Mark Houlahan
Tech Editor, Mustang Monthly
June 1, 2002

Horse Sense:
For our P-1SC install, we upgraded to the three-core intercooler. This 'cooler, which measures 3x11x27 inches (9 inches longer than the two-core), is rated for up to 750 hp, whereas the standard kit's two-core is rated for only 500. The extra breathing room of the three-core intercooler will help as we turn up the wick on our project later.

When we installed the ATI P-1SC supercharger on our '01 GT project car last month ("Now and Greater," May '02, p. 60), we were careful to not get into sustained boost. Since we hadn't upgraded the rest of our fuel system to meet the demands of the new supercharger, this could have been disastrous. We did upgrade the in-tank pump at the time of the install, but we needed to look at the rest of the fuel system if we wanted to make reliable power every time we went into boost. While the 3g GT felt extremely strong, we didn't want to hurt anything.

The hot ticket these days with many ATI dealers is to use the Lightning mass air meter and corresponding 42-lb/hr injectors, along with a new performance chip programmed for said changes. While many tuners were using the '99-2000 Lightning mass air meter (at 80 mm), we decided to go one better and bolt in the massive 90mm unit from the '01 Lightning. A call to our good friend Sal Manella at Power Surge Performance was the ticket for the new ($160) mass air meter we needed.

To work with the new meter, 42-lb/hr injectors are a must. We ordered a set of eight (PN 522-4208) 42s in high impedance (to work with the EEC V) from Holley Performance Parts. The 750hp capability of these injectors [$469 from Excessive Motorsports, (800) 930-9585] will give us plenty of room for engine and supercharging upgrades later on in our project.

To tie everything together, we contacted Chris Spies at ATI (who originally installed our P-1SC) and gave him the parameters so he could upgrade our fuel maps in a new chip. ATI uses Mike Wesley's Autologic ChipMaster software. After a brief conversation with Mike (via Sal's computer and a chat room no less), we were able to score the proper transfer function and other details that go into burning the proper chip for an application.

Once everything showed up, it took only an hour or two to get it all installed and ready for dyno testing. Once again, we visited the folks at Lugo Performance in nearby Apopka, Florida, so they could strap the 3g GT down to the Mustang Dynamometer and make a few pulls for us. Dyno operator Eddie Burke was more than happy to thrash our new baby on the MD-1750 dyno.

Photo Gallery

View Photo Gallery