Do I need a tune?? - 2003-04 Mach 1 Registry Owners Club

Live Life Fresh · 05-25-2010, 10:26 PM

Hey guys, looking for some experienced advice. Have a couple bolt-ons on my M5 Mach, wondering if a tune will do me a lot of good or should I just roll as is. Minus the correction of the speedometer reading and the deletion of the rear 02 sensor readings, any noticeable benefits; will a good tune really wake up my car with these mods???

MODS:
JLT RAI
SLP Off-Road X-Pipe
SLP Loudmouth I Cat-Back
4.10 Gears
(Might drop an intake spacer on in a week or two)

Cooldbz12 · 05-25-2010, 10:54 PM

Your probly running too lean, you can get like 10-15 hp on top of that with a dyno tune.

Live Life Fresh · 05-26-2010, 02:34 AM

That's my fear, that I'm running a bit lean. Guess imma head to the local tuners when I free up some cash; any serious trouble/damage from a weird A/F ratio??

ASH302 · 05-26-2010, 05:51 AM

if you have the money to do it, it couldn't hurt to get it dyno n tuned.

ASH302 · 05-26-2010, 05:52 AM

BTW i think your mach looks sick, realy good combination with it and the rims and everything, even looks good with out the strip on the hood

04dsgMACHONE · 05-26-2010, 11:18 AM

What would be causing him to run too lean? I have almost the same mods minus the catback and instead welded flows and the PHP intake spacer. Would he need it dyno tuned or just a canned tuned from say AM work? Don't mean to hijack just thought this is kinda the same page I'm on. Also what could happen if it runs too lean for too long?

Mustang9668 · 05-26-2010, 11:39 AM

Quote:

Originally Posted by 04dsgMACHONE

What would be causing him to run too lean? I have almost the same mods minus the catback and instead welded flows and the PHP intake spacer. Would he need it dyno tuned or just a canned tuned from say AM work? Don't mean to hijack just thought this is kinda the same page I'm on. Also what could happen if it runs too lean for too long?

Correct me if I'm wrong but I believe it's the combination of the JLT and o/r midpipe.

04dsgMACHONE · 05-26-2010, 12:18 PM

Quote:

Originally Posted by Mustang9668

Correct me if I'm wrong but I believe it's the combination of the JLT and o/r midpipe.

Oh so since mines catted I should be good? Once again sorry for the hijack.

311-420 · 05-26-2010, 12:49 PM

There's no way to know until you put it on the dyno and take a/f readings.

Mine with a predator, offroad x, catback, Jlt ram air and spacer was actually running rich. So you never know.

Atleast spend the 30-40$ and get some readigs and then go from there if you need it tuned. There's my worthless .02

ponygt65 · 05-26-2010, 07:49 PM

Quote:

Originally Posted by 311-420

There's no way to know until you put it on the dyno and take a/f readings.

Mine with a predator, offroad x, catback, Jlt ram air and spacer was actually running rich. So you never know.

Atleast spend the 30-40$ and get some readigs and then go from there if you need it tuned. There's my worthless .02

Agreed.

on a side note, a tune will help 90% of the time. It's up the the individual to decide if the $$ is worth it.

Personally...I'd pay the $$ to get the A/F checked, then go back for a tune later if you don't have the $$ for that. At least at that point you'll know where you're at without guessing.

Live Life Fresh · 05-28-2010, 12:37 PM

Definitely what I'm planning on doing; get an A/F ratio reading and go from there. Thanks for all the advice dudes

05-25-2010, 10:26 PM	#1
Live Life Fresh Registered User Join Date: Jul 2009 Location: Los Angeles, CALI Posts: 156	Do I need a tune?? Hey guys, looking for some experienced advice. Have a couple bolt-ons on my M5 Mach, wondering if a tune will do me a lot of good or should I just roll as is. Minus the correction of the speedometer reading and the deletion of the rear 02 sensor readings, any noticeable benefits; will a good tune really wake up my car with these mods??? MODS: JLT RAI SLP Off-Road X-Pipe SLP Loudmouth I Cat-Back 4.10 Gears (Might drop an intake spacer on in a week or two) __________________ 2003 TR M5 Mach 1: Termi Seats, Bumpers and IRS JLT RAI. 4.10 Gears. Off-Road ProChamber. SLP LMI. *Bass & Tint* 18x9/18x10 Silver FR500 Wheels, 295/265 Pirelli. **Saleen Wing. Sequential & Tinted Tail-Lights/ 01 Cobra Tails**

