why would an 01 TA detonate on a 50 shot?
07-20-2006, 06:57 PM
#22
Launching!
iTrader: (1)
Join Date: Jul 2002
Location: Lexington, KY, USA
Posts: 291
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by b dub
but i thought the o2 would sense the lean condition and immediately add more fuel through the injectors? i dont understand how this wouldnt apply to every car and not just an LS1.
07-20-2006, 07:07 PM
#23
Teching In
Thread Starter
Join Date: Jul 2006
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by FinalTA
I believe the O2 sensors are ignored by the PCM under WOT (wide open throttle) conditions....someone correct me if I'm wrong. Our O2 sensors are narrow-band sensors anyway...they are really no where near accurate, more of a 'ballpark'.
07-20-2006, 09:44 PM
#25
Teching In
Thread Starter
Join Date: Jul 2006
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
quick update: this is what i did:
1. pulled the mass air and cleaned it with electronic cleaner
2. repositioned the nozzle 6 inches in front of the mass air, plugged the other hole.
3. pulled all 8 plugs for autolite 103's
4. replaced fuel filter
5. pulled codes, bad o2 sensor, replaced with a new one.
on the way back to the house, mil goes off again, engine was running rough, pulled codes, and it said #8 misfire. seems my buddy didnt plug the wire in all the way. doh!!
will update again in a hour when the engine cools and he can get back there to tighten it.
b18, no regulator but now i know how its possible.
1. pulled the mass air and cleaned it with electronic cleaner
2. repositioned the nozzle 6 inches in front of the mass air, plugged the other hole.
3. pulled all 8 plugs for autolite 103's
4. replaced fuel filter
5. pulled codes, bad o2 sensor, replaced with a new one.
on the way back to the house, mil goes off again, engine was running rough, pulled codes, and it said #8 misfire. seems my buddy didnt plug the wire in all the way. doh!!
will update again in a hour when the engine cools and he can get back there to tighten it.
b18, no regulator but now i know how its possible.
07-20-2006, 10:15 PM
#27
The ford computers are not as advanced as the LS1 GM computers.
The 5.0 systems actually work by spiking a fuel pressure regulater to add the needed fuel. The LT1 systems works the same way..
The newer fords use a dry system that is computer controlled with a module. NOS offers this.
The LS1 is a whole different annimal. WE actually spray before the maff and the needed fuel is added through the injectors by the PCM.
Welcome to LS1 tech...
There are more ford guys on here you you would think..
Let me know if you guys need any tech help. No matter what make or model.
Dave
The 5.0 systems actually work by spiking a fuel pressure regulater to add the needed fuel. The LT1 systems works the same way..
The newer fords use a dry system that is computer controlled with a module. NOS offers this.
The LS1 is a whole different annimal. WE actually spray before the maff and the needed fuel is added through the injectors by the PCM.
Welcome to LS1 tech...
There are more ford guys on here you you would think..
Let me know if you guys need any tech help. No matter what make or model.
Dave
07-20-2006, 10:17 PM
#28
Teching In
Thread Starter
Join Date: Jul 2006
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by B18B1LS1
Gotcha, so how does it fuel on your Cobra?
for some bonehead reason, i just thought this is how you run all nitrous kits. wet kits add additional fuel anyway; and dry kits go a lil lean at first, then the computer compensates with more fuel. now i realize this is IMPOSSIBLE because the friggin computer doesnt USE the o2 at WOT. theres just no other way for it to tell its running lean/rich. kinda ironic that a diehard mustang guy had to learn this from an LS1 site, huh?! ive been schooled by the LS1 crowd, lol.but once again, thanks guys. heres one on me
edit: additional thoughts
Last edited by b dub; 07-20-2006 at 10:23 PM.
07-20-2006, 10:21 PM
#29
Teching In
Thread Starter
Join Date: Jul 2006
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Nitro Dave's Nitrous Outlet
The ford computers are not as advanced as the LS1 GM computers.
