It bet it would really wake up with the headers/y-pipe. The replacement
Y-pipe on my 92 V-6 isn't as good as the stocker... it cost me 2tenths right
there.
MikeMeyerhoff
>
> My '93 5.2L CC auto:
> DT Tri-y's
> 3" Dynomax cat + 3"->2x2.5" UltraFlo exiting in front of my passenger tire
> R&D Underdrives - full set
> F&B Stage 1.5 Prototype
> Magnecore wires
> 8.75" w/4.10s + half trashed SG
> K&N FIPK
> 4050lbs sans driver
> ~133k miles
> 255/60R15s
>
> With electric fans it ran 15.5s (2.44 60', sigh) @ 91-92mph.
>
> My '98 5.2L CC 5spd has the 9.25" with 3.92/SG and is completely stock with
> 235/70R15s and 16,500miles. Not sure on the weight, but it's heavier for sure
> - maybe 4200lbs? At any rate, although the '93 has bolt-ons, it's MUCH MUCH
> faster feeling than the '98. I don't remember my '93 being this slow stock,
> but that was 7 years ago. Are the bolt-ons worth that much? The '98 just
> feels doggy. The '93 revs up fast, rips throught the frist couple gears, and
> requires little effort to maintain 70mph. The '98 revs up
> slooooooowwwwwwwwwwww and I have to give it a fair amount more throttle to
> maintain 70mph. Are the GenIII's that much slower or is there a chance
> something is wrong with my '98? One thing for sure is the exhaust on the '98
> is pathetic at best. The y-pipe is miniscule, maybe that's a large part of the
> problem? I was thinking of getting a CAI, TB, headers/cat-back, and an
> electric fan... The power just isn't there, and the mpg doens't seem to be
> there either. Maybe a flush hard tonneau if it'd help with mpg, too.
>
> I was hoping it'd do much better on the mpg front. Especially since it's a
> 5spd and has a tiny bit less gear. On my first tank it got 15.0 mpg with mixed
> driving and with about 50 steady highway miles. That's terrible IMO. The '93
> gets ~16 mixed only and used to get 16/22, but now maxes out at about 19.5
> highway due to age and the stock clutch fan being put back on I'm guessing.
>
> Not that I'm expecting super acceleration and hybrid style mpg, but I'm kinda
> disappointed at this point. Anybody got any ideas? Or is this pretty much
> what to expect?
This archive was generated by hypermail 2b29 : Sat Jan 05 2008 - 19:13:05 EST