d16z6 swap with jrsc issue!!!!!

ChargedWagovan

ok, i have recently installed a z6 with a jr charger into my 90 rt 4wd wagon and im not building any boost at all....i converted my hatch too obd1 and ran a gsr with no issues at all, so i took all the wiring including jumper harness from hatch put it onto z6 and into my wagon. before this the z6 and jrsc was installed in a 93 del sol and ran fine and built 8lbs of boost all day long. so not that its in my wagon running fine and pulling like a bandit, its just not building boost....i think it may b vaccuum lines or in around that area cause eveything else is the same as the sol was..ive been looking for installs but i cant find anyone with the same setup as me...please help with any ideas.

jasnall

First off you need to watch your spelling and grammer around here, they run a tight ship. I had to read your post a few times to understand what was going on.

I run a JRSC on my d16a6 as do a few others on here with different d16xx combinations. Are you running a boost gauge? If so are you getting solid vacuum readings? Check to make sure all your vacuum nipples on the SC are connected or are plugged off if not in use. I believe there are two on the top and two down by the bypass valve. Check that black bypass valve has vacuum running to it, I think mine is running off one of the ports right next to it. Then check all your vacuum lines. The bypass valve could be broken too, or stuck open.

This is how my bypass valve is connected.
http://www.civicwagon.com/showthread.php?13677-I-love-me-some-wagons!-90-rt4wd-Supercharged&p=180493&viewfull=1#post180493

ChargedWagovan

sorry about that, im just crazy frustrated....and yes im running a boost\vac guage, and its reads solid 20 the whole time and right when i rev it, it just levels out at 0. i will check the lines now and let you know, but is there a chance i could get a photo of any of these charged d's?

jasnall

Look through my thread and Bam-Bam's fools gold thread, also do an advanced search for "JRSC" in "Title only". Hell, I'll go snap some pics of my engine bay. Since your vacuum seems to be fine I would say there's an issue with the bypass valve situation. I think the two nipples on the top are boost/vacuum and the two right next to the bypass valve are vacuum only.

Did you look at the link to my post?

ChargedWagovan

so i tryed every way i could think of too run my lines and still no boost at all..... just keeps steadying at 0 when reved. so im not sure wat too do now...almost wanna put it all back out of my wagon cause its pointless being there..ive looked and looked and cant find a z6 with a supercharger in a ef wagon.

ChargedWagovan

ok, so i forgot too mention the sc is a sebring supercharger, just bought out by jackson racing, but are the same as jrsc. so ive looked that up as well and found a couple people running them, so when i took it out of the del sol it was running the purge valve on top of the s/c where the efs have them on the firewall, so no im really confused, because urs doesnt have this valve on the charger....my by pass valve( the box with the arm coming out) has 2 nipples, and i have 2 other nipple on the end of the charger by the nose pulley, then the 2 lower nipples below the by pass valve ( wich u took a pic of), so i need too find out where these all go.

jasnall

Ok so you don't have a JRSC like mine, post pictures of all the nipples you're talking about.
Lets try to dumb it down; The bottle line is it sounds like your bypass valve is staying open not allowing boost to build. The two different locations of your nipples probaly provide two different types of vacuum. If the ports are before the air gets compressed it will just be vacuum, if they are after the compressor they will have boost and vacuum. Your bypass valve should just need a vacuum source from the manifold, maybe it needs both boost and vacuum.

I found the instructions for the 16z6 SC, look through it. https://docs.google.com/folder/d/0B6fP58Ir8r9PZmM4OTljMjMtMDkxZi00NzMwLThhZTItMmIyNTgzMjVhMzM0/edit?pli=1&hl=en

"Reinstall all vacuum hoses removed
(removal #7) to the throttle body assembly.
Connect a new 10“ vacuum hose from the
Purge Cut Solenoid Valve, mounted to the
firewall, to the vacant vacuum fitting
(capped off) on the firewall side of the su-
perchargers by-pass valve. This fitting is
between the supercharger and the intake
tube."

