynolife]

Sorry, but what sort of engine do you have in place at the moment? I'm under the impression that you're saying that it's also a K series engine? If so, what is the engine number.

NOel ... i think he got he K24A4 160hp in his Accord LX ....

 

[brandtson]

NOel ... i think he got he K24A4 160hp in his Accord LX ....

yea thats right, i don't know the engine code exactly, i believe it's the same thing in the cr-v as well. it's got 160hp and i think 161 ft/lb's of torque, 6700 rpm red line i think.

I'm wondering if pretty much everything is different (ie: bore/stroke measurements, internals)? or if i could just do a full head swap, or just take the parts i need (cams, intake manifold, exhaust, etc).

Thanks again

 

[Andynolife]

exhaust will be easiler to get .. ~ but that wont help much ~
a TSX K24A2's head will give u some signicicant gain .. ~~ but it's very very hard to get ~

 

[brandtson]

a TSX K24A2's head will give u some signicicant gain .. ~~ but it's very very hard to get ~

is the head what makes the 40 extra horses and let's it rev higher, or is it different internals too?

that's what I meant to ask

 

[Andynolife]

the head wont give u 40 hp .. there r way more different parts ... ~
the allumium intake minfold and the 3 rocker iVTEC parts ~

 

[Guest]

i was contemplating this same thing for the last few days.... i know we share the same block as tsx and elements

you say the intake/exhaust mani's are dif? thats something i had no idea of...
i was thinking pistons to bump more compression up a little, anyone know if they are forged or anything? tsx has true vtec unlike our accord that have the fuel economy minded vtec i believe.... so you couldnt just use the cams... you would have to do a complete headswap which is something i would def look into....

hondajunkyards here i come!

 

[Andynolife]

yeah ... my pnt is a TSX head will give u back the most of the power diff.
but there will be a roughly 15hp come from other parts ~

 

[brandtson]

you would have to do a complete headswap which is something i would def look into....

hondajunkyards here i come!

excellent someone with the same dilemma as me. there is a guy on honda-tech that is selling full tsx swaps (6-spd tranny, engine, ecu, etc) pm me if you want the link

but yea i want to know if doing a headswap would make my k24 identical to a k24 on a tsx also if it would be reliable. i know the k24's with the k20 heads are about as reliable as b20/vtec's or ls/vtecs.

there is also a guy on accordingly done that is doing a full tsx engine and tranny swap into his accord. it's in an older chassis though.

keep me posted though if you find any info/write-ups on how to get the 40 extra horses (or the bulk of it) without doing a full engine swap.

 

[brandtson]

yeah ... my pnt is a TSX head will give u back the most of the power diff.
but there will be a roughly 15hp come from other parts ~

yea i'd probably get an aftermarket exhaust, cams, upgraded valvesprings, and bored out throttle body and intake manifold while the head is off.

 

[Noel]

Andy has basically answered most of the queries. :thumbsup:

Don't forget, you'd need the TSX OEM ECU as well as this controls the mapping which is one of the big contributing factors from the different K24s. As for reliability, it's quite safe to say if it's done properly, it should drive and perform like a factory car.

Your best bet would be to get a front cut, that way you can use the drive shafts, CV joints etc that you might require. Not saying you might need it but you never know what other "bits and pieces" you might need to complete the transplant properly.

 

[brandtson]

Your best bet would be to get a front cut

are you talking about doing a full engine swap or just the head swap?

 

[Guest]

Andy has basically answered most of the queries. :thumbsup:

Don't forget, you'd need the TSX OEM ECU as well as this controls the mapping which is one of the big contributing factors from the different K24s. As for reliability, it's quite safe to say if it's done properly, it should drive and perform like a factory car.

Your best bet would be to get a front cut, that way you can use the drive shafts, CV joints etc that you might require. Not saying you might need it but you never know what other "bits and pieces" you might need to complete the transplant properly.

does hondata not have anything out for tsx's yet? wierd.... well maybe by the time that i get enought money to do this they will, yea and the realiablitly issue... no biggy just make sure to do it right the first time....

as for aftermarket shiot done while the head is off.... of course! lol

 

[Andynolife]

are you talking about doing a full engine swap or just the head swap?

in that case with a full front end u can get wutever u need to build ur K24A4+2 :fro:
with that much money .. ~~ y not just trade in the car for a TSX or just go for a turbo or supercharger .. ~~ save time and money and the risk of doin things wrong ~ too much turble .. ~~
as i said before .. ~~ u never kno wut exactly the differences between the 2 engines ... and so far we pnt out so many differences ~
my frd part out his Copper engine and compare with another part out CooperS's engine .. ~~ the internal is totally diff. ~

 

[brandtson]

my frd part out his Copper engine and compare with another part out CooperS's engine .. ~~ the internal is totally diff. ~

yea but dude you're comparing bmw to honda.

honda's b18 and b16 cams are interchangeable (and the jdm and usdm spec b18's can interchange all internals), also pretty much all f-block engines have interchangeable parts (with the exception of the s2000). also civics share alot of parts with integras. and even weirder is that you can even use brake assemblies from a car as different as nsx's and accords on certain accords. so you can't just rule out that they are nothing alike. especially if their chassis are alot alike and they even share the same rear sway bars.

and again i don't want to do a full engine swap unless completely necessary (i already know it's possible to do an engine swap), i don't have the money for a full front clip. i just want the head and the ecu if possible. what i'm trying to do is save some money and work that way I won't have to get new shafts, find out where to put the tranny mounts and have alot more to worry about for roughly 40 horses.

 

[Andynolife]

ok ... first K-series r not like B series .. ~~ the cams r not interchangable .. ~~ wheather it's from K20A to K24 or K24A2 to K24A4 ~ u cant judge the K-series with the old one .. ~ they r so much different .. brand new generation that is totally diff. like the B series and Fs ~ and brake system is totally diff story with the engine .. ~~ which brake is less complicate ~ and well ... let me use the K20A4 and K20A2 on RSXs as exsample .. that might be more clear ~
i think some aftermarket parts and a K24A2 TSX head will just be wut u need ~

 

[Noel]

If you want to make this attempt with a tight budget. Just go out and get what you "believe" you'd need and work your way from there. But you need to remember one thing. The minute you open your block up, you're literally opening up a can of worms no matter how you look at it.

You will need to be prepared to shell out more money to get more parts if needed or replace whatever you might find not compatible. In saying that, I don't really see a point in doing this conversion unless you're aiming for that ultimate sleeper look. Even then, the power increase isn't going to be mind blowing. Especially for a daily driver, I don't think you'd want the car immobilize at some workshop or garage should the need arise for more components.

Stick with what Andy has to say, he's offered a whole lot of information and concerns that should be noted. If getting a front cut is not your best option, perhaps you should consider "safe forced induction" ala supercharging for that matter of power gain.

And that "40 horses" that you keep making an emphasis is crank power, not at the wheels to begin with. Unfortunately no matter how true it is, you won't see that magic number with simply doing this specific transplant.

 

[Guest]

i think one of the biggest advantages of us doing a headswap is the fact that we gain 2 lobes on exhaust side vtec, trust me that is one hell of a difference!
why do this? 1) its different and 2) i dont really like many FI hondas....simply because... it defeats the point of having that wonderful vtec!

i do believe that buying a whole front clip or full swap is the best route... and with demand coming now the prices should start falling.. good for us!