INSIDE OF K20- cam gear,cam shaft,retainers,valves/springs,rocker arm (Merged)

[leviathan18]

i guess there are more models but everyone is trying to get the Si with reason... i cant here in my country we dont have that car so i want UPGRADE parts for my incoming ex coupe also i think there are a lot of person buying other models (non si) because the long wait times for the si

[skittleslegend]

What all are you trying to do with your EX? Do you just want a little bit of performance or do you want to have a sleeper street car? If you want a little extra performance, you can have a custom exhaust made with a universal muffler and some 2.5" piping. A muffler shop can do this for you for about $125-$225 total (depending on the muffler). Fujita has a Cold Air Intake and a Short Ram Intake I believe. You wont find a header because the exhaust manifold is integrated into the head for emissions purposes, making it impossible for a company to build a header. If I'm not mistaken, this was a problem on the 7th gen Civic's too. Other than that, lightweight wheels, a carbon fiber hood and carbon trunk (if you're getting a coupe, the same carbon hoods and trunk for the Si will work), lowering the car with springs and dampers, sway bars and anything made for the Si that doesn't have to do with the engine will work. Relocate the battery to the trunk, to shift weight around. If you don't want to do that and you can't afford a carbon hood, get a lightweight battery. These are all things that you can do to increase the performance of your car, not to mention make it look damn good

[leviathan18]

i wanted to take the r18 near or a little bit higher the SI Hp output...

if the manifold is integrated to the head, that means is impossible to change? so r18 wont have a turbo??? perhaps a supercharger?

i want a nice ride... that is all i had a galant v6 so im afraid im going to suffer the step down that is why i wanted an SI but here is impossible to get so my only solution is an EX coupe with mods

anyway thanks for the ideas you gave me i guess the first thing to do is change the rimsa and wheel and suspensions then i can see into exhaust and intake

[skittleslegend]

The R18 can be turbo'd...one of the cars at SEMA was turbo'd. Everybody thought it was an Si but it's an EX. I can't find the specific link, but if you see it, it's a burnt orange color with black tinted headlights, a big intercooler in front and a bodykit.

Look into a K20aR from a JDM Type-R or the K20a2/K24a2 hybrid. Those would give you the most power and flexibility for future mods and they're very reasonable as far as cost goes. By the time you buy a turbo and get the labor, you could've had a stronger, much more reliable engine than an F/I motor. Like I said, the best turbo'd or supercharged engines are the best N/A engines. You can have the biggest and prettiest house in the world, but its only as strong as the foundation it's built upon.

[leviathan18]

the space for the engine is pretty small also i guess i need new engine plus tranny cltuch and ecu i guess the other parts like alternator etc are pretty the same thing the i would need better induction and exhaust you say all this is cheaper than a turbo?

[skittleslegend]

You'd need that anyway. Turbos need to breathe. That's how they make power.

You can find K-series for as low as $600 (Accord K24 block). The K20a2 head can be found for as low as $750. Tranny and ECU don't cost as much as B-series parts and you can find everything here used for a decent price. Shouldn't cost much to have the engine swapped in there at a flat labor rate. You'd need to have custom mounts welded in, but you'll more than likely still come in under the cost of a turbo, install, ECU upgrade, and dyno tuning, provided you can find all of this. You'd be slightly faster than a stock Si if you swapped a stock K20z3 engine (or a K20a2/K24a2 hybrid...and you have more torque too). The EX is a couple hundred pounds lighter than the Si. Carbon Fiber Hood, lightweight battery, carbon trunk (all things that can be swapped in and out pretty easily) and you should be at least a half-second to a full-second faster than the Si in the 1/4. And you get to keep your AC, power steering and full interior. Did I mention it's factory reliable?

[2RotorMotor]

That is pretty good info.... But map is definately the way to go... if can somehow remove the map sensor, then it'll be ideal for the AM intakes and turbos... blowing IC piping sucks with maf sensors.....

[legendman]

I've read this whole thread, and the information is incredible but I wonder if our engine is actually better than the k20z1, or just different?

[skittleslegend]

Originally Posted by legendman

I've read this whole thread, and the information is incredible but I wonder if our engine is actually better than the k20z1, or just different?

No, it's better. The RSX guys will tell you otherwise though. But it's not better because it's just a better engine. It's better because it's an evolved version, which is why it's going in the next Type-R.

Thanks for the read, btw. I'm not done. I've got a little more info to add, I just gotta figure out where I put it. lol.

[radiocontrolhead]

where do u install the oil filter? where is the freeze plugs or plugs that leak?

[si-lazo]

Skittleslegend what type r car is honda/acura going to come out with?

[cmf]

So is the K20 in the Si the same as that in the JDM Accord Euro-R (CL7)?

[skittleslegend]

Originally Posted by si-lazo

Skittleslegend what type r car is honda/acura going to come out with?

If you're talking about the European Type-R, it uses the same K20a2 as the last one....No difference in power.

Originally Posted by cmf

So is the K20 in the Si the same as that in the JDM Accord Euro-R (CL7)?

No, it's more like a hybrid of the TSX and 05-06 RSX-S. While it does share a few components with the rest of the K-series, it's a unique engine to itself. It does, however, use the RBC Manifold from the JDM Accord Euro-R though.

[2RotorMotor]

RBC IM FTW!!! BTW, any word on the specs of our cams? I want to know where it stands against the other cams... I read on k20a.org about the tsx exhaust cam swap, which flows more than the dc5r Ex. Cam...

Quick question about cam swaps... Seeing as our ecu is maf/map, can the computer adjust the difference in fuel required for a cam upgrade??

[G_Vtec]

thanks for the photos. they confirmed my suspicion that US civic and Aus civic has the same airbox and definitely the same filter size

[si_civic]

These pictures just make we wanna get my 2007 now (by jumping to the future)

[Skylinegtr06]

So wait, should I be happy that my engine is just an upgraded tsx engine? Should I educate people about my engine on my si? Or just leave the structure of my engine to their imaginations?

[skittleslegend]

Originally Posted by Skylinegtr06

So wait, should I be happy that my engine is just an upgraded tsx engine? Should I educate people about my engine on my si? Or just leave the structure of my engine to their imaginations?

Uh....well, it could be a K20a1.........


By the way, it's not "just an upgraded TSX engine". Go back and read it again.

[Skylinegtr06]

Ok went back and actually read and im going with my second option

[firmhonda]

I'm just starting to learn my way around when it comes to under the hood and this is gold. gold I say.