View Full Version : Need tuning help.
Blackbird6
02-21-2016, 12:15 PM
96 Pontiac Firebird formula ws6 lt1 t56. 383 engine 12to2to1 compression cc306 cam 42lb injectors. 1 7/8 headers. Im having a problem with the car running rich and fouling the plugs. I changed all the constants in the tune that i can figure out. Was wondering if anyone can point me in the direction on what to do to get a leaner cold start. Or if anyone has a tune i can compare my numbers to. Im going to install a wide band air fuel gauge in day or so. I dont have any data logging stuff yet except torque lite app. This is my first time trying to tune a fuel injected computer car. If i can't figure it out. What does a online tune cost . Thanks.
Camaro96
02-21-2016, 01:34 PM
We have a tuner on the for MoeHorsePower contact him and he can do a great tune for you.
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popo8
02-21-2016, 08:08 PM
Moe knows his stuff... contact him.
LTXtech.com IS my drug...
OWNER/ADMIN
Blackbird6
02-21-2016, 08:24 PM
Do you guys know a ballpark price what it cost for a tune. Money is tight at the moment after what i just dumped into the build. Thanks for input.
Fastbird
02-21-2016, 08:51 PM
96 Pontiac Firebird formula ws6 lt1 t56. 383 engine 12to2to1 compression cc306 cam 42lb injectors. 1 7/8 headers. Im having a problem with the car running rich and fouling the plugs. I changed all the constants in the tune that i can figure out. Was wondering if anyone can point me in the direction on what to do to get a leaner cold start. Or if anyone has a tune i can compare my numbers to. Im going to install a wide band air fuel gauge in day or so. I dont have any data logging stuff yet except torque lite app. This is my first time trying to tune a fuel injected computer car. If i can't figure it out. What does a online tune cost . Thanks.
Please take this with a grain of salt when I say "STOP WHAT YOU'RE DOING AND DON'T TOUCH IT AGAIN UNTIL YOU ARE PROPERLY PREPARED FOR TUNING." Trying to tune the vehicle based off plugs alone is not going to get your anywhere. You need to be able to data log and look at real time data. You need to be able to see what your AFR and Timing are doing. You need to see where sensors are running and what data they're sending back. You're trying to do all of that freaking blind. You're not going to get anyone to just hand you over a tune, simply because for one, it's their own hard work, and two, unless the setups are VERY similar, it would be a crap shoot anyway. If you've NEVER tuned an EFI vehicle before, my suggestion would be to work with an online tuner (Moe is our sponsor here, good work, very reasonable prices) to get the vehicle done. You can learn yourself over time once it's all dialed in, seeing what affects what in SMALL incremental changes, but trying to tune a new setup with no experience is asking for bad things to happen.
popo8
02-21-2016, 09:43 PM
Do you guys know a ballpark price what it cost for a tune. Money is tight at the moment after what i just dumped into the build. Thanks for input.
That money to get a proper tune is whats going to make the money u dumped into the build worth it. In fact its also gonna save it from being a pile of trash when u hurt the new build.
LTXtech.com IS my drug...
OWNER/ADMIN
Camaro96
02-23-2016, 05:54 AM
Moe will do a mail order tune on Naturally Aspirated for around 150.
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Blackbird6
03-03-2016, 11:25 PM
Thanks everyone for your replies. I recently installed my guages so i can see the af wideband and adjusted some things and got the car running 100x better. As you guys said i definitely need to get data logging software to see sensor feedback. My plan was to get the car running good enough and eventually get to a dyno to tune it better. thanks again.
Nostang 96z
03-14-2016, 06:57 PM
Be very careful with that compression on pump gas. Might want to run some 260gt plus or 110 while doing the initial tune. Also, make sure your plugs are not too cold. As said above, without data logging you are tuning blind and could hurt something. Do not think about WOT pulls until you idle and part throttle is worked out. Your VE's at under 2k rpms with probably be somewhere in the 30 range. not sure what computer you are using so you might not be able to change the VE table. You can probably start with the timing 25 at idle and go up to 32-34 above 3k rpms. Be careful if tuning yourself but I would get a good base tune and fine tune through data logging and then running at the track.
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