
03-04-2011, 07:54 AM
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CC Member
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Join Date: Mar 2003
Location: Arkadelphia, AR,
AR
Cobra Make, Engine: Kirkham 427 brushed aluminum with Keith Craft 527C.I. all aluminum FE
Posts: 992
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Not Ranked
New EZ EFI Stack 482FE build results
We just completed a 482C.I. for a customer with stack injection that we used the new Fast EZ EFI set up on. We have used this on the small block stack injection stuff with great succes. The great thing about this set up is that it is self tuning and has worked great on other stuff so far. Can drive the car from 100 feet above sea level to 8000 feet above sea level with no laptop tuning or anything.
Working with Fast we had to build a plenum box for the vacuum with lines from each runner to the box. The system uses the vacuum to tell how much load is on the engine. It also uses the barometer, air temp, water temp and O2 sensor to help tune as well. It takes a little run time for the box to start learning. You can preset the air fuel that you are shooting for in the box and then it will work and self tune to get there. We played with the fuel pressure some as well.
The engine was a 482C.I. FE built with a 1964 Ford center oiler block that we drilled for lifter oiling since we were going to run a hydraulic roller. About 10 to 1 compression with our stage 2 heads. The engine made 617 ft/lbs of torque at 4300 rpms and 621 HP at 5700 rpms. The engine has a very nice flat torque curve.
The unit will keep tuning after it is installed in the car and adjust for your exhaust and what ever air cleaner system that you run. We have been looking for something that would self tune with a stack injection set up so that you do not have to get the laptop out to tune it. I think this is going to be a nice set up for future builds.
The complete small block set up runs 5500.00 and the FE set up runs about 6500.00 because we have to build the plenum box and run the lines plus there is a little extra cost to instaliing it on an engine and dyno testing it because it is a little more work than the carburetor set up. The small block has a plenum built intio the intake. Next up is the 482C.I. all aluminum polished 427 SOHC with stack fuel injection. Stay tuned hope to have information on it in a few weeks.
Thanks, Keith Craft
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Keith C
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