Longtube tune question - 2003-04 Mach 1 Registry Owners Club

lady_in_red · 09-27-2015, 09:01 PM

I'm about to have longtubes installed on my daily, I've read that you need a dyno tune after doing this. Do I need this directly after install? Or can I wait til my next paycheck ? It's my daily and I'll put miles on it, but I can hold out from getting on it all over town. Haha

lady_in_red · 09-27-2015, 09:06 PM

Also, I bought these headers used from somebody on here. I seem to remember that you need gaskets and bolts for the longtube install. Can anyone confirm this?

01yellerCobra · 09-27-2015, 10:59 PM

There are a couple changes you'll need to make to the tune. The A/F should be checked and the transport delay for the O2's needs to be lengthened. Also the duty cycle will need to be raised. I did about 15% for both with my mid lengths.

Use stock gaskets and bolts if you can. I used the factory studs with my Bassanis. It was a pain tightening them, but they stayed tight.

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ab_mach1 · 09-28-2015, 01:21 AM

I was wondering this too. I would have guessed a good email tune from a reputable tuner would work fine. Has anybody on here gotten an email tune once they got their longtubes?

IG: @azurebluemach

Mustang9668 · 09-28-2015, 01:31 AM

I did an email tune with my old DSG mach. The tune was done by Eric Brooks at Brooks Speed. Car ran great. Went 13.1 with the stock converter. Ran his tune for prob 3 years before I sold that car.

Sent from my Nexus 6 using Tapatalk

311-420 · 09-28-2015, 06:58 AM

Fwiw - I ran a jlt with no screen, intake spacer, ported lower, longtubes and o/r x for a while with the stock tune.

lady_in_red · 09-28-2015, 12:25 PM

Good to know 311, how long did you run it like that? And just out of curiosity, what kind of mpgs did you get untuned like that? I ask because I too have a Jlt cai, no screen, ported upper and lower, ported throttle body, and full exhaust minus the soon to be longtubes and 4.10s and get maybe 18mpg on the highway......

DSG2003Mach1 · 09-28-2015, 01:13 PM

Quote:

Originally Posted by lady_in_red

Good to know 311, how long did you run it like that? And just out of curiosity, what kind of mpgs did you get untuned like that? I ask because I too have a Jlt cai, no screen, ported upper and lower, ported throttle body, and full exhaust minus the soon to be longtubes and 4.10s and get maybe 18mpg on the highway......

wow, 18 is kinda rough, is your car an auto?

lady_in_red · 09-28-2015, 01:45 PM

Yeah. I thought so too. I'm gonna try and clean my iac and re-learn it to see if that helps. Been having a problem with it since I re-installed the stock TB.

lady_in_red · 09-28-2015, 01:45 PM

Stock converter also for the time being

DSG2003Mach1 · 09-28-2015, 02:00 PM

am I making it up or do the auto cars turn higher rpm than the stick cars?

the IAC only matters when your foot is off the gas, it shouldnt be doing anything at highway speeds

lady_in_red · 09-28-2015, 03:25 PM

Yeah. I think they spin higher also. I should of specified, I am experiencing off the pedal problem, this the iac comment. Sorry about that.

311-420 · 09-28-2015, 03:41 PM

Quote:

Originally Posted by lady_in_red

Good to know 311, how long did you run it like that? And just out of curiosity, what kind of mpgs did you get untuned like that? I ask because I too have a Jlt cai, no screen, ported upper and lower, ported throttle body, and full exhaust minus the soon to be longtubes and 4.10s and get maybe 18mpg on the highway......

It ran great for months on the stock tune. I also had tr6 plugs in it. The first tank was terrible mpgs then the computer learned what to do and fuel mpg got much better. About 25 hwy. Mine is also a 5spd with 373s.

lady_in_red · 09-28-2015, 04:52 PM

I wish my computer would learn what to do. I have a computer who might be missing a few screws.... Hahaha

lady_in_red · 09-28-2015, 06:38 PM

Ok. So can/should I reuse my current header gaskets or do I buy new oem ones?

SHAKN' 04 · 09-28-2015, 09:50 PM

How many miles on the car? They should be reusable if they aren't brittle or fall apart when taking off the stock manifolds. If you have to get new ones, get them from ford.

DSG2003Mach1 · 09-28-2015, 10:04 PM

im using the felpro header gaskets, according to the engine builder theyre good gaskets and not too expensive. Personally I don't think it's worth the trouble to risk a leak from reusing the gaskets when you consider what a pain in the *** they are to swap

lady_in_red · 09-29-2015, 12:02 AM

I have 92000 miles on the car, i think I'll just buy some new ones, I was asking in case it was common practice to reuse.

09-27-2015, 09:01 PM	#1
lady_in_red Registered User Join Date: Oct 2013 Location: Orlando, Florida Posts: 41	Longtube tune question I'm about to have longtubes installed on my daily, I've read that you need a dyno tune after doing this. Do I need this directly after install? Or can I wait til my next paycheck ? It's my daily and I'll put miles on it, but I can hold out from getting on it all over town. Haha

09-27-2015, 09:06 PM	#2
lady_in_red Registered User Join Date: Oct 2013 Location: Orlando, Florida Posts: 41	Re: Longtube tune question Also, I bought these headers used from somebody on here. I seem to remember that you need gaskets and bolts for the longtube install. Can anyone confirm this?

