Progress Thread She’s a runner

[KZGUNS]

Ok I got everything on now. One idler I need to move out about an 1/8” but nothing tried to walk off the pulleys. I also went with a contour fan and since I already had a derale pwm controller I used it but will eventually use the ms. Still need to make a mount for the coolant tank and remount the breather tank. I also noticed when blipping the throttle the rpm would dip way low 450 ish stumble then recover. Not sure what did that would cause that but I’ll see how it act tomorrow or this weekend, it was 90°+ and high humidity so not sure if that played a part. What do you think @a91what ? Anything I should look at or tweak.

 

[a91what]

Plot the idle pwm% during the stumble also note the timing. Does this happen with a small throttle blip only, does doing a more exaggerated throttle movement cause the idle valve to open further?

 

[KZGUNS]

Plot the idle pwm% during the stumble also note the timing. Does this happen with a small throttle blip only, does doing a more exaggerated throttle movement cause the idle valve to open further?

Thanks. I’ll check it out and datalog as well.
it was definitely with smaller blips. I’ll see what it does with a bigger blip.

 

[KZGUNS]

Just about buttoned up. I ended up getting a little bigger belt since the other one was just big enough and they had a fleet runner so now I’m like the cool kids Lol. So I needed a way to mount my coolant tank and I don’t have an automatic sooooo... hack or crafty? Drilled and tapped plugs and mounted the tank to that. Still need to investigate the stumble when throttle is blipped. I did notice the timing dip to 15 ish then adaptive idle timing pops it to 20 but it seems to take its time doing so. When it’s blipped to 3k+ it doesn’t seem to drop rpm as low. I’ll mess with it this weekend and get a datalog

 

[a91what]

that seems like it may be the dashpot adder not doing its job, once the idle settles in does the pwm% go up from the original commanded? With the pulley change it may have altered the load on the engine just enough to upset the idle settings. post the datalog for me so I can take a look and see what it is doing. Now that you have the belt setup done I wonder if it will make a difference in the boost level?

 

[KZGUNS]

that seems like it may be the dashpot adder not doing its job, once the idle settles in does the pwm% go up from the original commanded? With the pulley change it may have altered the load on the engine just enough to upset the idle settings. post the datalog for me so I can take a look and see what it is doing. Now that you have the belt setup done I wonder if it will make a difference in the boost level?

I will get a datalog this weekend. Definitely a load difference since it’s not swinging the fan around as well. It crossed my mind that the load difference might be the issue but thought nah it couldn’t be that much different.

 

[KZGUNS]

@a91what here is the tune and data log

 

[KZGUNS]

Hmmm pulled a couple plugs and they look rich and possibly fouled. Pulled on front pass and drive side. Track day was the last time I drove it. I think I’ll grab new plugs

 

[a91what]

Water meth should be cleaning the plugs... maybe take a look at the afr during warmup.
At wot with meth you could lean it out to 12ish easy.

 

[KZGUNS]

Water meth should be cleaning the plugs... maybe take a look at the afr during warmup.
At wot with meth you could lean it out to 12ish easy.

ya im thinking a bit rich at idle. gonna lean it out a bit and see.

 

[KZGUNS]

Well new plugs didn’t help.

 

[a91what]

I just got home from work, give me a few and I'll see what's up.

 

[KZGUNS]

Went for quick spirited drive and now it’s not doing as bad.

 

[KZGUNS]

@a91what thanks for the help last night and as always the car talk and ideas. I got it pretty good now. Doesn’t dip below target and comes down to target nicely.

 

[Mic B]

I would live to ask u a few questions. MicroSquirt my mustang runs horrible motor brand new. Runs very rich but afr says 20. I bought cheap 42 lb injectors could this be the issue

 

[Mic B]

I would live to ask u a few questions. MicroSquirt my mustang runs horrible motor brand new. Runs very rich but afr says 20. I bought cheap 42 lb injectors could this be the issue

Smokes black plugs r black. I haven’t installed wide band yet. When distributor is at stock mark my timing light says 52 advanced. Oh my cam is retarded 6 degrees. Everything is tfs

 

[KZGUNS]

Smokes black plugs r black. I haven’t installed wide band yet. When distributor is at stock mark my timing light says 52 advanced. Oh my cam is retarded 6 degrees. Everything is tfs

@a91what is your guy! I will say I had issues way back with cheap or unknown injectors.

 

[General karthief]

Go to the 'digital tuning ' forums and learn how to turn your stuff.
quality parts go a long way.

Digital Self-tuning Forum

This forum is for those members building or tuning their own vehicles. What you will NOT find in this forum is information concerning hand-held tuners containing off-the-shelf or "canned tunes".

www.stangnet.com

 

[a91what]

He pm'ed me I will get him straightened out.

 

[CarMichael Angelo]

Go to the 'digital tuning ' forums and learn how to turn your stuff.
quality parts go a long way.

Digital Self-tuning Forum

This forum is for those members building or tuning their own vehicles. What you will NOT find in this forum is information concerning hand-held tuners containing off-the-shelf or "canned tunes".

www.stangnet.com

Why does he have to go to the “digital tuning“ forums to learn how to turn his stuff?

Why does his stuff have to turn?....What if he want to keep his stuff straight?

You don’t make no sense.