a6 vs. z6
 

was looking at building a z6 block but came across a free a6 engine w/ a blown HG.
anyways, what are the differences between a6 BLOCK vs. z6 BLOCK ?? simple ??

Re: a6 vs. z6
 

a6 block has a stronger girdle i've heard.

a6 uses 88-95 d15bx waterpump/motormount

pistons are different obviously

same crank, oil pump, rods, etc.

Re: a6 vs. z6
 

get it, i love a6, id trade my blown z6 for a blown a6 haha

Re: a6 vs. z6
 

take it and build it. later if you want vtec again swap the z6 head on and up the compression a little

Re: a6 vs. z6
 

what im going is building the block w/ tt rods, vitara pistons, king bearings and etc. and im going with a z6 head for some mad tyte VTACH ! ! !

so all i wonted to know is the difference between the two blocks. ex. oil pump, water pump, sleeves and etc.

Re: a6 vs. z6
 

Go with the A6 and slap a regrind cam in the head.Vtec is overrated.

Re: a6 vs. z6
 

how high can you rev the stock a6 head ??

Re: a6 vs. z6
 

Not sure.I would guess around a little less then 8K?

Re: a6 vs. z6
 

a6, obd0, non-vtec

z6, obd1, vtec

:P

Re: a6 vs. z6
 

run whats cheaper, both are good.

Re: a6 vs. z6
 

run a y7 head and build the block and screw both the a6 and z6 head. y7 has the biggest sohc valves of all d series.

Re: a6 vs. z6
 

y7 and z6 valves are the same, I am using y7 valves on a z6 head.

Re: a6 vs. z6
 

I really like the A6 (or B2, or B7 - same thing), they flow great, and with cams are awesome. You can get mild NA cams for $60 if you put your ear the the ground, and I think chris was telling me he's revved them to the moon on stock valvesprings.

I wouldn't go Z6 unless the head was practically free. They flow comparably to the A6, the stock cam is a hair better but nothing to write home about... if it was all that, the idle would lump a little since D-VTEC is only on the intake profile.

Anyone wanting 350-ish whp, feel free to run either stock A6 or Z6 head. Cams and porting and stuff are for bigger power setups where you need more flow and more cam, at which point A6 is a hair cheaper and you get a killer lumpy idle that proves you are a man. Some people get a little freaked out by a camming turbo car especially a 4 cyl, it's great, they either think you are a retard or they know what's up. :)

Which means they are the exact same size as everything else D16, except the A6 that gets .5mm undersized. ::)

Re: a6 vs. z6
 

jd, since you got in on this, you got any preference between the two blocks ??

Re: a6 vs. z6
 

Not really. Both girdles are pretty damn stout. If they didn't have girdles I'd suspect you'd run into rod and sleeve problems before the girdle thing comes home on you.

If you have to pick between A6 and Z6, do it based on the A6's +0.020" deck height.

Re: a6 vs. z6
 

Im going to be running a D15 in my new race car 8)

Re: a6 vs. z6
 

exactly, god i loved my old a6, got her with 256k on it and took it out at 296k still running strong, used a exospeed regrind cam, on a 50 shot and few other little ----, hell its the only motor to last in my car. haha ironic.


a6 FTW!!!!

Re: a6 vs. z6
 

One of Blundell/Foowee's friends Stithouse had a 200K A6 in a battered CRX with a JRSC and 75 shot, he glued a bunch of wierdass treasure trolls and figurines to the car and took a lot of people's money at the streetraces because they thought he was a dumbass. :)

A D16 and some balls is all it takes, I just like the A6 better because it doesn't have a certain four letter V-word on it.

Re: a6 vs. z6
 

yea for sure, a6's r some strong mothers, ol betsy didnt even smoke just a lil puff :6 :6

Re: a6 vs. z6
 

I prefer the A6 becuase vtec is limp wristed and the less things there are to go wrong/deal with the better.Keep it simple.

Re: a6 vs. z6
 

A6 bottom ends are the best eVER :X

Re: a6 vs. z6
 

haha, mine left some awesome black marks in the snow when I started her up O0

Re: a6 vs. z6
 

i like both, and have owned an raped on both. just roll with what you got.

Re: a6 vs. z6
 

I own both, have run both.

Right now, I actually have a combo of the two. A6 head on a Z6 bottom end for low-compression fun.

Re: a6 vs. z6
 

yea well i had both too, and 9psi left me with 3 cylinders and a inch wide line from the top back of the block to the front top, the z6 got owned, srp piston stuck sideways but yea, it got 46 miles a gallon in my crx, both were good motors, just less bullshit with the a6, the z6 vtec single cam ---- is weak sauce.

Re: a6 vs. z6
 

only 9psi. what happened?

Re: a6 vs. z6
 

How high is to the moon?

Re: a6 vs. z6
 

well its 3,563,735 Km, not sure of how that translates in to RPMs though :P

Re: a6 vs. z6
 

ya I was also interested in how his it the moon and how high can you go on a after market cam. power gains ect. also what would be a safe boost level tuned in a a6. I just swaped one in my 97 civic and am only pushing 9.5 psi right now looking at maybe 12?

Re: a6 vs. z6
 

yea i am hoping my z6 will take 12. it has stock internals with arp head studs, new oem headgasket, and new timing belt and water pump??

Re: a6 vs. z6
 

To the moon, Alice!

Re: a6 vs. z6
 

"A homeless family of three sleeps on a TV production stage, by day looking for a job. One day somebody find them..."

???

Re: a6 vs. z6
 

Maybe I'll just ask Chris. :P

My combo has taken 14 for the last little while now, only thing that's gone wrong is my clutch won't hold it anymore.

Re: a6 vs. z6
 

Time for a twin disc!


:P

Re: a6 vs. z6
 

a6 head is by far the better choice


And yes the things can rev to the sky on stock springs


Well above what people are going to make power too

Re: a6 vs. z6
 

I'm actually looking at the Action 2MD, stg 5 or wtvthefuck. 400ft/lb capacity, it's either that, or a Clutchmasters stg 5 4 puck. Yay, traffic is gonna be fun.

Stock springs + stock cam or can you get away with high lift ---- as well?

Re: a6 vs. z6
 

I just got off the phone with delta and they told me I should run a 272/262 or 260 on the turbo setup. He said I could expect like 15 to 20% more power over stock cam. the stock springs would be fine also and I could run it to 7500 safely. here is the best part 75 bucks for the regirnd. freaking cheap. I think a6 regrind over z6 head.hmmm choices. :S

Re: a6 vs. z6
 

---- that, I'm running the 282 grind next spring. I need a manly idle.

Re: a6 vs. z6
 

If the D-series Action comes with 3000 lb pressure plate you're going to need to reinforce the pivots on the clutch pedal so it doesn't break off all the time.

Re: a6 vs. z6
 

No idea, if that's the case, time to break out the fluxcore.