Direct Injection Delete
Le Mans Master
Joined: Mar 2010
Posts: 7,049
Likes: 944
From: DFW TX
I remember Matt at Florida Speed (no longer in business) doing this in like 2016 ish on a customers car. I think it was motorhead here on the forum actually.
Not sure how the car ended up running, but I bet it freaked out the factory ECU.
Either way you have to do a aftermarket ECU, so you might as well just add port on top of DI.
Not sure how the car ended up running, but I bet it freaked out the factory ECU.
Either way you have to do a aftermarket ECU, so you might as well just add port on top of DI.
Melting Slicks
Joined: Oct 2009
Posts: 2,560
Likes: 485
From: Moberly, Mo
Why? Direct injection is a much better fuel delivery system then the LS port injection ever was or will be. Now if you want to add port injection under the blower that's different if you are planning on making a 900 to a 1000 rwhp . It would be a fu-king nightmare to even try it, but I guess if you wanna go slower that's the way to do it.
Last edited by 99vetteran; Jun 29, 2021 at 11:47 PM.
Drifting
Joined: Jul 2015
Posts: 1,674
Likes: 342
From: NY
I remember reading on a build that attempted to delete the DI. They ran into major issues tuning with the stock ecu. Keep it and just add port or build up the DI to support more fuel. Options are available finally. Big high flow injectors, HPFP, lowside and belt driven highside etc...
Le Mans Master
Joined: Aug 2001
Posts: 6,071
Likes: 296
From: Savannah GA
Cruise-In IV Veteran
I remember reading on a build that attempted to delete the DI. They ran into major issues tuning with the stock ecu. Keep it and just add port or build up the DI to support more fuel. Options are available finally. Big high flow injectors, HPFP, lowside and belt driven highside etc...
Drifting
Joined: Jul 2015
Posts: 1,674
Likes: 342
From: NY
Beyond the piggyback fuel controllers for port, shops are starting to unlock the potential of motec with these setups. Which gives car greater tuning/control of the car. Let alone fuel control, but boost per gear, true traction control. That's why these 2K+ HP Vipers/lambos get busy with far less traction issues
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Supporting Vendor
Joined: Feb 2009
Posts: 4,417
Likes: 1,424
From: Mesa Az
We are deleting it on a very high hp C7 build here because DI injectors fail at a high rate and pumps can leak. Would rather focus on one solid setup at 2k hp then dual injection and have potential more issues.
