Quote:
Originally Posted by Gforce
The PP on the 2017 has to be about the best option deal available on any car. You get a lot for not much money.
Sachs competes head to head with Bilstein in Europe and is fitted as OEM by more makers than Bilstein.
The torque dip hasn't gone away and can't be eliminated. It comes from the variable cam timing used by Subaru, developed for them by Porsche and Porsche engines have the same dip. The lower final drive fitted to the manual 2017 May mask the torque dip but it'll still be there. Even a Supercharger only masks the dip, gas flow is gas flow whether it gets sucked in or pumped in. Turbocharger maybe will overcome the torque dip because they boost differently from the air pump type Superchargers.
For example, here are the torque curves a Cosworth Eaton type supercharger gives you, compared to stock:
http://www.cosworth.com/media/452769...kage_Range.png
Edelbrock produces exactly the same pattern. Check out a Porsche Cayman flat six torque curve graph, looks identical.
Subaru clearly decided to build a more sophisticated version of the BRZ for 2017. The earlier cars were built primarily with driving excitement in mind. The new version is aimed at driving enjoyment, not quite the same thing. Depends how much you like oversteer. |
^^This is good stuff, GForce^^ It's been mentioned before that our cars have a kind of "VTEC effect", which the final drive accentuates, I think.
The tuner who did my STI for me (before I traded it for the PP BRZ) told me the BRZ torque dip can be reduced a bit by a tune on the oem parts but is ultimately a mechanical issue. He said the dip can largely be made irrelevant with ELH, exhaust and a tune- of course he recommended going right to E85 after the parts because he's a tuner
I can see myself pursuing that route next year, without flex fuel because of the MPG penalty. But I'm completely over inherently hot-running turbos and their complexity, also over the temptation to redesign perfectly good cars. I think my BRZ is actually a pretty great car, owned 3 months as a DD that's been to 2 track days with several more scheduled
