just noticed this today in summit.

from summit - "This throttle position calibrator will eliminate annoying hesitation when you mash down your throttle. It simply plugs into your throttle position sensor and helps throttle response. It will enhance the performance of any computer chip, module, or programmer (stock or aftermarket). "

the price is 89.95... anyone have any experience with this or anything like it?...

thanks
mike

 

Check out the article in the latest CHP mag. They show you how to build one. A DIY TPC.

 

CHP.. California Highway Patrol? <grin> ... no, of course you mean Camaro High Performance... hehe, not all of us buy the magazines on a regular basis.. you able to scan a copy of the article and mail it?

Tyler.

 

007,

I don't think I've read Camaro High Performance but I have read Chevy Hi Performance. Remind me tomarrow and I'll scan the article and e-mail it to you.

 

Chevy == Camaro... Camaro == Chevy.. they are synonymous <grin> my bad

Tyler.

 

All it does is send a false signal to the computer that it's at WOT when it's really not so that it goes into Power Enrichment sooner. If you're already burning your own chips, you can modify the %TPS that the computer goes into PE mode. The stock settings are typically around 50-70% for normal coolant temps (not hot, like above 248 degrees F), but I've lowered mine down the 20-50% depending on RPM since that's what my engine likes.

 

That'll work

 

i have one i think it works but i think it shorted out steve can u email me that article thanks

 

Can you send me the article??? Please.

 

can someone forward that to me PLEASE ?? brianmoyer89@hotmail

 

Can someone tell me how I can scan this article and e-mail it with out taking half the night to do it. I tried to convert the scan to a jpeg format but it took almost an hour to e-mail one page. I'm open for suggestions.

Steve

 

i was gonna say adobe acrobat but i think the acrobat publisher costs money...

 

If you have a scanner... do you have a program that does OCR (Optical Character Recognition) .. basically, it reads text off the pages you scan.. into a program like word or something. Omni Page is one program I know of... either that, or do the Jpeg's like you did, but make sure they *ARE* actually jpeg's... since most scans are *.TIF by default.. and you have to save them as jpeg or gif format. You can also then use ACDSEE32 to change the sizes/crop etc, the jpeg's...

Tyler.

 

Sorry everyone but I can't get the pages of the artical scanned they way they should be. If you have a fax # I could try it that way.

Steve

I guess you could just borrow it from a friend or go to the magazine stand an see if it's worth buying.

 

Is it just me or couldn't you just set your tps at a higher setting so it would reach power enrichment quicker I personally don't set the tps with a scaner or a volt ohm meter I set it by sound and responce of the engine and have never had a problem. I just play arround with it and raise it untill I get it to rev quickly without any hesitation

 

Nope, that won't work since the computer will recalculate the percentage range of the TPS (well, the % range of the throttle opening) and you'll back to where you were before (won't hit PE until the throttle is X amount open). I'm surprised that you haven't gotten an error code for too high or too low of a TPS value, but that error range is quite large.

 

I have set many cars like that and have never had a error code. If I set a car to the stock specs it ends up having hesitation and low power if I set it by ear and how the the car responds to the change in the tps. Well I guess it is just one of those things that I have been lucky with.

 

Yup, you've been lucky. This pissing around with the TPS is the one of the dumbest things to do. It all started 15 years ago when people didn't understand what the ECM/eprom really did and people attempted to use "mechanical methods" to overcome "programming issues" with their EFI cars.

Today, we KNOW what is happening inside the eprom. The only thing you do is set the TPS to the proper minimum setting and then adjust the "%TPS to Engage PE" table inside the eprom to where you would like the ECM to engage PE, just as Greg said.

Also, once the ECM detects a %TPS setting greater than the setting in the table Greg and I mention, any ADDITIONAL voltage DOES NOTHING. (Well, I lie...it can throw an SES code like Greg mentions if it exceeds a certain level).

There is some mistaken belief that IF you can give more VOLTAGE to the TPS that you will get more power. This is ABSOLUTE CRAP! You should also buy the Tornado while your at it - since you are so willing to part with good money.

My advice, instead of monkeying around with that stupid device and risk screwing up a perfectly good TPS or possibly causing a problem (or even frying) your ECM - save your money and buy the eprom burning equipment and DO IT RIGHT! Then you can do even MORE THINGS that will make some REAL POWER instead of these "goof ball mechanical tricks" that don't do anything.

What you are attempting to do is the same as plugging your home computer into 220 Volts and expecting it to run "twice as fast" as your normal 110 Volts. Sorry guys, but it doesn't work.

Listen to Greg.

If you REALLY want to part with some money, just mail it to me and Greg. We'll put it aside for you to buy some eprom burning equipment.

 

Well I don't believe that you get any more power from making the tps go to wot quicker it just seems to give me more responsiveness from the engine. It has always worked for me I dont' know everything so you might be right but I do what works for me I have had no ill effects in 10 years of working on tpi cars

 

That's our point, we've learnt A LOT in 10 years. The number of "tried and true" mods guys use to do 10 years ago that are now being proven to be wrong is amazing.

The relocated MAT - useless on a MAF car, requires massive changes to the eprom on SD cars to work right.

Cranking up the fuel pressure with an AFPR on a basically stock engine. Yes, it does promote better atomization, but the stock eprom on a basically stock engine is already too rich so you are just making your engine overly rich. To run the higher fuel pressure you need to modify the eprom (and the fuel tables) to get the full benefits.

Cranking up the spark advance of the base timing. Yes, it will increase part throttle response but it usually causes knock to be detected and can often end up yanking more timing out than the spark advance you initially added - thus you end up going slower. The proper thing to do is to rework the spark tables and sometimes you have to control the knock sensor to get the optimum amount of timing for max performance without causing detonation.

Swap in a 160* T-stat - this causes a lot of problems and results in a car that doesn't get warm in winter, burns gas needlessly and introduces a lot of problems like disabling the IAC learn....unless you modify it properly in the eprom.

The list goes on and on. Just like some old timers will ONLY run a carb and despise EFI, many "younger" EFI guys are afraid to give up their "tried and true" methods, which are actually "myths" once you dive inside the eprom.

There is a saying in computers "Garbage IN = Garbage Out". Guess what you are doing to the ECM when you give it a false reading? Yup, garbage in.

And now for the last myth - programming an eprom is hard. I probably could show you the "actual mechanics" of how to burn an eprom in less than 1/2 hour. What takes time is to learn how to tune it. But that is what us guys on the DIY Prom Board are doing...helping each other with the "tuning". FYI, very few of the guys on the DIY Prom Board have been doing it very long. I would say 90% have been doing it less than a year and probalby 75% less than 6 months. Only a handful of us have been into eprom burning more than a couple of years.

Another myth, it's expensive to get into eprom burning. Nope, in fact it is cheaper than most custom eproms. And those "off-the-shelf" eproms like Hypertech, ADS, SLP and Jet (to name just a few) are basically useless.

Once you REALLY get into eprom burning, you are going to be amazed what the ECM can REALLY do, and what it cannot. And, after a little time, you too will see how many of those "tried and true tuning tips" are complete hogwash and you may even wonder how in the hell the ECM even ran half right with all that junk (TPS enhancers, relocated MATs, 160* T-stats, etc) even ran. You can chalk that up to the "flexibility" inside the eprom to compensate for those hunks of junk.

They are as useful as a "Tornado".

 

what thermostat do you recommend?

 

hi, what issue of Hi Performance Chevy was that in? let me know asap thanks!

 

April 2002