B4Q 80-AEB; Oil pressure gauge in

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Re: B4Q 80-AEB; Running on VEMS, log attached

Postby ChrisAudi80 » Mon Aug 29, 2016 2:14 am

After talking to loxx a bit, the accel enrichments need a lot of work. Still need to get my head around it.
Slowly getting there.
Today's log
Attachments
v3.3_n002154-2016.08.29-11.41.08.vemslog
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96 S6 auto
95 80Q AEB VEMS
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Re: B4Q 80-AEB; Running on VEMS, log attached

Postby ChrisAudi80 » Tue Aug 30, 2016 1:20 am

Yesterday, it started to get trigger errors. Caused primarily by bad GND connections in the adapter, but also because of rpm dropping too low on throttle off and AC on. Seems like the crank and cam pos sensors lose signal when rev drop too low.

It idles at 660 with AC on. Looks like an ISV install is required. :shame:
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Re: B4Q 80-AEB; Running on VEMS, log attached

Postby ChrisAudi80 » Wed Aug 31, 2016 1:57 am

Alright, lots of progress today with acceleration enrichment and more VE tuning. Also, managed to get it to idle at 700 or so with AC.
Fixed the major trigger errors. The grounds were bad in the adapter. Do'h.

Also, found out why the tank spits E85 after filling. The rubber cap ring was out of position. :shame:
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Re: B4Q 80-AEB; Running on VEMS, log attached

Postby ChrisAudi80 » Thu Mar 02, 2017 10:00 am

No updates for a long time...

Let's see, tuning is getting better. It can comfortably run open loop now. Which I did today to fine tune VE.
Got the AEB IAC hooked up and working. Sorta, but idle is way better now. Accel enrichment is fine. Runs quite smooth now.

Fixed the trigger error. Was a badly soldered wire in the adapter on the Motronic connector side. I touched the cam sensor signal wire, off it came.

Soon the cast control arms I bought for way too much will go on. Just waiting for AK MS to ship the 45mm bushings. Already have much needed strut mount bushes and a thermostat.
Will be interesting to see how to change out the mount bushings, since the coil-over set does not have the allen head in the shock top.

Jonesing for a TD04HL-13G from a Volvo :bangshead: 200 (or so) crank is just not cutting it anymore....
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Re: B4Q 80-AEB; Running on VEMS

Postby ChrisAudi80 » Tue Apr 04, 2017 2:58 am

So, had an interesting Friday last week.

Finally got the forged control arms with AK MS red bushings installed with new struts mounts and fresh thermostat. Messed up the control arm install a little. They are now flipped and L R swapped so the nuts are on the top. Should not make a difference, except I might have accidentally improved my roll center.

Anyway, drove to the best alignment shop I know. Get there, can't start anymore. After a lot of hassle and a tow at 5PM on a farking FRIDAY in Bangkok, turns out the alternator shit the bed. Now rebuilt with brushes, bearings, charge relay whatnot. Made the voltage reading in VEMS more stable.

Went back to the alignment shop on Monday. Computer was down, but the guy did it manually. Dude knows what he's doing.
Camber was all over the place. Took a bunch of fiddling. Found out the the left front shock is leaking! :bangshead: It's only 6 months old!

So, the budget for brake pad upgrade was shot on the alt. Don't mind so much since that is now taken care off.
Also fixed a bad solder in the adapter on the wire for the fuel pump relay signal.
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Re: B4Q 80-AEB; Forged control arms, PU bushings

Postby ChrisAudi80 » Tue Apr 18, 2017 2:43 am

Small update.

Steering feel and response is WAAAY better after previously mentioned stuff installed. I actually have response on-center!
But that left front shock clunking is pissing me off.
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Re: B4Q 80-AEB; Forged control arms, PU bushings

Postby ChrisAudi80 » Sat Jul 01, 2017 10:01 pm

Another small update.

