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Kozmic Evo X MR 6870 Record

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Old Feb 17, 2018, 04:42 PM
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Evo X MR SST Precision 6870 952/635

Finally getting around to posting my car up. SAE 933/622 Standard 952/635 Dyno Jet.
Kozmic built 2.2L Manley internals
Kelford 214-C
Precision 6870 Turbo
ETS T4 Twin Scroll Turbo Kit
ID 2000s
Custom Dodson/Kozmic 14 plate Clutch Pakc
Open Source Tune
E85-Actual was roughly 76%



Attached Thumbnails Kozmic Evo X MR 6870 Record-record-952.jpg   Kozmic Evo X MR 6870 Record-dyno-graph-933.png  

Last edited by PDCC_EVO; Apr 28, 2018 at 02:13 PM.
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Old Feb 18, 2018, 05:25 AM
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That is huge amount of power for an X (or any car for that matter) to put down. That it is going through the SST is amazing. My hat is off to you and everyone involved in the build.

Do you care to share what it took to get the SST to cope with that amount of power?
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Old Feb 18, 2018, 10:11 AM
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Originally Posted by Cannonballer View Post
That is huge amount of power for an X (or any car for that matter) to put down. That it is going through the SST is amazing. My hat is off to you and everyone involved in the build.

Do you care to share what it took to get the SST to cope with that amount of power?
Thanks, it has a prototype Dodson Sportsman/Kozmic 14 plate clutch pack and a conservative tune keeping the RPMs kinda low. Hard to believe with the power it already has but we still have a few PSI to play with and a good bit more power it can make.
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Old Feb 19, 2018, 08:50 AM
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This is so awesome!

- Robert
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Evo 8/9/X Intercoolers, Intakes, Piping Kits, Exhaust Systems, Manifolds, Downpipes, Test Pipes and Turbo Kits
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Old Feb 20, 2018, 10:20 PM
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how long before you let it rip to 8800? what are 6870 and what did the boost curve look like?
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Old Feb 21, 2018, 08:30 AM
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Originally Posted by BEWST View Post
how long before you let it rip to 8800? what are 6870 and what did the boost curve look like?


Rev limit is set 8600 but the way its tuned currently its optimal shift point is between 7-7500rpm. After some strengthening upgrades we will change it up and rev it out quite a bit more. Not sure on the boost curve. I don't have it on any of the graphs I have and we didn't look at it at the shop while I was there.
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Old Feb 22, 2018, 05:33 AM
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Originally Posted by PDCC_EVO View Post
Rev limit is set 8600 but the way its tuned currently its optimal shift point is between 7-7500rpm. After some strengthening upgrades we will change it up and rev it out quite a bit more. Not sure on the boost curve. I don't have it on any of the graphs I have and we didn't look at it at the shop while I was there.
i meant to ask what AR the 6870 is.
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Old Feb 22, 2018, 06:51 AM
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Originally Posted by bewst View Post
i meant to ask what ar the 6870 is.


1.15
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Old Feb 22, 2018, 12:19 PM
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Originally Posted by PDCC_EVO View Post
1.15
Thats good and early power from a 6870. What compression ratio?
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Old Feb 23, 2018, 09:19 AM
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Great #s!

what made you guys go with a 2.2 compared to a 2.0?

was fitment if the 6870 any issue?

any reason as to why you chose it over the 9180 EFR?
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Old Feb 24, 2018, 08:01 AM
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Originally Posted by jake33 View Post
Great #s!

what made you guys go with a 2.2 compared to a 2.0?

was fitment if the 6870 any issue?

any reason as to why you chose it over the 9180 EFR?
I think the PTE6766 is more comparible to the EFR9180 at around 94 lbs/min flow. I know the PTE6870 G2 is closer to 110 lbs/min and bigger numbers especially for a drag racing or 1/2 mile & 1 mile event scenario.
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Old Feb 28, 2018, 02:52 AM
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Wow. That's all.
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Old Mar 2, 2018, 06:24 AM
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Originally Posted by BEWST View Post
Thats good and early power from a 6870. What compression ratio?
I am not sure on the compression as the engine was built by the previous owner and the invoice is just listed as a stage package.

Originally Posted by jake33 View Post
Great #s!

what made you guys go with a 2.2 compared to a 2.0? I am not sure on the compression or why he went with a 2.2 as the engine was built by the previous owner and the invoice is just listed as a stage package. The car was originally built for autocross

was fitment if the 6870 any issue? There were no fitment issues but its very close to the cam sensor shield.

any reason as to why you chose it over the 9180 EFR?
As far as EFR vs PTE goes, I nor Kozmic are a fan of the BW turbos.
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Old Mar 2, 2018, 10:18 AM
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I see. Why the 1.15 AR and the not the V-band .96?
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Old Mar 2, 2018, 11:41 AM
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Originally Posted by jake33 View Post
I see. Why the 1.15 AR and the not the V-band .96?
likely because he is TS anyway, and thats about 20% difference in ar, so it balances out
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