Progress Thread Off to machine shop

KZGUNS

I can swing up to 11”
Jul 23, 2018
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chardon, Ohio
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.
 

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a91what

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Mod Dude
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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?
 
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KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
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

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
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
 

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a91what

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Mod Dude
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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?
 
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KZGUNS

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
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

I can swing up to 11”
Jul 23, 2018
664
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chardon, Ohio
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
 
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a91what

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Mod Dude
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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.
 

Mic B

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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

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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

I can swing up to 11”
Jul 23, 2018
664
318
73
44
chardon, Ohio
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

wonder how much it would cost to ship you a pair
Mod Dude
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Go to the 'digital tuning ' forums and learn how to turn your stuff.
quality parts go a long way.
 

CarMichael Angelo

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