So....if you wanted a K20...

Also the k20 block has stronger and forged pistons, rods, better bearings, basically everything is greatly improved except formthe discplacement. I think the k24 gave cast pistons and thinner rods, lower comp, different bearings.

Darksider203 wrote: I think its because the k20 is usually sold as a complete and expensive motor swap, especially the japanese varient, the k24 comes in many econo cars, this may be a shot in the dark but the k series might have sleeves at 2.0 liters, i dont think k24 have sleeves. Thats why you hear some guys making 400+ horsepower on stock blocks turbo. Any honda guys please correct me if im wrong

Not sure about the sleeves, but you're correct about why they're expensive . The good K20 blocks are on the sportier cars (RSX-S, Civic Si, etc) vs the k24 blocks which can be found in the less sporty passenger cars (CR-V, Accord, Element). The motor I am building right now uses a k20z3 head out of the 06 Civic Si and a k24 block out of a CR-V with TSX pistons (higher CR than the other k24's)

I think I know where this is going, and I wholeheartedly approve.

Sounds great kaze, i could see a good 220 hp with proper bolt ons, not bad at all for something that didnt cost u an ton of money, and reliable too.. Plus you have alot of room to upgrade.

I would go with this setup if i were you chandlergti

Thats basicaly re creating a us spec k20 with 400 more cc.

An ecu will make it come alive and beastly

K-pro is on the to do list. Also forgot to mention this is going to mate up to an Audi a4 transaxle :D

KazeSpec wrote: . Also forgot to mention this is going to mate up to an Audi a4 transaxle :D

thats interesting.. what is the purpose?

sobe_death wrote: Don't forget that you can convert the 5-speed transmissions to 6 speed for about $200 in factory parts. Might save you a little cash in the end. http://www.crvownersclub.com/forums/22-under-hood-performance/461-6-speed-crv-elements.html

interesting, right when i was selling my type-s, the new thing to do for the big power guys was to swap to the 5-speed for longer gears and fewer shifts in the 1/4, iirc it was good for two or three tenths.

KazeSpec wrote: K-pro is on the to do list. Also forgot to mention this is going to mate up to an Audi a4 transaxle :D

if you're going to be using k-pro, the K20a2 from the 02-04 rsx-s is the only one that has complete functionality with k-pro, the later (K20z?) ones required using an s2k ecu and harness adapter and even then not everything worked right.

also, the k20a2 stock valvetrain* is supposedly good for 8900 rpm, but the stock intake manifold doesn't let it make much past 8600, which is why the hondata reflash is limited there. with a better intake and valvetrain upgrades, the stock bottom end is ok to nearly 9500.

• the 02 valvetrain had a single valvespring setup that apparently isn't as good as the dual-spring setup on the 03-04 engines (same as in the S2000), so if you're going to make a screamer from an 02, you might at least swap to the 03-04 springs, or go aftermarket.

Excellent info gents, thanks!

Strizzo wrote:

KazeSpec wrote: K-pro is on the to do list. Also forgot to mention this is going to mate up to an Audi a4 transaxle :D

* the 02 valvetrain had a single valvespring setup that apparently isn't as good as the dual-spring setup on the 03-04 engines (same as in the S2000), so if you're going to make a screamer from an 02, you might at least swap to the 03-04 springs, or go aftermarket.

FWIW, the S2000 only had single valvesprings (in all three motors), and as far as I have heard, the only thing limiting the valvetrain speed is the '00-03 retainers cracking on mechanical overrev. The '04-up retainers are pretty much bulletproof.

Wait a second, did I read "Audi Transaxle" ? Is the back of the car getting a Haldex, or IS this thing the rear end?

yes more info on the kswap with audi transaxle? I might do some junkyard searching for some stuff tomorrow.

Darksider203 wrote:

KazeSpec wrote: . Also forgot to mention this is going to mate up to an Audi a4 transaxle :D

thats interesting.. what is the purpose?

Purpose is to run the K20/24 hybrid in a 1969 Lotus Europa. Should be quite fast with how light the car is.

Strizzo wrote:

KazeSpec wrote: K-pro is on the to do list. Also forgot to mention this is going to mate up to an Audi a4 transaxle :D

if you're going to be using k-pro, the K20a2 from the 02-04 rsx-s is the only one that has complete functionality with k-pro, the later (K20z?) ones required using an s2k ecu and harness adapter and even then not everything worked right. also, the k20a2 stock valvetrain* is supposedly good for 8900 rpm, but the stock intake manifold doesn't let it make much past 8600, which is why the hondata reflash is limited there. with a better intake and valvetrain upgrades, the stock bottom end is ok to nearly 9500. * the 02 valvetrain had a single valvespring setup that apparently isn't as good as the dual-spring setup on the 03-04 engines (same as in the S2000), so if you're going to make a screamer from an 02, you might at least swap to the 03-04 springs, or go aftermarket.

All you have to do is transfer the sensors from the k20a2 and the engine harness to whatever motor you will be using. Then it'll work with K-Pro just fine. I'm not running the stock k20a2 manifold, I'm using the RBC manifold. My old K20a2 motor had stg2 cams, upgraded valvetrain, and full bolt-ons.

kaze

can you tell me where you sourced the k20a to audi transaxle adaptor kit from ?? im about to drop a k20a into a banks 62s europa and rather than get bespoke stuff machined up id much prefer to buy a done job - any advice would be so much appreciated

regards

carl