Quattro Krant wrote:[/quote]
-I always have a great time in Canada and there is just something about it in the summer.[/quote]
You mean above zero temperatures?
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Sun Jun 12, 2011 5:46 pm
by ralleyquattro
Still no resolution to the poor running, given I have had solid 2 hours to work on it in the last 2 weeks, but, we have confirmed that.
- There are no vacuum leaks
- All sensors report good operation (tested as per VAG procedures)
- New FPR installed and I blew the return line back to the tank and it "felt" relatively restriction free.
The only thing I have not checked is actual fuel pressure at the rail and that is the next thing to be done.
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Sun Jun 12, 2011 6:01 pm
by Hank
What does the port under the "audi" for? I am talking about the two bolt flanged port...
Nice piece!!
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Sun Jun 12, 2011 6:08 pm
by ralleyquattro
ShavedQuattro wrote:What does the port under the "audi" for? I am talking about the two bolt flanged port...
Nice piece!!
That's the coolant outlet. The street version of the Sport manifold has the water manifold cast into it.
The rally varsion (like James B's car) has a seperate water manifold but same look on top.
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Sun Jun 12, 2011 6:16 pm
by Hank
Oh wow! I am not sure if I would like my intake manifold at 180 degree's constantly, but the one piece design sure is cool!!
That thing is cool. Can you take some pictures pointed into the plenum, and perhaps some pictures of the runners from the inside?
I like how all the inlets to the head are all round ~5/8ths holes instead of the goofy 7a manifold oring thingy
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Sun Jun 12, 2011 6:39 pm
by HT Motorsport
Wow that's cool to see, thx for sharing!
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Mon Jun 13, 2011 8:50 am
by 1wheelpeel
Nice intake Martin!
It sucks to hear that the driveability issue is tricky one. I've been burned by these sorts of problems before and thought, arrrhhh why didn't I see that earlier! It's always one little piece of data I overlooked while searching for something more common. I hope you find it soon. I'm interested to hear how that engine performs.
1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Mon Jun 13, 2011 9:17 am
by Tonks4x4
Well done on you inlet manifold Martin!!!!!
Now the race is it to find a throttle housing between us. They are available but 1400 Euro.
I had a quick play to see if anything else will fit, but everything so far is too small :(
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Mon Jun 13, 2011 10:13 am
by ralleyquattro
Thanks,
I had a quick look and will most likely go with an adapter plate if I can't find anything bolt on.
Have you checked any of the Porsche throttle bodies?
1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Mon Jun 13, 2011 11:26 am
by Tonks4x4
Not yet, the other issue is that the throttle cam works in reverse to all the other audi throttle bodies I have looked at.
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Mon Jun 13, 2011 11:41 am
by ralleyquattro
We'll have medicine for that..
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Mon Jun 13, 2011 2:29 pm
by Hank
What do you run for an intake manifold/watermanifold gasket?
1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Mon Jun 13, 2011 3:45 pm
by Tonks4x4
I have got a gasket on it's way to me Martin if you are struggling, I can sketch round it when it lands and send it over.
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Mon Jun 13, 2011 4:05 pm
by ralleyquattro
Or a scan if you have a scaner large enough. I can then have someone cut one for me.
Thanks for the offer!
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Thu Jun 16, 2011 5:35 am
by ralleyquattro
Update:
Spent 5 hours last night at Craig's shop trying to figure out why Motronic was choosing to run 10-13%CO.... this is with all of the inputs functioning correctly. We even turned down fuel pressure to 3 bar with same results... It just refuses to run properly.
Threw VEMS in there for lough, without wideband, and base map and touching anything it was running 0.5% CO and MUCH MUCH better. At least it will not idle.
So we are still scratching our heads. But, looks like I am going with VEMS from now on.
Sad to say but Motronic beat us to submission.
Waiting for USB-serial cable so we can hook up to VEMS, good times ahead.
Cheers
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Thu Jun 16, 2011 6:02 am
by Audiurq
Long shot but you might want to double check the vmap settings?
cheers, Mike
Re: 1984 Ur-q with 20vt and 6-speed aka Shannon, she drove!!
Posted: Thu Jun 16, 2011 6:13 am
by ralleyquattro
I would but it ran the same on stock computer with stock MAP sensor. doh!
Anyone want a Motronic with VMAP and 034 GT3071 chipset?
Feeling is that even though we had 3 mafs to try all of them might have been faulty.
That is the only variable that changed between Motronic and VEMS as far as inputs.
Cheers
