New Mods. Do i need a retune? - Ford Mustang Forum
 
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post #1 of 6 (permalink) Old 05-07-2013 Thread Starter
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New Mods. Do i need a retune?

Hey,

I just got some new mods i'm about to put on my foxbody which include:

-70mm throttle body
-80mm MAF (with sensor)
- high flow fuel rails
- 24lb injectors

I have a Bama Performance chip already and i called and asked if they needed to retune from these mods im adding, and the guy told me that all they would do is calibrate the MAF (came with sensor)...

But with larger injectors, wouldnt i need a new tune so it doesn't run rich?

any help would be appreciated.

Thanks

90 GT - GT40P heads P & P, Typhoon upper and lower, 24lb injectors, 70mm throttle body, 80mm MAF, high flow fuel rails,Trick Flow Stage 1 Cam, 3.73 Gears, BBK shorty headers, underdrive pulleys, MSD ignition, 1.6 RR, smog and egr delete, SCT chip, BBK CAI, Short throw shifter...
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post #2 of 6 (permalink) Old 05-07-2013
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You don't need a tune with 24# injectors as long as the MAF is calibrated to the larger injectors.

Matt

2006 GT - Vortech polished w/ intercooler, Eibach suspension, Hurst short-throw, some other goodies - tuned by Paul's High Performance. It moves...

and it collects dust admirably while parked for repairs in the garage...

SOLD - 1995 Black Mustang GT, AODE. Loved it, but I had to let it go...

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post #3 of 6 (permalink) Old 05-07-2013
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What Matt said if the MAF is calibrated for the injectors then it will regulate the fuel in accordance to the injector size. No need for a tune or updated tune. How does the car run without the chip if I may ask?

2014 V6 Deep Impact Blue Mustang, Borla Type S, 2.73 (Uughh need 3.73)
1989 Sonic Blue Mustang LX Coupe, 349 ci,
392 rwhp 424 rwtq....Mustang Dyno
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post #4 of 6 (permalink) Old 05-07-2013 Thread Starter
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it runs ok.. definately not as much power. it has 4 tune settings according to fuel octane. i gotta say 93 and "race" mode is fun!:laughlitt

wish i had the money for better heads and a stroker kit though. that will be my next move.. hopefully..

90 GT - GT40P heads P & P, Typhoon upper and lower, 24lb injectors, 70mm throttle body, 80mm MAF, high flow fuel rails,Trick Flow Stage 1 Cam, 3.73 Gears, BBK shorty headers, underdrive pulleys, MSD ignition, 1.6 RR, smog and egr delete, SCT chip, BBK CAI, Short throw shifter...
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post #5 of 6 (permalink) Old 05-07-2013
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I would send it back in for a re tune just because its free!! I have the same chip...Ive over nighted it to them and back usually get in back within the week.

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Sn95 black- trickflow twisted wedge heads - trickflow track heat upper and lower intake - comp cam 1.6 roller rockers - b cam - 75 mm throttle body - 75 mm mas - 24lb injectors - 255lph bbk fuel pump - sct4 banks chip.
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post #6 of 6 (permalink) Old 05-08-2013
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Quote:
Originally Posted by 90foxbody5.0 View Post
Hey,

I just got some new mods i'm about to put on my foxbody which include:

-70mm throttle body
-80mm MAF (with sensor)
- high flow fuel rails
- 24lb injectors

I have a Bama Performance chip already and i called and asked if they needed to retune from these mods im adding, and the guy told me that all they would do is calibrate the MAF (came with sensor)...

But with larger injectors, wouldnt i need a new tune so it doesn't run rich?

any help would be appreciated.

Thanks
As mentioned above, the Bama Team will recalibrate your MAF sensor for the larger 80mm diameter and the 24lb injectors. You should definitely send the chip back to the Bama Team for the new calibrations. Without them, your Mustang won't run nearly as smoothly!

Shane

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