Bigger injectors
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Cross-Country
Joined: Feb 2017
Posts: 99
Likes: 2
From: New Jersey/Delaware
Bigger injectors
I have a 96 f150 with a 4.9. I recently had the head ported and polished, I am also running a high flow cat with a bigger exhaust. My question is, should I also be upgrading to bigger injectors with these mods or will the stock ones be sufficient?
Lead Driver
Joined: May 2011
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You are likely fine, the computer will make adjustments within its capabilities. Make sure your o2 sensor is fresh or functioning properly.
A wideband is the only concrete way to tell what is happening. If it is running lean, time to tune.
A wideband is the only concrete way to tell what is happening. If it is running lean, time to tune.
Junior User
Joined: Dec 2018
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You may throw a check engine light for the increased airflow. There are thresh holds for the mass air flow sensor and thresh holds for fuel table corrections. Tuning can on these trucks is not hard with sct but can be expensive to set up.
Former Vendor
Joined: Apr 2019
Posts: 279
Likes: 3
From: Shawnee KS
Nobody can say for sure if the stock injectors/ECU will be able to handle it or not. You'll just have to try it out. As stated, having a wideband o2 setup is the only way to know for sure if it's going lean or not. We sell these for $125 on our site or $175 with the optional gauge, and have tuning options for your application whether it's got a manual trans or an automatic.
Junior User
Joined: Dec 2018
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Innovate mtx-L is a good wideband. It uses the lsu 4.9 sensor. I have this and 2 other wideband from autometer. I like the autometer because the gauge looks nicer but the innovate is easier to wire and the autometer use lsu 4.2 sensors which are inferiir and less plentiful. New ford vehicles use the lsu 4.9 that will plug into the innovate
Former Vendor
Joined: Apr 2019
Posts: 279
Likes: 3
From: Shawnee KS
Our widebands use the LSU 4.9 sensor as well and we'll soon be offering one that uses the new ADV sensor that nobody else is even using yet.
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Cross-Country
Joined: Feb 2017
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From: New Jersey/Delaware
So when you say tune it what do you mean? Do you mean get something like a SCT tuner? Or would I have to bring it to a shop to have it tuned?
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Former Vendor
Joined: Apr 2019
Posts: 279
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From: Shawnee KS
All tuning options require hardware of some sort (SCT stuff to piggyback onto the stock ECU or replacing the ECU with modern electronics like we offer). Both options can be tuned by you or by a shop. SCT is more tailored towards SCT dealers doing the tuning but it can be done either way if you buy the pro package software and such. Ours is designed to be tuned by you (even if you've got no tuning experience). Street tuning is fine in most cases.
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Cross-Country
Joined: Feb 2017
Posts: 99
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From: New Jersey/Delaware
Not sure if this is a general question to everyone in the thread or to me?
All tuning options require hardware of some sort (SCT stuff to piggyback onto the stock ECU or replacing the ECU with modern electronics like we offer). Both options can be tuned by you or by a shop. SCT is more tailored towards SCT dealers doing the tuning but it can be done either way if you buy the pro package software and such. Ours is designed to be tuned by you (even if you've got no tuning experience). Street tuning is fine in most cases.
All tuning options require hardware of some sort (SCT stuff to piggyback onto the stock ECU or replacing the ECU with modern electronics like we offer). Both options can be tuned by you or by a shop. SCT is more tailored towards SCT dealers doing the tuning but it can be done either way if you buy the pro package software and such. Ours is designed to be tuned by you (even if you've got no tuning experience). Street tuning is fine in most cases.
Former Vendor
Joined: Apr 2019
Posts: 279
Likes: 3
From: Shawnee KS
Depends in if you've got a manual or auto trans, and if 4.9's were sequentially fired or batch fired in 96, and if the 4.9's were OBD2 or EEC-IV in 96. If I were to guess, it's probably OBD2 but you'd need to confirm.
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Cross-Country
Joined: Feb 2017
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From: New Jersey/Delaware
It's an E4OD auto trans and it is OBD2, and I don't know about your other question.
Former Vendor
Joined: Apr 2019
Posts: 279
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From: Shawnee KS
If it's OBD2 then the only tuning options we offer for it are SCT products. We don't list these products on our site but we can beat anyone else's prices for those products. You'd just have to look at the options on SCT's site and let us know what product(s) you're interested in.
Mountain Pass
Joined: Aug 2018
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I used a tweecer in my 96. Works good for tuning. I'm running 19lb injectors and deleted all emissions and second 02 sensor with it. I bought for future turbo, so I haven't played too much with fuel tables. But it does allow complete programming of fuel, spark, and load tables
Junior User
Joined: Dec 2018
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96 is sequentially fired and if you need to retain emissions, i believe the only option is sct. I have the pro racer advantage software for my 96 turbo 4.9L. Will tell you it can be frustrating at times. Also the price is expensive. The software is around 550 i believe with one unlocked key but you still need a handheld programmer which an x3 is near 200-250. My honest opinion is if you do not need emissions stay away from sct and look into the microsquirt/megasquirt hardware. Tunerstudio is more user friendly and cheaper. Everytime you make a change with sct, you have to download to the ecu and it takes so long to dial in a daily driver.