Originally Posted by Teck-9
The final product will look like this.
NW DCAI with K&N extremes and 74mm tb.
KV 85 plug wires and NGK iridiums 1 heat range colder.
Updated fuel filter/regulator and oil catch can
NW SRT all - cat delete w/ cut-outs and magnaflow cat-back. (at least where the cats were, lol.)
Evo-sport under-drive pulley kit and Air Conditioning delete.
ECU reflash.
I hope to be near stock SRT levels by then.
Tech, just for the sake of argument, let's say you succeed in your attempt at squeezing 300 hp out of your NA car by throwing EVERYTHING at it.
You would still only have a car that would perform about the same way a new Hyundai Genesis 3.8 (automatic) does. In other words, a 14 sec. machine.
Yes the Genesis weighs about 400lbs. more than the XF, but it has the one major "ingredient" the Crossfire doesn't. That would be its 3.73:1 differential.
We've discussed this before in other threads that you have started, but it's a simple fact, (IMO) the NA cars just don't have enough torque to over come their tall gear ratio to turn them into a consistant 13 sec. car.
Personally, I've always felt that has been the biggest road block in the NA's character. Until somebody (Rudy) is able to crack the Mercedes code that cripples the "automatic" cars by going into "limp" mode anytime a different gear ratio is installed, I'm afraid that's the way it's going to stay.
I sincerely hope you can prove me wrong, I'd love to see an "NA" break into the 13's at some point in time. I'd really love to see a relativily "stock" NA do it even more. But if it's going to cost you as much as it would to purchase an SRT to do so.......well you've heard it before.