are there any tunes around for the mk8 that maintain the power curve in the sense that it doesn’t overdo all the boost below 4500 ? like sacrifice the headline torque and power, for a curve that does not encourage short shifting?
Maybe a hybrid turbo, but then tuned to lift peak power at 6000 and not to stuff max psi in as early as possible?
If you’re upgrading your turbo, go with an S280. It’ll give you the power curve you’re after. The boost levels stay fairly mild under 3000rpm (around 22 psi) and then steadily ramp up (to about 27 psi) as the revs climb, all the way to 7000rpm.
My E30 tune only pushes about 22.5 psi with the S280. Tuner says that’s all the fuel system can keep up with. I did ask for a conservative tune, but I don’t think you can do anything with 27 psi without aux fuel or updated injectors/hpfp. The flow rate is just much higher. Adam from Tuneplus compared 25 psi on the stock turbo to a fart in the wind compared to the S280 with 3x the volume when I asked why it was held there. lol. Waiting on a revision on 93 still.
All of that said, yes you want the S280. There’s a thread on the forum where people have dynos. Dizzy was part of it. The power comes on like 500 rpm later but doesn’t stop until redline. Doing the pulls for the tuning was a blast by itself, but the low boost at low rpm’s lets you keep it chill and get decent mileage if you want. You’ll probably want intercooler, radiator, upgraded wastegate etc. if you go that route.
Stock fuel can max out 93 octane potential which is 27ish psi on the s280.
Not sure what the max psi for an e tune the stock fuel system would do, but I’d think it would be higher than 22.5?
I have nostrums fuel kit and my s280 hits around 31psi on e40.
Yeah wastegate duty is near 50 so it’s not a matter of being able to go higher. Thinking about injectors at some point but I’ve spent a bunch recently and want to do struts and brake since I’ll need them anyway.
The S280 is actually for the Mk7, not the Mk8.