1998 Tahoe tuner suggestions
- Thread starter nashranch
- Start date
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Marky Dissod
Full Access Member
2WD or 4WD? What's your axle(s) ratio? What size are your tires?
Is that city or highway MpG?
If you go with 3.73 (or 4.10, if 3.73 is not enough), your city MpG will improve, and your 4L60E will last longer too.
However, your highway MpG will stay the same (3.73), or may go down slightly (4.10).
If you've a 5plug or 4plug Vortec pcm, very seriously look into rewiring your harness to convert to a 12200411 pcm.
That pcm alone is worth MpG, no joke, not to mention the possibility of using a fully enabled Aussie operating system.
Is that city or highway MpG?
If you go with 3.73 (or 4.10, if 3.73 is not enough), your city MpG will improve, and your 4L60E will last longer too.
However, your highway MpG will stay the same (3.73), or may go down slightly (4.10).
If you've a 5plug or 4plug Vortec pcm, very seriously look into rewiring your harness to convert to a 12200411 pcm.
That pcm alone is worth MpG, no joke, not to mention the possibility of using a fully enabled Aussie operating system.
Marky Dissod
Full Access Member
If you're seriously interested in pcm tuning, it'd be to your benefit to improve your tuning opportunities and possibilities to the 12200411.
Joseph Garcia
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Welcome to the Forum from NH.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
Most folks here who obtain tunes are looking for more performance versus improved mpg.
I suggest that you call BlackBear Performance (@BlackBearPerf) and talk to them about your desire through a tune. Many folks here have their tunes installed.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
Most folks here who obtain tunes are looking for more performance versus improved mpg.
I suggest that you call BlackBear Performance (@BlackBearPerf) and talk to them about your desire through a tune. Many folks here have their tunes installed.