The 5.0 systems actually work by spiking a fuel pressure regulater to add the needed fuel. The LT1 systems works the same way..
The newer fords use a dry system that is computer controlled with a module. NOS offers this.
The LS1 is a whole different annimal. WE actually spray before the maff and the needed fuel is added through the injectors by the PCM.
Welcome to LS1 tech...
There are more ford guys on here you you would think..
Let me know if you guys need any tech help. No matter what make or model.
Dave
The 5.0 systems actually work by spiking a fuel pressure regulater to add the needed fuel. The LT1 systems works the same way..
The newer fords use a dry system that is computer controlled with a module. NOS offers this.
The LS1 is a whole different annimal. WE actually spray before the maff and the needed fuel is added through the injectors by the PCM.
Welcome to LS1 tech...
There are more ford guys on here you you would think..
Let me know if you guys need any tech help. No matter what make or model.
Dave
07-20-2006, 10:22 PM
#30
Originally Posted by Nitro Dave's Nitrous Outlet
The ford computers are not as advanced as the LS1 GM computers.
The 5.0 systems actually work by spiking a fuel pressure regulater to add the needed fuel. The LT1 systems works the same way..
Dave
The 5.0 systems actually work by spiking a fuel pressure regulater to add the needed fuel. The LT1 systems works the same way..
Dave
07-21-2006, 12:52 AM
#31
Teching In
Thread Starter
Join Date: Jul 2006
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
FINAL UPDATE
just walked in and am pretty disapointed. car ran great on the 50, detonated a lil on the 75. so i shut it off and we called it a night. my bud and i were really hoping for the 100.
so heres my question: timing adjuster, do they make them for LS1's? which do you recommend, etc.
edit: SECOND QUESTION: how do i tell if theres a tune on the car?
just walked in and am pretty disapointed. car ran great on the 50, detonated a lil on the 75. so i shut it off and we called it a night. my bud and i were really hoping for the 100.
so heres my question: timing adjuster, do they make them for LS1's? which do you recommend, etc.
edit: SECOND QUESTION: how do i tell if theres a tune on the car?
Last edited by b dub; 07-21-2006 at 01:11 AM.
07-21-2006, 10:00 AM
#32
FormerVendor
iTrader: (14)
Join Date: Jun 2005
Location: Glenolden, PA
Posts: 2,056
Likes: 0
Received 0 Likes
on
0 Posts
They do, although I would first see if the tune is stock or not. One way would be for a tuner to pull it and take a look, the most inexpensive might be to have it re-flashed to a stock tune at a dealer. Here is a link to the LS1 TT, although I'm not sure it will be the solution to your problem, as there seems to be some gremlins lurking in your set up:
http://www.harrisspeedworks.com/shop...cat=308&page=1
Matt
http://www.harrisspeedworks.com/shop...cat=308&page=1
Matt
07-21-2006, 10:01 AM
#33
FormerVendor
iTrader: (14)
Join Date: Jun 2005
Location: Glenolden, PA
Posts: 2,056
Likes: 0
Received 0 Likes
on
0 Posts
That's it, you got it. 
Matt
Matt
Originally Posted by FinalTA
I believe the O2 sensors are ignored by the PCM under WOT (wide open throttle) conditions....someone correct me if I'm wrong. Our O2 sensors are narrow-band sensors anyway...they are really no where near accurate, more of a 'ballpark'.
07-21-2006, 01:11 PM
#34
Teching In
Thread Starter
Join Date: Jul 2006
Posts: 19
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Matt@HSW
Here is a link to the LS1 TT, although I'm not sure it will be the solution to your problem, as there seems to be some gremlins lurking in your set up:http://www.harrisspeedworks.com/shop...cat=308&page=1
so if it has a tune, could i still run the nitro, as long as the timing is retarded sufficiently, or would it absolutely have to be on a stock tune?
what would a dealership charge for a stock tune reflash? (curious)
