NoPistons -Mazda Rx7 & Rx8 Rotary Forum - 1/4 Mile Times For Na 2nd Gen Rx-7s

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- - 1/4 Mile Times For Na 2nd Gen Rx-7s (https://www.nopistons.com/drag-racing-time-slips-42/1-4-mile-times-na-2nd-gen-rx-7s-28788/)

FC3S_DRIFTER

11-16-2003 07:43 PM

Does anyone know any times for non-convertablie RX-7s with the NA 13B engine?

SPD Racing FC

11-19-2003 06:48 PM

stock? 86-88 or 89-91

FC3S_DRIFTER

11-20-2003 08:57 PM

stock 89-91

mazdaspeed7

11-27-2003 06:17 PM

mid 15's, i think 15.4@90 mph, or something around there.

jspecracer7

11-28-2003 01:29 AM

what type of affect would lightening the car have? Higher trap speed? Faster 1/4 time? Better 60' times?

I ask because aren't the vert's heavier?

mazdaspeed7

11-28-2003 10:29 AM

Lighter weight yields a disproportionally lower ET to the trap. With a lighter car, the ET goes down more than the trap goes up.

Judge Ito

11-29-2003 12:37 PM

14's and 13.7 both 88 Rx7's ported and polished with some bolt ons using the factory ecu.

FC3S_DRIFTER

11-29-2003 10:59 PM

How much horsepower over stock can i expect if if street port my na engine, with an exhaust and intake. What is the best intake/exhaust and what other mods could i do to the NA engine?

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