944Hybrids: 924/944/968 and 928 V8 Conversions
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HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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Xschop's 5.3 LM7 build

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nailed it - Xschop's 5.3 LM7 build - Page 3 Empty Re: Xschop's 5.3 LM7 build

Post  cfgioja Sat Jun 12, 2010 7:13 pm

dont know about that, I didnt have a/c, heat or emissions on my last body.
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Post  xschop Sun Jun 13, 2010 7:46 am

Scratch that, I'll leave that vacuum canister hooked up as I found a very quick way to install the ECM under the floor board and get rid of the bracket and plywood.... I used some super tough 2" thick Polyurethane Rubber foam and spray adhesive to make an ECM cradle....I'll take Porch's word that the ECM won't get hot under the carpet...sure won't get any hail damage for sure Razz
Anyways it's set. I am leaving the battery well unmodded for a final mod mock-up later down the line.... Cool
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Post  xschop Sun Jun 13, 2010 9:49 am

Tech question....

I didn't have the MAP sensor come with the LS1 intake and I gave away the 5.3l intake (which I'm not sure had the 5.3 MAP sensor attached)

Question is....since I installed the LS1 intake, do I buy a new LS1 MAP sensor, It looks different in the pics....Or does it put out a different signal than the 5.3 MAP sensor.....

From pics it looks like the 5.3L MAP sensor can have 1 side of the attachment prongs cut off and clear the LS1 intake on the back side where it mounts (the 5.3 mounts on top)
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nailed it - Xschop's 5.3 LM7 build - Page 3 Empty Manual rack on late offset

Post  xschop Sun Jun 13, 2010 11:55 am

Hey Eric.....Use Moog EV-154 for your bump steer kit when adding a manual rack to a late car...

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EV-378 is used for a 100% bolt-on solution with Power rack outer ends to put the manual rack on late car offset.... Rennbay can whine all they want.....
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nailed it - Xschop's 5.3 LM7 build - Page 3 Empty nother tech quest

Post  xschop Tue Jun 15, 2010 4:56 pm

The PCM and GM harness has 1 red wire that plugs to the top of the truck alternator....So do I disreguard the Blue wire from the 2-pin connector above old vacuum booster? (Large RED/Black stripe and Blue wire together)

Also how are you guys hooking up the Fuel pump? Are some of you using Old Porsche relay or wiring in new relays from the PCM? If running them off the PCM where did they go?
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Post  modenas Tue Jun 22, 2010 6:58 pm

so what happen with the wire harness that greg has? you gonna get it back?
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Post  xschop Wed Jun 23, 2010 9:37 am

I guess I'm S.O.L. on the harness.
I'm working with SSP on a 1-off harness. I got the Multec2 fuel injector connections yesterday (4.8,5.3,6.0) and they are emailing the Fuel pump relay and low and high speed fan relay diagrams....the rest is plug "n" play. Very Happy

I found this oil filter adapter that fits perfectly in the driver's side inner fender well and clears the headlight swingarm/stop.....
question is, will 3" diameter oil filter be ok for this swap? The inner port is "out" and the side port is "in"...
Does it matter which way the oil flows and from which ports on the Moroso 20140? I haven't seen this info posted anywhere....
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I'm getting closer....got my beef on....the rears are 285-30-18 and the fronts are 225-40-18 on Turbo twist II's... I just put on what size tires came with these wheels on the Carrara 911's....
As you can see the RX7 caliper swap clears by 5 miles....

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The rear rims protrude inwards by about 3/8" ....
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And the outter face of them are nice and flat with the tire profile....I had to grind off the 2 torsion plate carrier studs and the back of the rim clears everything by 7mm with no spacers on the rear Very Happy

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For the fronts, I am going to run 8mm spacers only because the Hub dust/grease caps interfere with the inner TTII wheel machined area....If it weren't for that the Big Lexus LS430's still clear by 3/4"... Very Happy
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Post  gt1scca Wed Jun 23, 2010 11:10 am

Harness is shipping today, with other parts. I should have never agreed to that, but everything you sent is intact, boxed up for the USPS.

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Post  xschop Sat Jun 26, 2010 7:41 am

Just confirming that the passenger side adapter is a "mirror" image of the driver's side....And a peculiar thing is the Factory Porsche Flag mirror base is almost 1" shorter on the passenger side...go figure.....

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I found some stainless braided lines laying around that fit the Lexus brakes (M10 x 1.0) ....so I had to re-bleed....just crack out the BD 60ml syringe and see-through fuel line.... Cool

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Post  xschop Sun Jun 27, 2010 5:47 pm

The 14 -pin connector on this car has a large Green wire that is not in the manual.... Also There is a large Red wire/blue stripe that says "not used"....
Question is my PCM harness has a 12v+ fused constant battery marked on 2 of the wires (one goes to OBDII outlet)...I'm wondering if the large red/blue stripe wire from the 14-pin connector will work?

I already hooked up the large Red/yellow 14-pin wire to the harness marked 12V+ switched....

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Post  xschop Mon Jun 28, 2010 9:13 am

Bump...anyone have an idea if the large Red/blue stripe wire is constant fused 12V+ ????

