Quote:
Originally Posted by NewYorkJon34
I know you have a full stillen set-up & you made 390whp (mustang), Im curious to see how much more power I'd make with my full Fast Intentions set-up. I thought you would have actually made more power on the mustang dyno since stillen claims 515hp for the carb kit. And yes I know different dynos read differently, but a drivetrain loss of 125hp seems kinda high to me. I thought it would have at least made at least 420Whp-ish on a mustang dyno.
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You assume you will make more power because you have FI pipes, I'm not really sure why. Not really sure where you saw that they make more power than the Stillen setup? All the guys I've seen with the crazy numbers like 320-330whp on mustang dynos on bolt-ons are running Stillen cats and exhaust.
You have to remember a couple of factors when you look at my numbers. 1) Mustang dynos read lower than your average dyno like the dynojet Stillen and GTM use. So to say that 125hp is all drivetrain loss is unfair. Part of it is drivetrain loss, I'd say about 12% is drivetrain loss. So right off the bat take off about ~45hp from your 515 advertised.
2) As I mentioned Mustangs read lower than dynojets by a good 7-10% (take my baseline as proof. I dynoed in at 256whp on the mustang dyno, when the average baseline for a dynojet is 275whp) So you can substract another ~35hp.
3) The tune is not maxed out. We had to leave some margin of safety considering the ambient temperature and humidity down here in FL. It was 90 degrees here last night around 2AM. (I know you know) I track the car now and then so I can't afford to sacrifice safety over performance.
4) It was about 100 degrees ambient temp when I got tuned. (not much can be done about that)
Now in reality all these numbers are just numbers. They don't really mean anything. What you have to look at is the following... Stillen started at 276 and ended at 438. Thats a 58% increase in power. I started at 256 and ended at 383, that's a 50% gain. Once you factor in ambient temps, humidity, safety margin and the fact that we only really did 3 runs to get final numbers then I think its perfectly understandable to lose 5-10% in power. If I had been gunning for dyno queen numbers I would've done low temp runs with a bunch of ice in the reservoir. That wasn't the goal though.
One thing I noticed today when I went out to get some video is that oil temp really is a killer on these cars. I'm by no means overheating, but even at 220 degrees the car probably loses a good 30whp. I think I might invest a little money on heat shielding, a fan for the oil cooler and maybe even a cryo2 setup.