aaronhume

okay so I just got back from pull-a-part and I have a D16A6 camshaft. my question, is will it add any power whatsoever to my D15B2 without doing the MPFI conversion? I did nab the entire intake manifold off it too, but theres no harness for the injectors, and no ECU.


Modified by aaronhume at 11:02 PM 7/28/2005

ssl2k

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aaronhume &raquo;</TD></TR><TR><TD CLASS="quote">okay so I just got back from pull-a-part and I have a D16A6 camshaft that I got for $12. my question, is will it add any power whatsoever to my D15B2 without doing the MPFI conversion? I did nab the entire intake manifold off it too, but theres no harness for the injectors, and no ECU. </TD></TR></TABLE>

you wont gain much until you do the swap

buy a pm6, and a resestor box, and some injector clips and you're set...

aaronhume

actually I am getting a b16 next weekend entire swap I just want to get another hp or something for sunday morningat the track with old engine.... how much hp could it add withouy the mpfi?

ssl2k

you're going to need to do a mpfi swap anyways for the b16...

so you'll need the clips/rest box anyways

mpfi over stock dpfi...20-30hp

dr_latino999

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aaronhume &raquo;</TD></TR><TR><TD CLASS="quote">okay so I just got back from pull-a-part and I have a D16A6 camshaft that I got for $12. my question, is will it add any power whatsoever to my D15B2 without doing the MPFI conversion? I did nab the entire intake manifold off it too, but theres no harness for the injectors, and no ECU. </TD></TR></TABLE>

I have harness clips if you need them. The cam + MPFI will put you ~102hp or the equivalent of a D15B7. With just the cam, maybe 4-5hp but that is just a guess. If you add the cam though, you need to have an adjustable cam gear to keep timing on.

aaronhume

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote">

I have harness clips if you need them. The cam + MPFI will put you ~102hp or the equivalent of a D15B7. With just the cam, maybe 4-5hp but that is just a guess. If you add the cam though, you need to have an adjustable cam gear to keep timing on.</TD></TR></TABLE>

what about the d16 cam gear? that came with it

dr_latino999

Nope, has to be an adjustable cam gear.

aaronhume

how crappy do you think it would run with the timing off?

dr_latino999

1.5 teeth off in the belt (ish) so whatever that is in degrees off.

aaronhume

okay so I installed it today using the old cam pulley, which has the same part number as the new one, but ya I moved it up one tooth in the direction needed (I could tell just by looking at the cams lol. anyway I'll get a couple of pics soon... just gotta find my camera. but yes, it does add power, and it is noticeable.


Modified by aaronhume at 11:00 PM 7/28/2005

civickiller

wait so the a6 cam and the b7 cam are the same ?

dr_latino999

The camshaft in the D16A6 and the D15B7 are different as you can switch out the B7 cam for the A6 to gain power. I was incorrect in earlier stating that<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote">The cam + MPFI will put you ~102hp or the equivalent of a D15B7. </TD></TR></TABLE>
The correct statement should have read:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote">The D15B2 when paired with the MPFI system will then be equivalent to the D15B7 in terms of horsepower at the flywheel. As the D16A6 makes 108WHP, it can be contributed to the camshaft, fuel injection system, and 100cc larger displacement.</TD></TR></TABLE>

Kwicko

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ssl2k &raquo;</TD></TR><TR><TD CLASS="quote">you're going to need to do a mpfi swap anyways for the b16...

so you'll need the clips/rest box anyways

mpfi over stock dpfi...20-30hp
</TD></TR></TABLE>

True, you will need to do the MPFI swap to get the B16 going, but you won't have any need for an Si ECU then...

As for the MPFI-over-DPFI statement: that's a bit of an exaggeration. The D15B2 makes 92hp, the '89-'91 D16A6 made 108hp. That's a difference of 16hp. It's a good boost, but it's not 20-30hp.

Since the cam gears are the same for all 2nd-gen models, try setting TDC as if it were an Si, instead of a DX. That sets the timing off about a tooth already, and just might fix the problem. I recently found out I'd been setting TDC wrong, because my '88 FSM only shows ONE way to set it for all models. I always had hell getting the timing set because of that - it was always off about a tooth, and I'd have to fiddle and **** with it until I could get it right, which involved starting with it off about a tooth.

I didn't have that manual handy, and I wanted to double-check because I feel like an idiot for having such a hard time with timing and TDC, so I grabbed a friend's '91 FSM that was at the shop. It was a revelation - it clearly shows one way for the DX and HF, and another for the Si! I did it the Si way, and it worked perfectly.

