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I’ve driven those old cam in block inline 6 engines. While not fast nor powerful they were smooth with good linear power and torque delivery. All were carburetor. Has anyone ever made a multiport fuel injected version of an OHV in-line 6 and if so, what sort of power numbers did it get compared to it’s carburetor version?
The 4.9 I-6 in the F-150. No idea on hp numbers. Friend had a 1991 F-150 with that engine but that was long ago, I think it still drank gas like a V8 though.
the 300 inline six in F150s in the mid 90s were fuel injected, they made something like 150hp at most, decent torque though. and yes it wasnt exactly economical. i think an early head with the late EFI on that engine would have been better overall though.
i think gm brought back an inline six in the late 90s or early 2000s, might have been an inline five though i dont remember though. it was a short lived engine though.
and i know BMW had a couple of inline sixes, though i think they were overhead cam engines.
the 300 inline six in F150s in the mid 90s were fuel injected, they made something like 150hp at most, decent torque though. and yes it wasnt exactly economical. i think an early head with the late EFI on that engine would have been better overall though.
i think gm brought back an inline six in the late 90s or early 2000s, might have been an inline five though i dont remember though. it was a short lived engine though.
and i know BMW had a couple of inline sixes, though i think they were overhead cam engines.
Gm had the inline 5 for the first generation Colorado and Canyon the Ford inline 6 was a cast iron block it could take a beating I had one and loved it was a 5 speed never used 1st gear unless towing something because 1st gear was the creeper gear or granny what ever you called it.
Location: East of Seattle since 1992, 615' Elevation, Zone 8b - originally from SF Bay Area
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I had a 1990 Bronco, and got about 15 mpg with the fuel injected 300 ci I6. Despite only 145 horsepower, it had plenty of torque (265) with the EOD transmission and rear end gearing. I think the fuel injection came in 1989, the EOD transmission in 1990. Great engine, they just kept going.
The 4.0 MPI Chrysler engine used in various Jeep models starting in 1987 produced horsepower in the 180-190 range with torque in the 225-230 range. The 4.0 was never available with a carb, but it's predecessor, the 258 AMC engine, produced 110-115 BHP and 210 ft-lbs or torque with the 2 bbl Carter BBD.
Location: San Ramon, Seattle, Anchorage, Reykjavik
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Quote:
Originally Posted by victimofGM
I’ve driven those old cam in block inline 6 engines. While not fast nor powerful they were smooth with good linear power and torque delivery. All were carburetor. Has anyone ever made a multiport fuel injected version of an OHV in-line 6 and if so, what sort of power numbers did it get compared to it’s carburetor version?
I've owned OHV I-6 in Volvos and Mercedes cars in the past, both carbed and injected. Fantastic engines and I miss them. These V6s today may be smaller and lighter with more power but they are no where near as smooth.
I've owned OHV I-6 in Volvos and Mercedes cars in the past, both carbed and injected. Fantastic engines and I miss them. These V6s today may be smaller and lighter with more power but they are no where near as smooth.
That’s why I was wondering what kind of power they would have today if their engineering had continued? What power would they have with electronically controlled multi port fuel injection? Their engine bay layout would make it easy for turbo power to be added.
Nissan built the L20 for the 1966 Skyline 2000GT. It was a reverse engineered MB engine.
Then in 1970, they enlarged it to 2.4L, called the L24, and put it in the 240Z. It made between 130 and 150hp depending on the carb(s).
For the 280Z, they enlarged it to 2.8L and added FI, called the L28E. It made 135 to 150 hp but was much cleaner (emissions).
These were all SOHC engines though. At the end of the run, Toyota was producing DOHC I6 (5M-GE) in the Supra, making the same power, and BMW was making the M20 engines in the E21 3 series making less power.
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