165 MAF computer

[Greg Westphal]

I saw 160 gps out of my internally-stock 305 with the small stock cam,
headers, 3.42 gears, and all the little mods.  My best time at the track
last fall was 14.86 @ 91.0 mph, and it dyno'd this spring at 172.5 RWHP
and 277 lb-ft of torque, and it was down 30-40 horsepower from last
fall.  I know I've seen guys with built 350/383 engines peg the MAF at
255 gps, plus (as someone else mentioned) it's set up in the code to be
the max due to the hexidecimal system.  With my 355 I just installed,
I'm curious to see if I can peg my MAF meter too. :-)

Greg Westphal
'87 IROC

"Marteney, Steven J." wrote:
> 
> I'd like to believe horsepucky too but here's what recently happened to me.
> I did a full-throttle run, no track just empty run, and a bud watched
> Diacom.  The reading never went above 175gps.  I'm in the same boat this S10
> guy is in.  Lots of mods "the thing should just fly" but my performance
> sucks.  Granted I also suck at tuning which is slowly being corrected.  I've
> used the HomeDyno/StreetDyno programs and it says I'm making 266lb-ft of
> torque peak.  I then ran those curves into a drag simulator (that I'm
> writing myself) and it predicted mid-15 second times.  I work at place on a
> back-road that just happens to have two stripes 1/4 mile apart.  Had a
> friend time me with a stopwatch (in the car and he weighs 300+lbs) and the
> car did 16.2 at about 85+ on the speedo.  Pretty crappy for an 89 TPI
> Formula ZZ3 cam, SLP 1 3/4" headers, RandomTech cat, fully balanced,
> flat-top pistons, flowmatched injectors, K&N filter.  Never seeing the MAF
> reading go above 175gps makes me suspicious.
> 
> Steve
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