LS4 / F40 swap - fieroguru (Page 83/216)
fieroguru JUN 08, 03:51 PM
There are quite a few settings/tables for DFCO

There are:
master Enable/Disable engine temps (Stock LS4 is 86F enable, 77F disable, mine is set at 493F to disable this feature while tuning).
master Enable/Disable engine RPM (Stock LS4 is 1350 rpm enable, 950 rpm disable)

Enable as well as a Disable table Vehicle Speed vs. Transmission Gear (Enable is 25 mph for all gears except 1st = 15 mph. Disable is 22 mph for all gears except 1st = 12 mph)
Enable/Disable Cylinder Airmass (g/cyl) vs. RPM (Enable is 0.09 for all RPMs, and Disable is 0.14)
Enable/Disable TPS vs RPM (Enable is 0.10 for all RPMs, Disable is 0.20 for all RPMs)
DFCO entry Spark adjustments and DFCO exit spark adjustments. (Entry is 10.0 degrees for all RPM's, Disable is 0 below 3000, 2 @ 3072, 3 @ 3584, 4 @ 4096, 6 @ 4608, 7 @ 5120, 8 @ 5632, 9 @ 6144, 10 @ 6656, 12 @ 7186, 13 @ 7680, 14 @ 8192

Cylinder Airmass & RPM are also the scales for the main timing table. The lowest value is .08 g/cyl with the 2nd lowest being .12 g/cyl. The highest on the table is 1.36 g/cyl, but at WOT with my LS4 I am seeing Airmass in the .76 to .80 range for reference.

fieroguru JUN 08, 04:05 PM
My sail windows came in from Kahines and they look good! I have been a fastback guy for years and prefer the clean/smooth transition between the window to the sail panels vs. having the bulky notchie transition.

Panels:



The ugly section of the car that needs covering:


3M molding tape:



One place of interference. The top of the 1/4 panel sticks up past the top of the tape surface. I used a hand held grinder to bevel the top of this panel (it is hidden behind the sail panel) and did add a 2nd layer of 3M tape to the bottom 2" of the window so the edge would be held with tape and the gap where it transitioned between 1 layer and 2 layers of 3M tape would happen mid window.


Installed:


While working on the side windows, I also installed the decal for the rear decklid:


I have 2 more of these and thought about placing them on the sail windows, but for now I am going to leave them off. The car's exhaust gives it enough "presence" and I don't want the badging to be too "look at me". Understated looks with overstated exhaust note...

[This message has been edited by fieroguru (edited 06-08-2013).]

Kemp3 JUN 08, 05:12 PM

quote
Originally posted by fieroguru:

There are quite a few settings/tables for DFCO

There are:
master Enable/Disable engine temps (Stock LS4 is 86F enable, 77F disable, mine is set at 493F to disable this feature while tuning).
master Enable/Disable engine RPM (Stock LS4 is 1350 rpm enable, 950 rpm disable)

Enable as well as a Disable table Vehicle Speed vs. Transmission Gear (Enable is 25 mph for all gears except 1st = 15 mph. Disable is 22 mph for all gears except 1st = 12 mph)
Enable/Disable Cylinder Airmass (g/cyl) vs. RPM (Enable is 0.09 for all RPMs, and Disable is 0.14)
Enable/Disable TPS vs RPM (Enable is 0.10 for all RPMs, Disable is 0.20 for all RPMs)
DFCO entry Spark adjustments and DFCO exit spark adjustments. (Entry is 10.0 degrees for all RPM's, Disable is 0 below 3000, 2 @ 3072, 3 @ 3584, 4 @ 4096, 6 @ 4608, 7 @ 5120, 8 @ 5632, 9 @ 6144, 10 @ 6656, 12 @ 7186, 13 @ 7680, 14 @ 8192

Cylinder Airmass & RPM are also the scales for the main timing table. The lowest value is .08 g/cyl with the 2nd lowest being .12 g/cyl. The highest on the table is 1.36 g/cyl, but at WOT with my LS4 I am seeing Airmass in the .76 to .80 range for reference.



that's good info thank you , since your not using it when or if you enable it you may see a little bump in MPG.

-Kemp
fieroguru JUN 09, 04:52 PM
The car finally has every exterior panel/trim piece installed... Put the PS rocker panel back on as well the missing sections of round molding. The exterior is pretty much done with the exception of buffing the old paint to make it look as good as possible until I find time/$$ to get it painted.

I also fabbed up the passenger side seat mounts. Like the driver side, they are 16ga sheet metal bent into a tapered "C" shape so I could pickup the stock fiero seat studs and mount the C4 vette seats to the top side of the "C". The lower seat cushion comes out for mounting, so that makes it easy, especially since the seats are mounted in a fixed position vs. on sliders. Notice how dusty the PS seat is vs. the DS... I need to clean it or take some buddies for a ride.



While I was painting, I went ahead and painted the Laptop stand, once it was dry installed it as well as the rest of the console interior stuff:



Also went ahead and installed the aluminum faces for the pedals. These were originally installed on the Blue SBC car (so they say Fiero GT). They need a cleaning as well, but when you drive the car daily stuff will get dirty.


Now I am on the hunt for a non-sunroof headliner. I made a posting in the Mall, but if I can't find one used, I will probably buy a fiberglass version from Archie. I am not planning on putting the A and B pillar trim back in until I have the head liner...
fieroguru JUN 12, 10:30 PM
Snapped the belt tensioner today... been pretty easy on the car the last several days and was just starting/idling/stopping the engine doing some more idle refinement on the tune when I hear a snap/crash/cling type sound when I turned the key... This was the cause:



Already have a new tensioner installed... I will watch it a little closer for the next month of two to see if it shows any signs of a similar type failure.
Trinten JUN 12, 11:47 PM
Ouch - glad it didn't bust up anything else when it all broke loose!
Jefrysuko JUN 13, 01:23 AM

quote
Originally posted by fieroguru:

Snapped the belt tensioner today...



Did it cut the belt too?

No modifications to the tensioner correct, just the front housing it mounts to? Gotta love using stock parts from other applications with high availability in the parts stores.
fieroguru JUN 13, 06:22 AM

quote
Originally posted by Trinten:

Ouch - glad it didn't bust up anything else when it all broke loose!



Yeah it probably would have been ugly if it had let loose at 7K RPM and 110 MPH...



quote
Originally posted by Jefrysuko:
Did it cut the belt too?

No modifications to the tensioner correct, just the front housing it mounts to? Gotta love using stock parts from other applications with high availability in the parts stores.



The belt got slit, but I suspect it happened after the tension broke and the belt wrapped around something.

Yes, the tensioner is bone stock from a V6 camaro and the parts stores keep them in stock, so I just needed to make a trip to town and drop $35 on a new one.

[This message has been edited by fieroguru (edited 06-13-2013).]

tonycampbell86gt JUN 14, 06:19 PM
I'm pretty sure it was you I passed earlier today, on my way to Danville. Car looked good!

Tony
fieroguru JUN 14, 07:19 PM

quote
Originally posted by tonycampbell86gt:

I'm pretty sure it was you I passed earlier today, on my way to Danville. Car looked good!

Tony



Probably was. I have been driving the car to work daily. I still haven't done a good cleaning/waxing on it yet, so it is pretty dirty at the moment.
Next time you are in the area you will have to stop by and go for a ride.