Who’s running the Weapon X SPI port injection kit

Vulcan1 · 03-16-2019, 08:41 AM

Looking for feedback on the Weapon X SPI port injection kit, not looking for the how it works. Looking for user experience, feedback.

gonabite · 03-21-2019, 07:01 AM

I run this on my car making well over 900 WHP on E85. Once it was tuned it’s a set it and forgot system. I have had no issues with it. It does what it’s intended to.

Vulcan1 · 03-21-2019, 07:19 AM

my car is tuned to the setup I have now, will the SPI controller be the only tune required or will the OEM ECU need retuned as well? If I’m adding the SPI kit so I have the fueling capacity to run E85 I would hope that only the SPI kit would need to be tuned to adjust for the added fuel requirements?

gonabite · 03-21-2019, 06:41 PM

Quote:

Originally Posted by Vulcan1

my car is tuned to the setup I have now, will the SPI controller be the only tune required or will the OEM ECU need retuned as well? If I’m adding the SPI kit so I have the fueling capacity to run E85 I would hope that only the SPI kit would need to be tuned to adjust for the added fuel requirements?

You may want to have some of the fuel taken out of the stock injectors so they aren't working as hard, and likewise making the SPi system work enough. That would be all that you may want to touch with the current tune is just fueling of the stock system. That would be up to the tuner of course and what looks good and makes sense.

Rahbek · 03-08-2022, 10:14 AM

Hi Gonabite
You say you making 900whp on your cts-v3
What is your mods? And what tq do you make?😀

03-16-2019, 08:41 AM	#1
Vulcan1 Drives: 2018 Hyper Metallic Blue ZL-1 M6 Join Date: Aug 2017 Location: Lexington KY Posts: 75	Who’s running the Weapon X SPI port injection kit Looking for feedback on the Weapon X SPI port injection kit, not looking for the how it works. Looking for user experience, feedback. __________________ 2018 ZL-1 Hyper-blue, Heads, Cam, Exhaust, Pulley, CAI, ported TB. 720HP/715TQ.

03-21-2019, 07:19 AM	#3
Vulcan1 Drives: 2018 Hyper Metallic Blue ZL-1 M6 Join Date: Aug 2017 Location: Lexington KY Posts: 75	my car is tuned to the setup I have now, will the SPI controller be the only tune required or will the OEM ECU need retuned as well? If I’m adding the SPI kit so I have the fueling capacity to run E85 I would hope that only the SPI kit would need to be tuned to adjust for the added fuel requirements? __________________ 2018 ZL-1 Hyper-blue, Heads, Cam, Exhaust, Pulley, CAI, ported TB. 720HP/715TQ.

03-21-2019, 07:01 AM	#2
gonabite Drives: 2016 CTS V Join Date: Feb 2012 Location: The Drag Strip Posts: 76	I run this on my car making well over 900 WHP on E85. Once it was tuned it’s a set it and forgot system. I have had no issues with it. It does what it’s intended to.

03-08-2022, 10:14 AM	#5
Rahbek Drives: Cadillac cts-v3 Join Date: Mar 2022 Location: The drag strip Posts: 2	Hi Gonabite You say you making 900whp on your cts-v3 What is your mods? And what tq do you make?😀

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