New to the 5.0 scene

[Crazyhorse347]

Hello, I am new to the 5.0 seen. I was a old Grand National owner and raced the Buicks since 1988. I loved those cars but I also always like the Mustang even though the buick guys and mustang guys did not get along.

Well now I have bought myself a 1987 Mustang GT with the following mods.

Brand new Eagle 347 Stroker with Mass air
AFR alumium Heads
Elderbrock upper and lower
42 lb injectors
70mm BBK throttle body
Long tube BBK headers
MSD TFI full ing.
vortech s-trim blower

hooked to a PA C-4 super comp trans with brake
alumium drive shaft
Built 8.8 with spool 3.73, moser axels, c clip elm.
Florida 5.0 dash...ect


Well my question is that this car has about 50 miles on it, eveything is brand new.

It has 6 passes on it with pump gas and has run 10:66@125 thru the exhaust on drag radials.

The car was Dyno tuned to be between street and strip, so it runs on pump gas only.

But there is no O2 sensors in it. How does this all work like this and is this a normal setup? what do I have???

this car is way different from anything I have had. Any help would be a great welcome to me...
here is a short video of it.




thanks

 

[Crazyhorse347]

car

Also forgot, car has over 20K in it along with a tublar front end..

 

[BoostFiend]

Looks like a beast man. I wish I could offer you more input but I am just getting back into the 5.0 scene myself.

 

[lang williams]

I would think there has to be O2 sensors on it. I don't know if they could dyno tune it without them. I had one go bad an my car ran like crap. The stock location is on the H pipe just below where it bolts to the header. My only other guess would be if you had an aftermarket stand alone engine management system.

 

[strtrcr50]

You can run a ford eec without oxygen sensors. It will just stay in open loop.

 

[Crazyhorse347]

car

I got the dyno sheets on it, how can it run right like this and why would they do this? I dont even see a wire for a o2.

I checked the exhaust from front to back, no o2 and the holes have plugs in them.

this car is fast but how???

 

[TheUser]

Pull the codes and see if it's got any codes. I would think it would go into limp mode w/o O2 sensors. If however, it just stays in open loop as str suggests, it would be running rich.

Do you smell gas?

 

[bentley429]

It is fine. My car was tuned with no 02 sensors and runs great. You may use a little more fuel because its on the lean side but with something like that it would be about the last thing on my mind. Run it!

 

[fford]

Mine has an aftermarket chip burned in at the dyno session. Once the dyno technician burns the program in my case he left it in open loop and does not run lean at all, if follows the tuning program and the only thing my o2 sensors do now is plug the holes.

 

[strtrcr50]

By forcing the car to run constant open loop, the car will never use adaptive learning.

 

[Crazyhorse347]

does it need to, or can it use a flat line o2 map?

 

[allballsmustang]

as long as no modifications are done, it can continue to run off the set parameters of the chip... but if anything changes, as mentioned above, the car doesnt have the capability of adaptive learning...

 

[strtrcr50]

In some cases, the adaptive learning is a bad thing. Corrections that are applied in closed loop to get to where the eec wants to be are applied at full throttle and open loop. It is possible to handle this with a chip and continue to run 02 sensors, but some choose not to do it that way. At any rate, as long as you are tuned right, you won't have a problem running without o2 sensor but you will get a check engine light.

 

[strtrcr50]

does it need to, or can it use a flat line o2 map?

It will use the base open loop table to the best of my knowledge.

 

[fford]

I don't get a check engine light as long as I leave them connected, they just aren't used by the computer.

 

[Mustangr]

That is a sick set up. If you dont mind me asking what did you PAY???

 

[Crazyhorse347]

car

I have a little over 14000 in it on my end, I have the papers showing 24K spent in the last year by the orginal owner. It has a PA C-4 super comp with a brake in it and that carries a life time warrenty.....TCI convertor....ect....all new!!!

 

[blackstallion89]

Nice!

I have a little over 14000 in it on my end, I have the papers showing 24K spent in the last year by the orginal owner. It has a PA C-4 super comp with a brake in it and that carries a life time warrenty.....TCI convertor....ect....all new!!!

Thats crazy...what a steal!!! Just shows you can buy them alot cheaper than building them. Would be a fun car on the street...trans brake and all.. haha

 

[Mustangr]

I wouldnt want to tell you how much I have into mine. Its been about 4 cars from mild to fairly wild. Its been fun though