New manifold


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By DANIEL TINDER - 15 Years Ago
Just had a long conversation with the Pony teapot tech. about failing accelerator pump cups. He's at a loss, and will just send me a handful. Since I could likely change them blindfolded by now, no big deal I guess. Will consider it just another routine maintenance chore.



FYI: Described John's new aluminum intake (in conjunction with latest head testing data). He expressed disbelief re: drivability (no heat riser), and superior 750 Holley performance on such small displacement (guy is NOT a Holley fan, by the way).
By PWH42 - 15 Years Ago
I've been running my Y-blocks for years with the intake heat crossover comletely blocked.I drive them in all seasons here in the Midwest and have never experienced any kind of problems associated with no manifold heat.
By crenwelge - 15 Years Ago
I commuted to college 200 miles a day every day for 5 semesters back in the 60's. I always had the heat blocked off because I wanted the heat to go out the tail pipes instead of staying under the hood. The only purpose I could figure out was to operate an automatic choke. I kept my choke open all the way. I think if you run a Y wide open for several hours a day, a choke isn't needed anyway. Y blocks aren't near as cold natured as inline engines anyway.
By DANIEL TINDER - 15 Years Ago
PWH42 (5/15/2010)
I've been running my Y-blocks for years with the intake heat crossover comletely blocked.I drive them in all seasons here in the Midwest and have never experienced any kind of problems associated with no manifold heat.




I think traditionally trained carb. specialists find it hard to accept that OK drivability IS feasible without manifold heat. The increased volatility of modern gas may be the key.
By PWH42 - 15 Years Ago
The specialists may find it hard to accept,but it works fine for me.As Kenneth said,apparently the Y-blocks just don't need carb heat.
By aussiebill - 15 Years Ago
PWH42 (5/16/2010)
The specialists may find it hard to accept,but it works fine for me.As Kenneth said,apparently the Y-blocks just don't need carb heat.

I,m with you guys! particularly in hot climate countrys, but guess in north america would be more functional.

By DANIEL TINDER - 15 Years Ago
I'm assuming that back when gas was less volatile, the power loss of an overheated intake charge was considered a reasonable tradeoff for cars that had to perform reliably in sub-zero weather (no one likely ever complained their cars were TOO powerful). Stumbling/stalling on the way to work some winter day would predictably elicit howls of customer indignation. I don't know about the land of OZ, but US corporations have always designed their products using the "lowest common denominator" theory. Thus (for example), our commercial TV programing targets 12 year old intelligence levels.