Honda D Series Forum banner
1 - 4 of 4 Posts

·
Registered
Joined
·
7,236 Posts
so basically you want to rebuild a factory honda R18 style setup? Maybe I have been sipping some juice tonight, but kinda seems the path you want.

Honda did an awesome job on the R18, and a small supercharger on one would kinda seem to fit your goals


Toyota did a similar trick with the 2nd gen prius 1.5 motors. de-compresses at idle and low rpm for ease of motion. Yeah, it lacks power, but the engine barely uses any fuel idling even cold in comparison to a normal setup
 

·
Registered
Joined
·
7,236 Posts
heat soak in the head?

What are you on about?
 

·
Registered
Joined
·
7,236 Posts
A small turbo is going to flow much easier than a complete stock R18 exhaust.

R18 fits nicely into the EG/EK chassis with minimal effort
 

·
Registered
Joined
·
7,236 Posts
well, here is something worth checking into. The d16y8 valvetrain can be swapped into the vtec d17 head that normally has 3 valve low, 4valve high mode with a switch around 2500 rpms.


What about trying to put the D17 vtec valvetrain into a d16y8 head, setting valve lash on the one valve so it drags the valve open ever so slightly, then you simply enable the vtec-e to 4 valve mode for extra power? That way, you only have 1 of 4 valves in each cylinder slightly open, and the turbo can make up the compression/velocity loss. With proepr oil (0w-40, or 20w-50) you will always have enough pressure to ensure the pin comes out, and the d17 valvetrain is built around low pressure activation. I bet you could get it to operate as little as 1800 rpm or so.


Just spit balling here!

EDIT btw, the d17 cams all have a cam slot that can potentially accept a distributor, plus since you would be stuck using the d17 camgear, you now have a location for a cam sensor directly. No more relying on 20+ year old oem distributors for the proepr 4-1 wheel! You do loose the ramp, but gain precise cylinder position.
 
1 - 4 of 4 Posts
Top