Do i need a new tune?

carlos · February 19th, 2009, 04:30 PM

The first time i got my car dyno tuned was when i installed the supercharger. Everything else was stock. I have now a O/R X pipe and a roush side exhaust and a MAFIA. I also went from a 3.6 pulley to a 3.33. Adding a 75mm throttle body and plenum. Do i need a whole new tune or do i just need the existing one adjusted or just a wide band? I just dont want to get screw as far as price goes.

thanks

bottlefed02gt · February 19th, 2009, 05:47 PM

Well a wideband is always recommended, because you never know what kind of effect the weather and other things will have on the tune. I would think your tuner would be able to just tweak the current tune, which shouldn't be too much. I would definitely stay out of boost until you get a wideband and/or retune since you have added quite a bit of stuff since your first tune.

~C~ · February 20th, 2009, 11:18 AM

Whoa dude. You did all that with out a new tune? How's she running?

Yes you need a tune. If you are running a chip then you need it retuned but if you have a tuner, go to the place you had it done and have them update it. You need the tune updated with the pulley, and everything else......

carlos · February 20th, 2009, 03:14 PM

Originally Posted by ~C~

Whoa dude. You did all that with out a new tune? How's she running?

Yes you need a tune. If you are running a chip then you need it retuned but if you have a tuner, go to the place you had it done and have them update it. You need the tune updated with the pulley, and everything else......

i did all that minus the pulley. i will install it a day before the dyno tune.

Trick Tuners · February 20th, 2009, 04:50 PM

The mafia should be the only part that needs a tune. If there was sufficient range during the dyno tuning, you may be able to add more boost without retuning, but you need a wideband for sure to know. DO NOT add the mafia without retuning or it will jack everything up! I set up my tunes so that if the customer does add more boost than it was tuned for, it will be on the rich side instead of the lean side. But then there is the danger of a pegged maf if they were already close to the limit.

carlos · February 20th, 2009, 09:11 PM

good to know, thanks guys

February 19th, 2009, 04:30 PM	#1
carlos Regular Join Date: Nov 2007 Posts: 179 iTrader: 1 reviews	Do i need a new tune? The first time i got my car dyno tuned was when i installed the supercharger. Everything else was stock. I have now a O/R X pipe and a roush side exhaust and a MAFIA. I also went from a 3.6 pulley to a 3.33. Adding a 75mm throttle body and plenum. Do i need a whole new tune or do i just need the existing one adjusted or just a wide band? I just dont want to get screw as far as price goes. thanks __________________

February 20th, 2009, 11:18 AM	#3
~C~ ~C~, The Other White Meat! Y2K YellowJacket GT ~TBD~ Join Date: Jun 2008 Location: West side B-More Posts: 1,697 iTrader: 2 reviews	Whoa dude. You did all that with out a new tune? How's she running? Yes you need a tune. If you are running a chip then you need it retuned but if you have a tuner, go to the place you had it done and have them update it. You need the tune updated with the pulley, and everything else...... __________________ BLOWN Bumblebeast! 370 rwhp / 381 ft lbs ~Tuned by JJ at WMS "Like the blind man says......We shall see...."

February 20th, 2009, 04:50 PM	#5
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,467 iTrader: 3 reviews	The mafia should be the only part that needs a tune. If there was sufficient range during the dyno tuning, you may be able to add more boost without retuning, but you need a wideband for sure to know. DO NOT add the mafia without retuning or it will jack everything up! I set up my tunes so that if the customer does add more boost than it was tuned for, it will be on the rich side instead of the lean side. But then there is the danger of a pegged maf if they were already close to the limit. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

February 20th, 2009, 09:11 PM	#6
carlos Regular Join Date: Nov 2007 Posts: 179 iTrader: 1 reviews	good to know, thanks guys __________________

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February 19th, 2009, 05:47 PM	#2
bottlefed02gt Regular Join Date: Feb 2008 Posts: 152 iTrader: 0 reviews	Well a wideband is always recommended, because you never know what kind of effect the weather and other things will have on the tune. I would think your tuner would be able to just tweak the current tune, which shouldn't be too much. I would definitely stay out of boost until you get a wideband and/or retune since you have added quite a bit of stuff since your first tune.

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