OK, I'm bored, and I want to try something something kinda on a related topic.
I have a '92 Olds Trofeo for my summer daily. It's an L27 with the aluminum upper, same as the one in my truck. It's only getting like 25mpg on the freeway, closer to 19 on my daily drive (my Camaro pre-top swap was getting 34 on the freeway and 26 daily). The Trofeo has an very early version of the class 2 data bus that runs everything - the trip computer, the HVAC, the gauge cluster, etc... Everything. So deleting the PCM for a series 2 or OBD 2 is not currently an option as it cripples the car.
I've got a T3 from a Saab sitting here. I want to run it at like 0.5lbs of boost. I can hack off the thingy for the internal wastegate and use a small spring on a threaded rod to adjust the opening point of the internal wastegate? The idea is that it's primary function is for fuel economy - power increase is inevitable I'm sure, but keeping the boosty out of boost means you won't be tempted to go boosting around. Tuning is going to be impossible, can't swap to the newer 3800 pcm because deleting the existing PCM makes everything in the car not work. It doesn't use a MAP sensor that I'm aware of, it only has a MAS. So it's not like the computer is going to be aware of boost pressure to begin with. If that's the case, aside from timing, the only thing limiting how much boost it can take is the upper limit of the MAS? I would most likely run it hot, no intercooler.
Or has anybody ever piggybacked PCMs, and is it just splicing all the sensor wires to both PCMs at the same time, or is it more involved?
Hang on just a second... I just found out that the 92 Trofeo has the same PCM as the 93 SSEi (Rockauto part numbers FTMFW). Fuck yeah, nevermind all that shit. This means I can take the PROM from my series 1 L67 and pop it in and L67 swap this bitch, right? The 93 PCM should just drop right in and use the same data bus and form, right? One would think that has to be the case, if the rockauto part numbers are correctly listed.
I have a '92 Olds Trofeo for my summer daily. It's an L27 with the aluminum upper, same as the one in my truck. It's only getting like 25mpg on the freeway, closer to 19 on my daily drive (my Camaro pre-top swap was getting 34 on the freeway and 26 daily). The Trofeo has an very early version of the class 2 data bus that runs everything - the trip computer, the HVAC, the gauge cluster, etc... Everything. So deleting the PCM for a series 2 or OBD 2 is not currently an option as it cripples the car.
I've got a T3 from a Saab sitting here. I want to run it at like 0.5lbs of boost. I can hack off the thingy for the internal wastegate and use a small spring on a threaded rod to adjust the opening point of the internal wastegate? The idea is that it's primary function is for fuel economy - power increase is inevitable I'm sure, but keeping the boosty out of boost means you won't be tempted to go boosting around. Tuning is going to be impossible, can't swap to the newer 3800 pcm because deleting the existing PCM makes everything in the car not work. It doesn't use a MAP sensor that I'm aware of, it only has a MAS. So it's not like the computer is going to be aware of boost pressure to begin with. If that's the case, aside from timing, the only thing limiting how much boost it can take is the upper limit of the MAS? I would most likely run it hot, no intercooler.
Or has anybody ever piggybacked PCMs, and is it just splicing all the sensor wires to both PCMs at the same time, or is it more involved?
Hang on just a second... I just found out that the 92 Trofeo has the same PCM as the 93 SSEi (Rockauto part numbers FTMFW). Fuck yeah, nevermind all that shit. This means I can take the PROM from my series 1 L67 and pop it in and L67 swap this bitch, right? The 93 PCM should just drop right in and use the same data bus and form, right? One would think that has to be the case, if the rockauto part numbers are correctly listed.
