Hey guys. Todd from KC. I’ve got a new to me car. It’s a Factory Five AC Cobra. It’s good good solid build and a newly rebuilt engine from a 93 Fix body. Engine detailed to come.
Very low miles on the rebuild/build. 1000 miles on the AC Cobra. All the accessories and important parts are factory from the 93 Fox body donor car (MAF, TB, Injectors, fuel pump). The engine details are:
I realize that I need to make some upgrades. Primarily injector size (likely 30 pound), and MAF/65mm Throttle Body. Maybe even fuel pump. But before I can do that, I need to better estimate the potential HP of this build. 24lb injectors might be better if the HP is lower than I suspect. Also the TB spacer and MAF size and specs should be matched.
-My car starts great, but chugs a lot during idle.
-Aggressively pressing on the skinny pedal results in the engine cutting out badly.
-when the motor gets hot, bad hesitation at any rpm above a high idle.
I think all these are a result of not enough fuel/air. Not enough fuel to support aggressive throttle, and not enough fuel to fight vapor lock while engine is hot.
So here is goes:
Does it sound like I am on the right track to fix my issues?
What does anyone believe my HP/Tq to be with my setup?
What changes would you make to my engine to get it running at peak?
Thanks guys. I appreciate any help you can offer.
T
Engine running
Very low miles on the rebuild/build. 1000 miles on the AC Cobra. All the accessories and important parts are factory from the 93 Fox body donor car (MAF, TB, Injectors, fuel pump). The engine details are:
- GT-40 Long Block
- Edelbrock victor jr
- Fly cut pistons
- Compcams 1.7 roller rockers
- Compcams 1pc hardened pushrods
- 130 amp alternator
- King cobra clutch
- X-303 cam
- MSD distributor
I realize that I need to make some upgrades. Primarily injector size (likely 30 pound), and MAF/65mm Throttle Body. Maybe even fuel pump. But before I can do that, I need to better estimate the potential HP of this build. 24lb injectors might be better if the HP is lower than I suspect. Also the TB spacer and MAF size and specs should be matched.
-My car starts great, but chugs a lot during idle.
-Aggressively pressing on the skinny pedal results in the engine cutting out badly.
-when the motor gets hot, bad hesitation at any rpm above a high idle.
I think all these are a result of not enough fuel/air. Not enough fuel to support aggressive throttle, and not enough fuel to fight vapor lock while engine is hot.
So here is goes:
Does it sound like I am on the right track to fix my issues?
What does anyone believe my HP/Tq to be with my setup?
What changes would you make to my engine to get it running at peak?
Thanks guys. I appreciate any help you can offer.
T
