When a dyno tune is most effective?
07-25-2011, 07:18 PM
#1
Thread Starter
Join Date: Jul 2011
Location: PA
Posts: 4
When a dyno tune is most effective?
Hello All,
I am currently running Flowmaster 40 series catback, Off Road H-pipe, BBK Shorty Headers. 4.10 Gears, CAI and an aluminum drive shaft. Seems to be running a bit lean. I would like to get my most bang for my buck so I'm just throwing this out there. Is there anything else I should do before I spend the money on the tune?
Plus any recommendations of a dyno tuner in the philly area would be great! Thanks everyone
I am currently running Flowmaster 40 series catback, Off Road H-pipe, BBK Shorty Headers. 4.10 Gears, CAI and an aluminum drive shaft. Seems to be running a bit lean. I would like to get my most bang for my buck so I'm just throwing this out there. Is there anything else I should do before I spend the money on the tune?
Plus any recommendations of a dyno tuner in the philly area would be great! Thanks everyone
07-25-2011, 08:12 PM
#3
2nd Gear Member
Join Date: Aug 2009
Location: Nebraska
Posts: 475
Why do you think its lean what are your symptoms? You havent made any mods that would lead to a lean condition so if you are lean then it needs to be troubleshot. To dyno tune without troubleshooting would just hide a problem if you do have one. Dont put the ignition on until the possible problem is troubleshot.
Dyno it only when you are certain you are at 100%. And to be honest you havent listed anything that would require time on a dyno. Everything listed is just bolt on and not major mods. Save your money and put some more gas in the tank.
Dyno it only when you are certain you are at 100%. And to be honest you havent listed anything that would require time on a dyno. Everything listed is just bolt on and not major mods. Save your money and put some more gas in the tank.
07-26-2011, 02:53 AM
#8
Thread Starter
Join Date: Jul 2011
Location: PA
Posts: 4
I was under the impression that the more mods you do pertaining to forcing more air, the more lean the engine got. I haven't checked the plugs yet or cleaned the maf so I'll start there. I just remember when I did the exact same mods to my mach it was pinging all over the place and the dyno tune found about 30hp. I am no expert by any means, the car just feels like its starving for something when I get on it.
07-26-2011, 03:18 AM
#9
Banned
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
You haven't done any mods that "force more air". This is also not "your mach". The foxbody GUFx ECM's are a very VERY flexible system. Your maf measures the air that enters your engine. The ECM has been programmed for the flow values of your MAF and your injectors, and will constantly tweak itself based off the readings from your O2 sensors.
So if you truly think your car is lean (even though you haven't even checked). You should clean your MAF, check for vac leaks, and replace your o2 sensors.
So if you truly think your car is lean (even though you haven't even checked). You should clean your MAF, check for vac leaks, and replace your o2 sensors.
