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tickford_6
Fordmods - Getting Side Ways
Age:25
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Location: townsville QLD, Australia
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 Posted: Wed Nov 05, 2008 7:52 pm Post subject: |
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| xr8boy wrote: |
seat timing? please explain
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a rocker ratio change will alter timing at lift, ie the point of 50thou lift will alter and so on. full lift will be at the same point.
seat timing won't change, it's the same camshaft, it will begin to lift the valve off its seat at the same point and it will reseat the valve at the same point. |
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Scaffy
Fordmods - Getting Side Ways
Age:30
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| Posted: Wed Nov 05, 2008 9:17 pm Post subject: |
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| One thing to remember that the dynos they use over there are a fair bit different to ours. They read considerably higher than what ours do. I assume their baseline run was on a stock configuration. 250rwhp with e7s and ho manifold? I think my car as stock with e7s and ho manifold made 170 odd rwhp, then with u/d, maf, exhaust and tweecer I got 211rwhp. Stock US over stock Aussie, there's around a 30% difference at the wheels! If you take the 30% off their final figure, you're looking at around 250rwhp... |
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tickford_6
Fordmods - Getting Side Ways
Age:25
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Location: townsville QLD, Australia
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| Posted: Thu Nov 06, 2008 8:06 pm Post subject: |
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| Scaffy wrote: | | One thing to remember that the dynos they use over there are a fair bit different to ours. They read considerably higher than what ours do. I assume their baseline run was on a stock configuration. 250rwhp with e7s and ho manifold? I think my car as stock with e7s and ho manifold made 170 odd rwhp, then with u/d, maf, exhaust and tweecer I got 211rwhp. Stock US over stock Aussie, there's around a 30% difference at the wheels! If you take the 30% off their final figure, you're looking at around 250rwhp... |
the one i'm talking about was all done on an engine dyno,
they also make mention of the difference between STP and SAE correction factors, in this case it was 251hp STP or 225hp SAE. (which is almost spot on what that particular engine is rated at by Ford. |
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Scaffy
Fordmods - Getting Side Ways
Age:30
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Location: Perth WA, Australia
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| Posted: Fri Nov 07, 2008 7:23 am Post subject: |
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Oh ok, when I read the details of the car they used I assumed it was done on a chassis dyno.
It might have paid for me to read the article  |
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tickford_6
Fordmods - Getting Side Ways
Age:25
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Location: townsville QLD, Australia
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| Posted: Fri Nov 07, 2008 7:51 pm Post subject: |
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| Scaffy wrote: | Oh ok, when I read the details of the car they used I assumed it was done on a chassis dyno.
It might have paid for me to read the article |
it's in the FALL 2006 HOT ROD magazines Do It Yourself Series "Engines' edition. gees that was mouthful.
Also has a cool 12page builders guide to the Flathead V8
and good artical on Todays Oil vs flat tappet cams |
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tickford_6
Fordmods - Getting Side Ways
Age:25
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| Posted: Sat Nov 08, 2008 4:32 pm Post subject: |
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a little more detail?? |
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skidder
Fordmods - Getting Side Ways
Age:19
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| Posted: Sat Nov 08, 2008 4:40 pm Post subject: |
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wide open throttle  hehe |
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tickford_6
Fordmods - Getting Side Ways
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| Posted: Sat Nov 08, 2008 5:09 pm Post subject: |
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| skidder wrote: | | wide open throttle hehe |
whats the question? |
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skidder
Fordmods - Getting Side Ways
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| Posted: Sun Nov 09, 2008 8:33 pm Post subject: |
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| yeah i knew that...was sleep deprived and attempting to take the piss out of it |
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