I have recently been working on a couple of upgrades for my D16a6, and had a few Qs. Now before all the flamming starts let me tell you this is my daily driver and has been for the last 5-6 years. I know I've been slow at building this bad boy up, but unforntunately I dont have a huge Income like the one ive seen go into most of the nice builds I've read about in here. I will not be doing a B series anytime soon so dont even waste your time. I first want to get used to rebuilding a stock motor before I attempt to build any type of race engine.
With all that said let me tell you where I'm at. The A6 motor in my hatch was in there when I purchased the car. It has been running strong for years, passed every smog check its be submitted to with out any help(that should tell you how well I maintain it, I live in Cali.).

Recently I found out it has a leaky head gasket. I'm loosing coolant into the oil system, no smoking at all yet. I will be doing a crompression check to have an idea more or less where the motor stands. This set me back a bit because last week I was going to swap in a WEB camshaft I picked up for cheap and a Y8 manifold w/match ported LS throttle body.
Now if my compression is good I will be taking off the head and replacing it with a freshly done spare one I had laying around. I matched ported the Y8 manifold and head, and had it three angle cut and had new valve guides and valve stem seals installed. I will be using a new y8 headgasket and stock type headbolts. I know running this set up it wont be a beast but it will have a little more hp than stock.

My question is has anyone run a similar set up, and if so what type of management did u use? Now before any of you post, keep in mind I cannot a the time spend all the money needed for hondata or dyno time. I would prefer to use something like turboedit or meggasuirt but am not familiar with either and have already researched and read countless info pages on it. Reprogramming and me dont mix. If it gets to be a hassle I'll probably just leave out the tuning. Maybe set the timming at 20*btdc and use an A/F gauge and fuel pressure regulator for fuel. I've read about the PM7 ecu and was wondering if I would benefit any from the fuel maps on it, or should I just keep my PM6?

My complete setup for now, will be Web camshaft: grind 148e/273 , Y8 IM/w LS throttle body, match ported head and IM, same for IM and TB, 4-2-1 DC 1 piece headers, 2.25 piping straight trough Dynomax ultraflo and test pipe, and on the look out for a CAI or short ram, prefferably 3in.
Now for some pics. here is the manifold.



here are the head ports.


going in this piece of junk.


Modified by EF9Si-T at 10:25 PM 10/11/2007


Modified by EF9Si-T at 10:31 PM 10/11/2007

 

Any one have any advice?


Modified by EF9Si-T at 8:47 PM 10/12/2007

 

In my old setup i had pm6 ecu with complete head rebuilt vtec y8 head port and polish and cam to be real feels the same as the stock a6.

 

try using a pg7 ecu of the 88-89 integra works like a charm. other than that get the pm6 ecu chipped to run turboedit. while your running on the pg7 if you get it gives you time to save up and get really tuned. church automotive tunes turboedit and whitfield racing also.

 

I just got back from doing my compression test and it seems like I have serious problems. The verdict is in and the readings are cyl1-95, 2-95, 3-100, 4-120. Now I think that might not be right because it should be 135-185psi. I've read a couple threads on how to properly do it and at first I thought it was low cause I didnt have the throttle open but went back a redid it and from what I learned it didnt make a difference. I also just read one article that mentioned something about removing all the spark plugs and leaving them off the entire test. I actually took one off at a time and put it back as soon as the cylinder had been done testing, dont know if it will make a difference. Can someone confirm the right method or if it does make a diff. I wil try to redo it using a different gauge tomorrow just to make sure its not the problem. One more thing I tested a friends hatch and got 120-115-120-110 from hers. just to get more familiar with it. Oh I can rev the engine quite a bit and see no smoking. It feels pretty strong still and has recently given me about 30mpg, city and highway driving mixed.TIA.

 

if you have a leaky head gasket you need to replace it with a metal one from a z6 or y8. you need to fix that also

 

there shouldnt be more than a 10% change in adjacent cylinders...you did the test right...and your right about having a serious problem...headgasket at the least

 

here is a how too

http://www.sohchonda.com/forum...id=32

 

The link here says also to remove all the spark plugs. Hmm. I'll redo it tomorrow as it started raining. Thanks to all and I'll post updates.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 661rex89si &raquo;</TD></TR><TR><TD CLASS="quote">if you have a leaky head gasket you need to replace it with a metal one from a z6 or y8. you need to fix that also
</TD></TR></TABLE> oh and I had already planned on using a MLS y8 headgasket.

 

did someones grandma with parkinson's disease port that intake manifold?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by STREETWERKZ &raquo;</TD></TR><TR><TD CLASS="quote">did someones grandma with parkinson's disease port that intake manifold? </TD></TR></TABLE>

lmao joe at least he remembered to port match it

 

i'm mostly talking about the TB inlet. holy oval. hardly a 'match'.

 

yeah its pretty ovalish lol

 

emphasis on the ish.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by STREETWERKZ &raquo;</TD></TR><TR><TD CLASS="quote">emphasis on the ish. </TD></TR></TABLE>

im just bored man i just wish you and all my other homies lived closer so i would be bored lol and saying ish stuff.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by STREETWERKZ &raquo;</TD></TR><TR><TD CLASS="quote">i'm mostly talking about the TB inlet. holy oval. hardly a 'match'. </TD></TR></TABLE>
It actually matches pretty good. It looks oval in the picture but its not. If you notice there are those two indentations. I cut those on purpose cause they match notches on the throttle body. By the way, Thanks for stopping by STREETWERKZ . I wanted to ask where I can get one of those black chrome valve covers.

 

you didnt mention it so i am going to....

make sure your car is completly warmed up before you do the compression test. hold the gas pedal down WOT and turn over the motor. watch the compressor needle for FOUR compression cycles then stop. record the reading. i always do each cyl twice.

get a leakdown tester or make one.

GL

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by The_Undertaker &raquo;</TD></TR><TR><TD CLASS="quote">In my old setup i had pm6 ecu with complete head rebuilt vtec y8 head port and polish and cam to be real feels the same as the stock a6.</TD></TR></TABLE>

What did you just say?

If it felt the same as the stock A6, then you have problems. Do you know how to tune anything at all? or use the correct ECU? Or mange to use Vtec with your PM6?

Holy cow.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIred91 &raquo;</TD></TR><TR><TD CLASS="quote">

What did you just say?

If it felt the same as the stock A6, then you have problems. Do you know how to tune anything at all? or use the correct ECU? Or mange to use Vtec with your PM6?

Holy cow.</TD></TR></TABLE> I too have noticed how some of the stuff this guy post doesnt make sense. I just ignore it though. Once youve been a member for a while you know who really has experience.

Anyways thought I would let you guys know I did another compression test today with a different gauge and the results where interesting. These were the results from the first test. Cyl. 1-95, 2-95, 3-100, 4-120. Compared to the ones I just did today, Cyl.1-170, 2-170, 3-170, 4-185. I might use one more gauge to be sure but looks like my butt dyno was right, my motor is still plenty healthy other than the leaky tar paper headgasket. On with the build.

 

z6 headgasket ftw!!!!! after you do you last test to make sure lol.

 

You might get you cam soon.

 

sweet you sure cuz im in need lol