Corksport turbo review

[JgamB]

Originally Posted by biggman026 Looks like you have the opposite problem than I have at the track. You have trouble hooking the launch? Last time I went (on my E85 tune) I ran a 13.05 @ 110 - no trouble hooking up with awd, but my trap speed sucks (no track prep, full weight, Potenza S-04 tires)

2nd gear was killing me because no VHT on the track - I hook just as well on the road. But I'm trying to stay on topic of comparing the turbos lol, don't get me rambling about my drag strip fails.

[MSP6]

Originally Posted by JgamB Better gas than the 92oct mixed with the Eth would help. I run a bit more timing on 3/9 with 93oct and it frees up some IDC. I also don't knock, and those little knock hits in the upper RPM are causing the AFRs to fatten up to 11.4 and IDCs to exceed 100%.

A 4 gallon mix of E and 92 is still like 110 octane give or take. I'd imagine any knock he's seeing are false/noise.

[RJTSi]

Originally Posted by MSP6 A 4 gallon mix of E and 92 is still like 110 octane give or take. I'd imagine any knock he's seeing are false/noise.

Most likely is false/noise but the knock sensor doesn't care. It'll still pull timing and dump fuel

[MSP6]

Originally Posted by RJTSi Most likely is false/noise but the knock sensor doesn't care. It'll still pull timing and dump fuel

Yeah but knock of .35 and AFR's dropping from 11.6 to 11.4 isn't going to make all that much of a difference. Plus his power had already peaked and leveled of by 6250 when he starts reading knock anyway.

Crank those AFR's to 11.8-12.0 get some IDC headroom and let'er rip.

[JgamB]

Full E85 is ~105 octane AFAIK, and when diluted with 93oct on my mix (25%) you arrive at ~96 RON. You can still knock, and you can also see in the log where the IDCs moved a couple % immediately in response. When I get what I consider mechanical knock, it's usually a lift throttle situation and >1.0

[MSP6]

E85 in a direct injection engine is 160 oct...or 140 octane...meth might be 160.

[JgamB]

Originally Posted by MSP6 E85 in a direct injection engine is 160 oct...or 140 octane...meth might be 160.

Please cite your source. I'm all about learning new things.

[MSP6]

www.mazdaspeedforum.org/forum

plus http://mitei.mit.edu/system/files/2008-01-rp.pdf

[JgamB]

Originally Posted by MSP6 www.mazdaspeedforum.org/forum plus http://mitei.mit.edu/system/files/2008-01-rp.pdf

I was already reading that as you linked it, thanks!

I don't take those numbers at face value at all though - they used 100% Ethanol and derived artificial "effective octane" ratings because the DI system is already better at quenching than PI. It's like claiming 93oct gasoline is 130 octane in our motor due to the efficient atomization - this behavior is already compensated for and tuned for to obtain greater power, so if this theory held correct, 93 oct couldn't knock either.

The fuel in my tank isn't ~160 octane even though it might behave as such when atomized, and even so if I put too little Eth in, I still get knock.

And in the "how is this relevant to the turbo" conversation, it's because I think he got legit knock and lost IDC to it.

[MSP6]

The effective atomization is relevant because it is alcohol which cools the combustion chamber in a way that gasoline simply cannot, whether its 91, 93 etc. It is not 160 in your tank but once that shits injected its a different story. Also, even with 15% 87oct mixed in...E85 from the pump would still be 149.xxx oct so moot point. But this isn't the thread for that so end rant. Back to puppy power reviewing.

[Easter Bunny]

Lol at all of the S3 owners hoping this turbo doesn't out perform.

[Justin@Freektune]

At 23-24psi on a small e85 mix and 91 the cars will definitely knock. So i would take it as being real and not false.

Going to a leaner afr be it 11.8 or 12.0 isn't going to gain much headroom for idc or pick up any noticeable power so that is the afr I would have stuck with as well. Especially when Cali 91 is involved.

Unless it's a happy Dyno. You aren't going to make 400whp on an ethanol mix. Just isn't going to happen without supplemental fuel. Heck I have gtx3076 cars maxed out at 360hp with a 3 gallon mix.

If anyone is looking for the absolute max this turbo can make. Either meth or 5th port is going to be needed to shed light on those results. This turbo will and has shown that it flows enough to max the stock fuel system.


