How to increase gas milage on the RB?

Post by **w1ngzer0** » Thu Jul 22, 2004 2:50 pm

I know its a silly idea but i remember a few say it could be done. BTW what does the RB25 and 26 get for gas milage?

I am talking about highway gas milage not street. Street can't be helped.

Post by **93RPS13** » Thu Jul 22, 2004 2:50 pm

tune it, upgrade the engine managment, the is the most over looked mod its cost effictive less mods and alittle tuning can make your car pretty fast

Post by **gprodigy85** » Thu Jul 22, 2004 2:50 pm

lower final drive ratio rear end, taller wheels/tires ... that'll help, turning the boost down as much as possible on highway trips...

or get a big turbo that doesnt hit boost till like 4k rpms... lol then youll have a n/a highway car ... hahah

Post by **w1ngzer0** » Thu Jul 22, 2004 2:50 pm

lol

how big are you RB owners running on exhaust. Would 3" work?

Post by **gprodigy85** » Thu Jul 22, 2004 2:50 pm

3" and up is just fine... im running an apexi n1 dual which is 3" into 2 2.5" pipes...

Post by **Ghettokracker71** » Thu Jul 22, 2004 2:50 pm

what MPG does the RB20DET get? I might get one soon (WHOO WHOOO WHOOO EXCITED)

Post by **w1ngzer0** » Thu Jul 22, 2004 2:50 pm

im thinking of stealing the apexi idea. 3"flange 2x 3" pipes to a 3" Y pipe 2x 3" tips

I was thinking of the apexi exhaust but wasn't sure that 2.5" even though there are 2 of them would be enough

Website · Post by **frosted flakes** » Thu Jul 22, 2004 2:50 pm

im gettin 24-25mpg city, 30mpg highway...with rb20det, 3" exhaust, intake, stock boost, tuned s-afc2, 5-speed...

Post by **w1ngzer0** » Thu Jul 22, 2004 2:50 pm

awsome. Thats cool man. 25/30mpg. I am asuming the lighter chassis helps with gas milage too. The fact its not hauling a 3200+lbs chassis requires less fuel to push.

Post by **93RPS13** » Thu Jul 22, 2004 2:50 pm

Apexi R95 is pretty big i think its 3.5", i heard alot of good things about it

Post by **Ghettokracker71** » Thu Jul 22, 2004 2:50 pm

thats almost what I get with my KA,holy ****. I was looking in to getting the RB20 swap,the biggest two things is installation cost and replacement parts if/when something goes wrong on it

Post by **JonPowell** » Thu Jul 22, 2004 2:50 pm

I got an average of 20MPG with my RB25, but it was running rich as hell. Needed to get an adjustable fuel regulator to fix that, might jump me up to near 25 then.

Post by **w1ngzer0** » Thu Jul 22, 2004 2:50 pm

is there any kind of equation i can do to figure out how if the 1 to 2 to 1 is going to big to much or just enough?

How to increase gas milage on the RB?

How to increase gas milage on the RB?

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