18mpg!!

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Jul 11, 2006 | 09:32 PM

KAOS

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18mpg!!

figured up my gas mileage today. 18.2mpg!!!!!!!!! i think that rocks. that include getting on it for a short burst or two. this is through a 6 speed. how bad do you think it would drop with an auto? this is on the old tune, set for 10psi. on those short burst it only sees 5psi max. this is with new heads and cam so its hard to tell how it will end up doin once i get a wide band and start doin a lot of street tuning. any tips to make it go up in the 20s on the highway?

Jul 11, 2006 | 09:53 PM

smokinHawk

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From: Columbus, ohio

on my oldturbotech at 10psi (512rwhp MD) id get a pretty consistant 20mpg with romping on it alot
havent measured it on my new setup, but i switched to a 3.73 rear still M6

Jul 11, 2006 | 09:59 PM

KAOS

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on my old setup i made 450 rw on 5psi. and that was stock 6l heads and cam. i just wonder what the gt7 cam and tsp stage one heads has done for it. we will see

Jul 11, 2006 | 10:23 PM

navymitch12

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From: Texas

i made 460rwhp in 93degree heat....and i am getting 14 city (first mth tuned so a little happy with the gas pedal) and still 28highway..

going to NY from GA tomorrow...aiming to break 30mpg...we will see

Jul 12, 2006 | 07:17 AM

KAOS

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i mean you cant beat that. all this power and still stock like gas mileage. i would imagine an auto car especially a 3 speed would be horrible

Jul 12, 2006 | 11:16 AM

smoke20

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im averaging 16 mpg in town with 7psi -3.73 gear auto. looking to go 3.42 soon . help with mileage and power im told

Jul 12, 2006 | 11:17 AM

Zombie

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Quote:

Originally Posted by KAOS

would imagine an auto car especially a 3 speed would be horrible

I haven't gone through a full tank without beating on it since I installed 2.75's, but my gas milage has gone up by A LOT compared to the 3.50's. With the 3.50's if I took it easy I would get about 10-11 mpg, could go about 140-150 miles on a full tank. With the new gears and beating on it a whole lot I got 180 out of a tank (a/c on) which was about the max I could get when I was 6spd. If I took it easy (what fun is that) I could probably get 200 miles to a tank. Th400 is not as bad as people think as long as you have the right gear and converter.

PS, I do probably 60/40 city/highway.