I'm gettin ready to get an z6 complete intake manifold. I know that i will have to use my obd0 injectors, extend the map sensor wire to the map on the throttle body of the z6. Will it work? anything i need to know before i go ahead and swap it. Am i going in the right direction ...swap my obd0 injectors on the z6 manifold and extend the map sensor wires? also will all my other sensors will plug right up? let me know.

thanks, Ron

 

I just did this a few nights ago.
For some reason the MAP sensor extension didn't work, and it's a pain in the *** to plug up the hole for the one on the Z6 mani, just go get the right MAP sensor and use that, if you can't find one cheap PM me there is another one at my local junkyard I can pull for you. You also need the EACV off the Z6 mani, the A6 one won't bolt up, the holes are different. You need the fuel rail from the Z6 too, the mounting holes for the A6 one don't line up (and it looks a lot better, probably not corroded to **** depending on your motor). Use the FPR from your A6 manifold, I didn't even bother with the Z6 one I had because one of the nipples was bent and crushed, but I was told it won't work for some reason (which I don't remember, try it if you like). You will need to cut the harness a little to free up some wire to reach the MAP sensor on the throttle body (you DID get the throttle body right?). The brake booster line will reach fine. Keep your stock injectors like you said,but you need to get rid of the black plastic thing that holds the injector wires in place, it's too long and will bump into the FPR. You also need to open the harness wrap a little at the end of the injectors to get the IAT sensor around to the back of the new manifold. It will make it back there without cutting anything, I did it. I would recommend putting all the coolant lines on before you bolt the mani down, it's a lot easier. Also, that middle bottom nut is a real pain in the *** with the Z6 manifold (you'll see what I mean). When are you doing this? I'll try to get some pictures of mine tomorrow if you want to see it, and it might make the explaination easier.

 

I'm planning to do this whenever my z6 manifold comes in the mail. what you mean by the map sensor will not work for you ? And yes I've got the throttlebody also and did u mean use the map sesnor thats on the throttle body ?

 

I don't know why, my A6 MAP wouldn't work with the new manifold correctly. Just use the one for the Z6 (yes the one on the TB), it's pretty cheap anyway. Also it allows you to clean up the firewall if you remove the charcoal canister and purge thingy as well. If you want to keep it, it's located on the back of the Z6 manifold, but you can remove it (no prob with inspection in NH), it's probably not doing anything at this point anyway.

 

Oh alright, I was confused on whatmap sensor you were talking about. I'm going to use the one on the throttle body mounted instead of the one on the firewall. I heard it gives you a better reading if the map is mounted on top fo the throttle body as well. The purge solineid on back of the manifold can I just remove it and block it off?

 

Yeah just take it off and plug the nipple for it. You will need to free up some wire to get the MAP sensor plug to reach, shouldn't need to cut anything but you will need to cut the harness wrap a little bit to get the extra length.

 

just curious.. why would you wanna use the z6 intake mani whats wrong with the a6 i/m?

 

alright gotcha. i was wondering, i havent got my z6 manifold in yet but does the throtte body have an fitv (sp) valve right under it? or is the same with a6 with little nipple for coolant to pass through?

 

bec I'm sure my has a little tiny crack in it and if never idle right at all. I tried everything to get it to idle right but it wont. besides the complete z6 manifold is only 20.00 bucks on ebay so i jumped on it. It a little improovement over an a6 manifold and also map sensor mounted on top of the throtle body gives a better reading.

 

its the same its got a nipple in for coolant and a nipple out for coolant... just make sure when you put it on you turn down the idle adjustment screw or it will idle at about 2k with out that diaphram thats on the a6 throttle body...

as for streching the map sensor wire i dont see why you would i diditn have to with mine and i had plenty of slack

p.s. why are you swaping intake manifolds?


Modified by si0385. at 5:08 PM 3/4/2006

 

because i can never get my a6 manifold to idle correclty, with new gaskets and everything.

plus the z6 has an better flow inprovement and i like the idea of the map sensor mounted on top of the throttle body to have a better reading.

 

Do a search, the Z6 flows better, and the Y8 is better than that. Aside from that, it looks a lot better, cleans up the bay a bit once you remove the crap on the firewall, and the fuel rail is a lot nicer looking IMO. Also it doesn't have a million little vacuum lines in it. Since my A6 mani is fine, I cleaned up the Z6 with a sandblaster and painted it too. I got mine for 10 bucks, he got one for 20, why not use it?

Idk what is up with your MAP sensor wire, maybe it had already been modified? I didn't have to take that much out, maybe a couple inches, I didn't want it pulled tight to the harness (plus it looks like **** that way). I didn't change the idle adjust screw, you do have to adjust the throttle cable since the mount for it is different, but it idles perfect just like the A6 manifold did.

BTW, what is the diaphragm on the A6 throttle body for? I always just thought it was a damper so it doesn't snap shut or something.

 

yeah i dont wanna mess with the idle screw at all ...just leave it where it came from factory but it it kinda high then i will turn it down a bit.

 

the diaphram is for the high idle when its cold and the throttle cable had nothing to do with it it was the idle screw that was adjusted way to high from the facotry cuz it still had factory paint on the threads

searching has nothing to do with it i ask cuz i did the same thing and there is no noticeable perfomace gains from it... as for cleaning up the engine bay imo i think the a6 looks better, expecialy since i took that high idle diaphram off and took out the purge solinoid an the charcoal canister, so just having a little map sensor on the firewall is not hte end of the world...

and from what i hear there are no noticeable performance gains from the y8 intake mani either, the a6 flows just daindy

just trying to save you some time telling you from experience but if your doing it to clean up the engine bay more power to ya

 

I just swaping intake manifolds because i cant seem like to ever get my A6 to idle correctly. i tried everything to get it to idle didnt work at all, so i gonan give this z6 manifold a shot, see if it idle correctly

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by si0385. &raquo;</TD></TR><TR><TD CLASS="quote">the diaphram is for the high idle when its cold and the throttle cable had nothing to do with it it was the idle screw that was adjusted way to high from the facotry cuz it still had factory paint on the threads</TD></TR></TABLE>

Mine has the yellow factory paint too... idles fine.

Here's a thread about the Z6 vs the Y8, I know it's a pain in the *** since you can't search for anything shorter than 3 letters. I can't find the one about the A6 at the moment, but going with the idea that the Y8 mani is better than the Z6, it follows that the Z6 is better than the A6. I may have a chance to get on a dyno over spring break, I'll post the results, since basically my only power mods are the Z6 manifold and CAI.

 

i was mainly refering to the a6-z6 intake mani witch i have personaly tried and noticed no performance gains

ive heard from other people i know who have tried the y8 intake mani and didint notice any performance gains

i did not try searching im telling you what i know and what ive hears

so you can stop being a smart *** anytime now

 

let the games begin

 

I'm sorry, I really wasn't trying to be a smart ***, I was actually trying to be helpful, hence the write up on what fits and doesn't.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by si0385. &raquo;</TD></TR><TR><TD CLASS="quote">let the games begin </TD></TR></TABLE>

LOL please let's not! Too many threads in this section end up as flames wars, lets leave it as tech, the EF section has a bad enough rep as it is.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by downest &raquo;</TD></TR><TR><TD CLASS="quote">I'm sorry, I really wasn't trying to be a smart ***, I was actually trying to be helpful, hence the write up on what fits and doesn't.

LOL please let's not! Too many threads in this section end up as flames wars, lets leave it as tech, the EF section has a bad enough rep as it is.</TD></TR></TABLE>

cheers
finaly found someone that acts there age that can have a difference of oppinion and be ok with it