05-25-2010, 10:54 PM	#2
Cooldbz12 Registered User Join Date: May 2007 Location: FS, TX Posts: 796	Re: Do I need a tune?? Your probly running too lean, you can get like 10-15 hp on top of that with a dyno tune. __________________ 2003 Mustang Mach 1 (Bought 11/16/2005) Eaton Swapped @7psi (On 10/24/15) 13.2@107 (Bone Stock Run) 2000 3.8 Mustang Sold But Will Never Be Forgotten

05-26-2010, 02:34 AM	#3
Live Life Fresh Registered User Join Date: Jul 2009 Location: Los Angeles, CALI Posts: 156	Re: Do I need a tune?? That's my fear, that I'm running a bit lean. Guess imma head to the local tuners when I free up some cash; any serious trouble/damage from a weird A/F ratio?? __________________ 2003 TR M5 Mach 1: Termi Seats, Bumpers and IRS JLT RAI. 4.10 Gears. Off-Road ProChamber. SLP LMI. *Bass & Tint* 18x9/18x10 Silver FR500 Wheels, 295/265 Pirelli. **Saleen Wing. Sequential & Tinted Tail-Lights/ 01 Cobra Tails**

05-26-2010, 05:51 AM	#4
ASH302 Soldier for Christ Join Date: May 2009 Location: Willis, TX at The Daddy ASh Ranch Posts: 30,596	Re: Do I need a tune?? if you have the money to do it, it couldn't hurt to get it dyno n tuned. __________________ 2001 lazer red v6 Mustang coupe sold in Aug 2006 2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012 2013 grey 6 speed coupe GT Mustang Sold in Feb 2014 2013 RED Dodge Charger R/T Sold Nov 2014 2002 custom Blue 02 Auto Trans AM Sold June 2015 1998 Cobra Black Sold summer 2016 Current 2009 Ford F350 FX4 March 2017 (work truck) 2003 OW 5.0 Mach 1 Aug 2020 ASh

05-26-2010, 05:52 AM	#5
ASH302 Soldier for Christ Join Date: May 2009 Location: Willis, TX at The Daddy ASh Ranch Posts: 30,596	Re: Do I need a tune?? BTW i think your mach looks sick, realy good combination with it and the rims and everything, even looks good with out the strip on the hood __________________ 2001 lazer red v6 Mustang coupe sold in Aug 2006 2004 screaming yellow 5.0 sc Mach 1 sold in Oct 2012 2013 grey 6 speed coupe GT Mustang Sold in Feb 2014 2013 RED Dodge Charger R/T Sold Nov 2014 2002 custom Blue 02 Auto Trans AM Sold June 2015 1998 Cobra Black Sold summer 2016 Current 2009 Ford F350 FX4 March 2017 (work truck) 2003 OW 5.0 Mach 1 Aug 2020 ASh

05-26-2010, 11:18 AM	#6
04dsgMACHONE Registered User Join Date: Apr 2010 Location: Winston-Salem, NC Posts: 494	Re: Do I need a tune?? What would be causing him to run too lean? I have almost the same mods minus the catback and instead welded flows and the PHP intake spacer. Would he need it dyno tuned or just a canned tuned from say AM work? Don't mean to hijack just thought this is kinda the same page I'm on. Also what could happen if it runs too lean for too long?

05-26-2010, 12:49 PM	#9
311-420 Can't be bridled Join Date: Sep 2007 Location: Texas Posts: 7,006	Re: Do I need a tune?? There's no way to know until you put it on the dyno and take a/f readings. Mine with a predator, offroad x, catback, Jlt ram air and spacer was actually running rich. So you never know. Atleast spend the 30-40$ and get some readigs and then go from there if you need it tuned. There's my worthless .02 __________________ 2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁

05-28-2010, 12:37 PM	#11
Live Life Fresh Registered User Join Date: Jul 2009 Location: Los Angeles, CALI Posts: 156	Re: Do I need a tune?? Definitely what I'm planning on doing; get an A/F ratio reading and go from there. Thanks for all the advice dudes __________________ 2003 TR M5 Mach 1: Termi Seats, Bumpers and IRS JLT RAI. 4.10 Gears. Off-Road ProChamber. SLP LMI. *Bass & Tint* 18x9/18x10 Silver FR500 Wheels, 295/265 Pirelli. **Saleen Wing. Sequential & Tinted Tail-Lights/ 01 Cobra Tails**

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