Lets see, where to start...today was a pretty damn epic day. I honestly don't think I've been this excited about car stuff in a LONG time.
Quick back story:
Ever since I got GheyrodX tuned back in July I haven't been real happy with it. It drove really well, perfectly smooth, etc., but it was really down on power (especially torque) compared to where it "should" be. What really made that apparent and when I realized I needed to do something is at the NTEC dyno-day last month; my car was getting owned by even basic stock intake/stock catback X's. AFR's were spot on, it took a little timing but not much, and I was just sick of dicking with it.
Last weekend we got the MAP FMIC installed, but today was the big day. First I started it off by installing a Grimspeed 3-port BCS then limped it to Cobb Tuning staying out of boost the best I could.
Today's plan:
1. Completely retune the car with an Accessport
2. Install MAP o2 eliminator downpipe
3. Retune again for hard back-to-back data on the downpipe
Woot! I'm shocked the 3-port and AP made such a difference. The o2 downpipe is definitely worth it on any setup, super nice to see a before/after on the stock turbo. The piece is so nice it'd be hard for it *not* to make power over the stock question-mark o2 housing!
Wonder where this thing would be at DB now, its gotta be over 300whp and 320wtq. Fantastic numbers for simple bolt-on parts! Finally teh gheyrodX will be able to hold its own on the streets of dall-ass?
Congrats!
__________________
Quote:
Originally Posted by Murlo26
I need to listen to Scheides more often i think :)
Quote:
Originally Posted by turbotalon1g
...I realized that I can't keep up my shit talking without anything to back it up.
Quote:
Originally Posted by JV
S2000: For those of us that know the Miata is the best car on the planet, but also want extra power and to not have to turn in our man cards.
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!
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.
2. Took a picture of Kracka taking a picture of the AP. I'm sure some of you guys got a text saying "WTF is this thing?" followed by a picture. Well, now you know the source of that text.
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.
(You can barely see the bung behind the bolt here)
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...
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!
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
Just to share, the AMS o2/dp addition on my car, required a a bunch of retuning as well to keep the boost control in check.
You should have seen the amount of black smoke that poured out of the car on the first pull with the o2/dp. The dyno room was in a haze and so was outside! I definitely wouldn't install one on a car without a retune.
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