In 1990, HKS built a drag Mk3, with a 7M that ran 7.91 sec. in 400 meters.
(400 meters is like 8 feet shy of our 1/4 mile)
http://www.hks-power.co.jp/history/history1990.html
Translation:
Being proud of wonderful speed in the professional stock class which is the top category in RRC drag race, this “HKS DRAG70 SUPRA”.
When 1991 August RRC 3rd game, at that time it breaks the wall of the time which is named “the wall of 8 seconds” beautifully as the proof, mentions 7 seconds 91 it started hitting the time which does not have either Tetsu.
As for engine 7M-G twin turbo. Forging piston, 272 degree [konkamu] (popular name), special valve & spring. [reburimitsuto] was pulled up to 8,750rpm, started hitting boost pressure 1.4kgf/cm2.
(400 meters is like 8 feet shy of our 1/4 mile)
http://www.hks-power.co.jp/history/history1990.html
Translation:
Being proud of wonderful speed in the professional stock class which is the top category in RRC drag race, this “HKS DRAG70 SUPRA”.
When 1991 August RRC 3rd game, at that time it breaks the wall of the time which is named “the wall of 8 seconds” beautifully as the proof, mentions 7 seconds 91 it started hitting the time which does not have either Tetsu.
As for engine 7M-G twin turbo. Forging piston, 272 degree [konkamu] (popular name), special valve & spring. [reburimitsuto] was pulled up to 8,750rpm, started hitting boost pressure 1.4kgf/cm2.
