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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86 Porsche 944T LS1 swap begins

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86 Porsche 944T LS1 swap begins Empty 86 Porsche 944T LS1 swap begins

Post  smkn951 on Tue Sep 17, 2019 12:54 pm

Hello everyone,
I would like to first introduce myself. My name is Carl, i've been lurking around here for a short time and i must say, this community has a wealth of knowledge.
I have an 86 944t that i restored. I got it as a retirement present from the wife in hopes that i would stay busy and out of trouble.....Busy i was for 1-1/2 years in working diligently in getting this car up and running to be my Daily driver.
The car started of as white with numerous body fillers, blown head gasket, leaking fluids from all components, no A/C, no heat, no lights working, dry rotted interior, messed up shifter, bad drive shafts, unserviceable clutch, worn brakes.....OMG it truly was a project. So busy....I was, until YOU guys came along...now I'm in trouble...LS SWAP!!really? well it was son's fault for planting the seed.....
this is the before and after restoration.[You must be registered and logged in to see this link.]
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smkn951
smkn951

Posts : 12
Join date : 2019-02-19
Location : El Paso Texas

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86 Porsche 944T LS1 swap begins Empty Re: 86 Porsche 944T LS1 swap begins

Post  smkn951 on Tue Sep 17, 2019 1:15 pm

I picked a complete running engine for the swap
04 Pontiac GTO $800.00, I had a deal because i helped pull it out. It came with LS6 intake already (oh yeah!!, i heard this is good?)
replaced the 241 heads with 243s for $400.00 (valves came with it and bolts)
replaced cam with torquer v2 kit. (springs, seals, pushrods) apprx $700 for the kit
went and replaced timing chain with an ls2 chain and added a chain dampener $150
installed HV oil pump (cant remember the price)
replaced cam shaft bearings, rod bearings and main bearing and piston rings apprx $150
ARP connecting rod bolts
Oil pan from TPC
replaced lifter with ls7 lifters and trays $120
head gasket, water pump gasket, timing cover and rear cover gaskets and seals, oil pan gasket[You must be registered and logged in to see this link.]

thats all so far what i've done to the engine.
Pease let me know if theres any (while it's out) to do.

smkn951
smkn951

Posts : 12
Join date : 2019-02-19
Location : El Paso Texas

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86 Porsche 944T LS1 swap begins Empty maybe getting ahead of myself

Post  smkn951 on Wed Sep 18, 2019 1:26 pm

Hello again everyone,
i have the original wiring harness and pc for the car along with the fuse box and vats module.
i will be rebuilding the harness myself (cleaning it up a bit)
I would like to send of the computer to be programmed and checked.
is there a list somewhere what all needs to be done for the conversion programming?
I would like to run A/C and two speed fan so far....
do i need specifics on what i've done to the engine so it can have a base tune?
do i just plug and play and have the dyno shop program on the fly?
will it run without any programming enough to drive to the shop?
thanks everyone
smkn951
smkn951

Posts : 12
Join date : 2019-02-19
Location : El Paso Texas

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86 Porsche 944T LS1 swap begins Empty Re: 86 Porsche 944T LS1 swap begins

Post  murrayg on Wed Sep 18, 2019 2:35 pm

Car looks great! Send the GM ECU off to this guy for a "mail order tune".

[You must be registered and logged in to see this link.]

It's not as good as a full dyno tune, but will allow you to drive the car and work the bugs out until it's "dyno time"!

murrayg

Posts : 87
Join date : 2012-12-15

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86 Porsche 944T LS1 swap begins Empty harness problem

Post  smkn951 on Thu Sep 26, 2019 7:28 pm

looking at the wiring harness......it is toally different from what is described on LT1Swap site. theres a body control module connected to it... the starter wires are on a different harness...it's just a total mess. i want to keep the a/c, 2 speed fan...but its on the bcm harness. can this be put in the ecm? theres a VSS low/ high signal on green connector pins 20/ 21, do i need these 2? theres also a VSS signal pin 50. is this the only one needed?i'm so confused...any words of advise and routes to take are greatly appreciated.
thanks
smkn951
smkn951

Posts : 12
Join date : 2019-02-19
Location : El Paso Texas

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86 Porsche 944T LS1 swap begins Empty Re: 86 Porsche 944T LS1 swap begins

Post  Midevil1981 on Fri Oct 11, 2019 3:57 pm

It is a lot to go thru. I am in the middle of my swap as well. This is what I have learned and please anyone correct me if I'm wrong. Pins 20/21 go to the vss(vehicle speed sensor) which is an option to add. Some dont use it, but I think most do. It is a sensor on the axle in the back of the car. It can b sourced out or u can buy a kit from tpc or renegade. The single pin 50 is for a digital speedometer. U will have to tap into the cars working for a couple wires. The key hot, the starter, and the fuel pump. If u look at the wiki manual it goes thru a lot of this stuff. Hope this helps

