LT1 Tune

[badinfluence]

Anyone know anybody or any place in the Lansing area for tuning a LT1?

If not lansing then I can go to Grand Rapids or Detroit as well.

I'm guessing my TA never got a good tune after it was built up so I want to get it tuned good

[badinfluence]

I would do a mail-in tune but I do not know the specifics of the cam/engine build so I wouldn't know what information to give them.

Can it be dyno-tuned without knowing the specifics of the engine build?

[JoeliusZ28]

if you have the desire to learn you can tune a car on your own. this is what im going to do with mine in the spring, or maybe even this fall.

[badinfluence]

if you have the desire to learn you can tune a car on your own. this is what im going to do with mine in the spring, or maybe even this fall.

do you have any links to write-ups?

What is the cost of software and equipment needed to tune it yourself?

I have no experience with this kind of stuff buy I am willing to learn!

[JoeliusZ28]

do you have any links to write-ups?

What is the cost of software and equipment needed to tune it yourself?

I have no experience with this kind of stuff buy I am willing to learn!

-you need a datacable, $90 from AKM for a good USB one (i recommend the AKM cable because it comes with a driver)

-you need a wideband A/F sensor, not sure how much this is but its more than $100 i think. i need to look into this myself

-a laptop

-tuning software - tunercat has a free 30 day trial but you need to pay for the $20 definition file either way, so probably about $100 total in tuning software.


...its something you have to want to do to be worth it. but if you learn everything you'll be able to tune your car really well.

[badinfluence]

hmmm

I got quoted like $400 for a full dyno-tune for my old V6

Looks like supplies for doing it myself would be nearly $300 and I know I wouldn't do as good of a job...I kind of figured I would save alot more money than that.

I have time, the car is in for winter so I'll think about the options...

[JoeliusZ28]

hmmm

I got quoted like $400 for a full dyno-tune for my old V6

Looks like supplies for doing it myself would be nearly $300 and I know I wouldn't do as good of a job...I kind of figured I would save alot more money than that.

I have time, the car is in for winter so I'll think about the options...

you wont do as good of a job the FIRST time. but as you log and redo your tunes over and over and experiment with different stuff, it will likely eventually be better.

[WMCCjames]

Tuning your own vehicle can be very rewarding

[Phantom409]

I got my stuff form http://www.moates.net/
Craig the owner is realy helpful and can hook you up.
You can get Tunner Pro for software.
I have Tunner Pro & Tunner CATS and the both work fine but I like CATS better.
For data loging you can get a free trial of DataMaster but you would need a laptop and cable to do this.
The DataMaster will read your O2's and more and you can print out what you did.

Anyone who does a tune to your your car is going to need to know the cam specs and LSA to do a tune.

[badinfluence]

Anyone who does a tune to your your car is going to need to know the cam specs and LSA to do a tune.

That is a problem then.

There is NO WAY to tune a car without knowing all the specs?

[MattODoom]

The wideband sensor will run you about $300.

Here are some brands to look into (off the top of my head):
PLX Devices
AEM
Innovate
Zeitronix

I have the AEM one myself. The controller is inside of the gauge, so its just a gauge with o2 sensor, there is no controller box seperate. Some of the other ones like the PLX, Innovate LM1/LC1 etc will just output a signal then you need to also add in your own display.

[Phantom409]

The specs of the cam are what tell them how much fuel & how much air your motor needs and when it needs it.

The way a tunning prgm looks when you open it is like an Excell spead sheet.
0-100 across the top and 0-7500 RPM down the side.
In each square there is a # that tells it what ratio to fire the Injectors and how long and how much air so it don't lean out.
The duration of the cam also tells them when to fire each cylinder and how much retard and advance you need in your timing.
It also contrls MAP and MAF controls, ther is quite a bit of math that goes into it.
There are many Variables that can be done.
It may be posible but to get it tuned will cost you BIG $$$$$$$$$ and you will need a dyno to do it or you could have a big BOOOOM or a melt down.

I did a tune from http://www.pcmforless.com and then tweeked it in from there but they need to know cam specs like I said before.

[Phantom409]

How/Who did the swap on your cam??
Did you buy it that way??

[JoeliusZ28]

if youre tuning yourself you shouldnt need cam specs. drive it to find out what its doing and make adjustments until youre getting a 14.7:1 A/F ratio.

[badinfluence]

Yea I bought the car w/ the engine work.

I'll look into it when I have money...which will be awhile, hopefully before spring tho.

I'm pretty sure it hasn't been tuned b/c the car came w/ a hypertech programmer which has no advanced engine tuning options