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
 
  • Sponsors(?)


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

SendMeUrDataLog
Mod Dude
Apr 6, 2011
10,135
6,037
204
31
Hillsborough county
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
 
Thread starter Similar threads Forum Replies Date
E SOLD 1990 Mustang Notchback 347 Stroker Fox Body Mustangs For Sale (1979-93) 2
T Engine 1993 Freshly Buily 347 Seized? Fox 5.0 Mustang Tech 13
C Over Heating Problems, Need Help! Fox 5.0 Mustang Tech 4
86stroker347 Electrical Question 86 Gt Fox 5.0 Mustang Tech 5
A Car starts but dies Fox 5.0 Mustang Tech 2
8 Coolant leak Fox 5.0 Mustang Tech 4
spiegs throttle cable removal and install Fox 5.0 Mustang Tech 8
C Engine Gray smoke from exhaust. Smells like gas. Fox 5.0 Mustang Tech 15
1hot87gt Love my FoxBody 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 11
K New Member introduction 1990 Foxbody Hatchback The Welcome Wagon 1
C Foxbody with no start issues Fox 5.0 Mustang Tech 5
E Best tires for 88 Foxbody GT? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 10
K Is my foxbody cammed? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 11
White85fox New from Idaho The Welcome Wagon 3
Foxslider SOLD WTB: 87-93 stock foxbody axle out of 8.8. Drivetrain Parts 0
S Fuel Explorer Throttle Body.....What Years Will Work On Foxbody Fox 5.0 Mustang Tech 5
12Pack WTB/Trade Wtb foxbody, FL Fox Body Mustangs For Sale (1979-93) 0
S Motor Mounts 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 13
S Old Foxbody owner looking to own again. The Welcome Wagon 4
K What's it Worth? 87 Fox GT What is it Worth?!?!? 11
T Exhaust Replacing cats with O/R x pipe and need a tuner Fox 5.0 Mustang Tech 6
mustangmccance Foxbody owner from Iowa The Welcome Wagon 14
T Aod transmission issues Fox 5.0 Mustang Tech 1
T Aod shifter linkage 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 13
N 86 foxbody Fox 5.0 Mustang Tech 1
Foxslider Foxbody junkyard direct replacement axles 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 41
T Drivetrain Is it worth it to rebuild an aod transmission or get something else? Fox 5.0 Mustang Tech 18
T Engine Foxbody idling surging and stalling Fox 5.0 Mustang Tech 10
K Engine 89 mustang lx 2.3 Starting problems 2.3L (N/A & Turbo) Tech 8
P Fox Has anyone ever used sn95 emission valve solenoids in a foxbody. 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 0
F Rancho GT-III, Foxbody Mustang Swaybar Parts 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 1
5 NEED ADVICE FROM COMMUNITY MEMBERS 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 8
T Heater Core fix 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 21
B Drivetrain Foxbody Rear End Maxed Out Fox 5.0 Mustang Tech 38
5 3.55 gears for a 87 mustang automatic transmission 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 13
I 1988 Mustang possible transmission shuddle? Fox 5.0 Mustang Tech 4
8 Engine Turbo fox build hot start issue Fox 5.0 Mustang Tech 7
beyondEOD SOLD MOATES QUARTERHORSE QH EEC Tuner Engine and Power Adder 1
1989LXFOX Engine 2G Alternator Install Wiring Help Fox 5.0 Mustang Tech 3
8 Plz Help! ‘88 Mustang will not idle and runs poorly Fox 5.0 Mustang Tech 4
Serb Progress Thread First Foxbody 408 Stroker 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 17
E WTB/Trade WANT TO BUY: ALMOND FOXBODY Fox Body Mustangs For Sale (1979-93) 0
9 Need held, Strange Sound at Ignition Fox 5.0 Mustang Tech 2
C Rovos Durban 18x10.5 on foxbody 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 2
A Foxbody misfire Fox 5.0 Mustang Tech 14
K Electrical Can someone tell me what these connector is for on 91lx ecu harness Fox 5.0 Mustang Tech 1
R 4v foxbody 1996 - 2004 SN95 Mustang -General/Talk- 3
Z Engine 88 foxbody not running Fox 5.0 Mustang Tech 4
Mstng93SSP Is the foxbody used part market dead? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 69
JDSpeed Mid-engine, AWD, foxbody with Ferrari chassis 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 14
Similar threads