Quote:
Originally Posted by CSG Mike
Because at the end of the day, there is no replacement for displacement....
The wide, flat torque curves are actually manufacturers chasing emissions and MPG ratings, rather than "driveability", for the most part. I wouldn't call a EJ257 with a powerband of 4k-6k wide and flat  Or a 4G63 in an Evo. Or the M133 in the CLA45 AMG.
I do agree, big flat powerbands are nice for street driving, but I don't think that's why most people decided to purchase a FRS/BRZ.
The big difference in driveability is not that the Innovate makes more power down low, but that the Innovate's throttle tip in is ultra aggressive. If you do a 20-80 3rd gear (MT) pull in a Vortech vs Innovate car, the Innovate never pulls more than about 3-4 feet before the Vortech starts reeling in the Innovate car.
Likewise, if you do a 20-80 pull in a VQ35DE 350Z vs AP2 S2000, the 350Z doesn't actually ever get more than about 5 feet ahead, before the S2k wizzes by.
In both cases, the Innovate and 350z *feel* subjectively much more powerful at low RPMs.
In my case, I'm never in the 1500-2500RPM range unless I'm strictly cruising; downshifting to accelerate comes naturally to me, and a 3 gear downshift isn't out of the ordinary when I'm driving.
Why do you prefer to not downshift for a pass street driving? Inconvenience? An Auto (or twin cluch in some other platforms) would fix that...
Different strokes for different folks. |
This is why I swapped from innovate twin screw to turbokit (was also considering a centrifugal sc).
The max amount of power I could make on the twin screw was 230 whp dynojet on 91 oct even with the intercooler.
I also realized when I was driving spiritedly(or tracking) I was never in the low rpms. That is what you buy a FI kit for right? To enjoy driving spiritedly more?
Don't get me wrong, I was pretty happy and excited to have any kind of FI on the car at all. After a few months the novelty of the "low end torque" wore off completely and I was stuck with a kit that heat soaked and performed inadequately on the circuits we have out here.
One moment stands out to me where I was behind a stock BRZ coming onto the front straight and our acceleration down the front straight was almost identical... I wasn't datalogging but I am sure the ecu was pulling timing due to heat/knock. I expected to pass the BRZ at least by the end of the straight but couldn't. I never got to try it with e85 and in some ways I do wish I did. I probably would have enjoyed it more and maybe, just maybe I would have left it on the car.
Anyways, if you just like putting around town and you don't do much "sports" driving, then the twin screw is nice.