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What's the weight difference? You don't believe the ford's dyno? If so that's cool. How fast is S550 with Ford Performance Stage 2, on tires and weight equal to Boss? How many monkey's can dance on the head of a pin? I said in my first reply GT is not a drag car. Torquey manifold shines even...

I was replying to your claim DI lowers PM IAW table 7. Yup they have fleet emissions quota and that's what I just said in my previous reply. I would need to read the data on DI & cats. Most people drive below 3k. We know hp & tq of '11, Boss, '15, '15 w/ Ford Performance Package Stage 1 &...

It stops losing at 5.7k but doesn't start outperforming till ~6.7k. So we're looking at gains at 1,000-1,200 rpm at very top end vs losing at first 4,500-5,000 rpm. That's assuming 7,900-8,000 rpm passes their warranty beancounters. 7,500 rpm seems more reasonable; giving 800rpm only. You know...

'15 makes 448hp & 416tq with Ford Performance 91 octane tune. Which is +4hp & +36tq over Boss' standard 91 tune. Even with stock 87 octane tune '15 intake manifold makes more power under the curve than Boss (+20tq peak & only loses 9hp peak). '15 intake manifold is good. Yes '15 could've been...

Ask Full Race to build you a twin turbo setup. They're in Phoenix.

Oh and, suspension tuning should be matched to the tires. If we know the tires included with MR system. That would give an idea of how stiff relative to other Mustangs GT/PP/GT350.

Magneride is tuned to maximize traction when you launch, minimize dive when braking. It controls body-roll proportionate to speed & steering angle during cornering. Designed to be soft while cruising slow and stiffer when going fast. Of course all within limits of spring rate. You can't have...

Ignition cut 2-step and cat delete will shoot flames all day. Use with caution; will raise EGT.

Feel dirty, like I'm getting sucked into caring about 0-60, which I don't. Just trying to better guess the hp. True. I can't find shift speed for a 6R80 or 10R80 (other than Chevy claiming their version is faster than Porsche PDK, ~200msec). First gen ZF 6sd was about 800msec 1-2 upshift...

Just tried two random online 0-60 calculators. To get 0-60 in 4.3sec with 435hp both required the same 3,863lb input. Both calculators claim 479hp puts 3,863lb at 4.0. Of course, I'm sure someone can find a better method of calculating. So between 457 to 479 Anything less, they...

Just noticed he said at 4:02, 0-60 in 4 sec range. So it's not getting too much or would drop into 3s. GT is 4.3 now, right? Camaro SS 4.0? I'm sure someone could figureout how much hp needed for 4.0. That would give upperend range of power.

Ford's Tom Barnes Vehicle Engineering Manager says "changed the intake system because the key is to get air into the system..." then he links it to raised hp, tq & rpm. Source: 2:00 on your video link That alone is good for 1-25hp & 1-25tq :) Also in video, double-over drive. (Someone...

Current 435hp/400tq makes 448hp/416tq w/+40tq @ 1,500rpm with 50-state legal Ford Performance Power Pack 1 (drop-in filter & tune) Source:http://performance.ford.com/enthusiasts/media-room/2016/07/power-packs-available-from-ford-performance-parts-for-2015-17-mu.html Mustang vs Camaro: I...

11:1 to 12:1 strictly speaking increase power 2.1% (10 to 11 2.5%; 12 to 13 1.9%; yes not linear) E= 1 - 1/R^(k-1) Source: http://web.mit.edu/16.unified/www/SPRING/propulsion/notes/node25.html 5% is combined effects Source on previous reply 435 to 457hp is based on 5% of known...

DI effectively increase knock resistance of fuel. 5 points for gasoline and 18 points for E85. So premium 91 becomes 96 and E85's 97 becomes 115 (all in AKI or (R+M)/2) Source: Knock limits in spark ignited direct injected engines using gasoline/ethanol blends by Kasseris, Emmanuel P at MIT...