LS4 / F40 swap - fieroguru (Page 192/216)
Rickady88GT OCT 07, 12:21 PM
Looks good man, looks good.
I need to look over this thread again, you have done some work that gave me some ideas.
Thanks
dskebo OCT 07, 12:51 PM
have you tried to start it yet?
fieroguru OCT 23, 07:01 AM
Car started about a week ago and I have been working on the electrical check out and base tune.
So far my count is 3 bad brand new sensors...
At this point the car has probably ran about 2-3 hours. With the longest stint about 30 minutes.
Spent a fair amount of time with the scanner adding channels, creating custom PIDs, adding more tables, and adjusting the ranges on the gauges.
The wideband is installed and logging through the ECM and the idle tune has been roughed in.
The clutch engages and disengages and the water pump appears to be keeping the engine cool at idle.
Even with the dual mufflers (3.5" and 3" open path perf tube), the car is still on the loud side, but part of that could be the car in the garage.

I still need to wire up the monitoring gauges inside the car and reassemble the rear suspension, align it, and start some road tuning.

I want to get the tune dialed in NA on gas, then enable flex fuel and dial in that portion, then install a larger spring in the wastegate and start building some boost.
La fiera OCT 26, 10:35 PM
That is awesome Guru! Can't wait to hear it wail!
qwikgta OCT 28, 06:52 PM
I know you already mentioned it, but just WOW, this is amazing. My LS3 swap is full of crap here. Looks great.

fieroguru OCT 29, 08:40 AM

quote
Originally posted by La fiera:
That is awesome Guru! Can't wait to hear it wail!



Thanks! We will see how the day goes and if I get some idle and some video of it revving.


quote
Originally posted by qwikgta:
I know you already mentioned it, but just WOW, this is amazing. My LS3 swap is full of crap here. Looks great.



Thanks!
To accomplish the look in that particular area probably added 2 years to the upgrade. I probably had 7+ solutions that in the end I wasn't happy with, so they were scrapped and I started over. To me it was worth the effort to raise the bar on a clutter free 550+ whp LS swap.

Rear suspension and brakes are installed. Car is on blocks and ready for the alignment. I still need to wire up some of the gauges to the temp gauge panel, and then the car should move out of the garage under its own power today... might even makes a spin around the neighborhood.
fieroguru OCT 29, 08:15 PM
Sara had other plans for me today... supposed to be in the 20's tonight, so the Murano needed its spot in the garage back. This means I had to do a fair amount of cleaning up the garage. It was also raining most of the day, so didn't want to take the car out.

I did get the alignment done, wheels on, axle nuts torqued, new dyna batt battery installed, and some temporary sway bar end links. It appears I have misplaced my rear zero lash sway bar links, so I ordered a new set from Rodney.

Here is how the car sits now with room for the Murano:


The console is out of the car, but the dash is installed. So I fabbed this temp gauge bracket that will mount under the center vents on the dash. From left to right: Boost, Fuel Pressure, EGT, 3-way pressure - Intake tube, exhaust manifold, exhaust post turbo.


Here is what I am thinking will be the more final gauge layout. I am moving the radio to the aux gauge location and installing 3 gauges down in the radio location. The rest will be on a panel that will bolt to the dash using the pre-existing holes for the defrost/decklid release panel (my car does not have either). Not sure if there will be 2 more gauges, or if I will use the lower section for boost control and/or some switches.


Here is the engine bay pic with the struts installed:
fieroguru NOV 05, 07:49 PM
After a little more than 4 years, the LS4/F40 Fiero is back on the road and moving under its own power! I have driven it about 25 or so miles, but haven't ventured more than about 3-4 miles from home yet.

The lower range of VE as well as MAF have been tuned within about 5%. Still need to work on the idle spark and air flow as well as some full throttle runs with the light wastegate spring to keep it out of boost.

Idle and revving:


Walk around and engine bay video:
Trinten NOV 05, 08:26 PM
Congratulations man! That is awesome!

Does that mean you're going to be aiming to be on the Horsepower Tours again yearly?
fieroguru NOV 05, 08:43 PM
Thanks!

Yes, if can keep from breaking it, I will be doing the HRPT and LS Fest to start. Might take it to a few other places. It was built to drive, so it will get a lot of miles on it!

[This message has been edited by fieroguru (edited 11-05-2023).]