hypertech programmer

[trailblazer_2001]

I have an 01' blazer and I have bigger tires on then stock. I wanted to know if I bought a programer that can re calibrate my tire size if it will give me any extra power off roading.

Thanks,

[Sparky2263]

A programmer can give you more power but at the expense of fuel mileage.

The dealer can re-program your computer for different size tires. Talk to the driveability guy directly and if he's cool you'll probably get out for anywhere between free and 30 bucks.

[rat]

How will a programer hurt fuel economy? The hypertech doesn't do anything at part throttle. A good mail in place could improve part throttle fuel economy, by bumping the timing a tad. The wot can be programed for maximum power also.

The hypertech doesn't change much. It leans out the pe slightly. It advances the timing a little at wot, and that is it power wise.

For tranny stuff, it can shange shift points, and it changes the force motor current to change line pressure and that makes it shift harder.

[Sparky2263]

To make more power, one of two things must occur. Either make the engine more efficient, i.e., advance timing on a spark curve that isn't maximized, pull down egr, etc. Or, add more fuel so that even more timing can be advanced which results in a decrease in mileage.

Most guys, when opting for programmers, want the max they can get out of it choosing the premium unleaded option which dumps more fuel. After all, the ability to burn more fuel is the shortest route to power.

But, the increased efficiency method works also. That's why I like things like headers, cold air intakes, roller rockers, etc.

I wouldn't spend the money on a programmer 'til I had those type of things done. IF all I was needing to do was correct for tire size.

[rat]

Or, add more fuel so that even more timing can be advanced which results in a decrease in mileage.

That is where you are wrong. I have seen, and compared the hypertech tune to stock with tuner cat. It Leans you out, you make more power when you are leaner. It also advances the timing. It only leans you out in pe. It only advances timing above around 90kpa.

The hypertech does nothing with the maf tables, or the ve table. GM programs our ecm's a little on the rich side in pe, so you will see some gains by leaning it out a little. Even if you did program more fuel at part throttle, the computer would then pull it using the o2 sensors. Remember the computer is trying to keep the a/f ratio at 14.7:1 at part throttle. So, you don't loose any fuel economy there.

Dumping more fuel without more air is useless, and you will loose power that way. Unless we are talking forced induction, then what you said is exactly true, you need the fuel to keep combustion temps, and detonation down.

[Sparky2263]

I think we are arguing the same point different ways. You are saying the programmer makes the engine more effecient as far as timing/fuel tables go. I agree that makes more power. But, when you choose the premium unleaded option (as most do) the programmer increases fuel rate, and timing, to acheive max power increase.

That said, I'm not real impressed with programmers as a stand-alone hp increase. For the money spent, more power can be had elsewhere. BUT, as an enhancement to mods done, then a programmer, as necessary to the mods done, can be a real hp improver.

Bottom line? To make serious power, ya' gotta' burn more fuel.

[Joker2040]

I have a HPPIII for a 2001 4.3L if you want it shoot me a PM.

[Sparky2263]

I have a HPPIII for a 2001 4.3L if you want it shoot me a PM.

Bada-bing!

[Maximus]

For the money I would look in to getting a editing software like Tuner cat or since yours is a 01 LS1 edit is a option to.I have been tinkering with HP tuners that came with my TA.I just programmed mine a few days ago to be speed density instead of MAF and I much more prefer speed density.But anyway go for a editer over a programmer but if you do go for a programmer Joker seems to have one handy now lol.

[Joker2040]

Max you better not be laughing at me buddy.... I'll smoke you with my Jetta... HAHAHA!!

[dave coombs]

from what i understand power programmer will increase voltage at wot ,,,making timing curve better ,,,has anyone heard of casper electronics . they make a device that plug into tps and causes it to have more voltage at wot . I have noticed that in 4.3 automatic trucks when u nail the throttle there is an instant dead spot
(bcause computer is trying to catch timing up)this devices eliminates this flat spot. im gonna try one its a quarter of price of a programmer. Im unsure now but i bet this will do just as good. we will see

[T Man]

you can do the TPS mod if you want. Its free and I believe it does the same thing

[rat]

from what i understand power programmer will increase voltage at wot ,,,making timing curve better ,,,has anyone heard of casper electronics . they make a device that plug into tps and causes it to have more voltage at wot . I have noticed that in 4.3 automatic trucks when u nail the throttle there is an instant dead spot
(bcause computer is trying to catch timing up)this devices eliminates this flat spot. im gonna try one its a quarter of price of a programmer. Im unsure now but i bet this will do just as good. we will see
The throttle position sensor has no affect on timing. The map sensor has the most control. Then there are things that can pull timing out of the main table, like knock sensors, high iat temps, engine coolant temp ect.

Programers do not change voltages. They might change trip points, but actual sensor voltages are not affected by ecm changes.

Doing the "tps mod" will do two things for you. It will make your truck down shift sooner. And you will enter PE at a lower tps angle.


A programer can alter the timing, fueling, and actual shift speeds. The tps mod you are stuck with the stock values.

[T Man]

I stand corrected

[20Xtreme02]

While most of the Hypertech programmer changes are effective only at WOT, Superchips states that theirs are effective throughout the full range of the throttle. Another advantage to the having a programmer is to be able to read trouble codes, increase shift firmness and shifting points. You can do more than increase fuel burn and adjust for tires sizes.

[badasS10]

Anyone know the superchips part # for a 1997 4.3? And how does it compare to the hypertech? I am looking to get one for Christmas but can't decide which is a better unit. I'd imagine the Superchips unit would be best, since reading the post ^^^. I appreciate any help. Thanks.