(I'm still laughing at the guy that said he felt like the stage 1 map made his car "pull more." No sir you aren't crazy, yes sir the 650 dollar mod you bought has a purpose beyond making your throttle more linear.)
Anyone else notice that the difference between the stage 1 maps for 6 speed MT and CVT? Less boost by 1 psi and MUCH better HP/TQ increases? I have the map notes side by side right now and it shows stage 1 with the CVT performs equal to stage 1 on MT WITH Turbo back exhaust.
I'm just guessing, but maybe it has something to do with the fixed 50/50 torque split on the manual versus the 45/55 VTD (variable torque distribution) system on the CVT?
Here is the first response from COBB, very interesting:
Hello Leif,
Thank you for contacting COBB support!
You are correct, there is a considerable difference in performance between the 6-speed and CVT versions of the 2015 WRX. This is something that we noticed when performing the stock baseline runs for the cars, there was more than 30hp/30tq difference between the two.
Initially it was thought that this was possibly due to drivetrain loss from the CVT, which is something that is not out of the ordinary when comparing manual and automatic variants of the same platform. After digging into the cars a little more Lance discovered that the castings on the cylinder heads are actually different between the 6-speed and CVT. At this point we have not torn down the engines to see exactly what changes were made, but it does appear that the CVT and 6-speed come with slightly different versions of the FA!
We are still not certain whether the transmission or possible differences in engine construction are to blame for the lower yields of the CVT, but more information is sure to come as we learn more about this new platform!
Please let me know if you have any additional questions!
The dyno at RT tuning measured my baseline at 260..
About two weeks ago, another 2015 WRX got its baseline measured and it was 240!
Below is the dyno. It is comparing Baseline, COBB OTS Stage 1 and Protune. As you can see, there is no gains. Car feels almost identical, especially on the low end.
Here is the other 2015 WRX baseline and protune. Same Dyno. Same Location.
Im driving a 2014 subaru wrx... I'm looking for a good way to protect the hood/front end. Have not had any luck with bug deflectors, don't like the way the clear bras look and I'm not sure about vinyl wrap. I like the idea of a bra do to the fact that its removable....but cannot find one. Thoughts and suggestions?
I have the clear bra.
It was installed by the dealer when my car was new.
I highly recomend it.
They make a huge difference in maintaining the pair job.
On my Moms Impreza I added the OEM front deflector, it also works well.
I believe these models are sensitive to air flow..thats why I relocated the front plate. Also, I believe grit gets in b ack of the bra eventually. I apply a good quality wax monthly to front and hood and so far, so good. If you drive it, it will never be showroom new again. Enjoy.
2015 ltd wrb 6 mt sts etc etc
I believe these models are sensitive to air flow..thats why I relocated the front plate. Also, I believe grit gets in b ack of the bra eventually. I apply a good quality wax monthly to front and hood and so far, so good. If you drive it, it will never be showroom new again. Enjoy.
2015 ltd wrb 6 mt sts etc etc
Ya in general it's gonna be my daily driver and going to try my best to keep it stock but already ordered some parts. Tomei I heard was good it's Titanium so won't rust
Trying to search and see if anyone on this forum has put wheels spacers on their 2015 STI yet. Wondering how they fit with the factory wheels 15mm/20mm/25mm. Thinking of 20mm all the way around