09-27-2015, 10:59 PM	#3
01yellerCobra Registered User Join Date: Jan 2013 Location: San Diego, CA Posts: 1,104	There are a couple changes you'll need to make to the tune. The A/F should be checked and the transport delay for the O2's needs to be lengthened. Also the duty cycle will need to be raised. I did about 15% for both with my mid lengths. Use stock gaskets and bolts if you can. I used the factory studs with my Bassanis. It was a pain tightening them, but they stayed tight. Misspelling brought to you by Tapatalk __________________ New Ride: 2004 Mystichrome Cobra-Accufab SBTB and plenum, Steeda 2.8" upper, Bassani X, Borla Stingers, Mcleod RXT, MGW shifter, Level 5 halfshafts, chrome FR500's, Stiffler's FIT system and DS safety loop, GT pumps, BA3000, tuned by owner

09-28-2015, 01:21 AM	#4
ab_mach1 Lorraine's driver Join Date: Apr 2012 Location: Indianapolis, IN Posts: 2,442	I was wondering this too. I would have guessed a good email tune from a reputable tuner would work fine. Has anybody on here gotten an email tune once they got their longtubes? IG: @azurebluemach __________________ Instagram: @azurblumach1 SCT X3 with LaSota Racing tune Borla Stingers w/JBA off road H pipe MGW short shifter w/comfort handle Eibach Sportlines w/Koni STR.T's and Maximum Motorsports CC plates

09-28-2015, 01:31 AM	#5
Mustang9668 saving pennies Join Date: Apr 2008 Location: Griffin, Ga Posts: 1,487	I did an email tune with my old DSG mach. The tune was done by Eric Brooks at Brooks Speed. Car ran great. Went 13.1 with the stock converter. Ran his tune for prob 3 years before I sold that car. Sent from my Nexus 6 using Tapatalk __________________ 03 Mach 1--Auto, 4000 stall, 96 cobra intake cams, 4.10s, ARH L/T's, off road X, Moser 31 spline axles, Eaton Posi diff., MM FLSFC, Tokico D-Specs, k&n filter, 17x9/10.5s AFS Mac wheels 03 Cobra--18x9/10.5 TSW Nurburgring Wheels, Nitto NT05's 275/295, Stiegemeier ported, 2.87” pulley, Canton 9-qt oil pan, Spec Stage II clutch, MM coilovers, Bilstein Shocks/Struts, LFP heat exchanger, LFP radiator, Evans cooling system, 14" Brembo 4 Piston calipers, 470whp, 460ft-lbs

09-28-2015, 06:58 AM	#6
311-420 Can't be bridled Join Date: Sep 2007 Location: Texas Posts: 7,006	Re: Longtube tune question Fwiw - I ran a jlt with no screen, intake spacer, ported lower, longtubes and o/r x for a while with the stock tune. __________________ 2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁

09-28-2015, 12:25 PM	#7
lady_in_red Registered User Join Date: Oct 2013 Location: Orlando, Florida Posts: 41	Re: Longtube tune question Good to know 311, how long did you run it like that? And just out of curiosity, what kind of mpgs did you get untuned like that? I ask because I too have a Jlt cai, no screen, ported upper and lower, ported throttle body, and full exhaust minus the soon to be longtubes and 4.10s and get maybe 18mpg on the highway......

09-28-2015, 01:45 PM	#9
lady_in_red Registered User Join Date: Oct 2013 Location: Orlando, Florida Posts: 41	Re: Longtube tune question Yeah. I thought so too. I'm gonna try and clean my iac and re-learn it to see if that helps. Been having a problem with it since I re-installed the stock TB.

09-28-2015, 01:45 PM	#10
lady_in_red Registered User Join Date: Oct 2013 Location: Orlando, Florida Posts: 41	Re: Longtube tune question Stock converter also for the time being

09-28-2015, 02:00 PM	#11
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: Longtube tune question am I making it up or do the auto cars turn higher rpm than the stick cars? the IAC only matters when your foot is off the gas, it shouldnt be doing anything at highway speeds __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

09-28-2015, 03:25 PM	#12
lady_in_red Registered User Join Date: Oct 2013 Location: Orlando, Florida Posts: 41	Re: Longtube tune question Yeah. I think they spin higher also. I should of specified, I am experiencing off the pedal problem, this the iac comment. Sorry about that.

09-28-2015, 04:52 PM	#14
lady_in_red Registered User Join Date: Oct 2013 Location: Orlando, Florida Posts: 41	Re: Longtube tune question I wish my computer would learn what to do. I have a computer who might be missing a few screws.... Hahaha

09-28-2015, 06:38 PM	#15
lady_in_red Registered User Join Date: Oct 2013 Location: Orlando, Florida Posts: 41	Re: Longtube tune question Ok. So can/should I reuse my current header gaskets or do I buy new oem ones?

09-28-2015, 09:50 PM	#16
SHAKN' 04 Registered User Join Date: Jan 2008 Location: Kyle, Texas Posts: 2,285	Re: Longtube tune question How many miles on the car? They should be reusable if they aren't brittle or fall apart when taking off the stock manifolds. If you have to get new ones, get them from ford. __________________ SOLD04' Mach 1 -Comp Cams 106100's (deg 106/110) -Eatonswap with 3.4 Pulley -Full Exhaust (mac lts & xpipe, sss terminator c/b) -Built Rear w/ 3.55 gears [B]-Tuned by Lethal Performance of San Antonio -510hp/478tq

09-28-2015, 10:04 PM	#17
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: Longtube tune question im using the felpro header gaskets, according to the engine builder theyre good gaskets and not too expensive. Personally I don't think it's worth the trouble to risk a leak from reusing the gaskets when you consider what a pain in the *** they are to swap __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater Last edited by DSG2003Mach1; 09-28-2015 at 10:35 PM.

09-29-2015, 12:02 AM	#18
lady_in_red Registered User Join Date: Oct 2013 Location: Orlando, Florida Posts: 41	Re: Longtube tune question I have 92000 miles on the car, i think I'll just buy some new ones, I was asking in case it was common practice to reuse.

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