Originally posted by bigshow
reply to post by autowrench
Oh please give me a break. Throttle body injection is about one of the most in-efficient injection systems ever made. And there is no way you are
getting 37 MPG in a 350 TBI motor. Sorry it ain't happening. The computer in those vans/trucks is far from sophisticated, also with you bypassing the
oxygen sensor, which is what the computer uses to determine Air fuel ratio, you are undermining it's performance. Enough hogwash in this thread.
Unless someone has some independent verification from a testing company with paperwork and video documentation it is all hogwash. I can verify the
mileage on my diesel truck perfectly well in the low to middle 20's MPG.
Well, bigshow, you are entitled to think whatever you wish. I didn't post that for anyone to believe it, as in a cult belief, I posted it for other
car people who may wish to investigate how to get better mileage on their own vehicles. I do not use the factory TBI setup, as it stated in the post.
Holley has done wonders in the fuel management tech dept. You response is about average of the many I get when talking about how to do this on a big
V-8 engine, the men stand around and claim it cannot be done, while the women ask where do I get the parts, and how do I do this at home? I will be
thinking about you as I drive right past the station today.
Here is another car my son and I built a few years ago. Several mechanic friends said this could not be done, period. Shows that I am not good at
listening to current tech.
We bought a 1980 Pontiac Bonneville from a scrap yard for $250, rust free body, blown engine and trans.
My son has this 1976 Oldsmobile 455 V-8 that has been built.
0.40 over bore with 10.5: 1 compression Jahns forged pistons, Polished and
internally balanced steel crank, with knife edged throws, and cross bored. General Dynamics .292/269 lift cam, roller lifters and heads adapted for
Ford style roller rockers, heads shaved 0.40, polished and ported intake and exhaust ports, these are the "D" heads, for you Olds fans. 750 Holley
4bbl carb on an Edelbrock high-rise duel stage intake, big tube headers. 50,000 Volt MSD ignition system. The engine produced 416 HP on an engine
To install this monster in the Pontiac, a 4dr sedan 2800 pound car, we had to fabricate engine mounts, the engine had to be lowered 4", and moved
back 3 1/2" to clear the hood and fan assembly. Coupled to a Street Fighter Turbo-Hydromatic 400 trans, this car got consistently 28 miles per
gallon. Not as good in town, of course. The car is now wrecked, but we still have the engine. Now nobody has to say I don't believe it, most of you
will never believe any of this. I don't care. For those motor heads out there, pay attention. For the rest of you, nothing to see here, move along.