bam-bam

My '89JRSCD16ZRT



Bypass diaphragm is connected like so , with the other port in the adapter housing capped off



i added this tee. The 1/4" black line is reference for the water/methanol injection controller, the white 1/8" one is the vac/ boost gauge. The big one to the right goes to brake booster.



this one feeds the firewall mounted MAP sensor visible at top left




And this to the fuel pressure regulator

ChargedWagovan

ok, motor is coming out today gonna go over all the steps from the beginning , i forgot too change the oil pick up on the z6 when installing the oil pan...im gonna remove everything i can and clean them, because no matter wich way i put the vac hoses on the bypass valve, it doesnt move much at all when motor is reved. plus temp gauge isnt working either, so fans wont turn on so i must wired the switch wrong on harness, i will take photos of motor in and out and post progress. thanks for the help.

ChargedWagovan

bam bam- thank you for those photos, definitely different than mine, should i unplug my map sensor on top my the t/b and use the ef firewall map sensor? and it looks like your bypass valve has only 1 vac line on it, mine has 2, i should try plugging the one and using just the top one. and where is ur purge valve?

bam-bam

Post some pics of what you're working with, might help us help you.

I'm using the remote MAP because I need to read manifold pressure (boost) after the blower. I'm not using any of Jackson's workaround engine management- no pressure switch/ relay, no controller, no rising rate FMU. I don't recall offhand what the original instructions said about MAP.

bam-bam

Bypass: mine is closed at rest, and held open by vacuum. If it were not connected, the plenum would be pressurized (under boost) all the time.

Are you sure that the compressor is actually spinning?

purge valve? In the scrap bin. I'm not using any emission controls.

ChargedWagovan

well, it just isnt making sense too me because it came out of a delsol building boost then nothing in my wagon...how would i check too make sure compressor is spinning..

bam-bam

Show me where your gauge is plumbed.

jasnall

Isn't the compressor always spinning since the belt is always spinning it?

We need pictures ASAP.

ChargedWagovan

exactly thats what i thought, but anyway, i messed around some more a few mins ago, switched some hoses and took off my by pass valve and cleaned everything. sorry my camera is junk so i couldn't post photos but i used too have the pressure switch, which is threaded into the same spot is bam bams meth injection hose/boost gauge goes, i disconnected it and wired back into iat sensor....i plugged my boost gauge beside where the fuel regulator vac goes and same thing 20 vac at idle then when i rev it up it hits around 4.5-5 psi.... which is better than 0..just wondering when there is no load on the charger will it build max boost? and i looked at my by pass now when i rev it and it doesn't really move at all now.

jasnall

I believe there has to be load, My Mazdaspeed 3 wouldn't build boost sitting in neutral.

bam-bam

It doesn't necessarily need a load, but 5psi is about all you'll see sitting there blipping the throttle. When I use launch control, mine register about 6psi at 3600 rpms on the two-step. I'm running an undersized (3") pulley too, and I only see 10psi way up in the revs near redline.

If your gauge was previously plumbed before the blower, that would explain manifold pressure flattening out at zero.

ChargedWagovan

update.........car is running very bad and idles all over the map, still not getting any boost and dont hear supercharger at all, so since its my dd car im going too be pulling motor out in a few mins and put the old dohc zc back in... kinda sucks cause i was excited too have a supercharged z6 but no go..thanks for all your help guys but everything i tryed wont work.

last thing i tryed after switching the hoses and went for a rip the car would stumble on its face until 3500-4000rpm and then rip like a bandit, ??? dunno, either way its coming out..

humorwvp

You know last time I thought about giving up, my lilttle brother suggested changing the injectors. That worked for me. can't hurt, if you haven't already.

leWolf

I have ran a jrsc on my z6 in my ef wagon with no issues, sounds like either your charger isnt spinning due too the pulley smacking on the frame rail or belt missing. Or your bypass got damaged it the swap, if you rev your engine a little and look at your bypass the actuator should move back and forth. If it's stuck open you will create NO boost and your charger will be whisper quiet. I do demand several pictures though since that will give all of us a way better idea of what you have.