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I have a Roush Phase 2 on my 16. Mine just has minor mods with around 670ish WHP on 93. You will get pretty much the same results with any blower on a GEN2 unless you want to push it to the upper limits.

This all makes perfect sense. The thing that seems odd to me is why don't other cars have this issue? I don't recall this being an issue with the 03 Cobras even when running higher HP levels. My car is already loud enough with the Borla Atak exhaust. I definitely don't want catless like...

You do have to shift them quickly to keep in boost or setup the "no lift shift" in the tune.

The lower models such as the M340 with the B58 are monsters as well once lightly modified. Even the old 335s like I have with the N54 with simple mods will easily run with or outrun a new stock A10 Mustang. They're reliable up to 600-650 WHP on the sealed engine.

So it's highly likely that Cats are on borrowed time with FI? Why do these cars in particular have this issue and what is recommended? offroad headers or aftermarket high flow cats?

I think a lot more people do it than you think. The issue is having the right setup. Guys running without the right tires and rear gears that are too high for a FI car aren’t going to do it easily if at all.

Those short gears definitely would have made it more of a challenge. You had to be well into 5th crossing the line.

HP output is the same. It just changes steering, throttle response, traction control and I think suspension in some models.

He has a GEN 2 which is the 2300 blower. They don't have the heat soak issues like in a Gen 3. However, ice never hurts.

That will probably get you around 600 WHP on 91. That's definitely enough if you can get it to hook. IMO 3:73s with the MT82 are not ideal for a supercharged setup. I have 3:55s and feel like the gears are way to short. I think I'm going to switch mine to 3:15.

Not a GT500. I didn’t notice this was in the GT500 section. There were a lot of non-gt500 responses.

Turned 8,000 on my 2016.

What are you making with the 69mm? Are you using E85?

I wasn't implying that anybody should be sneaky about the car's history. It also isn't realistic in my mind to remove the parts and sell separately. I was just making a point that if someone did, they would get more $$ than KBB. So why shouldn't they ask a premium with the parts still on the...

What’s the issue with what I said? Point was that whether you sell the items as a package or separately, there is more value.

Given the price of blower kits and supporting mods it makes sense that people ask a premium with these items added to a car. If you can't get more than KBB value after adding all the extras, then it would make sense to put the car back to stock, ask your KBB value and sell the blower kit and...

I disagree. The 18% loss isn't realistic in a scenario running to redline. That's way too high for these cars. I was using the 18% loss due to only revving to 6500 RPM in both your stock and Whipped dyno. Your stock and supercharged dyno was an apples to apples comparison because they both...

Thanks. That makes more sense. 18% loss when only revving to 6500 RPM sounds reasonable for the stock numbers assuming the Ford 480 rating is accurate. However, as you said, using that same 18% should have gotten 635 to the tires with the Whipple (revving to the same 6500 RPM) if the 775...

I use 5W30 also. Mine doesn't make any ticking noises, but it only has maybe 7k miles on it.

Your numbers still seem extremely low. I get the impact of the lower RPM and higher altitude, but I'm having trouble following your logic.... If I read correctly, both of your dyno runs were on the same dyno (same altitude) and both up to 6,500 RPM. Given this information I would expect both...