p28, y8 head, intake manifold, tranny, and headgasket, a1 pistons, and aftermarket rods that are the same length as his current rods. that will put him at a low 12:1 CR with the sweetest stock ECU and transmission. add bolt ons on top of that and you'rel ooking at a sweet whip.

 

According to this wikipedia article, it may be cheaper to replace the weak internals of the D than to swap for a B.

 

it is cheaper no matter how you do the math

 

And who makes these rods?

 

most rod makers should.

im pretty sure all d15's except the JDM B and the z1 have the same rods. anyone who makes an aftermarket rod advertised as 'Civic 1.5L' or something like that should be the right size.

 

Huh, I just never inquired into that sorta thing.

 

Thanks for the info guys. I definately don't want to start changing out pistons and crap like that. If I have to do that I will just do a full swap! Can anyone tell me.....as for bolt on stuff......I/E/h, ecu, valves, etc........what is going to make the biggest difference? Obviously the mini me would, but how much difference would I/e/h make on my stock engine? Will I notice a difference? This car is going to be a daily driver. I just got rid of my '04 GTP(baby on the way), and bought an suv for the wife. I just want to make this civic at least as fast as the GTP. Is that possible with bolt ons, or am I going to have to swap the valves and or motor?

 

Not sure, you might have a decent head. Supposedly the D16A6 has the best flowing head of Honda's D-series, and I know both of these heads have the same combustion chamber volume (38 cc). Anyone care to confirm? If that's the case you might be able to make a decent set up with just a cam. It would idle rougher than with VTEC though, because you'd have no lower cam profile. Regaurdless, your static compression is 9.28:1. That's pretty low. Changing the headgasket to a 2 layer Y8 (it's 3 layer, removing the middle section makes it 2) would bump that to 9.78. You've got no room to mill the head though. That's about the limit with your stock internals. Really not sure what kind of power that would yield, 110-120 at the wheels at most.

 

you dont want to stray above 10:1 on stock D internals...or at least not stock D rods.

why not change out the internals? its easier than an engine swap.

 

You can make sure it's built right too.

And idk about that 10:1 business. Power seems to be the best indicater of stress.