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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

HELP! pinging

  • Thread starter Thread starter stolentcm
  • Start date Start date Apr 13, 2008
S

stolentcm

New Member
Nov 19, 2006
6
0
1
Apr 13, 2008
#1
  • Apr 13, 2008
  • #1
I have a 5 speed 95 gt with a D&D 342 stroker with 10.7:1 compression, roush 200 iron heads, holley systemax kit, custom ground comp cam, full exhaust, full MSD ignition, 255 lph pump, 34# injectors, 70mm bbk throttle body, 90mm mass air calibrated for the injectors, denso iridium plugs and 4.10 gears.
the car made 343 hp and 375 ft. lbs. of torque to the wheels with 2.73 gears. it still pings on race fuel too.

car has been dyno tuned twice at mustang magic, they locked timing at 26 degrees, and the pinging won't go away at low rpm under a load. I don't have a standalone tuner yet, I was offered a DFI fms and I'm looking for any input to help figure this out. Turbo people say i need a standalone fuel management system... my wife wants to one day be able to eat dinner every night, so cheaper would be good too.

thanks in advance
 
L

leathernotch

New Member
Oct 14, 2006
41
0
0
Apr 14, 2008
#2
  • Apr 14, 2008
  • #2
What would be best for him to buy a Accel DFI Gen 7 or something else
 
R

riored94cobra

New Member
Oct 22, 2008
7
0
1
Indy, IN
Oct 23, 2008
#3
  • Oct 23, 2008
  • #3
What are your full mods???

bc if your egr system is removed, the computer could be throwing a ton of timing at your motor to compensate for lack of egr air flow.

I'm having the same problem with mine
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Oct 23, 2008
#4
  • Oct 23, 2008
  • #4
stolentcm said:
I have a 5 speed 95 gt with a D&D 342 stroker with 10.7:1 compression, roush 200 iron heads, holley systemax kit, custom ground comp cam, full exhaust, full MSD ignition, 255 lph pump, 34# injectors, 70mm bbk throttle body, 90mm mass air calibrated for the injectors, denso iridium plugs and 4.10 gears.
the car made 343 hp and 375 ft. lbs. of torque to the wheels with 2.73 gears. it still pings on race fuel too.

car has been dyno tuned twice at mustang magic, they locked timing at 26 degrees, and the pinging won't go away at low rpm under a load. I don't have a standalone tuner yet, I was offered a DFI fms and I'm looking for any input to help figure this out. Turbo people say i need a standalone fuel management system... my wife wants to one day be able to eat dinner every night, so cheaper would be good too.

thanks in advance
Click to expand...


If they lower the MBT table it should act as a limiter for the timing under all conditions
 

final5-0

Mustang Master
Apr 6, 2003
6,817
12
79
DFW Texas
Oct 23, 2008
#5
  • Oct 23, 2008
  • #5
That sounds like a very nice combo you have put together

You need a tune that is on the same level as the rest of the combo :Word:

IMHO ... Stuff like locking the time (mechanical methods)

That Ain't Tuning

I would advise that you find a method that will give you ......

Maximum Flexibility ... OR ... Total Control

With your ability to adjust your Spark and Fuel

PMS ... Tweecer ... SCT ... or something along those lines

That way ... Y O U will have total control
NOT ... someone else

and

You can do a nice tune that is C U S T O M to YOUR specific combo

Grady
 

Don 95Vert

Founding Member
Oct 1, 1999
1,091
1
39
Delaware, OH
Oct 24, 2008
#6
  • Oct 24, 2008
  • #6
Others may disagree, but that is a lot of timing for that CR. The other thing to consider is I have seen cases where switching from Iridium plugs to plain old copper plugs magically makes detonation go away... I'd also put a stock ignition back on it.
Don
 

Stanger007

Founding Member
Sep 26, 2001
2,015
2
46
Baton Rouge, LA
Oct 26, 2008
#7
  • Oct 26, 2008
  • #7
Don 95Vert said:
Others may disagree, but that is a lot of timing for that CR. The other thing to consider is I have seen cases where switching from Iridium plugs to plain old copper plugs magically makes detonation go away... I'd also put a stock ignition back on it.
Don
Click to expand...

Great advice all around.

Wes
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Nov 2, 2008
#8
  • Nov 2, 2008
  • #8
Don 95Vert said:
Others may disagree, but that is a lot of timing for that CR. The other thing to consider is I have seen cases where switching from Iridium plugs to plain old copper plugs magically makes detonation go away... I'd also put a stock ignition back on it.
Don
Click to expand...

I didnt notice the iridium plugs but yes copper plugs one step colder than stock are what I would use , and the Iron heads are less forgiving than aluminum heads with higher compression , I would get a Sniper Commando, SCT pro racer , or Tweecer setup for tuning and adjust the timing and fuel until you get it right , complete standalone is not needed and is overkill for your setup
 
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