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.
 
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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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..
 
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
 
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!
 
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!
 
nick c said:
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
Click to expand...

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.
 
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.
 
Y-Blockhead said:
Forget all that high compression head, big cam and such, just put a 'Hair Dryer' on it and call it a day... :cool::cool:

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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.
 
updraught said:
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.
Click to expand...

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????
 
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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