If i get a chip burnt for my car what increases will i see in HP or quarter time improvements? My car is as follows

1989 camaro RS 305 TBI
Open element K&N
LT-1 cam
Shorty headers (headman)
no cat
smog delete

Any ideas? Also where can i get a chip burned at? Also what is the going rate for a custom chip?

 

TBICHIPS can burn you a chip but first you must datalog the info from the ECM. or you could get into making your own theres a few very common tuners out there., going to the DIY Prom board and checking out the stickys at the top of the page should give ya a good idea of whats needed.

since burning a chip is not an exact science theres no way to explain what increases you might get, since every engine is different. pricing starts $50 and on up.

 

Your running an LT-1 Cam and your still using the stock chip? The car must barley run!

If you get a custom chip that is right for your setup you should see significant gains. But beware it will take many trys/chips to get your car dialed in correctly. That's why you should probably get into chip burning yourself.

 

You really have to look into burning it yourself. Some cam swap cars run slower because of the stock tune. You can also go the tbichips.com route as mentioned above.

 

Chip burning is an exact science.
Every engine is slightly different so it takes a slightly different chip to be fully optimized, the only way to get a chip that's fully optimized for one's car is to learn how to do them yourself's. The Stickies at the DIY PROM Board give all the info about getting started.

 

cant disagree with that BUT there is a learning process that is required and i mean hours of study and then the trial and error of multiple burns and the $$$$ invested in hardware. the datalogging is imperative for a custom chip to be burned by a vendor although first burn will most likely will get you in ballpark. i would at the minimum commit yourself to learding the datalog and confirm with burner that reburns are part of net cost.

 

I thought there was a program out there that automatically sets your parameters and then you simply burn the new chip? I think NJ Speeder metioned it in one of his threads.

 

I don't believe that program does anything for WOT

 

Correct. His stuff helps dial in new parameters based off of normal driving data logs. However, you cannot get enough data points to get it perfect. The only way to tune for WOT is with a wide band.

 

I thought due to the simplicity of our electronics that a wide band O2 would be useless to the computer.

 

Oh no. WOT tuning is only achievable with a wide band. It is the only way to really deternmine air fuel ratio. Anything else is a stab in the dark.

 

So when I go to the parts store, I simply ask for a wide band O2 for a 91 camaro? or do I have to use an O2 sensor from like a 95 or something?

 

i'm pretty sure jprevost is the one with that program. also, gunny, you don't replace your o2 sensor with a wideband, you use a standalone wideband sensor. call dynolab when you're ready, he has an o2 sensor on his dyno.

 

Your auto parts store won't have one. You have to order one from a parts place like summit or jegs or anywhere else. They are about $300. There is more than one way to run one when you tune. Some guys add an extra 02 bung so that they can use the wide band yet have thier car in closed loop with their stock unit. Or you can burn a chip to stay in closed loop and plugs the wide band into the stock bung location. Check out the DIY PROM bopard for more details on wide bands. There may be a GP going on.

 

I always feel like my car is going to explode when it's on that thing. It's kind of like some people and needles. You know, how some people turn away when they get shots or something? Well, I just walk out of his garage, because I don't want to hear my baby scream like that. It's just painful to me.

 

ha ha ha ... ok gunny, after all the time you spent in afghanistan, i guess it's ok to be squeamish over a dyno.

the point is, you don't switch to a wideband o2 sensor for the stock computer, it's a completely separate operation. if you want to spend a few bucks, you can get an lm-1 wideband tuner. it's 349.00. but at 100-150 per hour on the dyno for wideband tuning, it'll quickly pay for itself.

http://www.innovatemotorsports.com/lm1.php

 

Damn, with all that money, I think I'll just hold off on any wideband tuning for a while. I'm still trying to learn all the components of the engine, let alone all that high speed, low drag chip tuning stuff.

 

Gunny: expalain your statement you replace the stock 02 with WB 02 and stay closed loop with burn of chip? did you mean replace narrow 02 with WB 02 and run open loop? i think the wide band can replace the narrow 02 and still run closed but i dont know how to reprogram the ECU(eprom) for that change in function. i do know how to run open only with no closed function. last week i just added additional bung for WB and will retain current narrow 02 sensor and just use my new toy to verify AE and PE. now that said i was able to get the VE fuel tables accuraate b4 the WB 02 run and since VE were in line the PE was 12/1 on dyno. so if you do your homework on fuel tables and constants the pe takes care of itself as a net result.