More on the Rolls Royce build and Hellcrate motor swap

[Magnified]

They drop the motor in and start it using a Chevy ECU. I know if you take a salvage motor you need all the accessories, even the gas tank, for the antitheft system to allow the motor to run. Does that not apply to the crate motors?

For those who did not see the other thread, the ECU is the one that came with the 1000 HP on pump gas NA Chevy crate big block that went to SEMA (the first one released).

 

[1971demon]

They drop the motor in and start it using a Chevy ECU. I know if you take a salvage motor you need all the accessories, even the gas tank, for the antitheft system to allow the motor to run. Does that not apply to the crate motors?

For those who did not see the other thread, the ECU is the one that came with the 1000 HP on pump gas NA Chevy crate big block that went to SEMA (the first one released).

Cool to say the least...more bugs to work out than on Hunters porch on an August night...

 

[Magnified]

I still dont see how the motor will run w the Chevy eco unless the hellcrate motor does not require the hellcat motor's full security suite to run.

 

[1971demon]

I still dont see how the motor will run w the Chevy eco unless the hellcrate motor does not require the hellcat motor's full security suite to run.

One way or another..my guess it gets sorted out

 

[Hpindy]

I think GM ecu's are easier to tune . I heard all you need was a degree from any clown college to tune one .

Sent from my BBF100-2 using Tapatalk

 

[Jack_Toepfer]

It’s crank, cam, ECT, and IAT sensors… fire 8 injectors and 16 spark plugs and you have yourself a petrol fired 717hp air pump!
Granted, I don’t know if the Chevy guys run as many sensors in their blowers as FCA, or if they use a throttle body for a bypass valve… but who knows these days.

 

[Magnified]

in theory, if you remove all of the hellcrate computers, all you have left in a V8 with sensors. So anything that can read those sensors and drive the fuel injectors etc, can control that setup.

But there has to be more to it than that, I believe. If not, why wouldn't the wrecked HC motors be sold with a generic ECU and toss the oem center stack, gas tank, etc... that are all required for the OEM ECU to start the car and function properly?

 

[Confuzed1]

I'd think that someone that knows their stuff about tuning could use about any ECM to control a HC engine. But - the spark advance and retard under boost would need to be spot on.....fueling too. Totally different from any N/A LS GM engine I'm sure.

- Kinda neat they were able to use GM controls on a HC engine to do that.....but why put that engine in a Rolls is beyond me, but to each their own I suppose!