Had the leaking shock replaced. The managed to install the strut mount bushing upside down so immediately broke the bearing. No worries, had plenty spare from ECS. Note, $1.94 strut mount bushings are junk. There was no middle choice. Original was $55 each!
My budget for the AK motorsport solid mounts ( https://www.akmotorsport.net/shop/all-p ... top-mount/ )was blown on one of our dogs vet bills.

In the meantime, replaced the control arm ball joints.

Still have a wobble at 90kmh, so considering to put Heim joints at both ends of the stock tie rod arms. Will need some modification, I know.
Anyone know the Heim joint sizes I need?
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Re: B4Q 80-AEB; Forged control arms, PU bushings

Postby ChrisAudi80 » Sun Jul 02, 2017 10:13 am

ChrisAudi80 wrote:
Still have a wobble at 90kmh, so considering to put Heim joints at both ends of the stock tie rod arms. Will need some modification, I know.
Anyone know the Heim joint sizes I need?


According to Aaron 5/8" or 1/2", but should use covers.

EDIT: Yes, had an alignment done. Again. Tracks straight. No vibration at 140kmh+ Camber is -1.9*. Very little toe in. Stock caster.
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Re: B4Q 80-AEB; Forged control arms, PU bushings

Postby PRY4SNO » Sun Jul 02, 2017 11:19 am

Nice man, incremental progress adds up.

Do you daily the B4 or the S6?
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Re: B4Q 80-AEB; Forged control arms, PU bushings

Postby ChrisAudi80 » Sun Jul 02, 2017 11:02 pm

PRY4SNO wrote:Nice man, incremental progress adds up.

Do you daily the B4 or the S6?


Thanks. I daily the B4, my wife dailies the S6.
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Re: B4Q 80-AEB; Forged control arms, PU bushings

Postby ChrisAudi80 » Tue Aug 01, 2017 1:59 am

So, finally the solid strut mounts are in! These pieces are real good quality. Easy to install. Noise level is so close to stock that there is little difference, but you do get better road surface feel.
https://www.akmotorsport.net/shop/all-p ... top-mount/

But... I still have shaking in the steering wheel. Not vibration. Next step is to check the front tires balance, alignment (again :bangshead: ) and swap the inner tie rod bushings. Would like to use heim joints, but that's a bit out right now.

Next step, brake pad upgrade.
Attachments
IMG_20170731_205729.jpg
IMG_20170731_205729.jpg (2.27 MiB) Viewed 1932 times
IMG_20170801_102923.jpg
IMG_20170801_102923.jpg (2.6 MiB) Viewed 1937 times
Last edited by ChrisAudi80 on Tue Aug 01, 2017 6:36 am, edited 1 time in total.
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby ChrisAudi80 » Tue Aug 01, 2017 6:35 am

Weird. On the way to work, had shaking above 100kmh, then on the way back home, almost none.
Took it up to 160 without shaking :drive:

Just ordered bushings for the inner part of steering rod arm connected to the rack. I know they are worn out. Hear ticking when moving the steering wheel.
Wish someone sold PU versions...
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby the german » Tue Aug 01, 2017 11:45 am

Are your wheels hubcentric?
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby ChrisAudi80 » Tue Aug 01, 2017 10:50 pm

the german wrote:Are your wheels hubcentric?


Yessir, had custom hubcenter adapters made when converted to 5lug. The shaking is nearly gone. Guess it's settling in.
Will see what happens after the tie rod bushings have been replaced.

So far, I love these new mounts. :D
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby ChrisAudi80 » Tue Sep 12, 2017 5:11 am

Small update:

Found out what was causing the shaking. It was on the list of to solve, but forgot it. It was the inner tie rod arm bushings. The ones that bolt to the rack.
Got the old bushings taken out and replaced with custom made PU ones. No more shaking! Yay.

However, discovered that left front wheel moved a bit the other day while having an oil pressure sensor installed. Went back to the suspension shop to get that fixed and the front raised 1cm. Car feels real solid now.

