Topic: Hypertech Power Chip
in Forum: C3 Fuel, Emission Control, and Exhaust Systems
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Stanley, NC - USA
Joined: 8/9/2010
Posts: 91
Vette(s): 1981, dark blue w/carmel interior. 350 stock, auto tranny, Q-jet carb, ECM box
1981, 350 Stock engine. Are any of you running the Hypertech Power Chip, Street Runner version, with your still factory setup CCC and ECM? I have one, ran it for a while but did not notice that much difference but now have new engine in so wondering if worth the effort to swap out chips again and see what she'll do now?
Any of you have good or bad words on these chips? Also does the check engine light system still operate correctly with power chip in?
Tommy
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I never thought those things were worth the money. It's not like the computers of today where you can totally change your engine's setting, and make huge gains.
Dave
Lifetime Member #116
Dave's '82 
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Duncanville, TX - USA
Joined: 11/8/2003
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
On the '81, the Hypertech proms only control the fuel mixture at idle, and the timing at wide open throttle...that's it. You might actually be able to notice a difference(from stock) when you nail it, or you might see a slight improvement in 60ft times at the drags. For a street engine, about the only thing that will be different is the idle, and possibly emissions testing. Imho, not really worth the $$$, unless you just happen to need a new prom.
I have a Hypertech prom in my '85, but it's fuel infected, and pretty much all computer controlled. It does make a bigger difference for the later cars....it just doesn't really do anything on the '81.
Oh..yes, the check engine light will still function the same with the prom...that doesn't change.
|UPDATED|3/6/2012 8:54:17 PM (AZT)|/UPDATED|
I have a Hypertech prom in my '85, but it's fuel infected, and pretty much all computer controlled. It does make a bigger difference for the later cars....it just doesn't really do anything on the '81.
Oh..yes, the check engine light will still function the same with the prom...that doesn't change.
|UPDATED|3/6/2012 8:54:17 PM (AZT)|/UPDATED|
Joel Adams
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in Forum: C3 Fuel, Emission Control, and Exhaust Systems
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