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Gryphon Programmer Edge Product has discontinued the Edge Evolution 2, but we still provide support and tuning for it. If you have a question or comment relating the Gryphon (or Evolution) programmer, post it here. |
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#11
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There may be an easier way though to get totally back to the "virgin" custom tune - just program it in and completely bypass the Custom Options step. Or, if you want to have a "Previous Settings" file that is mostly "virgin", open the Custom Options menu but DO NOT "Load Previous Settings". If I've got this right, you are now in the process of creating a NEW "Previous Settings" file, but most of the settings are what Bill wrote for you. There are two exceptions though - Tire Size (TS) and Gear Ratio (GR). One or both of those values will now likely be wrong and you'll have to manually set them. Check both and adjust as necessary. Then, scroll to "Done" and let it program. The new Previous Settings file will hold Bill's values and your TS and GR. As I said though, I don't know if the RPM drop during braking is normal or not, since I don't recall ever looking at it. I don't think I get that big a drop, but I cannot be sure. And, I'd give Bill's settings a try before trying to "customize" them. After all, it's what you paid him for. Also, if you don't like something in them, it's probably best to discuss that with Bill, so he can fix the root cause, which is different than you putting a "band aid" on it with "Custom Options". - Jack
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2014 F150 Platinum SCrew 3.5L EcoBoost 4x4 with SCT programmer |
#12
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I'll definitely be testing out his settings. I was just wondering if there was any improvements I should make prior, but since its my truck and I have my driving style, I suppose I am the only one who can answer than question lol.
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Appearance: Painted Headlamps/Fog lamps, 20% Tint, LED Reverse & Plate Lights Performance: 2.5" True Duals X piped, Rear Cats Deleted, Magnaflow 11" Bodies, Magnaflow 4x18 Rolled Tips. Suspension: Bilstein 5100 Leveling Struts & Rear Shocks. 20"x9" KMC XD Monsters, 33x12.5 Toyo M/Ts |
#13
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You ARE NOT going to see the values for GR and TS that Bill put into your program if you open the Custom Options menu! I know this doesn't make sense, but, it's the way the software in the Gryphon functions. If you bypass the Custom Options menu though, you'll load correct TS and GR values (unless you've put in new gears or wheels since your tunes were written). And, Bill tried to write tunes for you based on his understanding of your needs. I'd give them a chance. Oh, and I think the WOT shift points and max RPM Bill used was fine too.They're only about 100 above my settings and I asked for tunes that would save gas and give me good passing performance, not peal rubber off the tires from a standing start performance. - Jack |
#14
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Appearance: Painted Headlamps/Fog lamps, 20% Tint, LED Reverse & Plate Lights Performance: 2.5" True Duals X piped, Rear Cats Deleted, Magnaflow 11" Bodies, Magnaflow 4x18 Rolled Tips. Suspension: Bilstein 5100 Leveling Struts & Rear Shocks. 20"x9" KMC XD Monsters, 33x12.5 Toyo M/Ts |
#15
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I've had my truck dynoed........and with my setup, I was still building power at 5000 rpm's. My power actually topped out around the 5200 mark.......
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08 FX4 CREW K&N 63 series Intake Magnaflow SI/DO exhaust Custom tunes |
#16
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Hi Chris - The 08's have a somewhat different power curve than earlier models. I think they DO drop off later. I know your engine can develop more power and torque than mine.
Regardless, I really think Bill will set the WOT shifts at the correct points to get you what you want. And, thinking about it a bit more, it makes sense to set the shift point somewhat past the peak HP and torque point because then the shift will bring in the next gear at a higher RPM setting, overall, giving you better acceleration (if WOT acceleration is your bag). This of course means the max RPM has to be set higher too, so that the shift can complete properly. I DO want the acceleration, but I'm also interested in protecting the transmission, which I feel is a weak link in this truck. (Wish it was a manual). - Jack |
#17
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Darren, 3.1415 is pi (It's really closer to 3.1416). When you do this calculation: 17 x 25.4 = 431.8, you get the rim diameter in millimeters. Adding in 255 x 70 x 0.02 = 357 gives the additional diameter of the wheel contributed by the tire, so the overall diameter of the wheel is 788.8 mm. Now multiply by pi to get the unloaded circumference, which is about 2478.1 mm. OK, this is how far a wheel will roll in one turn if you take it off the truck and roll it across your garage by hand.
But, the truck's weight "flattens" the tire, effectively reducing the diameter under load. On the truck, one revolution will cover less distance than it did when off the truck. I've found for my tires that about a 3% reduction in circumference is about right. I suspect this will be close for your tires too, so subtract 3% or 74.3 mm from the unloaded circumference of 2478.1 which gives 2403.7 (round that to 2404). You can avoid all the math, of course, by just entering your tire size in the "Gear Ratio Calculator" that is one of the tools in Pegasus. The "Old Tire Size" you should enter is 255/70-17. The calculator has a default "rubber squish" of 5% which gives a circumference of 2421 mm. The calculator uses higher "squish" values because the rim doesn't deform, only the tire does, so the percentage change is being applied only to the tire's contribution to the diameter. I've found my calculator "squish" needs to be about 7%, and if I use that on your tires, I get 2399. A 6% squish gives 2410. So, you can see that the 3% total reduction I used earlier is between 6 and 7% rubber squish. Anyway, try 2404 (or maybe 2410, since you inflate your tires higher than mine) as a starting point. I think it will be close. (And I hope I haven't confused you too much)! By the way, 3.3 recorded miles in 3.0 actual miles is a huge error! (About 10%). And, showing more distance on the odometer than actually traveled says your tire size is too large. - Jack |
#18
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Appearance: Painted Headlamps/Fog lamps, 20% Tint, LED Reverse & Plate Lights Performance: 2.5" True Duals X piped, Rear Cats Deleted, Magnaflow 11" Bodies, Magnaflow 4x18 Rolled Tips. Suspension: Bilstein 5100 Leveling Struts & Rear Shocks. 20"x9" KMC XD Monsters, 33x12.5 Toyo M/Ts |
#19
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- Jack |
#20
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The max is actually 44psi. I have General Ameritrac's
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Appearance: Painted Headlamps/Fog lamps, 20% Tint, LED Reverse & Plate Lights Performance: 2.5" True Duals X piped, Rear Cats Deleted, Magnaflow 11" Bodies, Magnaflow 4x18 Rolled Tips. Suspension: Bilstein 5100 Leveling Struts & Rear Shocks. 20"x9" KMC XD Monsters, 33x12.5 Toyo M/Ts |
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