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Old 03-05-2020, 08:06 PM   #21
alexiskai
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Default Re: 6.1 High Compression Head

Hey, not everyone on this board is as quick on the uptake as you, y'know.
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Old 03-05-2020, 08:34 PM   #22
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Default Re: 6.1 High Compression Head

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Hey, not everyone on this board is as quick on the uptake as you, y'know.
Sorry, I'm feeling lighthearted this afternoon. My CEO gave me permission to buy a Mitchell...
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Old 03-05-2020, 09:03 PM   #23
Jim Brierley
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Default Re: 6.1 High Compression Head

From Alexiskai, Maybe better phrased as "compression and airflow" after all, when you switched to the downdraft carbs I'm guessing you installed a new intake manifold.

Compression alone will improve performance at low RPM, but airflow is key to unlocking performance at high RPM.


Yes, I did switch manifolds as well.

On reground cams. A stock regrind will perform as well as an original stock cam. The difference comes when you go to a 'touring' cam or 'race cam'. Modified cams move the power/torque range up the RPM scale, and take advantage of the inertia of the air entering the cyl. Performance cams need, carb and compression, bigger intakes, ports, etc. to reach max HP. A lot of engine builders install bigger intake valves, not much if any advantage in an otherwise stock engine. The small stock carb limits the power, not, IMO, the valve size. A high-performance cam installed in an otherwise stock engine will actually hurt performance. High valve over-lap won't allow good air flow at low speeds and the small carb won't allow much air flow at higher RPM's.
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Old 03-05-2020, 11:02 PM   #24
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Default Re: 6.1 High Compression Head

Taco is a down under saying , short for rev counter, can be a few differences in sayings between countries, Right updraft ??
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Old 03-05-2020, 11:16 PM   #25
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Default Re: 6.1 High Compression Head



you're going to love the mitchell..hit second low at 5 mph or so run the gear out,synchro shift to second high..peaks at about 50..one synchronized shift,drive round town..
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Old 03-06-2020, 02:05 AM   #26
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Default Re: 6.1 High Compression Head

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Taco. Queens English. Why can't you lot spoke proper?

https://www.tr-register.co.uk/forums...o-rev-counter/
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Old 03-06-2020, 10:43 AM   #27
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Default Re: 6.1 High Compression Head

No, no, no... Tacos are for eating!

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Old 03-06-2020, 01:00 PM   #28
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Default Re: 6.1 High Compression Head

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Taco is a down under saying , short for rev counter, can be a few differences in sayings between countries, Right updraft ??
Taco or Tacko?
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Old 03-06-2020, 01:11 PM   #29
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Default Re: 6.1 High Compression Head

I've followed this subject closely for years, and I'm still trying to learn more. If you go to Ford garage .com and compare the Stipe 330 and the stock model B cam you will see they are almost identical, so is there any advantage to using a 330?
some like tacos on a plate or napkin, I like mine on my steering column
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Old 03-06-2020, 01:19 PM   #30
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Default Re: 6.1 High Compression Head

QC & Updraft, Never understood while youse guys never learned proper English! Most of you are direct English descendants. Us guys here in the North speak it perfectly!
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Old 03-06-2020, 01:53 PM   #31
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Default Re: 6.1 High Compression Head

Jim

That’s funny, I never heard proper English until I worked in Mexico at the university
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Old 03-06-2020, 04:38 PM   #32
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Default Re: 6.1 High Compression Head

I realise making this comment is going to be risky so please don't jump on me too hard.
I once found myself having to explain to someone what an oxymoron is. I thought an example was the best way to go so I asked them if they had ever selected a language on the computer. They had so I said that "American English" is an oxymoron. They understood immediately!
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Old 03-06-2020, 05:14 PM   #33
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Default Re: 6.1 High Compression Head

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Originally Posted by nick c View Post
I've followed this subject closely for years, and I'm still trying to learn more. If you go to Ford garage .com and compare the Stipe 330 and the stock model B cam you will see they are almost identical, so is there any advantage to using a 330?
some like tacos on a plate or napkin, I like mine on my steering column
Harvested a damn near virgin late high lift B cam from a junker engine.And saved myself 300 bucks.B cam will rev to 2800.As Mr Brierley said,you gain the best return backing it up with compression increase,fuel,exhaust and a mechanical advance distributor..its all about balance ...and fish tacos,crispy fish tacos.
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Old 03-06-2020, 06:31 PM   #34
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Default Re: 6.1 High Compression Head

Forget all that high compression head, big cam and such, just put a 'Hair Dryer' on it and call it a day...

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Old 03-06-2020, 06:36 PM   #35
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Default Re: 6.1 High Compression Head

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Taco is a down under saying , short for rev counter, can be a few differences in sayings between countries, Right updraft ??
Tach-ometer


Taco
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Old 03-06-2020, 07:44 PM   #36
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Default Re: 6.1 High Compression Head

On trashing the English language.

So it was Webster who made a mess of your spelling. And now you can't spell either.
https://www.youtube.com/watch?v=I-WJVDDZTFY

This is the dictionary you want: "The Macquarie Dictionary (/məˈkwɒri/) is a dictionary of Australian English.
Notice how we show you how to pronounce it too.
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Old 03-06-2020, 08:42 PM   #37
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Default Re: 6.1 High Compression Head

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Forget all that high compression head, big cam and such, just put a 'Hair Dryer' on it and call it a day...

I have a TD04 waiting shop time,boost raises compression and volumetric efficiency.Hiroshima hair dryer,nagasaki spooli boi,the tuner kids call it all kinds of names,my favorite is Spoolius Caesar.
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Old 03-06-2020, 09:23 PM   #38
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Default Re: 6.1 High Compression Head

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On trashing the English language.

So it was Webster who made a mess of your spelling. And now you can't spell either.
https://www.youtube.com/watch?v=I-WJVDDZTFY

This is the dictionary you want: "The Macquarie Dictionary (/məˈkwɒri/) is a dictionary of Australian English.
Notice how we show you how to pronounce it too.
I'm afraid I don't accept that Americanisms are enriching the English language. So much of the subtlety of the language is lost when the spelling of words is homogenised. For example, "tire" is to make someone exhausted - ready for sleep, not something you put on the wheels of a car. (tyre). To give someone a check is to impede their progress. To send them money, one would use a cheque. The list goes on and on thanks to Mr Webster.
How did this thread end up here????
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Old 03-06-2020, 11:09 PM   #39
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Default Re: 6.1 High Compression Head

I don't know, but the English language is tough.

Take for example two, two letter words?
Go and Do, I always ask why it is not Goo and Doe.....

Putting a blower on it is just being too lazy, move the valves to proper position and inject it!!
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Old 03-06-2020, 11:59 PM   #40
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Default Re: 6.1 High Compression Head

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How did this thread end up here????
I don't know but it has been interesting...
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