93 foxbody 347 stroker megasquirt 2 pnp initial timing set up?? advice

mjhern

New Member
May 15, 2020
7
0
1
39
San Antonio tx
Hi i have a 93 mustang gt, 347 stroker, 30lb injectors, edlebrock e-street 205 heads, comp cam stage 5, msd 6al ignition, msd coil, and msd billet distributor. Car timing was initially set at 15 degrees, car runs good with the bama sct tune before I installed the megasquirt 2 pnp foxbody from lmr, and I also got the innovate wide band sensor on the 21 pin connector.
I also set the AFR to 14.7.

Car starts but the rpms stay at 2000 rpms. I set the timing to fixed ignition 20* and when I use the trigger wizard to get to target 20* on the crank Im at +42.5 offset degrees angle. Should I set the timing in fixed ignition 20* and set the offset to 10*. Then adjust the distributor until I see 20* on the crank? Im just trying to get advice to just get it running and idling. There is a shop in San Antonio that tunes megasquirts called Chadata tuning and next appt is 3 weeks out. Im am just trying to see if I got a faulty unit? Im located south of san antonio. Any advice would be greatly appreciated. Thanks
 
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mjhern

New Member
May 15, 2020
7
0
1
39
San Antonio tx
Hi i have a 93 mustang gt, 347 stroker, 30lb injectors, edlebrock e-street 205 heads, comp cam stage 5, msd 6al ignition, msd coil, and msd billet distributor. Car timing was initially set at 15 degrees, car runs good with the bama sct tune before I installed the megasquirt 2 pnp foxbody from lmr, and I also got the innovate wide band sensor on the 21 pin connector.
I also set the AFR to 14.7.

Car starts but the rpms stay at 2000 rpms. I set the timing to fixed ignition 20* and when I use the trigger wizard to get to target 20* on the crank Im at +42.5 offset degrees angle. Should I set the timing in fixed ignition 20* and set the offset to 10*. Then adjust the distributor until I see 20* on the crank? Im just trying to get advice to just get it running and idling. There is a shop in San Antonio that tunes megasquirts called Chadata tuning and next appt is 3 weeks out. Im am just trying to see if I got a faulty unit? Im located south of san antonio. Any advice would be greatly appreciated. Thanks
Well moved the distributor, rpms are at 1500 rpms today, I set the timing to 20 degrees on the crank. It only wants to run with trigger offset to set to 20*. But trigger wizard say advance is at 15* even though crank is at 20*. So what does that mean? lmk thanks
 

a91what

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Mod Dude
Apr 6, 2011
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The trigger angle offset is the mechanical advance in the distributor, set it to 10* lock the timing at 20 then adjust the distributor to get 20* on the balancer.
with the angle offset at 20* that is the lowest value the timing can be set at, this can cause rotor phasing issues.
 

mjhern

New Member
May 15, 2020
7
0
1
39
San Antonio tx
The trigger angle offset is the mechanical advance in the distributor, set it to 10* lock the timing at 20 then adjust the distributor to get 20* on the balancer.
with the angle offset at 20* that is the lowest value the timing can be set at, this can cause rotor phasing issues.
Ok thanks a lot. That's what I was trying to do. I will try again today. Tech support was trying to get me to pay $120 an hour to a guy named Brett in Dallas to remote access tune my car that works for them. I went thru all the idle settings and changed car to closed loop, adjusted idle for a target 890 rpms. And went thru enrichment as well. Added knock sensor. Read the manual as well. Tech support has not even replied to email. Thanks very much a91what
 
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