mods+mpg?
Thread Starter
On The Tree
Joined: Feb 2012
Posts: 160
Likes: 0
mods+mpg? Just wondering how far my mileage will go down adding future mods, what mods do u guys have and from fill up til gas light comes on, how many miles did u go?
99z, 6 speed, Msd wires, tb spacer, 2nd stage no name clutch, borla catback exhaust, granatelli lid, and tune...
I get 170-180 miles from max tank til light turns on
99z, 6 speed, Msd wires, tb spacer, 2nd stage no name clutch, borla catback exhaust, granatelli lid, and tune...
I get 170-180 miles from max tank til light turns on
Thread Starter
On The Tree
Joined: Feb 2012
Posts: 160
Likes: 0
Yea I know, slowly replacing and fixing stuff, eventually ill find out what's causing the loss, just replaced lifter valley oil leak and intake manifold gaskets, Imma replace vacuum lines next to see what happens
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First of all throw away your TB spacer. Not because it hurts mileage but because it's pointless.
If you're only getting ~200 miles to a tank, with a 6 speed, something's wrong. That kind of mileage is what a stalled auto with a huge cam should get.
Recently I installed long tubes, an ORY, and new TR55 plugs, and I'm getting my best mileage yet... 21 mpg average (lots of highway driving). And I haven't even gotten it tuned yet.
If you're only getting ~200 miles to a tank, with a 6 speed, something's wrong. That kind of mileage is what a stalled auto with a huge cam should get.
Recently I installed long tubes, an ORY, and new TR55 plugs, and I'm getting my best mileage yet... 21 mpg average (lots of highway driving). And I haven't even gotten it tuned yet.
TECH Fanatic
Joined: Mar 2011
Posts: 1,050
Likes: 2
From: Odessa, TX
Iv got lts magnaflow catback ORY 1 high flow cat after the merge frost tune lid and I get 180-190/tank but I'm all stop and go traffic. I'm a4 no ac ever on windows always down getting mid 14/mpg. For some reason full to e is only 12.6 gallons and I KNOW it's a 16.8gal tank. Wtf would I have ~4.2gals reserve??? Who the **** knows? I say bad fuel sending unit and ls1tech shot that idea out of the sky. Lol oh well.
Iv got lts magnaflow catback ORY 1 high flow cat after the merge frost tune lid and I get 180-190/tank but I'm all stop and go traffic. I'm a4 no ac ever on windows always down getting mid 14/mpg. For some reason full to e is only 12.6 gallons and I KNOW it's a 16.8gal tank. Wtf would I have ~4.2gals reserve??? Who the **** knows? I say bad fuel sending unit and ls1tech shot that idea out of the sky. Lol oh well.
I get about 200-215 a tank filling up to 14 gallons comes to be about 16 mpg, all stock SLP intake/exhaust, m6, with new plugs, fuel filter after seafoam, fresh oils (engine,tranny,diff.) Highway i get 23-26 mpgs. Need to replace my fuel press regulator, might just step up to the walbro system.
TECH Fanatic
Joined: Mar 2011
Posts: 1,050
Likes: 2
From: Odessa, TX
Think that "adjustment" is similar to a bent fuel level float to read less than what actually there? A buddy's 99 ta goes way past full and gets about 50 before it goes down to the full mark and I at 90ish by 3/4 I'm usually at 90-120 by 1/2 as per gauge reading. Is this similar to yours ls1121?
Teching In
Joined: May 2012
Posts: 36
Likes: 0
I get around 24 mpg and I have hooker cat back, fresh tr55 and all oils including diff. My tank holds right around 15 gallons I think u guys that r saying u only hold 12.5 there's something screwy there lol unless u just have smaller tanks
i never really let the light come on but i usually fill up around 240-50 with full exhaust,4.11's with a m6
EDIIT-ok with 240 miles on the clock i used 13 gals i dont drive the car much any more but when i do i have a tendancy to drive it a lil harder than i normally would
EDIIT-ok with 240 miles on the clock i used 13 gals i dont drive the car much any more but when i do i have a tendancy to drive it a lil harder than i normally would
Last edited by dc4bill; Jun 29, 2012 at 01:38 PM.
