How much more power would I produce going from a hypertech thermpmaster chip to the jet stage two chip. I have a low temp thermo and a freeflowing exhaust.

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91' red RS convert.
71,000 miles
89' IROC hood
red Z-28 16" rims
potenza re730's
MSD ignition
MSD coil
K&N fiter
350 ported polished heads
hypertech chip
flowmaster 40 series cat-back

 

No chip is going to really do a whole lot power wise. A good aftermarket chip might produce 2-3 hp or so in our cars. That being said going from a hypertech to a JET will probably get you a gain of about 6 hp. Hypertechs are notorious for doing things like actually retarding timing. I have a JET stage 2 and have no problems with it. No real SOTP difference, but it'll probably help out more when the engine gets more mods...

 

The best thing to do is get a custom burned chip. That way you'll get that 10 HP or so from it; I'm going to get one myself as soon as I get that Edelbrock intake I've had my eyes on. Try www.fastchip.com, I hear the guy there burns the bestest. It'll cost ya $350 bucks though.

 

i am currently running a jet stage 2 . makes a little difference not alot. as soon as i get all my mods done, im saving for a custom chip.

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91 camaro RS
- 305 TBI
Mods: Performer TBI intake, 1" TBI spacer, K+N, jet fan switch ,160 thermo,Accel control module, Jet Stage 2 chip, edelbrock TES headers, Compleate 3" Flowmaster exhaust, Edelbrock springs, KYB struts and shocks, 700R4 built by TSI, SLP tq converter, b+m trans cooler, white guage faces, megashifter..
next month: spohn LCA's and panhard rod, BMR relocation brackets, 323 gear, lt1 cam , 350 heads

 

NOT TO START A RIOT OR SOMETHING BUT I WOULD PUT MY JET STAGE TWO AGAINST ONE OF FASTCHIPS "CUSTOM" CHIPS ANY DAY FASTCHIP IS A POOR EXCUSE FOR A CUSTOM CHIP. UNLESS YOUR RUNNING N.O.S. OR A SUPERCHARGER THERE A WASTE OF MONEY. I HAVE TRIED A FASTCHIP CUSTOM AND THE JET ON A DYNO THE JET WAS BETTER ALL THE WAY THROUGH THE PULL, IF YOU DO GO WITH A JET RUN A LOW TEMP FAN SWITCH AND A 180 T-STAT 160 T-STAT RUNS IT TO RICH. AND A STAGE II JET ADDED 10-13 REAR WHEEL HP DEPENDING ON TEMP.

 

here is your riot. buy all the chip burning stuff for under 300 and do your own, besides if you plan on going with more mods, you can get free updates. FROM YOUR SELF.

no aftermarket chips are worth their money, and 350 for a custom is ok, but only if your car is done and you dont plan on any more mods, and who's car is ever done. really. do it yourself. took me 8 chips to get my stock l03 feeling good again.

 

I was told that we couldn't program chips without swaping the computer. If we can do it with the stock setup, tell me what I need to have that works with the tbi setup and I'll start the learning process.

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1989 Firebird Formula L03
Black with 5-Speed
Stock with Functional Formula Cowl Induction, Centerforce Clutch, KYB GR2 struts and GAJ shocks, 89k on the clock and running smooth.

 

Look at the tech articles for the one about prom-burning. You need that equipment. My dad's successfully done several TBI setups now.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

up until a few months ago, you couldnt program a new chip for the 8746 ecm, which is a lot of our cars. the ecm has been hacked and now you can. no problems