2.0L LNF Performance Tech 260hp and 260 lb-ft of torque Turbocharged tuner version.

FTW-k04R vs ZFR In need of turbo swap!!

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Old 12-10-2015, 03:18 AM
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Pretty sure u can run any aftermarket intake. Possibly even the stock one. According to other members it will hold boost past 6800. Idr all the details but I haven't heard anyone say it was a bad upgrade.
Old 12-10-2015, 03:28 AM
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Originally Posted by Sl0wbaltSS
Alrighty guys, i'm interested in a k04r and I got some questions that i'm too lazy to go through 72 pages of this thread to do.

What's the biggest wheel there is? What wheel looks like the stock compressor housing? What intake will I need for the new wheel? How much is it with a k04 I send in? And can it hold 30 psi?
Read the posts by me and tmatt for the first 2 or 3 pages
Old 12-10-2015, 06:04 AM
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Originally Posted by Sl0wbaltSS
Alrighty guys, i'm interested in a k04r and I got some questions that i'm too lazy to go through 72 pages of this thread to do. What's the biggest wheel there is? What wheel looks like the stock compressor housing? What intake will I need for the new wheel? How much is it with a k04 I send in? And can it hold 30 psi?
The r is the biggest wheel you can get into the stock housing at this point. You can run the same intake you run now. I believe it's around $600 with the high boost can, sadly he had them on sale during Black Friday, for $150 off. (I got mine ordered then). I can't say it will hold 30, because I don't have one on but others can tell you. I am not looking to run over 27, but will expect to hold that to 6,700. It's not a zfr, but should be capable of 385-390 whp measured on dynojet on e47, probably not much more. I've heard 30 isn't good for ring lands if you push it a lot.
The more expensive k04+, which is a little smaller is capable of 370-380 on e47, but it's made by precision and sold by pwerks.
Old 12-10-2015, 08:53 AM
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Originally Posted by Sl0wbaltSS
Alrighty guys, i'm interested in a k04r and I got some questions that i'm too lazy to go through 72 pages of this thread to do.

What's the biggest wheel there is? What wheel looks like the stock compressor housing? What intake will I need for the new wheel? How much is it with a k04 I send in? And can it hold 30 psi?


(FTW-K04R) Chevrolet Cobalt SS/ HHR/ Solsctice | Turbobay Performance.LLC

That's the page so you can get a price
Old 12-10-2015, 08:55 AM
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Usually how long does it take for the turbo to be ready I've seen up to 3 months, don't want to wait that long tho lol
Old 12-10-2015, 05:15 PM
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Originally Posted by 63 Nova SS
The r is the biggest wheel you can get into the stock housing at this point. You can run the same intake you run now. I believe it's around $600 with the high boost can, sadly he had them on sale during Black Friday, for $150 off. (I got mine ordered then). I can't say it will hold 30, because I don't have one on but others can tell you. I am not looking to run over 27, but will expect to hold that to 6,700. It's not a zfr, but should be capable of 385-390 whp measured on dynojet on e47, probably not much more. I've heard 30 isn't good for ring lands if you push it a lot.
The more expensive k04+, which is a little smaller is capable of 370-380 on e47, but it's made by precision and sold by pwerks.
I've held 30 but do not recommend it i would run 26psi 28 max.
Old 12-10-2015, 11:33 PM
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Originally Posted by KMO43
I've tuned quite a few k04r on e47 and have had no issues with fuelling as well as the 6758zfr. But on full e85 and even the cam lobe its not enough fuel on spool. The problem is how fast the R spools the fuel system needs RPM to keep up with the fuel demand.
It's very possible that I was running more than 50% E simply due to the fact that I've never tested the station. However, once again, far too many variables to state simply that ALL cars will be able to run E47 with this turbo.

This is what I experienced. To some, it might not be a big deal or an issue but I literally felt the car miss and pop. I'd caution anyone with the R and getting too greedy while running ethanol. These runs, ambient temps were in the low 50's. You can clearly see as the rail pressure drops, STFTs drift positive (Inj DC increasing to try and help). No bueno. As I already stated, I was able to work around it and keep pressure around 1900 where before it was dropping into the 1500s but the car feels and actually is much faster by dropping the ethanol content.

As a bonus, you get to see how rock steady the boost is

3rd gear


4th gear
Attached Thumbnails 3rd-gear.png   4th-gear.png  
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Old 12-11-2015, 03:41 AM
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Here's a log of a ZFR on E47 fuel pressure is money

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Old 12-11-2015, 07:08 PM
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This is great info guys. Thanks for posting the logs. T-Man, do you have any fueling mods?
Old 12-11-2015, 07:32 PM
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Originally Posted by LNFwagonSS
This is great info guys. Thanks for posting the logs. T-Man, do you have any fueling mods?
No fueling mods. No desire to push it that far/hard. I'm still worried about BFing 3rd gear
Old 12-11-2015, 09:59 PM
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Originally Posted by LNFwagonSS
This is great info guys. Thanks for posting the logs. T-Man, do you have any fueling mods?
Anytime! I dont have the R anymore but pushed mine really hard and still tune many today
Old 12-11-2015, 10:03 PM
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He will be tuning mine ^
Old 12-11-2015, 10:17 PM
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Originally Posted by Snail_SS
He will be tuning mine ^
Thanks I'm looking forward to it Eddy!

I met with all the locals I've tuned over the last couple of weeks for winter updates and it looks like we're gonna have a fun summer! I laugh when guys tell me they are coming for me! I love the challenge
Old 12-11-2015, 10:19 PM
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Lol would be nice to get a run against you but damn your far haha
Old 12-11-2015, 10:33 PM
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Originally Posted by Snail_SS
Lol would be nice to get a run against you but damn your far haha
Well Jon is trying to convince me to go visit Taylor in Georgia this summer. But that may be a year away trip for me. I am thinking of going to Ohio to visit some guys I've tuned
Old 12-12-2015, 10:46 AM
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Ahhh nice Ohio is still kinda far tho lol
Old 12-12-2015, 06:07 PM
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Originally Posted by Snail_SS
Ahhh nice Ohio is still kinda far tho lol
Ya its there or cali
Old 12-12-2015, 06:14 PM
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Just come to TX
Old 12-12-2015, 06:16 PM
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Originally Posted by Snail_SS
Just come to TX
So very very far
Old 12-12-2015, 06:17 PM
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Lol cali is farther then you can witness a k04r brake 400
Old 12-12-2015, 07:29 PM
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Originally Posted by Snail_SS
Lol cali is farther then you can witness a k04r brake 400
I'm tuning a local here with R he just bought stg 1 cams ported head pistons and rods. He has meth and I'm gonna give him some E to see what we can get!!
Old 12-12-2015, 07:40 PM
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Originally Posted by KMO43
I'm tuning a local here with R he just bought stg 1 cams ported head pistons and rods. He has meth and I'm gonna give him some E to see what we can get!!
Sounds like an awesome DD.
Old 12-12-2015, 07:42 PM
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I can visit Derek, Sanchez and Mason in Utah its only a 12hour drive

Last edited by KMO43; 12-12-2015 at 07:49 PM.
Old 12-12-2015, 07:43 PM
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Originally Posted by double clutch
Sounds like an awesome DD.
Oh ya!! Gonna be sickonce done I don't know when he plans on having it done but I'll get him to line up vs me
Old 12-12-2015, 09:10 PM
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Originally Posted by KMO43
Oh ya!! Gonna be sickonce done I don't know when he plans on having it done but I'll get him to line up vs me
That won't even be a fair race


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