gas milage

[Mitsub3000]

what is the gas milage for a 3000gt sl? i looked it u and it said 19/25 but mine doesnt seem to get that. it might just be the way we drive, hard accelerations and redlining and the like

[Thourun]

I recently drove my SL to New Hampshire and burned a quarter tank going 130 miles.

[91r/t]

driving home from texas i averaged about 32 mpg and around town i average about 23 mpg in my 5 speed non turbo r/t

[StealthModifier]

19/25 sounds about right.. i fill my car up at a 1/4 tank and fills up at about 11 gallons.. then i can go about 250-300 miles on that

[Linebckr49]

that 32mpg figure sounds a little (or WAY) off. unless you have a SOHC, not sure how a DOHC could get that good gas mileage. However, there is a great way to get better gas mileage AND have a great top speed: get a taller 5th/6th gear. Team Rip Engineering (www.teamrip.com) will service the 3s trannies and do cool stuff like this. i'm considering have that done when i get my tranny rebuilt in the future. i just love the 3000GT so much, i don't think i'll ever get rid of it.

[xXxRocker5150]

Hey, linbcker, whatts the price on one of those dealies

[Linebckr49]

Originally Posted by xXxRocker5150

Hey, linbcker, whatts the price on one of those dealies

if i remember correctly, you can get an 8% taller 5th gear for $100, also the price of the 16% taller 5th gear is on sale for $100. they make a 25% taller 5th gear for $200, but it will only fit in their built/rebuilt trannies, b/c they have to make room for it during the rebuild. but i think those are very reasonable prices. especially for hte 25% taller 5th gear, you could GREATLY increase fuel economy in 5th gear!

of course, those prices are just for the parts. you would need to install the gears and accessories yourself, which supposedly isn't that difficult. there are guys all over 3si.org who have rebuilt and replaced parts in their manual trannies. there are a few websites that document and explain how to take apart and put back together our trannies. interesting stuff, you just have to have a lot of patience when opening up trannies and working on the internals.

another route, is obviously to take your tranny to a transmission shop, and have them install the taller gear. not sure how much they would charge, but i would expect it to be no more than a few hundred for labor.

[talskinyguy]

30+ mpg highway is not out of line for a DOHC, hell I get that in my VR4, stock and even now with 880cc injectors. That is of course assuming you are doing around 70mph, because I only get around 8-10 mpg when on above 140.

[Igovert500]

Originally Posted by talskinyguy

30+ mpg highway is not out of line for a DOHC, hell I get that in my VR4, stock and even now with 880cc injectors. That is of course assuming you are doing around 70mph, because I only get around 8-10 mpg when on above 140.

I was gonna say.....the day I get over 18mpg on the highway with my 360cc injectors, while not driving on my donut, I'll shed a tear of joy.

[xXxRocker5150]

wohw wtf? u guys get like just as good if not better mileage than the base and sl models, at least just as good as or better than mine, I'm still in shock about the 30+ MPG... ne other tips to get better mileage... like a tune up or somthing???

[Igovert500]

new fuel filter, airfilter, check your tire pressure

[xXxRocker5150]

thanks!

[Linebckr49]

our cars run rich from factory settings. if you had a AFC, then by leaning out the fuel curve, you could save gas and improve fuel economy. that's one reason why a lot of VR4s have as good if not better fuel economy than base and SL models. that is, they either have an AFC or standalone EMS.

of course, its not really feasible to get an AFC or EMS for the base/SL models, b/c we really would not gain that much in performance from leaning out the fuel curves. Now if one did a TT conversion, then an AFC or EMS MIGHT be worth it. IMO, i'd rather get a VR4, then i could see spending the $1000 + on a EMS, b/c not only could i improve fuel economy, but there's so much potential for performance improvements once you can control fuel/air ratios, already having supporting mods (fuel pump, injectors, MAS).

[Stealthee]

I get around 20-22 mpg around town and every day driving. If I go easy I can squeeze 25. On trips I have gotten as much as 30mpg. But that evewn included some city driving and alot of 80mph cruising. And a few 100+mph sprints.

Now in a SOHC 80mph is about 3500 rpm if I remember right. Hopefully I will be getting the 16% 5th gear reduction soon.

EDIT: Oh yeah the DOHC is rated for better gas mileage than the SOHC mainly because they are roughly the same weight and the DOHC will get the car moving better.

[StealthModifier]

has any1 heard about shell v-power gas?