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He has only been sitting for a few minutes - after driving it. The exhaust is still very hot for a few minutes after driving. I know. I have touched it and gotten blisters.

11.6 in the quarter mile is not anywhere close to 810 horsepower, which should be down in the 10s.

So your comment was sarcastic? Most of us are not tuning Whipple supercharged cars and have no idea to have even caught on to your comment. Sorry. UPDATE: So I started looking around and it appears supercharged cars run full throttle air fuel in the 11s with very few even touching 12:1 much...

So about leaning the car out, Whipple said that running rich was intentional to save the catalytic converters. They do have to warranty this setup. Nevertheless, the 810 hp is advertised as the result with the setup just the way it is, rich and all. Obviously, custom tuning, you can do what...

But the stage 1 is advertised at 810, and they tested it in seventh gear. 629 at the wheels is not 810 at the flywheel If your octane is correct, then that was not holding them back

:crackup: Laughing because it is a dyno result when the OP asked for anything but dyno results, but . . . at the risk of dragging this thread off topic, they used octane boost and still got only 629 horsepower????? :shock:

So why? Is this timing issue (too far advanced for boost) speculation or confirmed? Have there been a lot of warranty claims for Stage 1 Whipple owners? Whipple says Ford is the hold up. Is Whipple lying? What does Ford say?

It was a tattoo - misspelled. So a lifetime mark of "NO REGRATS" Do you regret that tattoo? Get it?

They are starting to show up in the US https://bobistheoilguy.com/forums/threads/gasoline-particulate-filters-now-coming-on-vehicles-in-the-us.389765/

I assume that 500 hp is not at the wheels? https://www.corning.com/worldwide/en/products/environmental-technologies/emissions-control/what-is-a-gasoline-particulate-filter.html

When kidnapping, make sure not to leave them back there too long. Get them to a safe house to wait for the ransom.

305 on rear, 11" Link: Sep 16, 2025

19 x 11 https://lmr.com/item/SVE-351913/sve-mustang-mhp1-wheel-19x11-gloss-graphite-05-22 Very close in appearance

Oh, ok. Different wheel. Sorry for the distraction.

I like that trunk liner.

Again, there is an aftermarket option for 11" rears that looks stock - see post #32. 10.5" front is available, too. Basically same appearance, width, and backspacing and offset as stock. Since you are ok with cast wheels, the aftermarket one that looks the same are actually a significant...

Just leave it in Normal mode, which will leave the traction control on. If the tires exceed road speed, the ECU will pull power, just like in every other car. ESC will also kick in to keep the rear end from coming out of line too far.

How on earth is traction manageable with a Whipple? Are you leaving it in normal mode with the traction control on, so it pulls power? Putting my Dark Horse in Track or Drag (no Whipple, just the stock engine) results in zero traction until I am rolling well on down the road, even if I get...

You are of course correct. Offset is the distance from the centerline of the wheel to the mounting surface of the wheel. Therefore, a higher number (52.5mm v. 24mm) offset has less of a "dish" meaning it is actually going to mount further inward. I had it backwards. Sorry for the confusion...

See post #32 Those look very close to stock. They also make a 10.5 to fit the front (not shown on post #32), matching the Dark Horse handling package.