Mini-me question
 

OK, so i'm begining to think about doing a minime on my
93 dx hatch d15b7 engine.
I would get a head out of a d16z6

now my questions are,
how much of a power and torque increase does this give you?
is it only once vtec activates?
how does it compare to getting a whole d16z6?

and this is important(as i'm planning turbo later),
will it up the compression in my motor?

thanks.

Re:Mini-me question
 

Low 10.1 c/r (ok to turbo) but need some pretty decent Fuel/spark management

Power would probably bump up 20-25hp with just the head swap.

Jeff

Re:Mini-me question
 

oh, hrmm,
dang, I was hoping the stock c/r would be retained,
cuz both engines have the same c/r

reason is that i'm kind of skimping on the fuel management,
well not totaly, but i'm not doing any hondata, or zdyne.
just smc with some upgraded injectors

Re:Mini-me question
 

hey I'm pimping a D15B7 myself, and I have considered either turbo or mini-me on various occasions. Bottom line, I am waiting until I get out of college and have a backup car. But as far as your mini-me goes, it will raise your CR and it will make a turbo project more "interesting." There are guys here that have done mini-me turbo's, but their fuel management had to be that much better since they were messing with a more unstable setup. Personally, If I'm going to turbo a 10:1 engine, I'd do it with one that came with that compression stock (B18C1, B16A) -- less unusual variables to deal with.

If you want to stick with your civic but don't want one of those big boy engines, shoot for a full D16Z6 and turbo that. You get the VTEC, and the lower compression as a safety net. If you're anything like me and haven't yet homemade turbo'd a car, you may want to start with such a lower compression.

Re:Mini-me question
 

thanks sqwirly,
thats good advice, and I think i'll take it.

might go d15b7vtec(jdm 130hp engine) it has a 9:4 c/r stock I believe, and I know someone running 13's on that with a greddy kit at 8psi and FMU...

although he is on him second motor... hmmmm, hehe.

Re:Mini-me question
 

everything I know I learned from Jeff... tell him it's good advice ;D

Re:Mini-me question
 

heh, roger that