Upgrading injectors and retuning

mp4 player · February 19th, 2010, 04:56 PM

So I'm trying to get a few things out of the way now to make life easier once I finally get to installing my 10-11psi procharger. I got my new fuel pump in yesterday and now I'm thinking about swapping out injectors.

I know that when you swap injectors it needs to be retuned so my question is this: Will just changing the "Injector Size" on my SCT X3(using their canned tune) work for me?

If so then I'm also wondering if I want to set it for 39lb or 42lb injectors. I bought as set of 03/04 cobra 39lb injectors but then have been reading that they actually flow more around 42-43lbs.

ESG-642T · February 19th, 2010, 05:20 PM

Just wait until you install a procharger.

mp4 player · February 19th, 2010, 05:25 PM

Why do you say wait?

Justdoit04 · February 19th, 2010, 05:59 PM

I know a guy up in randallstown, MD selling some 42lbs injectors he had on his 01 GT that he had turbocharged. He blew a gasket in his engine so he parted some stuff out. If you need 42lbs injectors I can get in touch with him for you. I think he's parting with them for only $75.

mp4 player · February 19th, 2010, 06:13 PM

I think I'm good on injectors, as it sits right now I have a set of 8 30lbs, 8 39lbs, 6 stock injectors plus two sets of wiring adapters.

ESG-642T · February 19th, 2010, 07:45 PM

no point of putting them in now.

mp4 player · February 19th, 2010, 08:38 PM

The point of putting them in now is that I have the time and I may not later. I'm trying to avoid having to try to do exhaust, injectors, fuel pump, intercooler, and supercharger all at once.

slvr2000stang · February 19th, 2010, 08:45 PM

Just changing the injector size in the tune will not be sufficient.

mp4 player · February 19th, 2010, 10:54 PM

Good to know. That does make me wonder though, why do they have the option to change the injector size if it doesn't work correctly?

ESG-642T · February 20th, 2010, 12:31 AM

Originally Posted by mp4 player

The point of putting them in now is that I have the time and I may not later. I'm trying to avoid having to try to do exhaust, injectors, fuel pump, intercooler, and supercharger all at once.

You say that like injectors are hard to put in?

mp4 player · February 20th, 2010, 03:19 AM

None if it's that hard, it's all just time consuming and shit happens, especially with used parts. I can already see scheduling this install around the one local dyno shop, nice weather and time off from college/work is going to be hard.

I'd like to have as much as possible installed and tested before I make a tuning appointment weeks in advance and end up having to miss it.

I'm not asking whether or not you think I should install them first but rather if it's possible. I'd appreciate it if you would contribute actual knowledge instead of opinion as it really doesn't help.

ESG-642T · February 20th, 2010, 04:41 AM

If you want to pay to have somebody tune 42 lb injectors in a stock car then go right ahead. I don't know why you're asking if its possible if they a.) fit in the holes and b.) connect to the electrical connections then they will "work" right?

97fordsixer · February 20th, 2010, 11:04 AM

he is asking since the tuner has the preset adjustments for those injectors if he can put them in and hit a button. Right? i personally dont know but someone with the knowledge will chime in. Forget he is going to be tuning later and just look at the question asked.

Codeman · February 20th, 2010, 12:42 PM

I do not know, but I would think that you could just use the thing on the tuner. I would try googling it or waiting for someone on here. It does not make sense that they would not work if you tuned it like that, like you said, why else would they put that on the tuner?

ESG-642T · February 20th, 2010, 01:01 PM

The adjustments on the tuner are very rough... And the car will run pretty bad. Joe@tricktuners can can cook up a tune for it though.

February 19th, 2010, 04:56 PM	#1
mp4 player Hardcore Enthusiast '00 V6 Procharged Mustang Join Date: Feb 2008 Location: WA Posts: 1,345 iTrader: 1 reviews	Upgrading injectors and retuning So I'm trying to get a few things out of the way now to make life easier once I finally get to installing my 10-11psi procharger. I got my new fuel pump in yesterday and now I'm thinking about swapping out injectors. I know that when you swap injectors it needs to be retuned so my question is this: Will just changing the "Injector Size" on my SCT X3(using their canned tune) work for me? If so then I'm also wondering if I want to set it for 39lb or 42lb injectors. I bought as set of 03/04 cobra 39lb injectors but then have been reading that they actually flow more around 42-43lbs.

