Since this is a kit and not a product, you’re buying a relationship with a shop that will help you iterate on it until you get the results you want. For you, that would be a 10 second quarter mile. For me that would be a 30 minute track session on a 100 degree day. And yes, the dyno matters.
why are you more interested in a piece of paper than you are of actual acceleration results? It’s so strange this infatuation with the dyno. Frankly it is NEVER from someone anyone should take advice from on power parts. I think that’s telling.
piece of paper vs. acceleration results
hmmm…let’s think about it
If you claim you want something with a nice curve…you have a TVS 1320 on a fuckiing 3.0 Audi engine. It will have a nice curve even if a monkey tunes it. You think suddenly it’s going to take on the shape of a 1.8T with a GT35 turbo? Big torque spike at 5000 rpm and a shit curve? No, that’s never going to happen with a TVS1320 3.0T. So don’t say that’s why you want to see the dyno.
You want 30 minutes of track session performance? That has nothing to do with the shape of the curve, so don’t say that either.
Here is the dyno for the 3.0TFSI with a revo 1+. It’s fucking perfect. Nothing this perfect has happened outside of a Porsche GT motor. If the TVS 1740 puts a camel hump in that torque curve, I don’t want it.
Here’s an F80 M3 turbo dyno (same dyno same day same smoothing). It’s the most jarring, shitty throttle I’ve ever seen outside of a Mitsubishi 3000GT. Maybe it’s because it also uses Mistu turbos, IDGAF.
West - the M3 dyno plot you posted. I don’t think you’ll feel those dips. The torque is above 314 at that point and keeps rising. Noticing a difference of 15lbs/ft at 4k rpm in that rocket of a car… I don’t think I’d ever detect that. Not to mention, you’re going to be so busy modulating the throttle in that bad boy on corner exit that the torque dip will be the last thing on your mind
As for the S4, stage 2 is good enough man. For road course duty, it’s limited by weight and how much tire you can throw under the car. If someone were to be serious about this platform, IMO, the way to go is build an S5. You can go more wild with power and brakes on that car simply because you can fit much more wheel/tire under there–at the same weight. The tires is going to be the limiting factor at that pace and weight. Not the tune, not the sc, not the whatever.
Doesn’t help that it’s 2wd though.
It’s going to be a different driving style. Go hard into the corner, get it to rotate, and modulate the gas on the way out. Any 2wd car at that power is going to be hairy. Heck, go watch some vids of Jspazz on mosport in his NSX. He’s dancing with the steering wheel and throttle in that torqueless wonder. That’s the fun of 2wd
Saki is right - the B8 is never going to feel like that. Boost is always on and is much more linear that any turbo car. The 6 by default has good low end torque to begin with. Throwing the 1740 on an S4 on the road course is going to have other issues as well. The intercooler problem!
Look at a lot of fantastic big SC oem solutions: ZL1, GT500 etc. They all heat soak on track despite the multitude of coolers they have. They make big power. But to your point - for how long? The dyno here is less relevant than actual road course development–which of course, they haven’t done any. Also IMO power isn’t something this car is needing. With an insane setup like the double pulley solution, you’re really up there in power and speed.
I will buy that $9k blower and let 034 tune it just to prove you wrong. Hell, I’ll fly you to Sacramento and let you run the 1/4 because the whole Internet forum community knows I have no talent. Only learned repeatition of monotonous laps.