I am hoping to be getting my engine back from the machine shop here in the next week or two. It is a high compression N/A 408. Looking for some help getting an intial tune built to get it going with. In esence looking for someone willing to coach me on this. I do have some time going through the software, playing with the scanner, and logging.

 

Bump - TTT

 

What exactly do you need help with? I would first start by posting what you have in the 408. Injectors, cam, heads, intake, ect. Obviously those determine what needs to be changed in the initial start up tune.

 

There is quite a bit that goes into it, even just a base tune. Are you putting a tune on it just to get it down to a dyno shop?

 

The 408 is a LQ4 base. Forged 4"stroke crank, forged rods, forged weisco +5 dome pistons. MLS .051 gaskets. Stock 317 heads with mild valve job. Cam is 224/228, .612/.612, 112 LSA, 108 ICL. Edelbrock Pro-Flo w/ 35# pico injectors. TSP longtubes.

I found a stock 6.0 tune w/ a 60e segment swap in the tune repository. I can't dyno tune it because the closest dyno is more than 200 miles away.

 

The most important thing is correct injector data.

 

Edelbrock repackages and resales Magneti Marelli High Z pico injectors. The ones I have are the IWP006 injectors - link!

 

Thats the first thing that needs to be changed. From there its just the basic stuff. Add fuel to cover a possible lean mixture, add airflow to the raf to get it to idle. I would add a little idle timing in there and cut the idle over/underspeed tables in half. Once it is running you can quickly see what needs tweaks with the scanner. Don't fire it up and take it for a test drive or anything like that.

 

Thats the stuff I need help with.i just dont know the process well enough to know where to go to change what us needed.

 

I have some resource info coming in the mail this week (hopefully).

What is the injector data that is needed?