21 mpg with TREX!!!
21 mpg with TREX!!! Thats right. I filled her back up after a 240 mile drive and she held 11 gallons. This was a mix of highway and small town redlights and on the way back I had to cruize in 5th to keep the exhaust drone from popping my ear drums cause it got cold and I had to roll the windows up (I'm just running bullets off the collectors for now, so it's LOUD). I'm still working on the tune so it's got better in it. For those who say a TREX isn't streetable I can cruize at 55 in 6th with 4.11's and a 28" tall tire, thats about 1200 rpm. FWIW the best I ever got out of this car with bolt ons, 4.11's and a 26" tall tire was 24mpg.
11 Second Club
Joined: Jun 2004
Posts: 60
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From: Hillsborough N.J
Originally Posted by SPEEDYws6
Thats right. I filled her back up after a 240 mile drive and she held 11 gallons. This was a mix of highway and small town redlights and on the way back I had to cruize in 5th to keep the exhaust drone from popping my ear drums cause it got cold and I had to roll the windows up (I'm just running bullets off the collectors for now, so it's LOUD). I'm still working on the tune so it's got better in it. For those who say a TREX isn't streetable I can cruize at 55 in 6th with 4.11's and a 28" tall tire, thats about 1200 rpm. FWIW the best I ever got out of this car with bolt ons, 4.11's and a 26" tall tire was 24mpg.
I get 12.9 on a good day
Last edited by JETNITRO; May 14, 2006 at 11:30 AM.
Originally Posted by SPEEDYws6
Thats right. I filled her back up after a 240 mile drive and she held 11 gallons. This was a mix of highway and small town redlights and on the way back I had to cruize in 5th to keep the exhaust drone from popping my ear drums cause it got cold and I had to roll the windows up (I'm just running bullets off the collectors for now, so it's LOUD). I'm still working on the tune so it's got better in it. For those who say a TREX isn't streetable I can cruize at 55 in 6th with 4.11's and a 28" tall tire, thats about 1200 rpm. FWIW the best I ever got out of this car with bolt ons, 4.11's and a 26" tall tire was 24mpg.
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Originally Posted by Turo
Nice! Are you running a MAF, or is it a speed density tune?
Quick semi-off topic question. Do ALL 98 Z28s have gas lights? My gas guage is off by about a 1/4 reading (it only reads 3/4ths when its full). So, my car reads dead empty and I believe there's still another 1/4 tank in there. Will a gas light turn on before I run out of gas or do not all Z's have them?
Originally Posted by SVT THIS
Quick semi-off topic question. Do ALL 98 Z28s have gas lights? My gas guage is off by about a 1/4 reading (it only reads 3/4ths when its full). So, my car reads dead empty and I believe there's still another 1/4 tank in there. Will a gas light turn on before I run out of gas or do not all Z's have them?
Originally Posted by ChevyWeatherman
***** footing
Still in 20 range w/ 224/228 and heads, though with the recent upgrade in power the last thing I've been watching is my MPG
I'll keep an eye on it 
Originally Posted by mailman2000
hey santiago didn't you swap your g5x4 for the trex?