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[MSP6]

Huh, could've swore I read on here that a 3-4 gallon mix typically brings people past the knock threshold. Proved wrong I suppose @JgamB; I stand corrected

[JgamB]

Originally Posted by MSP6 Huh, could've swore I read on here that a 3-4 gallon mix typically brings people past the knock threshold. Proved wrong I suppose @JgamB; I stand corrected

You aren't wrong per se, it's just how you look at it. If the fuel is producing an "effective" 140 octane, he needed 145 octane in the combustion chamber to not pre-detonate. (pulling numbers from my ass, but the gist is there.)

@Easter Bunny; I'm not rooting for the S3 to make more power - I want an S4!

[Mazd1222]

Ordering the corksport turbo I'm currently running 18.5psi tuned 298whp 335tq will I be able to just drop this in or will I need to retune

[littleloogy]

Originally Posted by Mazd1222 Ordering the corksport turbo I'm currently running 18.5psi tuned 298whp 335tq will I be able to just drop this in or will I need to retune

You can drop this in and drive, but I do not recommend going WOT without adjusting your tune or permission from your tuner. I did because I don't care about my car, but I would never encourage anyone to do it.


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[Mazd1222]

Ok I just wanted to make sure because I used the bucker cheat sheet to tune on my car.
It runs great, I was going to do and e85 mix before doing the corksport turbo.

[Raider]

Well, Corksport has if documented in multiple places that tuning is required. I personally would get on board with a good etuner and go from there. Risking a vented block over $300 tune is my idea of a bad time.

Or bolt it in and redline all the gears. Not my car.

[Brandon@corksport]

Originally Posted by littleloogy You can drop this in and drive, but I do not recommend going WOT without adjusting your tune or permission from your tuner. I did because I don't care about my car, but I would never encourage anyone to do it. Sent from my iPhone 6

LOL More than likely you will need a re-tune! Even if you don't need one, you should want to get the most out of it regardless. Get a tune!

[Ferdball]

Originally Posted by hitANDrun21 update for you guys! E85 tune is done. made 362hp/360tq on the dynopak. @23.5 psi here is the graph and data log for your viewing pleasure.

60-100 = 4.96s

http://www.mazdaspeedforum.org/forum/foru...-times-126160/

We'll need another category for the new CS turbo.

[2feido]

Originally Posted by aromig CorkSport is too small of an operation to manufacture their own turbos. It is built to their specs by someone else, though it has not been confirmed by whom. @dale_gribble has done his research (hats off btw), and speculated it to be Tomioka.

Per Corksports website it's a "Mitsubishi TD05H-18G"

http://www.corksport.com/support/GEN...te%20Paper.pdf

[Vansquish]

Originally Posted by 2feido Per Corksports website it's a "Mitsubishi TD05H-18G" http://www.corksport.com/support/GEN...te%20Paper.pdf

This is already widely-known. Tomioka makes a lot of turbos using Mitsubishi parts.

[aromig]

Originally Posted by 2feido Per Corksports website it's a "Mitsubishi TD05H-18G" http://www.corksport.com/support/GEN...te%20Paper.pdf

THIS is your first post? Fuckin brownie noobs.

[Vansquish]

Originally Posted by aromig THIS is your first post? Fuckin brownie noobs.

There no call for that kind of harshness. He provided relevant, if old, material, and did so in the spirit of improving the discussion by adding factual information. As newb posts go, it wasn't terrible.

[Awal]

I'd have to agree that was a wee bit harsh, the dude was just trying to relay info from dale's "so about the CS turbo" thread into this one to clear up a misconception someone had about the turbo's manufacturing details.

I've seen soo many much worse 1st posts including possibly mine.. But yeah @2feido; dude make an intro thread at least, I assume you've read most of the stickies and the link provided in your welcome PM. If not get on it

[acousticdefbot]

Originally Posted by Vansquish There no call for that kind of harshness.

.......................................... ellipses. endless ellipses.

[AwAfrican]

So @hitANDrun21; when us the meth / 5th port happening?

[littleloogy]

Originally Posted by Vansquish There no call for that kind of harshness. He provided relevant, if old, material, and did so in the spirit of improving the discussion by adding factual information. As newb posts go, it wasn't terrible.

Agreed. Believe it or not, I actually learned something from his post.


