LS4 / F40 swap - fieroguru (Page 49/216)
KissMySSFiero SEP 12, 06:02 AM
Nice to see progress again. I'll be back in the states in December and hope to pick up an LS4 around then.

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SSFiero@Aol.com 87 Gt-5spd-62k miles.

fieroguru SEP 19, 07:41 PM
Haven't had much free time lately, but some more parts came in and did complete a few small projects for the swap.

http://www.siliconeintakes.com sent me the TB to MAF reducer, a 4" elbow for the filter, and several stainless t bar clamps.



http://www.saxonpc.com/airflow-products.html supplied a new mesh screen for the MAF. It is has larger holes for more flow, but is longer to help align the air stream before the MAF.
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The 4" diameter stainless exhaust tube arrived a couple weeks back, so I cut it to the needed shape for the heat shield between the muffler and the trunk and welded it to the muffler:



Then I started to play around with the routing of the plug wires. I mocked each side up slightly different as I determine which one I like looking at. Here is the front side. The wires are stacked on top of each other and remain stacked while they meet up with the coils:


The rear side is slightly different in that the wires pretty much lay over as they turn to the coils. This setup ever so slightly covers the corner of the valve cover.


The last thing I messed with was the plastic air intake tube. I cut off the OEM expansion section and added the 90 degree elbow. Here is an old mockup pick, notice I just taped the MAF to the TB and the expansion portion was fully collapsed and wrapped with electrical tape.


Here it is again with the proper silicone reducer and the elbow:
fieroguru SEP 22, 03:40 PM
Small steps...

Today I finished up building the plug wires:




Also ordered a 3" 45 degree bend so I can add a heat shield between the front manifold and the AC lines here:
fieroguru SEP 23, 12:52 PM
Did a little more work on the harness. The rear half of the engine harness is loomed, added the connector for the DOD circuit, installed the shrink tube on the oil pressure switch, and started to connect the MAP sensor with the front Injector harness. I seem to have lost the original 5 wire maf harness, but it might have ended up in the large box of connectors...
fieroguru SEP 26, 06:09 PM
The stainless bend came in yesterday, so today I knocked out the heat shield for the front manifold to help keep the heat off the AC lines and off the harness that will run along the block.



fieroguru SEP 29, 02:35 PM
The PVC/Catch Can install is now done as well (might do something different with the rear hose running along the valve cover). Once I found the right place to mount the catch can, I fabbed up a bracket to hold it solid to the transmission:




The fresh air source was a little bit of a challenge. The stock LS4 has the clean air source for the PCV system pulled from the inlet tract between the MAF and the TB, but this OEM piece will not work with the larger MAF and LS2 TB:


Since I am using a silicone sleeve between the MAF and Throttlebody, I needed to drill a hole and put in a hose barb fitting. I ended up taking a brass 90 fitting, found a washer that would slide past the threads and another one that didn't. Then I tapped the ID of the washer so it would become the nut for the back side. I used some RTV (between the washer and silicone sleeve) and loctite (on the threads) to ensure the washer won't come free and be ingested by the engine.




I am thinking about either making an aluminum hard line for the hose between the rear valve cover and the hose barb on the silicone sleeve or running some brake line inside the hose so I can form it to the precise shape I want (needs to run parallel with the valve cover).


Trinten SEP 29, 05:46 PM
looking awesome man... I wish I had your skills! (and a place to work on the car)
Bloozberry SEP 30, 08:04 AM
I like the catch can. I must've missed where you got it from. Is there some kind of sight gauge on it to let you know it's full?
fieroguru SEP 30, 08:22 AM

quote
Originally posted by Bloozberry:

I like the catch can. I must've missed where you got it from. Is there some kind of sight gauge on it to let you know it's full?



It came from eBay for under $50. It does have some fittings for the side and a section of poly tube so you can see how full it is, but it would be on the backside and not visible where the can is mounted and the direction the lines coming out the top. I need to plug the original holes and drill/tap 2 new ones on the outer edge so I can see the level through the wheel well.
fieroguru OCT 13, 07:23 PM
Did a little more on the harness. Everything on the rear and top side is loomed down to the starter. Still need to loom up the front side (alternator, AC, Knock, Oil Pressure), then I can start the termination process at the ECM, then install the engine for all the terminations inside the car (500, 203, Fuel and AC relays, DBW pedal, etc).







Also, the radiator arrived: