I am planning to add a turbo to my 93' civic D series motor, and I want to lower my compression ratio without doing any bottom end work. I have heard of "head spacers" to lower compression ratio, where do I get these? Any help will be greatly appreciated.

 

thicker head gasket

 

Is there an official name for these thicker head gaskets?

 

what d-serious engine are you talking about?

 

D15B2

 

the compression is low enough alrdy for turbo


just get the car tuned b4 running it hard with the turbo

 

thicker head gasket and some low compression pistons.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99exd16y8 &raquo;</TD></TR><TR><TD CLASS="quote">thicker head gasket and some low compression pistons.</TD></TR></TABLE>

agreed

 

I really don't want to mess with the bottom end, so I'll opt for the thicker head gaskets. But is there a name for these thicker head gaskets, I mean, what do I look for in a online store for example?

 

Just turbo it as it is. It's not even that high.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point3h22lude &raquo;</TD></TR><TR><TD CLASS="quote">I really don't want to mess with the bottom end, so I'll opt for the thicker head gaskets. But is there a name for these thicker head gaskets, I mean, what do I look for in a online store for example?</TD></TR></TABLE>

3 layer or more gasket. it goes by layers. not too sure what the exact name is.

 

Your CR is 9.2:1, just boosted it should be fine, just tune that bitich!

 

wait didnt D15b2s come in 88-91 civics?

 

http://www.alamomotorsports.com\

look em up. they have greddy gaskets as thick as 3mm. that should lower your compression enough to run turbo considering your compression is already kinda low.

 

Thanks, I really appreciate everyone's input.

 

I'm in Germany, and I have a European specs 93 Civic HB with a D15B2 engine.

 

call them and ask if that gasket would fit on your block, i dont see why it wouldnt, the ad said for all d series blocks.

 

if you do get a thicker head gasket, you need to get an adjustable cam gear to compensate for the thickness and keep your motor in time. you should be able to do a search on here for how much to adjust it. but, like most others said, you should be fine with the c/r you have now, just get some colder plugs and have it tuned. you should be fine.