Midevil1981

Posts : 3
Join date : 2017-04-26

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86 Porsche 944T LS1 swap begins Empty Re: 86 Porsche 944T LS1 swap begins

Post  smkn951 on Thu Dec 05, 2019 4:38 pm

Is it necessary to remove the old pilot bearing from the crank before installing the tpc pilot bearing adapter and bearing?
smkn951
smkn951

Posts : 12
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Location : El Paso Texas

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86 Porsche 944T LS1 swap begins Empty Re: 86 Porsche 944T LS1 swap begins

Post  smkn951 on Thu Dec 05, 2019 11:12 pm

found the answer...removal of the pilot bearing isn't necessary from what i see. The pilot bearing adapter sits in front of it flushed. whew..unless of course theres others that may shed more light into what i just read.
thanks.
smkn951
smkn951

Posts : 12
Join date : 2019-02-19
Location : El Paso Texas

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86 Porsche 944T LS1 swap begins Empty Pilot Bearing Replacement

Post  Raymond-P on Sat Dec 07, 2019 11:25 pm

Carl,

Congrats on your decision to do an LS swap.  Very exciting!  I've been at it for sometime now and I'm about to install the LS finally.

My thread covers replacement of the pilot bearing in detail if you want to check it out.


Last edited by Raymond-P on Fri Jan 03, 2020 9:50 pm; edited 1 time in total (Reason for editing : Removed incorrect text.)
Raymond-P
Raymond-P

Posts : 76
Join date : 2013-06-29
Age : 64
Location : Beaver, PA

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86 Porsche 944T LS1 swap begins Empty pb adapter install

Post  smkn951 on Tue Dec 10, 2019 12:04 am

Thanks Ray, I saw your PB install. do you happen to have the measurement on how far it sticks out?
i referenced your pic Ray, i just marked it with a yellow line.
thanks
Carl[You must be registered and logged in to see this image.]


Last edited by smkn951 on Tue Dec 10, 2019 12:22 am; edited 1 time in total (Reason for editing : added pic)
smkn951
smkn951

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Location : El Paso Texas

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86 Porsche 944T LS1 swap begins Empty Re: 86 Porsche 944T LS1 swap begins

Post  Raymond-P on Wed Dec 11, 2019 11:31 pm

My apologies!   After reading your question and revisiting my files, I realize now that my previous post statement was incorrect in that the TPC kit does indeed include a new Porsche pilot bearing and an LS/Porsche pilot bearing "adapter" just as you described.  I pressed the two together early and forgot that step.

I did not measure the adapter depth but my Greg Sloan Conversion Manual says it is 1.00" thick.  The adapter is to be fully seated in the crank and the Porsche PB is to be fully seated in the adapter. Remember that you must take care installing the adapter as you do not want to impact the LS crank at the risk of damaging the main bearing seals.

The seat depth of the adapter is a function of the crack shaft flange so you have no control over that.  I dug up the schematics below that should help you understand how it all fits together.  If you have sufficient clearance between the rear of the adapter and the hub of the clutch plate to avoid contact, you should be good to go.  You will have to install the flywheel to tell for sure.  If you don't have sufficient clearance, perhaps the adapter is not seated fully.  From your PM it seems that your PB is seated OK, but it's best to measure.

The pic below is the stock LS configuration showing the crankshaft oil gallery plug.  From this schematic it appears the old LS PB could have remained since it is set so deep in the crack flange.

[You must be registered and logged in to see this link.]

The diagram below is from my Greg Sloan conversion manual and illustrates the machining dimensions for the PB adapter.

[You must be registered and logged in to see this link.]

The final diagram below is from XSChop and provides all the clearances needed from the crank to the Torque Tube and everything in between.

[You must be registered and logged in to see this link.]

I just ordered new torque tube bearings and will be removing my TT soon.  I plan to do a test fit with my LS while it's still on the stand just to make sure everything fits correctly.

Provided that all goes well, I will likely connect the reconstructed TT to the LS and install the assembly as one unit.  By then I should have the old 944S trans-axle out as well so it should be pretty easy.  Time will tell!

I hope all this helps.
Raymond-P
Raymond-P

Posts : 76
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Age : 64
Location : Beaver, PA

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86 Porsche 944T LS1 swap begins Empty pb adapter clearance

Post  smkn951 on Thu Dec 12, 2019 6:44 pm

Hello ray,
thanks for the reply.
i see from the diagram that the clearance forward is .435. I measured mine and it's at .42. the original pilot bearing is still in and does not contact the pb adapter.
thank you again.
now onto the wiring....i'm rebuilding the original harness and will send of the ecm to be reprogrammed. bought the original harness with ecm from the guy i bought the engine from for 250. reprogramming and headaches are about to commence.
I have been reading up on the holley terminator X and seems like it'll prevent me from loosing my hair.
Anyone have them installed on their swap?
TIA
Carl
smkn951
smkn951

Posts : 12
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Location : El Paso Texas

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