Are '98 GTs any faster than '96-'97s?

03-29-2000, 09:17 AM

98 cobras ARE faster than 96/97. The different returnless fuel system mandated a new computer parameters. Also they used a different butterfly (whatever the hell they call those things in the intake). That was coupled with a higher velocity smaller ports (not by that much) in the heads for better low end torque.
In an issue in MM&FF, supperfly a 97 was pitted against a 98 both with similar gearing and on slicks. Supperfly had ported heads, Sean Hylander cams, the butterfly eliminator, and a few other more than the 98. The 98 was naerly stock except a full exhaust.
Supperfly lost in that confrontation. The 98 had about1.5-2mph more tham supperfly.

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94gt,GT40 stage 3 ported intake,TFS heads with mild bowl work
75mm massair cal to 24lbs injectors with matching injectors
fullexhaust,pulleys,3.73 rear, 1.72 rockers; ,pro 5.0 shifter; Bassani x-pipe w/cats
AFM B-2 cam; 70mm TB; lakewood 70/30 drag struts, Mac fenderwell cold air induction. Performance Inprovement Harness
Factoryfive upper and lower control arms.

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03-29-2000, 09:17 AM	#5
blkrain Guest Posts: n/a	98 cobras ARE faster than 96/97. The different returnless fuel system mandated a new computer parameters. Also they used a different butterfly (whatever the hell they call those things in the intake). That was coupled with a higher velocity smaller ports (not by that much) in the heads for better low end torque. In an issue in MM&FF, supperfly a 97 was pitted against a 98 both with similar gearing and on slicks. Supperfly had ported heads, Sean Hylander cams, the butterfly eliminator, and a few other more than the 98. The 98 was naerly stock except a full exhaust. Supperfly lost in that confrontation. The 98 had about1.5-2mph more tham supperfly. ------------------ 94gt,GT40 stage 3 ported intake,TFS heads with mild bowl work 75mm massair cal to 24lbs injectors with matching injectors fullexhaust,pulleys,3.73 rear, 1.72 rockers; ,pro 5.0 shifter; Bassani x-pipe w/cats AFM B-2 cam; 70mm TB; lakewood 70/30 drag struts, Mac fenderwell cold air induction. Performance Inprovement Harness Factoryfive upper and lower control arms.