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2004 to 2008 F-150 and Mark-LT
4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs.


View Poll Results: What engine do you have?
4.2 0 0%
4.6 56 26.17%
5.4 157 73.36%
Other 1 0.47%
Voters: 214. You may not vote on this poll

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  #1  
Old Wed, February 18th, 2009, 02:49 PM
ccoll5 ccoll5 is offline
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I drove the Ranger to work yesterday because the F-150 was at the shop getting an exhaust system put on (Flowmaster 40 series SI/DO), and I felt like the Ranger was working really hard to drive 60-65 mph, feels a lot different lol.
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  #2  
Old Wed, February 18th, 2009, 03:23 PM
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Buckeyes903 Buckeyes903 is offline
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Quote:
Originally Posted by ccoll5 View Post
I drove the Ranger to work yesterday because the F-150 was at the shop getting an exhaust system put on (Flowmaster 40 series SI/DO), and I felt like the Ranger was working really hard to drive 60-65 mph, feels a lot different lol.
Yeah I drove mine the other day and it felt sooo slow, and with it being a stick was funny to drive again. I think the top speed on my Ranger was 80 downhill haha
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  #3  
Old Sun, June 28th, 2009, 01:06 PM
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Just 2 more days and I can finally place my order for the Gryphon. Seriously can't wait.
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  #4  
Old Wed, August 12th, 2009, 09:28 PM
Circuit Circuit is offline
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Best 0-60 as of right now is 9.12 on Gryphon stock level 2 but I can't find a place to do it without getting major wheel spin which makes my foot let up a bit without me thinking.

Once I get as much of this 87 octane out I'll be filling it up with 94 and setting it to level 3... then I might have to buy some new tires...

Oh and the belt chirp is awesome at wot when shifting. I have never owned a vehicle that was as fast as this thing is now. I forgot I had a V8 under the hood. I used to have a 1976 Chev C20 with a 350 and my little 281 Windsor out does it hands down now.
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  #5  
Old Sun, October 11th, 2009, 02:48 AM
bustintheirazz bustintheirazz is offline
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I checked mine, I am getting 7.63 for my 0-60. Im running a custom level 2 and have 33" Load range E. Does anyone know how to convert your tire size to the (mm) on the gryphon? When I do my conversion of 33" to mm I get 838.2mm. Something that I am missing?
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  #6  
Old Sun, October 11th, 2009, 10:30 AM
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Jackpine Jackpine is offline
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Quote:
Originally Posted by bustintheirazz View Post
I checked mine, I am getting 7.63 for my 0-60. Im running a custom level 2 and have 33" Load range E. Does anyone know how to convert your tire size to the (mm) on the gryphon? When I do my conversion of 33" to mm I get 838.2mm. Something that I am missing?
Sure - the 838.2 is your tire's diameter in millimeters. You need the circumference, so multiply that by pi, which gives you 2633.3 mm. But then, deduct some for "squish" (often about 3%) so multiply by 0.97 and you'll have 2554 mm, which is the size I'd try.

- Jack
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  #7  
Old Sat, December 5th, 2009, 02:53 AM
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If at all possible, use the manufacturers website to determine the "Rev per Mile" rating of the tire. Then to convert to millimeters, use this formula...

1609344 / Rev per Mile = Tire Circumference in mm

That helps eliminate any guesswork.
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