500 WHP, N/A on 93 octane, possible?

[NGOT8R]

Not even, solid tune on a Bullitt with headers, exhaust and tune are just shy of 500wheel

That’s what I was hoping to make, but it didn’t happen for me. I did Dyno with the hood down on my car. I’m sure I would have picked up a little more power, had the hood been up.

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[kevinvan6000]

@bluebeastsrt , how much horsepower were you making to run that 10.3 @ 135? I’m trying to get a feel for how much power it’s going to take me to run mid 10’s in the 1/4?

I think you'll get there on that 150 shot.

 

[Schwerin]

That’s what I was hoping to make, but it didn’t happen for me. I did Dyno with the hood down on my car. I’m sure I would have picked up a little more power, had the hood been up.

It's also likely a less forgiving dyno. Numbers really don't mean everything, they are just for trying to make Apple to Apple comparison.

 

[NGOT8R]

Whay kind of dyno? Tuning by James has a Bullitt doing 495whp with just e85, and Evolution has a 2018+ doing 500wheel with e85 headers and intake. American Muscle has a 2018 also doing 500wheel with the same mods as Evo.

Dyno Jet Dyno.

 

[bluebeastsrt]

@bluebeastsrt , how much horsepower were you making to run that 10.3 @ 135? I’m trying to get a feel for how much power it’s going to take me to run mid 10’s in the 1/4?

659whp on 93. Race weight 4100 pounds. A GT500 probably makes the same mid 600s and run mid to high 10s on street tires trapping 133.

 

[NGOT8R]

It's also likely a less forgiving dyno. Numbers really don't mean everything, they are just for trying to make Apple to Apple comparison.

Exactly! Numbers are nice, but I’m more concerned with having a good safe tune over numbers. Besides, what I lack in the NA tune, I make up with nitrous, so I’m very pleased with the car as it sits now.

 

[GreenS550]

Looked through a few of the dyno charts and it looks like it's a stretch. Does anyone have a formula for Gen 3 Coyote to make 500 WHP on 93 octane (no E85) without boost and have it still completely streetable?

Having owned a '19 Bullitt which is basically the same power as the M 1, I became so frustrated with the gearing I put a blower on it. Whipple. But, I really think the solution to enjoying the car and even doing decent 1/4 mile time lies in the axle ratio. Any other mod doesn't fix the gearing problem and even though the M 1 has a better transmission, 1st gear will be the culprit.

Instead of doing the tune, headers, etc, just change the axle ratio. That is my intention for the M 1. I kinda proved this in the '16 M6 I recently owned. Changed the axle ratio from 331 to 355. Rest stock. the improvement was noticeable. The '16 331 in first is almost exactly the same overall gearing the M 1 will be in 1st with the 373. You will be shifting at 50+ at redline in the M 1.

One of the reasons the 10R80 is so fast is because 1st gear is 4.70:1 with a torque converter vs 3.25:1 in the M 1. And, the 10R80 has seven gears to get it to 1:1 wheras the M 1 has 5 (though better than the 4 in my old BUllittt).

There are guys that did gears on the Bullitt and they love it.

 

[NGOT8R]

I think you'll get there on that 150 shot.

I sure hope so. I think it’s pretty impressive that a GT500 can run in the 10’s on factory radial tires. I don’t know if any manual trans S550’s doing that. Those autos are able to hook and book!

 

[VictorH]

So based on the replies I take it, 500 WHP on 93 octane with no boost, street motor (race motor sure, no biggie), has not been done. If it has please list the parts and/or builder.

 

[NGOT8R]

So based on the replies I take it, 500 WHP on 93 octane with no boost, street motor (race motor sure, no biggie), has not been done. If it has please list the parts and/or builder.

It would also be nice to know whether the hood was up or down on the cars when Dyno’d.

 

[Nuked]

I just don't think 93 is going to allow you to consistently and safely make 500whp. Sure, you can cram timing in it and turn off the knock reduction for a glory pull but for a street car that needs to be somewhat safe you really need E85 to pull it off consistently and safely.

 

[GreenS550]

Interesting reading. What kind of WHP has been obtained with an E85 tune only?

 

[friedmud]

AmericanMuscle has this video showing them getting 475 rwhp with only bolt-ons and a remote tune on 93.



Edit; I know it’s not 500… but it’s still dang impressive for how little modification it is!

 

[TGYNYY]

So, what are the ingredients? Stock the Coyote is making about 95 HP/L in Bullet or Mach 1 form, to get 500 RWP will probably take about 115HP/L ( 575 HP at the crank). It's the old saying, HP cost $$, how fast do you want to go? I'm coming from a much more expensive platform where headers run $4-5K, cams $3-4K and a stock rebuild is $20K. Not looking to dump a ton of money, but if it's possible but not ridiculous then game on.

What the hell LTH are costing you $5K l?!

 

[WildHorse]

If it has please list the parts and/or builder.

Youtube steeda 'silver bullet'. They made well north of 500 hp.

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