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05-18-2021, 10:09 AM | #21 |
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Re: High Compression Head Review
Ron did just fine in my opinion, the most important decision was based off His utilization of the vehicle. Not that He may change it later on, it suits the purpose now.
Combustion efficiency has many factors, timing only plays a part and must be managed to minimize detonation. Fuel alone will not cure it (octane) and the combustion chamber shape is critical. Modern technology of such provides much higher engine speeds and more conservative timing settings. John
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05-18-2021, 10:20 AM | #22 | |
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Re: High Compression Head Review
Quote:
Around town I just use 2nd low and high, unless I have to start off on a hill then I shift to 1st. But we are getting off the subject... Last edited by Y-Blockhead; 05-18-2021 at 12:02 PM. |
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05-18-2021, 11:04 AM | #23 |
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Re: High Compression Head Review
I am happy for you as well. The most important thing is to do what you feel is right for your car and being happy with your decisions. Last time I checked this was still a free country but that is quickly changing.....also a different discussion on a different forum.
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05-18-2021, 11:25 AM | #24 | |
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Re: High Compression Head Review
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05-18-2021, 11:29 AM | #25 |
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Re: High Compression Head Review
I'm glad the original poster is finally happy with a high compression head.
I have to agree with Brent and a few others, there is a lot of misinformation in this thread and similar threads. When someone asks how can they drive 60 mph all day, and the responses vary from transmission type, spark rod set to 9:00 and leave it, put a centrifugal advance distribution in, and run the mystery oil! Changing out parts is not the simple solution. These things are simple, and forgiving machines. There's too much over thinking, without the understanding of how it all comes together and works. Like the T5 transmission comment, do you know how many variations of the T5 transmission exist? Dozens! Just be careful with the information, especially considering this will be searchable and will probably come back up years from now, with a new question from a new person trying to learn. If I followed the timing advice in this thread alone, I'd be overheating, and would kill my gas mileage during every trip. |
05-18-2021, 11:30 AM | #26 |
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Re: High Compression Head Review
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05-18-2021, 11:37 AM | #27 | |
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Re: High Compression Head Review
Quote:
And she could start out in 2nd gear and leave it there for around town driving. Back on topic, glad you're happy with the 5.5 head. I like mine too. No change in top end performance (stock head did 65, so does this one) but a noticeable improvement climbing hills. |
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05-18-2021, 11:47 AM | #28 | ||
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Re: High Compression Head Review
Quote:
Quote:
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05-18-2021, 11:52 AM | #29 | |
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Re: High Compression Head Review
Quote:
The "three shifters" make people wonder at car shows... Last edited by Y-Blockhead; 05-18-2021 at 12:26 PM. |
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05-18-2021, 12:21 PM | #30 | |
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Re: High Compression Head Review
Quote:
As you point out, it's the jump from #4 to #5 here that raises eyebrows. There is no stated rationale for the decision except the appeal to Paul Shinn as an authority on cylinder heads. |
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05-18-2021, 01:26 PM | #31 |
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Re: High Compression Head Review
Paul Shinn..isn't he the guy who did the mitchell install video? Where they supported the weight of the car with concrete cinder blocks?
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05-18-2021, 01:34 PM | #32 |
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Re: High Compression Head Review
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05-18-2021, 01:58 PM | #33 |
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Re: High Compression Head Review
Maybe it was the famous video where they dragged the car with a tow strap around and around the parking lot for a long time because they claimed that all "Rebuilt" engines with Babbitt bearings were always tight until they were run!
The present version of that video looks totally unlike the original! Last edited by Benson; 05-18-2021 at 04:33 PM. |
05-18-2021, 02:15 PM | #34 | |
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Re: High Compression Head Review
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Why don't ya'll see who else you can rag on today? |
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05-18-2021, 04:54 PM | #35 |
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Re: High Compression Head Review
Just saying ...
If nobody says anything about Bogus information posted then the new guys will think that it is true story that you must drag a car around to start up a rebuilt engine. |
05-18-2021, 05:48 PM | #36 |
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Re: High Compression Head Review
Tod (who posts here) makes a stock looking 7:1 Winfield crowfoot head. You may want to check that out.
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05-18-2021, 06:36 PM | #37 | |
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Re: High Compression Head Review
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05-18-2021, 07:17 PM | #38 | |
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Re: High Compression Head Review
Quote:
JayJay
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JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan Last edited by JayJay; 05-19-2021 at 11:13 AM. |
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05-19-2021, 07:57 AM | #39 | |
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Re: High Compression Head Review
Quote:
I think the 6 to 1 head is very good as well and I know it performs better than the 5.5 with additional modifications. I have Babbitt bearings and have no intention of doing any additional performance modifications so the 5.5 head was right for me. No need for me to go higher as the 5.5 meets my needs. Ron |
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05-19-2021, 09:09 AM | #40 |
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Re: High Compression Head Review
Thanks Ron for your recommendation. Your advice has helped me decide to go with the 5.5.
Last edited by JimZ; 05-19-2021 at 06:46 PM. |
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