Now @2feido; head on over to the new member section and introduce yourself to our community.


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[Voltwings]

Originally Posted by Ferdball 60-100 = 4.96s http://www.mazdaspeedforum.org/forum/foru...-times-126160/ We'll need another category for the new CS turbo.

I'm struggling to put as much stock into 60-100 as i used to. The amount of torque a car / person is willing to make will greatly influence those numbers. For example, we've got a K04 here turning a 4.7, but running 456 wtq lol ...
Built and Bolted... Stock k04. Possible record?

So obviously we can say the CS turbo has a better powerband to be able to turn 2/10s slower while using substantially less torque (making power up on the top end). Still, point being the whole picture needs to be considered. Not saying you werent doing that, but just making the point aware.

[RJTSi]

^^ Makes sense. I've turned a 5.08 in my ko4 corn fed speed3 (in the winter). I'm sitting at 5.4 currently with my unfinished tune on my speed6. However, I'd take the CS powerband over the k04 any day

[slow215]

Originally Posted by hitANDrun21 I live in san diego where its usually pretty warm, so bats are always somewhat high even with an upgraded tmic. I am running it in interrupt mode, and nishan told me today he runs me a little rich (i think that has to do with my shitty gas) I know its not the best log, I really only posted it to give you guys some more data because I know people are interested. id be more inclined to post the data after I get on the dynopak Wednesday because I know that will yield much better data for everyone. and itll be on e85 which I believe no one else is on e85 yet with this turbo if I am correct.

Hi hitANDrun21, I am from the SF area and am interested to know if your set up will pass smog here in CA. I don't like the idea of returning to stock just to get smog. Thanks.
Greg

[littleloogy]

Originally Posted by slow215 Hi hitANDrun21, I am from the SF area and am interested to know if your set up will pass smog here in CA. I don't like the idea of returning to stock just to get smog. Thanks. Greg

Again Greg, Check out out NATOR Northern California Thread. Ask question there, http://www.mazdaspeedforum.org/forum/foru...d.php?t=164838 we deal with smog all the time.


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[KennyG]

Finally got my meth kit working after finding out my JMF bunges were worthless. Running 1 D07 on my new Damond TB spacer. Ryan @ PD Tuning is kicking ass getting this CS turbo to safely crank out the timing and boost. So I figured I would VDYNO and see if I'm close to the 400hp mark. We still have more mapping so not done with Meth tune. My butt dyno says 380hp, I'm sure on a real dyno and correction it's close to 400. I'm also no expert tuner so feel free to tell me what looks good and bad.

[ryguy 3]

Originally Posted by KennyG Finally got my meth kit working after finding out my JMF bunges were worthless. Running 1 D07 on my new Damond TB spacer. Ryan @ PD Tuning is kicking ass getting this CS turbo to safely crank out the timing and boost. So I figured I would VDYNO and see if I'm close to the 400hp mark. We still have more mapping so not done with Meth tune. My butt dyno says 380hp, I'm sure on a real dyno and correction it's close to 400. I'm also no expert tuner so feel free to tell me what looks good and bad.

What Correction Factor are you using in VD? I think standard is 1.01 which would drop those numbers down a bit.

[MD1032]

Can you post the actual logs you used to generate that vdyno? I'm curious about what your CS can put out in the top end compared to my BNR.

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[KennyG]

VDYNO correction is 1.09. Here are the 2 logs I went by. I had over 100lb of medical equipment in back. AFR doesn't drop much but BAT's are great. Meth is well worth the price of safety as much as power. Gonna really help in the summer.

[JgamB]

Looks like ~375 to the tires just looking at the boost vs spark and what we've seen from other CS turbos. You could have some variance in there that accounts for more, but I'm guessing the road isn't as flat as it appears.

Still looks great and lots of fun!

[KennyG]

Originally Posted by JgamB Looks like ~375 to the tires just looking at the boost vs spark and what we've seen from other CS turbos. You could have some variance in there that accounts for more, but I'm guessing the road isn't as flat as it appears. Still looks great and lots of fun!

Thanks, I'm having a blast with this turbo. 375 to wheels seems right. That's about where I wanted to be. Road is bumpy as hell. After 6 months of driving really hard I can see how anything past 400 would definitely require motor build. Were close to being done, probably couple more MAPs and I good. I'll get some final logs. Appreciate the input.