February 19th, 2010, 05:20 PM	#2
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,319 iTrader: 0 reviews	Just wait until you install a procharger. __________________ Hi, You can call me Kyle Random ESG fact: Had a prochamber on his v6 before it was popular. WTB: v6 BBK valve covers

February 19th, 2010, 05:59 PM	#4
Justdoit04 Regular 2003 Mustang GT Track Virgin Join Date: Apr 2009 Location: Manassas,VA Posts: 371 iTrader: 3 reviews	I know a guy up in randallstown, MD selling some 42lbs injectors he had on his 01 GT that he had turbocharged. He blew a gasket in his engine so he parted some stuff out. If you need 42lbs injectors I can get in touch with him for you. I think he's parting with them for only $75. __________________ White Mustang Crew Founder "White Power!" as said by Dave Chappelle Safi is a liar ... Mods: Interior Matching Custom Corbeau CR1 Racing seats

February 19th, 2010, 07:45 PM	#6
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,319 iTrader: 0 reviews	no point of putting them in now. __________________ Hi, You can call me Kyle Random ESG fact: Had a prochamber on his v6 before it was popular. WTB: v6 BBK valve covers

February 19th, 2010, 08:45 PM	#8
slvr2000stang Regular 2000 Mustang 14.10@96.75 Join Date: Apr 2007 Location: Chicago Posts: 54 iTrader: 0 reviews	Just changing the injector size in the tune will not be sufficient. __________________ 2000 V6 vert 2003 Lightning

February 19th, 2010, 05:25 PM	#3
mp4 player Hardcore Enthusiast '00 V6 Procharged Mustang Join Date: Feb 2008 Location: WA Posts: 1,345 iTrader: 1 reviews	Why do you say wait?

February 19th, 2010, 06:13 PM	#5
mp4 player Hardcore Enthusiast '00 V6 Procharged Mustang Join Date: Feb 2008 Location: WA Posts: 1,345 iTrader: 1 reviews	I think I'm good on injectors, as it sits right now I have a set of 8 30lbs, 8 39lbs, 6 stock injectors plus two sets of wiring adapters.

February 19th, 2010, 08:38 PM	#7
mp4 player Hardcore Enthusiast '00 V6 Procharged Mustang Join Date: Feb 2008 Location: WA Posts: 1,345 iTrader: 1 reviews	The point of putting them in now is that I have the time and I may not later. I'm trying to avoid having to try to do exhaust, injectors, fuel pump, intercooler, and supercharger all at once.

February 19th, 2010, 10:54 PM	#9
mp4 player Hardcore Enthusiast '00 V6 Procharged Mustang Join Date: Feb 2008 Location: WA Posts: 1,345 iTrader: 1 reviews	Good to know. That does make me wonder though, why do they have the option to change the injector size if it doesn't work correctly?

February 20th, 2010, 03:19 AM	#11
mp4 player Hardcore Enthusiast '00 V6 Procharged Mustang Join Date: Feb 2008 Location: WA Posts: 1,345 iTrader: 1 reviews	None if it's that hard, it's all just time consuming and shit happens, especially with used parts. I can already see scheduling this install around the one local dyno shop, nice weather and time off from college/work is going to be hard. I'd like to have as much as possible installed and tested before I make a tuning appointment weeks in advance and end up having to miss it. I'm not asking whether or not you think I should install them first but rather if it's possible. I'd appreciate it if you would contribute actual knowledge instead of opinion as it really doesn't help. Last edited by mp4 player; February 20th, 2010 at 03:22 AM.

February 20th, 2010, 04:41 AM	#12
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,319 iTrader: 0 reviews	If you want to pay to have somebody tune 42 lb injectors in a stock car then go right ahead. I don't know why you're asking if its possible if they a.) fit in the holes and b.) connect to the electrical connections then they will "work" right? __________________ Hi, You can call me Kyle Random ESG fact: Had a prochamber on his v6 before it was popular. WTB: v6 BBK valve covers

February 20th, 2010, 11:04 AM	#13
97fordsixer Regular 97 single port w/bolt ons n/a Join Date: Sep 2007 Location: iowa Posts: 218 iTrader: 0 reviews	he is asking since the tuner has the preset adjustments for those injectors if he can put them in and hit a button. Right? i personally dont know but someone with the knowledge will chime in. Forget he is going to be tuning later and just look at the question asked. __________________ bolt ons for now..... split port swap very soon....

February 20th, 2010, 12:42 PM	#14
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	I do not know, but I would think that you could just use the thing on the tuner. I would try googling it or waiting for someone on here. It does not make sense that they would not work if you tuned it like that, like you said, why else would they put that on the tuner? __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

February 20th, 2010, 01:01 PM	#15
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,319 iTrader: 0 reviews	The adjustments on the tuner are very rough... And the car will run pretty bad. Joe@tricktuners can can cook up a tune for it though. __________________ Hi, You can call me Kyle Random ESG fact: Had a prochamber on his v6 before it was popular. WTB: v6 BBK valve covers

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