Kracka
11-14-2010, 07:36 AM
Such an epic post and you failed to mentioned that your good buddy Rmondoh took awesome pictures for you but most importantly, you didn't comment on the tune/ride on your ride back home!! EPIC FAIL! :p
Now for some random comments on things throughout the day:
1. This is for Scheides' comment above regarding the 3port and AP. Kracka thinks that the reason why the gains are so drastically different is because the 10's ECU just DOES NOT like MBCs. He told me that he fiddled with boost, timing, etc and he just couldn't make it any better.
3. As for MAP's o2/dp, there needs to be a slight tweak on it. The o2 bung needs to be moved to the original location. The place where it is now is not very good. Here's some pictures.
4. Now I fell asleep watching TV ~10pm and just woke up and found that this thread was posted (along with a text from Kracka). Having read and looked at the graphs and having the adrenaline high wear off so that I'm thinking more clearly now, I'm not sure if the o2/dp is worth it. Don't get me wrong, I love that it made gains and I was just as excited as Kracka to see the results, but we need ONE more test to see what the real difference is. Hear me out...
Discussing (well listening on my part) with Chris@Cobb about the o2/dp, Cobb says that the restriction is not the o2 housing but the downpipe portion itself. That is the reason why Cobb only makes the downpipe section and not the entire o2/dp. Looking at the gains between stock o2/dp vs MAP's o2/dp, I wonder how much is actually provided by the o2 eliminator and divorced design. The gains are small enough to where going from the stock downpipe diameter of 2.5" (or whatever it is) to a full 3" MAY BE the difference that provided the gains and not necessarily the o2 elim part. MAP's o2/dp does have a wider diameter downpipe as well and the whole thing really is a 3" pipe from turbo outlet to testpipe flange. However maybe the o2 housing bellmouth flows just as well given how it was designed. Just something to consider. Maybe Cobb DID do their research correctly. :) Thoughts on this?
Perhaps Chris@Cobb might be willing to do another super awesome deal to someone willing to lend their car for some testing. Hmm...
HA! Sorry man, Janelle was rushing me to come to bed so I whipped the above post out as quick as I could. I really do appreciate you taking all the pictures, your willingness to always discuss setups, and of course your impeccable choice in tacos!
Drive home impressions: WOW! The car is a whole new beast now, can't believe I've left this much on the table since July! The car runs awesome smooth, but it really kicks you in the pants now when the turbo gets going. It's reminding me more of the original Gheyrod :)
1. That's my theory at least. Cobb seems to agree. Calvin did a great job with the boost control via the Grimspeed though. My favorite part is at peak torque though, nearly identical boost and AFR, but +59 wtq!!! That is such an incredible gain it's insane!
3. Agreed. It is rubbing on the chassis at idle; very stupid placement that I will be talking with MAP about. There is no reason not to locate it with stock orientation at 12 o'clock. Other than that though, what an awesome piece! Perfect fitment and clearance everywhere else. Solid gains across the entire curve, torque and horsepower! I was quite surprised at how much tweaking the tune needed to compensate for the o2/downpipe.
4. I too am curious about this. My guess is we could talk Chris @ Cobb (Plano locations manager) into doing this test on your car. Their downpipe and a few quick tweaks to your tune and we'd have solid answers vs. stock and vs. my o2 elim dp. I'm all for any type of hard dyno data possible and would be very interested to see the results; might as well be on your car :D
Now for some random comments on things throughout the day:
1. This is for Scheides' comment above regarding the 3port and AP. Kracka thinks that the reason why the gains are so drastically different is because the 10's ECU just DOES NOT like MBCs. He told me that he fiddled with boost, timing, etc and he just couldn't make it any better.
3. As for MAP's o2/dp, there needs to be a slight tweak on it. The o2 bung needs to be moved to the original location. The place where it is now is not very good. Here's some pictures.
4. Now I fell asleep watching TV ~10pm and just woke up and found that this thread was posted (along with a text from Kracka). Having read and looked at the graphs and having the adrenaline high wear off so that I'm thinking more clearly now, I'm not sure if the o2/dp is worth it. Don't get me wrong, I love that it made gains and I was just as excited as Kracka to see the results, but we need ONE more test to see what the real difference is. Hear me out...
Discussing (well listening on my part) with Chris@Cobb about the o2/dp, Cobb says that the restriction is not the o2 housing but the downpipe portion itself. That is the reason why Cobb only makes the downpipe section and not the entire o2/dp. Looking at the gains between stock o2/dp vs MAP's o2/dp, I wonder how much is actually provided by the o2 eliminator and divorced design. The gains are small enough to where going from the stock downpipe diameter of 2.5" (or whatever it is) to a full 3" MAY BE the difference that provided the gains and not necessarily the o2 elim part. MAP's o2/dp does have a wider diameter downpipe as well and the whole thing really is a 3" pipe from turbo outlet to testpipe flange. However maybe the o2 housing bellmouth flows just as well given how it was designed. Just something to consider. Maybe Cobb DID do their research correctly. :) Thoughts on this?
Perhaps Chris@Cobb might be willing to do another super awesome deal to someone willing to lend their car for some testing. Hmm...
HA! Sorry man, Janelle was rushing me to come to bed so I whipped the above post out as quick as I could. I really do appreciate you taking all the pictures, your willingness to always discuss setups, and of course your impeccable choice in tacos!
Drive home impressions: WOW! The car is a whole new beast now, can't believe I've left this much on the table since July! The car runs awesome smooth, but it really kicks you in the pants now when the turbo gets going. It's reminding me more of the original Gheyrod :)
1. That's my theory at least. Cobb seems to agree. Calvin did a great job with the boost control via the Grimspeed though. My favorite part is at peak torque though, nearly identical boost and AFR, but +59 wtq!!! That is such an incredible gain it's insane!
3. Agreed. It is rubbing on the chassis at idle; very stupid placement that I will be talking with MAP about. There is no reason not to locate it with stock orientation at 12 o'clock. Other than that though, what an awesome piece! Perfect fitment and clearance everywhere else. Solid gains across the entire curve, torque and horsepower! I was quite surprised at how much tweaking the tune needed to compensate for the o2/downpipe.
4. I too am curious about this. My guess is we could talk Chris @ Cobb (Plano locations manager) into doing this test on your car. Their downpipe and a few quick tweaks to your tune and we'd have solid answers vs. stock and vs. my o2 elim dp. I'm all for any type of hard dyno data possible and would be very interested to see the results; might as well be on your car :D