Power or speed chip question....

[nic walker]

Anyone have any experience with the below type of power chip???? Wondering if it will be worth the $ by using just the chip itself and not combining with other modifications.
Maybe Two Seater can comment if he is out there....

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Jet Performance Chips Power Control Module (PCM)

Every Day Low Price: $230.95 - $237.95

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Description:
Unleash the high-performance potential of your engine and say adios to sluggish factory settings in less than half an hour with the Jet Performance Power Control Module. Jet?s Dynamic Spectrum Tuning (DST) optimizes air/fuel ratio, spark timing, transmission tuning and various other parameters for maximum horsepower and torque.

Jet offers their Power Control Module (PCM) in two styles for most vehicles: Stage 1, for original stock engines; and Stage 2, for the modified motor with performance air intakes, headers or exhaust systems already installed. Even on souped-up engines, The Jet PCM adds serious horsepower to your driving (see Related Images for vehicle-specific gains).

Jet?s expert engineers use their decades of fine motor tuning to help you discover what hidden power lies beneath your vehicle?s hood. Your Jet Performance Chips PCM is legal for cruisin? in all 50 states and boasts a Lifetime Warranty.

Features:
? The Jet Performance Chips Power Control Module is custom-made and programmed for your vehicle


? Blow stock settings away off the line?The Jet Chips PCM tunes your engine with more advanced programming to harness your vehicle?s full power


? The Jet PCM greatly boosts horsepower?see related images to find out how much it can help your vehicle


? Get faster acceleration, better 0 to 60 times, and boosted towing power without burning extra gas


? The Jet Performance PCM is available in 2 stage models for most vehicles:


? Stage 1: This Power Control Module (PCM) is designed for stock engines with no other modifications. The Jet Stage 1 PCM is programmed to maximize power increases based on stock parameters


? Stage 2: This Power Control Module (PCM) is designed for modified vehicles with low restriction exhaust and low temperature thermostats. Unit takes advantage of these modifications and pushes your engine for maximum power


? The Jet Performance Module Chip offers quick, easy installation in less than half an hour with no warranty-voiding seal breaking or other modifications


? To return to your factory settings, just unplug the Jet Performance Module


? Won?t void your warranty?the Jet Chips PCM has been thoroughly tested not to damage your engine components


? The Jet Chips Power Control Module is legal in all 50 states


? Your Jet Performance Power Control Module is backed by a Lifetime Warranty


Notes:
? Please see Related Images (above) for your vehicle-specific horsepower gains.


? Stage I or Stage II may not be available for all makes and models. Please select your vehicle to determine availability.


? Jet suggests using 91 or 93 octane gasoline to achieve stated maximum power gains with the PCM

[MauiWowee]

Here is the last discussion:

http://forums.aaca.org/showflat.php?...=292063&Forum=

[padgett]

In the words of BB "What a maroon".

The limiting factors of the 3800 "C" engine are mechanical: intake, cam, exhaust.
No electronics are going to help with those. Mostly PROM chips bump the advance curve
(why they require premium which has no more power than 87) and degrade the knock retard sensitivity. A bad engine may "feel" better temporarily.

My PROM is improved but did not touch mixture or advance maps and 0-60 is 8.4-8.5 seconds
(G-Tech Pro) mainly because everything is "right" (have replaced the Magnavox ignition with a Delco).

"Chips" can do some things and can mask others but not in this particular combination.

Looking closely this does not even say it is a PROM but rather a "module" so
I do not know what it is but the words are long on words and short on specifics.
Wonder if their graphs have any numbers

[F14CRAZY]

Some chips do modify the auto tranny shifting points, but would only on a '91 Reatta because all others had hydraulic transmissions without really any electronic control. Though I guess a few late '90s had the electronic tranny too.

[2seater]

By itself, it will make a marginal improvement, but the downside is premium fuel is required. The stock chip seems pretty well matched to the stock system running on 87 octane. You may even see a degree or two of knock retard at the shift points with the stock system meaning it is close to the maximum performace for the system (a good thing). With premium fuel, I found you must dial in a fairly large increase in ignition timing lead to restore the stock type of "snappiness" in the throttle response. A more useful change in the chip, even for the non-electronic transaxle, is to lower the cooling fan program to match a lower temp. thermostat and eliminate the TCC lockup completely in third gear, and raise the 4th gear TCC to 55 mph or so. In the type of driving I do, I find this helps engine response buy keeping the rev's a little higher in semi-urban driving without really hurting the highway cruise manners. Even with all the fooling I have done to my system, running way cool at 165*F, 30# injectors and the turbo, I still see 25-26 mpg in my daily 70 mile commute. The JET reference to a PCM is for later model cars that have discrete ECM-BCM of our cars integrated into a single Powertrain Control Module.

[nic walker]

Thanks for the input gentlemen....educational and appreciated. My curiousity is satisfied and better judgement wins with the word "stock" .

Nic

[EDBS0]

I think that you have to look at the bottleneck in the intake air horn and the exhaust manifold casting that padgett has posted a photo of. The engine is an air pump and if you have the intake choked off and the exhaust manifold choked off no electronic chip in the world is going to help. Go back to the basics. Fix the intake and then fix the exhaust. Just my 2cts.