Where in Ohio do you live? you are not going to find a better shop then ZZP for the ecotecs.

List you will need if you choose a zfr. Can skip 3 bar maps, and clutch if you go k04, choose one or the other, none of the k04+ or k04r stuff.

LDK long block
zfr, also will want to do and intake with this
clutch
tob
3 bar maps
tune
Fluids
What ever else you want to add, such as charge pipes, intercooler,

 

And a tune of course.

 

And just because I am bored, your looking at about 6000-6500.00 without labor.

 

Why wouldn't you recommend the K04r miller?

 

Well, one is it appears to keep the same exhaust housing, no porting or anything, so its still going to fall short up top and get really hot. Now I have not worked with them at all but here is a little thing from there site below, would not want to wait weeks for a return. For the gain we have seen over the years with the k04+ and what not I don't think it would be worth it, also by time its done its a 1000 dollar difference between the k04r and the zfr which can make 500 whp with all the supporting mods down the road. Obviously my opinion lol

"Attention: All Turbobay Performance turbochargers are built to order to your exact specifications and should not be considered on the shelf ready to ship unless specifically noted on the work order. Build times vary by model of turbo and options of said turbocharger we cannot guarantee a delivery date or ETA."

 

Kmo43 got some really good results with it and seems like a nice upgrade for the price

 

Probably a reason he went to the 7163 tho lol

 

Lol he only went to 7163 because he had been waiting for it for over a year to come out

 

I want a huge turbo.

 

If the guys got the money he should just do the zfr. What kind of numbers did the k04r put down?

 

in the 400s? I don't member?

 

Hey! Well I took it a bit further than anticipated. I'm 60 miles east of Columbus by the way, I was just going to have it hauled up to ZZP and have them entirely build everything. I think I'm going to end up with:

LDK long block with ZFR 6758
South Bend stage 4 clutch
Stage two cams w/ springs
Intercooler w/ upper and lower charge
Radiator
Downpipe
3" Catback exhaust
High flow fuel pump
Fidanza Flywheel

Waiting to hear back from them for this quote. They're going to break in the LDK, dyno, and tune it.

 

He never dynoed but it should hit 400. And yeah he's going to be at zzp either way and has the money might as well get the zfr

 

zfr ftw

 

****.

 

I dont think he was flowing that much. Its right around the KO4+ sitting around 360whp on pump. The KO4+/R does not pull up top anywhere near what a ZFR does

I do agree with cmiller though, if you're going to upgrade the turbo get a ZFR even at 21-22psi you're over 360whp and a lot less heat being generated. Since it sounds like the OP is going to get everything installed at zzp have them tune in on their dyno with a nice boost ramp to 22-24psi and you'll be happy and safe.

 

i didnt dyno from k04 to k04R but it made at least 30 more horsepower, not having access to E85 or even E10 fuel i quickly out grew the power it could make, i went 7163 and haven't looked back since

 

38/min for the ko4r i think he said it has more in it but the fuel wasnt good enough to it push harder or somthing if i remember right. He posted a chart in that big thread. Its cheap then a k04+ and if u dont want over 400 it be a good choice for more pull and power.

 

The K04R seems like a good little gain for the price, but it's still very unproven. A bunch of people have said they were going to get dyno results with it and they never really came through. Even the guy over at Turbo Bay said he'd have dyno results and flaked out.

If you have the money go with what's proven, the ZFR. Just make sure to get a nice boost ramp to preserve your trans.

 

i think its a great option for a turbo, the cobalt community as a whole are cheap asses that think everything for our cars is expensive, alot of people have a hard time dropping $2000 on a zfr even though its worth every penny. k04r is a cheap option that works great especially if your stock k04 is shot. if i were the OP i would be looking at installing a 6758 with a new ldk and doing it right the first time even if he doesn't use it to its full potential

 

Maxed out on the wastegate control, and generating a lot of heat. The ZFR is a better route if the OP is going to drop some cash on cams and an install

 

Not sure I'll be using it to it's full anytime soon, haha. I didnt get rods or pistons, so I'll be a bit under 400 I guess? That's what I've read is safe for stock rods. But that's exactly what I went with, LDK w/ 6758 +cams and springs. And I figured while it's at ZZP, I may as well do everything that I've been wanting to do. They seem to know what they're doing.


From what I've understood I just need stage 1 sensors for higher boost pressure to push 375ish. (and a clutch of course). What's a boost ramp? I'm guessing it has something to do with the tune? They're doing everything, I know NOTHING about tuning, haha.

 

The zfr is worth is no doubt depending on the power u want and u can always turn it up when ready. the k04r just seems "fun" more power not a bad price like said befor^^. The stage 1 sensors read boost above 22.5 the stockers dont and thats no good. The boost ramp makes the power smooth and saves your tranny from going boom.

 

One thing about the radiator, if your aint broke don't fix it, The bigger radiator doesn't cool any better then the stock one did, partly due to not lower the t stat temp, and to be honest I ran 2 degrees warmer on average then the stock one. Add some tranny mounts to the list.

 

Add good tires to that list as well