2023 Cadillac V with the LT4 Engine and LT5 blower - OEM Fuel system upgraded??

[TriPinTaZ]

Not sure if anyone saw the press release on the new Cadillac Escalade V, but it has an LT4 engine with an LT5 blower and ONLY DI injectors. No port injection. Makes 682HP on 10psi.

Does this mean that potentially, there is an upgraded GM High Pressure Fuel Pump and larger Injectors that went into this platform and we will be able to swap these parts over to the CTS-v, Camaro and Corvette LT4 platform if this is indeed true?

If anyone on here has a way to find out early, or ever gets their hands on one of these vehicles. Please share the info on the HPFP and Injectors that GM used in this platform.

[tunerpro]

...but it has an LT4 engine with an LT5 blower and ONLY DI injectors...



Now THAT is interesting, I hadn't heard it was the LT5 blower. At that power level, though, it seems unlikely that they would have needed to upgrade the injectors and HPFP. Once the parts catalogues are out for the 2023 models, a call to a friendly parts department at the dealership should be able to get some clarification via part numbers.

[Ben Charles]

Lt4 injectors and HPFP is fine… (be nice if there is factory upgrades)

Only reason PI on zr1 from what I’ve seen is for Cat over temp

[TriPinTaZ]

I know its a long shot, but I'm hopeful. I'll hold on to this hope until it is confirmed one way or another lol.

[Joshinator99]

Seems crazy to think GM would design/engineer/validate/build a whole new DI pump or injectors for a measly 32 extra HP, no? The LPE BB HPFP can outperform that level by a good amount anyway. Just my 2 cents.

[TriPinTaZ]

While I agree it is a long shot....you never know!

[DSteck]

The ZR1's LT5 used port injection solely to keep up with COT. When COT is not triggered, the port injectors don't even activate.