Other than that, the tune is coming along well. Changed the boost profile a little down low and added tiny bit of timing in certain places. Sure woke it up even more. However, it seems the puny K03 is coming to the end end of its life. It won't hold any more than 200kpa. Used to handle 218. I'm at 100%dc. Oh shucks.

Up next is making the fuel system safe and better. The giant tank will be chopped a little, gonna get roll-over check valves on the vent system. All that AN fitting stuff sure adds up fast. AN-6 feed line, billet rail, Aeromotive FPR and flex fuel sensor in the bay. Time to get a bit less ghetto on this bitch.

Some pictures.
Attachments
inner tie rod bush.jpg
inner tie rod bush.jpg (240.49 KiB) Viewed 1481 times
oil gauge.jpg
oil gauge.jpg (185.69 KiB) Viewed 1481 times
strut bush1.jpg
strut bush1.jpg (172.17 KiB) Viewed 1481 times
strut bush2.jpg
strut bush2.jpg (134.24 KiB) Viewed 1481 times
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby PRY4SNO » Tue Sep 12, 2017 9:21 pm

Nice progress! Great to get things solved and off the list, before too many pop up to fill the void.
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby ChrisAudi80 » Wed Sep 13, 2017 6:15 am

PRY4SNO wrote:Nice progress! Great to get things solved and off the list, before too many pop up to fill the void.

Thanks.

Yeah. There are so many items on the list.
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby ChrisAudi80 » Fri Sep 22, 2017 10:02 am

So, needed a new battery :bangshead: Just the kind of cash I didn't want to spend. 3.5 years old.

And, it seems like the alternator is not charging normally, even though I had it rebuild a few months ago. Can a regulator go bad that fast? I'm reading 11.7-12.2v with AC on and fans on high speed. I trust there will be warranty on the alt.

In more positive news, I've finally enabled overrun fuel cut and understand it.
The trick to not stall at low rpm stop and go are these settings in VEMS: 0kpa, cut above 1800, enable 1600.

I'll see if it makes any significant reduction in fuel consumption. Just filled the tank.
Speaking of tank, the next step in the plan is modding the tank by cutting off the back end, removing the stock basket and putting in a vertical plate to clamp the pump and level sender to. Also, will be ANing the fuel system, starting with the vent system. Will be adding roll-over check valves.
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B4Q 80 AEB Solid ball joint strut mounts in

Postby Henrybor » Mon Sep 25, 2017 12:34 pm

i have a NOS ADO16 long shaft, dont recall if its a Pot Joint or rubber coupling one...
Will confirm you in the next couple of days...

cheers
Luis
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby ChrisAudi80 » Fri Sep 29, 2017 12:59 am

Oil pressure gauge is in and working. This is with cold engine @ 2000 rpm. Seems OK.
Attachments
oil pressure gauge working.jpg
oil pressure gauge working.jpg (155.63 KiB) Viewed 1134 times
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby vt10vt » Mon Oct 02, 2017 2:45 pm

ChrisAudi80 wrote:Oil pressure gauge is in and working. This is with cold engine @ 2000 rpm. Seems OK.


Question for you- what do you see for a HOT oil pressure? My 1.8t gets about the same as yours cold, once the coolant is up to temp it's right about 20psi @idle but it gets a lot lower than that after it runs at operating temp for a while. Still doesn't throw the oil pressure light, but curious what you're seeing since you're in a hot climate.
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Re: B4Q 80-AEB; Solid, ball joint strut mounts in!

Postby ChrisAudi80 » Tue Oct 03, 2017 1:03 am

vt10vt wrote:
ChrisAudi80 wrote:Oil pressure gauge is in and working. This is with cold engine @ 2000 rpm. Seems OK.


Question for you- what do you see for a HOT oil pressure? My 1.8t gets about the same as yours cold, once the coolant is up to temp it's right about 20psi @idle but it gets a lot lower than that after it runs at operating temp for a while. Still doesn't throw the oil pressure light, but curious what you're seeing since you're in a hot climate.

I see about 15-20psi hot idle and anything above 2000rpm, about 50psi.
I use 5w40 diesel oil.
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