Maybe if you set the timing like your engine is an Si engine now, it will set the cam at the correct "clocking" position for the valve and ignition timing. Just a thought. Once you get it set, advance it a couple degrees to get a little more high-end power. Just don't advance it so far that it pings.

Mike

aaronhume

ya I don't seem to have any problems at all right now, no strange sounds or anything. all I did was advance it one tooth. so here are som pics of everything today. by the way, you can definately tell my engine is old and decreppit... but decent for almost 238k miles
---------------------------------------------------------------------------------------------
pics:




diamond in the rough


nice and black, eh?


what a beauty on the inside... didn't bother cleaning it today either lol.


I actually didn't mean to leave the timing cover off... I just forgot... honestly


Modified by aaronhume at 9:28 PM 2/14/2005


Modified by aaronhume at 9:29 PM 2/14/2005


Modified by aaronhume at 9:31 PM 2/14/2005


Modified by aaronhume at 11:00 PM 7/28/2005

EF9Si-T

pics no worky!

90LSpimpin

http://www.imageshack.us
try it again. You really got some good gains? and this will work in the b7? If so i might have to sell my stocker for more

aaronhume

I'm not familiar with the b7 but as long as its a 16-valve d-series non vtec it should work... correct me if I'm wrong but ya its noticeable even without the MPFI upgrade

aaronhume

ok pics should be constant now lol thanks for the link!

Bimmer99

you're confusing me here . a friend and i are planning on doing a d16a6 head on a d15b2 block is there something out of the ordinary to set up cam timing on this . cause i would think as long as you got # 1 at tdc on the block and the head then it should be ok please clear this up for me thanks

dr_latino999

Why would you swap the whole head? FYI, the D16A6, D15B7, D15B2, and D15B1 all share the same head casting.

4drEF

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote">Nope, has to be an adjustable cam gear.</TD></TR></TABLE>

Why?

I don't think it should be off ANY teeth!

I know that when you put a D16Z6 (VTEC head) on the A6 or B2 then you need the adjustable cam gear.
The B2 and A6 head castings were the same though so there is no difference cam location, timing belts, or anything of that nature.

I think you could use the A6 cam with the A6 cam gear and be just fine.
The cam gears may even be the same.
I think I remember (from doing the belt on my old B2 several times long ago) that the B2 gear was marked for the B2 timing settings as well as being marked for the A6 settings.

Bimmer99

because my buddy blew up the d16a6 and found a whole 90 civic std for 20 bux so we're gonna use the block from it .

vegaskurt

Wait... So the A6 and B2 are the same head? So basically the only difference is the cam, injection and the stroke right?

Kwicko

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4drEF &raquo;</TD></TR><TR><TD CLASS="quote">

Why?

I don't think it should be off ANY teeth!

I know that when you put a D16Z6 (VTEC head) on the A6 or B2 then you need the adjustable cam gear.
The B2 and A6 head castings were the same though so there is no difference cam location, timing belts, or anything of that nature.

I think you could use the A6 cam with the A6 cam gear and be just fine.
The cam gears may even be the same.
I think I remember (from doing the belt on my old B2 several times long ago) that the B2 gear was marked for the B2 timing settings as well as being marked for the A6 settings.</TD></TR></TABLE>

It's only "off a tooth" relative to stock D15B2 timing marks. It's probably right on for D16A6 timing marks, since the different marks make a difference of about one tooth.

So far as I know, the cam gear is the same one on the HF, DX, and Si. It's got marks for setting timing on all three. At least the one on my Si engine is, and so was the one on the DX engine I pulled out of the car.

Mike

aaronhume

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

It's only "off a tooth" relative to stock D15B2 timing marks. It's probably right on for D16A6 timing marks, since the different marks make a difference of about one tooth.

So far as I know, the cam gear is the same one on the HF, DX, and Si. It's got marks for setting timing on all three. At least the one on my Si engine is, and so was the one on the DX engine I pulled out of the car.

Mike</TD></TR></TABLE>

ya the gears are exactly the same. when you compare the d15b2 camshaft to the a6, and line up the notches for the gear, the b2 has the lobes advanced a little bit (so to speak) its hard to describe, but everything seems to work alright for me all I did was move the gear one notch forward. an adjustable gear would be spiffy but only if you need to tune really precise I would say. (saves like $70 or whatever lol)

ya so anyway I'm getting my B16 tomorow! w00t!