[ricerocket112]

TSX K24 head and K20 head what is the difference between the two.

Hey all I need some insite to this K24/K20 head spec's. The problem I am having is I am using a complete TSX K24 engine and I want to do 10,5:1 forged pistons what I have been told is that there is no pistons made for the TSX K24 engine, there is only pistons for K24 engine with K20 head combo..This is very strange for me I thought that K24 and K20 head are the same and that you don't have to worrie about pistons because they are the same. What do I have to do to make the K24 head compatiable with the spec's of the K24/K20 frankenstien swap.



Please help




Thanks




Kevin.

 

[ricerocket112]

bump for info.

 

[jon v]

nothing, I don't know who gave you that info but it's wrong.

the TSX head is identical to teh Type-s and R head excpet for teh shape of the intake ports...

the OEM bore sizes between the 2.0 and the 2.4 are different though... I think the 2.0 is 86 and the 2.4 is 87 or 89 or something...

You lookin to boost?

 

[kevinoneill]

bump good info.

quicky: OEM stands for?

the R and S heads are identical?

So the 2.0 valve openings are smaller than the 2.4's but still flows better due to shaping etc... interesting. Or i'm assuming it does...?

 

[jon v]

bump good info.

quicky: OEM stands for?

the R and S heads are identical?

So the 2.0 valve openings are smaller than the 2.4's but still flows better due to shaping etc... interesting. Or i'm assuming it does...?

OEM= original Engine management, basically it is used to say stock or as it came from the factory.

The head itself I believe are identical, different cams and springs and stuff, but the heads themselfs are teh same.

The valve openings I believe are teh same, it is just the shape of the intake ports that are different. The 2.0 head is basically a ported TSX head, I think the smaller ports on the TSX head will help to make more torque but if you are spinning the motor higher than the stock TSX redline you may be taking away ferom some of that high end flow...

most of that is just speculation on my part, as far the effects but they deffinetly are a little different. there is a good picture on here somewhere I will try and find it...

 

[jon v]

there you go...

 

[ricerocket112]

Jon V thanks alot bud really appreciate it. I thought that there was no difference between the two. Yes I am planning on boosting going TSX K24 type R intake cam and typeS exhaust cam and built top and bottom and JRSC @ 10psi. should be off the hook when it is done. :wow:

 

[Oside Jimc]

Jon V thanks alot bud really appreciate it. I thought that there was no difference between the two. Yes I am planning on boosting going TSX K24 type R intake cam and typeS exhaust cam and built top and bottom and JRSC @ 10psi. should be off the hook when it is done. :wow:

Why aren't you using your K20a2 head, was it damaged? Also you should get the IPS S/C cams, they'd really help your monster breathe.

 

[ricerocket112]

Why aren't you using your K20a2 head, was it damaged? Also you should get the IPS S/C cams, they'd really help your monster breathe.

Oside Jimc thanks for the response, Yes I totaly FUBAR my head to when the motor blew that is why I bought a complete TSX motor. What are IPS S/C cam I have not heard of them before, I know the Crower FI cams suck are those cams out yet.


Thanks


Kevin.

 

[Oside Jimc]

Oside Jimc thanks for the response, Yes I totaly FUBAR my head to when the motor blew that is why I bought a complete TSX motor. What are IPS S/C cam I have not heard of them before, I know the Crower FI cams suck are those cams out yet.


Thanks


Kevin.

The IPS cams are in my car, they made 343.4whp. Testing is complete and release is just around the corner, contact Edo and get them on order, there will be a line and first come, first served. But I think you want to get a K20a2 head for your swap, even if it means the cams have to wait. Let me know how things go, I'm buying a K24 for Edo to build for me, can't wait.

 

[ricerocket112]

The IPS cams are in my car, they made 343.4whp. Testing is complete and release is just around the corner, contact Edo and get them on order, there will be a line and first come, first served. But I think you want to get a K20a2 head for your swap, even if it means the cams have to wait. Let me know how things go, I'm buying a K24 for Edo to build for me, can't wait.

Thanks Oside Jimc for the info. Question why would I want the K20a2 head when the TSX and K20a2 head are the same. What is your setup on your car? WOW :wow: 343whp that must be awesome


Kevin

 

[Oside Jimc]

Thanks Oside Jimc for the info. Question why would I want the K20a2 head when the TSX and K20a2 head are the same. What is your setup on your car? WOW :wow: 343whp that must be awesome


Kevin

They are not the same, TSX ports are smaller for more low end torque. Check the pics.

And yes, 343whp is just awesome to drive.

 

[ricerocket112]

They are not the same, TSX ports are smaller for more low end torque. Check the pics.

And yes, 343whp is just awesome to drive.

Thanks Oside Jimc... I know the ports are different what I am concerned about is the combustion chamber are they the same. The reason I am worried is I am building up a TSX motor so I am using pistons for the K24/K20 head swap and I don't want any problems with the pistons touching the K24 head.. I am sure the pistons will work.



Thanks



Kevin.

 

[Oside Jimc]

Thanks Oside Jimc... I know the ports are different what I am concerned about is the combustion chamber are they the same. The reason I am worried is I am building up a TSX motor so I am using pistons for the K24/K20 head swap and I don't want any problems with the pistons touching the K24 head.. I am sure the pistons will work.

Thanks

Kevin.

Sorry, can't help there. You REALLY need to contact an experienced engine builder so there isn't a disaster.

 

[suprfast]

OEM= original Engine management, basically it is used to say stock or as it came from the factory.

sorry to chime in and burst the bubble, it stands for
original equipment manufacturer

 

[jon v]

Jon V thanks alot bud really appreciate it. I thought that there was no difference between the two. Yes I am planning on boosting going TSX K24 type R intake cam and typeS exhaust cam and built top and bottom and JRSC @ 10psi. should be off the hook when it is done. :wow:

I think the OEM TSX exhasut cam is the most aggresive OEM exhasut cam out there...

sorry to chime in and burst the bubble, it stands for
original equipment manufacturer

my bad...
at least I was close

 

[02sik24a2]

I think the OEM TSX exhasut cam is the most aggresive OEM exhasut cam out there...



my bad...
at least I was close

need high lift and duration to clear the larger cylinder. great for all motor as well

 

[Oside Jimc]

need high lift and duration to clear the larger cylinder. great for all motor as well

Still has too much overlap for optimum performance with a boosted motor

 

[wrhperformance]

Still has too much overlap for optimum performance with a boosted motor

Hi ,

That's right the heads are the same but the port's are better on the type s / type r head . From my experience building Honda engine I can tell you it's ok to use the pistons that you want , but the TSX ex cam are a better for your combo. I can tell you that is no worry on piston to head clearance. I build an engine with brian crower experimental cams that are made for all motor they are extrimlly hi lift cams and I use 14:5 to1 comp r/t pistons on my engine and I can tell you is a hell out of power and torque , but be ware of the over rev or miss shifting because you goin to have an extreem combo and you need a good valve spring or you can have your engine blowing in pices. That happend to my race RSX with one of my drivers and is not a good call when some body call you and tell hey the car pull like hell but after I miss 3rd I don't have power any more !!! And on that race he was pulling a Z06 Corvette and a M3 BMW ........ To bad to end that way......

 

[signalpuke]

wrhperformance,

This thread is 6 years old. At the time there was not a lot of information on the K-series. No one was really using the K24 motor, and the RBC manifold was not in use. Most people sought the K20A and PRC manifolds at the time.

Oside Jimc was doing a lot of R&D with supercharged and nitrous, and he built some great motors. He has a great thread in the Forced Induction section that goes over the things that he learned.