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Discussion Starter · #1 ·
ok i recently bought the msd knock meter. i was just wondering if anyone else has installed one of these. in the instructions it says that you need to drill a 1/4 inch hole or find one that is already in the block. i was just wondering if anyone found a 1/4 inch hole or do i need to drill and tap the hole.

thanks
 

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there is a coolant drain plug in the block above the driver's side axle bracket that bolts to the block. It should be a 14mm drain plug. Just pop that out, drain the coolant, and screw it in. Then fill your coolant up again and you're good to go.
 

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Here's where I installed mine - removed a bolt/plug and screwed it in. I chose to install it here since it's toward the "back" of the motor - nearer the 5/6 cylinders since those are furthest from the oil pump and what it more likely to cause problems before the cylinders closer to the pump.

EricB

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Discussion Starter · #4 ·
thanks alot for the help guys
 

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Hey Eric,
How well does the MSD work? I have a
'95 VR4 so I can't use a data logger. Any
info would be very helpful.
Thanks
Wayne
 

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They are super sensitive.If its set at full sensitvity then light lifter tick will set it off.If you have bad motor mounts,just a bit then you will need to start with the sensitivity about 1/2 gain.But once you figure out what is real and what is B.S. you can dial it in and leave it alone.I have never had it hit red alert.I beleive that it is like 2greens, 2 orange and 2 red.With full sensitivity and no alky.10:1 compression and 8psi I managed the 2nd orange light and the first audible response.I took the turbo hoses off and let them vent to the air and installed the NA mas and piping.I hit the 1st. orange light with no audible alarm at the exact same shift point,RPM and gear.From then I figured motor mounts.I reduced the sensitivity still running as a NA until it didn't make a peep.Then I hooked up all the turbo stuff and left the Sensitivity where it was at.Ran it like hell and every now and then the first green led would come on like a brief flash which I figured was probably small amount of knock or just the motor mounts being stressed from the extra H.P. I left it alone I can live with it.My EGT and A/F are the best tools I have for monitoring.I don't think I could live without a EGT gauge.
 

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Thanks Mike!
Wayne
 

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Hearin all this makes me wanna thank god for dataloggers and first gens :D
 

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Trevor,
Do you just go by EGT and O2 readings? I
would like to at least monitor timing fluctuations
but not at the expense/headache of an AEM.
The car is a street car first. I don't need to push
the envelope....Just nudge it a wee bit.:D
Thanks
Wayne
 

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EGT's, O2's, my ear, trap speeds, & butt meter. The MSD sits in my center console with the sensitivity & volume turned all the way down. I tried to tune with it but the reading seems to be anything but accurate.
 

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Thanks Trevor. At least there are a few of
you who have done this with success.
Thanks
Wayne
 
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