SSP wiring are good guys, they sent me Multec2 injector connections after I explained to them that 5.3 injectors could be used on the LS1 intake. Billet fuel rail and "standoff spacers" @ 1/2" tall on the rail studs does the trick.....

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O.k....so where is the positive lead that goes back to the fuel pump? the schematic shows green/blk wire? I read Bridar's post but his car is a 968 mine is 85.5....any ideas as this is the only Porsche wire I will re-use for the entire swap?

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Post  modenas Mon Jun 28, 2010 11:02 pm

dont mean to be a pest but did you get your box from greg yet? i like to get that harness off you with that brain
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Post  xschop Sun Jul 04, 2010 10:01 am

Sorry, As of July 3rd, still no harness, VSS kit, nor Oil Filter Relocation kit from Greg....

My SSP harness is installed and done..... and I've ordered a filter relocation kit from Ebay....after that I can drive it to the exhaust shop..... I will build my own Billet VSS kit later......Very Happy

Hey Billy, do you know if this car ever had a factory alarm?

I also disconnected the Green/blk hot wire directly at the rear fuel pump with a long wire lead to read continuity of the circuit....confirmed that it goes and connects to DRIVER'S SIDE of FUSE #34....So as I suspected, you either remove fuse #34 and use a single spade to jump it OR the Green/Blk wire at the 14-pin connector ties in under the fuse panel Very Happy (which is what I did)...

For the new PCM relay, I simply added a jumper connector (ON DRIVERS'S SIDE).... Wink

The fans were easy. Just tied in to the large RED/blk and Black/red wires in the loom right next to the driver's side strut tower.....
.................No More Porsche DME/Fuel pump relay or Fan relays........Happy Independence Day!

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Last edited by xschop on Fri Apr 22, 2011 9:29 am; edited 1 time in total
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Post  modenas Sun Jul 04, 2010 1:20 pm

i dont remember it having an alarm, but look in secret places in that car, never know what ya gonna get.
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Post  xschop Mon Jul 05, 2010 9:32 am

Hey Folks, can I just stick a new PCV valve or a Filter in the rear driver's head and cap the throttle body and passenger's head PCV ports (2ea).... Or does the passenger head need to be vented?

We don't have emissions inpections here, I just want as little lines/tubes as possible....

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Post  cfgioja Mon Jul 05, 2010 10:27 am

I ran a hose from the driver rear to the back of the intake manifold where the vaccum line is and capped all the passenger and throttle body vaccums and everything ran fine for me on my '01
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Post  xschop Tue Jul 06, 2010 7:44 am

Thanks Collin another good call. I ran it like that and installed PCV1009.... It is the equivalent of what GM came up for the recall on the LS engines consuming too much oil.....Basically a mini "catch can" from what I can see as it is a hollow PCV (no check ball & spring to get clogged) with only a 0.100" hole in the bottom that doesn't let much oil splash/pass thru like the old design.... Very Happy

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Post  xschop Tue Jul 06, 2010 9:09 am

FUSE #34 and #36.........

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Just re-used the 14-pin attachment point as a mounting base for the driver's side.....And Fan relays were so convenient to splice into factory harness fan (+) leads....RED/blk & BLACK/red.....

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Passenger side got the switched block......too easy....

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Post  Admin Tue Jul 06, 2010 1:00 pm

Cut the black tape off of the relay wires that you have right up next to the relay it's self. As thing heat up the tape will start to change shape( shrink) and it will pull the connector off , maybe not now , but when you least need it to.........

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Post  xschop Tue Jul 06, 2010 1:43 pm

Will do. I have like 100 rolls of electrical tape. I tend to go overboard Very Happy

I'm still dealing with my TTwist II's acting stupid.....The hub machining on the wheel itself interferes with the wheel hub dust cap..... It's hard to get an 18" rim chucked up on the lathe especially with new rubber instaled....

Giving the caps the smackdown..... First welded the inner cap rim in three 1" draws and siliconed the inner ridge because when I lathed off the cap I don't want to get hit since it is hydroformed. So the edge that interferes with the Rim inner machining is gone. I will weld a large flat nut to screw in a slide hammer for removal....

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Last edited by xschop on Fri Apr 26, 2013 12:51 pm; edited 1 time in total
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Post  xschop Wed Jul 07, 2010 9:01 am

Has someone ran into having to put on an oil filter adapter with the oil bung M20 x 1.5. If so what filter did you go with for the V8 swap. As I understand oil filters need to match some pressure bypass mechanism within the filters?
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Post  xschop Wed Jul 07, 2010 10:58 am


This M20 x 1.5 threaded filter is dimensionally identical to the fram PH8A except it has 12 PSi relief valve....
Question is the PH8A is 8-10 PSi.......is the extra 2 PSi going to be a problem in running this with the 5.3 V8?

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Post  modenas Wed Jul 07, 2010 7:01 pm

so you get my harness yet? also did you make any tranny mounts
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Post  Luke714 Wed Jul 07, 2010 7:51 pm

Looks good! I feel bad that I can't help you too much, considering you've been helpful to me. You've got lots of great info up when it comes time to do the fuel and wiring!

What are those front control arms you're using? You can seem em in the picture of your front calipers.
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Post  modenas Wed Jul 07, 2010 8:14 pm

those are his custom, rx7 control arms!
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