Car has a miss/stutter in low revs, and not a ton of power, Dizzy is a non-vtec B8 Dizzy *Bolts right to the Y8 head, but was told this would be fine*, Mechanical timing is dead on, I've replaced the coil/cap/rotor/plugs/wires and the problem remains

My IAT is mounted off a Vac Line also, but I was told this shouldn't cause problems like this, any other input?

I've heard rumors that I have to get an adj. Cam gear because of the setup, and because my head has been milled.

 

im pretty sure when u mix a 1.5 bottom with a 1.6 top u need a adjustable cam gear. because of diff deck height or something. i built a few of them using z6 head and i used a cam.. especially if its decked . it may look close but its usually off 1/2 of a tooth which u cant adjust without the cam

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97grnrs &raquo;</TD></TR><TR><TD CLASS="quote">im pretty sure when u mix a 1.5 bottom with a 1.6 top u need a adjustable cam gear. because of diff deck height or something. i built a few of them using z6 head and i used a cam.. especially if its decked . it may look close but its usually off 1/2 of a tooth which u cant adjust without the cam </TD></TR></TABLE>

Thats what I'm leaning toward, but noone has any definitive proof on this.

 

i did a few and everyone needed it so im sure yours will be the same. 1.5 and 1.6 have diff deck heights

 

i woulda tried to find a b7 block, the b8 has tiny *** pistons and i think i rread in the mini me faq that it wasnt a good choice

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kiddcarbuff &raquo;</TD></TR><TR><TD CLASS="quote">i woulda tried to find a b7 block, the b8 has tiny *** pistons and i think i rread in the mini me faq that it wasnt a good choice</TD></TR></TABLE>

Just so you know, the D15B7 and D15B8 are the exact same block Sans the 8 valve pistons in the D15B8 *Which means you CANNOT do a MiniMe swap on it*

My B8 is one of the early-year oddballs that came with 4 valve pistons, meaning it is 100% identical to B7's

 

i did a mini me on the 8 valve block once and had no clearance problems. the two indents per piston only .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97grnrs &raquo;</TD></TR><TR><TD CLASS="quote">i did a mini me on the 8 valve block once and had no clearance problems. the two indents per piston only . </TD></TR></TABLE>

Thats VERY odd, I've been told there are interferance issues with that.

 

im having timing issues with my mini me

i have a jdm d15 vtec block and d16y8 head
cant seem to get it timed.

also what IM u using?
y8 or the d15b8 one?

so i have to get an adjustable cam gear?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black-Ty [EG6 &raquo;</TD></TR><TR><TD CLASS="quote">]im having timing issues with my mini me

i have a jdm d15 vtec block and d16y8 head
cant seem to get it timed.

also what IM u using?
y8 or the d15b8 one?

so i have to get an adjustable cam gear?</TD></TR></TABLE>

I'm using a D16Y8 Intake Manifold *OEM Honda one, Manual with the IACV*

and I suspect Thats what we may both need.

D15B8 Intake manifold is the size of a lawn mowers, so I threw mine out, I had a B7 as a tested, which also works.

 

damn it lol

i might as well jus use a z6 block then

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black-Ty [EG6 &raquo;</TD></TR><TR><TD CLASS="quote">]damn it lol

i might as well jus use a z6 block then</TD></TR></TABLE>

Definatly not, the B7/B8 block generates a MUCH higher CR than a normal Z6 block does, and a AEM gear is only $60ish shipped off Fleabay.

 

u can find a cheaper cam off ebay. .i forget the name but i used it before. and ya u both need the cam if u want it timed exactly right. anytime u mix 1.5 and 1.6 heads and blocks u need one.

 

am i gonna need to chip my p28 to handle the higher CR?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black-Ty [EG6 &raquo;</TD></TR><TR><TD CLASS="quote">]am i gonna need to chip my p28 to handle the higher CR?</TD></TR></TABLE>

To my understanding if you get it chipped you can make better use out of it, but really just running better fuel is all you need.

 

o aight.

bigger injectors? or what?

 

i think he means goin from 89 octane to higher

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97grnrs &raquo;</TD></TR><TR><TD CLASS="quote">i think he means goin from 89 octane to higher </TD></TR></TABLE>

bingo, higher octane.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97grnrs &raquo;</TD></TR><TR><TD CLASS="quote">i did a mini me on the 8 valve block once and had no clearance problems. the two indents per piston only . </TD></TR></TABLE>

92-93 B8's = pair of valve reliefs
94-95 B8's = 4 valve reliefs cut.

 

i did it using the block with only 2 valve reliefs per piston. it still cleared.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by maxpsi &raquo;</TD></TR><TR><TD CLASS="quote">

92-93 B8's = pair of valve reliefs
94-95 B8's = 4 valve reliefs cut. </TD></TR></TABLE>

Wrong Chief

Here's a picture of my D15B8 block, you got it backwards.



The rumor was that honda used left over pistons from the D15B2 *I think thats what it was* for the earlier models of CX's untill they ran out.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by maxpsi &raquo;</TD></TR><TR><TD CLASS="quote">

92-93 B8's = 4 valve reliefs cut.
94-95 B8's = pair of valve reliefs</TD></TR></TABLE>

Like that?

 

To my understanding

92- (to Some point in 93)B8's = 4 valve reliefs cut.
94-95 B8's = pair of valve reliefs

since I know mine was made mid-year 92, and some people with 93's do and some don't have the 4 valve reliefs.

once they ran out of the 4 valve pistons they started using just 2 valve pistons.


Also all models of 92 civic has wiring for Vtec and 4 wire O2's at the Shock-Tower to the ECU, unlike 93+ which you have to wire all the way to the ECU.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97grnrs &raquo;</TD></TR><TR><TD CLASS="quote">i did it using the block with only 2 valve reliefs per piston. it still cleared. </TD></TR></TABLE>

I still wonder about that...

Was it a Vtec head?

 

yes. i know for a fact because it was my 2nd honda i ever had. 93 cx civic. 8V engine. block had only two indents per piston. i put a z6 head on it. no problems clearing, may have been real close but never hit.