FTW-k04R vs ZFR In need of turbo swap!!
03-15-2015, 09:29 AM
#1276
Senior Member
On 99.9% of all setups on LNFs even with E-85 or huge amounts of meth beyond 18-19* up top and 14* midrange is normally pointless. I have done up to 29* up top on cars with no change in 60-100 times or dyno numbers vs 18*. GDI cars are more efficient they do well with less fuel and less timing for maximum power.
03-16-2015, 02:06 PM
#1279
I wish 14* was our 91 octane timing here lol, our fuel is so shitty, on the k04 11-12* is about all you get out of the car up top on 24-25 psi. Even bumping to pump E30 took that same car on the same boost to 18* up top. Night and day difference. 30* would be great for the motor 
What do you think these are, stock turbo Subaru's and SRT4's?! lol
What do you think these are, stock turbo Subaru's and SRT4's?! lol
03-16-2015, 08:59 PM
#1281
Senior Member
03-18-2015, 12:13 PM
#1284
Senior Member
Waiting for what
My car likes it one day last year I was running 75% and was getting low so I threw some water in and it loved it ever since I've ran the 60%
My car likes it one day last year I was running 75% and was getting low so I threw some water in and it loved it ever since I've ran the 60%
03-18-2015, 02:54 PM
#1285
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I'm aiming for 400whp+ this year and I just need to buy a clutch and flywheel before buying the turbo upgrade. I was originally going to get the S20G but I'm having second doubts, what's the best bang for your buck that won't destroy my tranny? I was thinking about the S256 extended tip but I didn't know if I would need to buy a new downpipe/if I would need to run a wastegate with it.
03-18-2015, 03:20 PM
#1286
Senior Member
I'm aiming for 400whp+ this year and I just need to buy a clutch and flywheel before buying the turbo upgrade. I was originally going to get the S20G but I'm having second doubts, what's the best bang for your buck that won't destroy my tranny? I was thinking about the S256 extended tip but I didn't know if I would need to buy a new downpipe/if I would need to run a wastegate with it.
03-18-2015, 03:32 PM
#1287
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The hell with that, my biggest worry about both the 6758 and 7163 ZFR is them being known for eating trans. I'm assuming I would need to get 4.45 gears from Mongo asap after install
03-18-2015, 03:49 PM
#1289
But iirc the tune and clutch would be more responsible for destroying an F35 than the turbo...
Some guys are starting to come around and advocate using the GMPP clutch simply because it will slip and "save" your transmission over a clutch with too much bite grenading it...
@ "Future" (wow talk about a user name that's dated!) a local has a ZFR, K&N SRI, and the other common mods, and dynoed at over 400whp...
His car is pretty sedate, it was also tuned by a guy in our state who I have heard some concerning (to me) info on...
Considering what Kevin has been posting about this turbo, is almost reads like the ZFR has been made obsolete...
Last edited by soundjunky; 03-18-2015 at 03:55 PM.
03-18-2015, 03:54 PM
#1290
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Yeah I know haha made the username when I had a Cobalt LT hahaha
I know with the ZFR I would make over 400whp but I just wasn't sure if the s256et was a better bang for your buck or not since it's $800 cheaper than the 6758
I know with the ZFR I would make over 400whp but I just wasn't sure if the s256et was a better bang for your buck or not since it's $800 cheaper than the 6758
03-18-2015, 07:27 PM
#1291
Senior Member
Nice are you gonna run them on E?
No the ZFR is still way more turbo than the K04r but it's a really good bang for the buck that's for sure
Either put one of those boost ramp things on and you should be OK if you get the 7163 it'll spool a bit slower so that and a boost ramp should be OK
umm, Kevin, correct me if I'm wrong here;
But iirc the tune and clutch would be more responsible for destroying an F35 than the turbo...
Some guys are starting to come around and advocate using the GMPP clutch simply because it will slip and "save" your transmission over a clutch with too much bite grenading it...
@ "Future" (wow talk about a user name that's dated!) a local has a ZFR, K&N SRI, and the other common mods, and dynoed at over 400whp...
His car is pretty sedate, it was also tuned by a guy in our state who I have heard some concerning (to me) info on...
Considering what Kevin has been posting about this turbo, is almost reads like the ZFR has been made obsolete...
But iirc the tune and clutch would be more responsible for destroying an F35 than the turbo...
Some guys are starting to come around and advocate using the GMPP clutch simply because it will slip and "save" your transmission over a clutch with too much bite grenading it...
@ "Future" (wow talk about a user name that's dated!) a local has a ZFR, K&N SRI, and the other common mods, and dynoed at over 400whp...
His car is pretty sedate, it was also tuned by a guy in our state who I have heard some concerning (to me) info on...
Considering what Kevin has been posting about this turbo, is almost reads like the ZFR has been made obsolete...
Either put one of those boost ramp things on and you should be OK if you get the 7163 it'll spool a bit slower so that and a boost ramp should be OK
03-19-2015, 12:03 PM
#1293
Yep, I run E30 and the other car runs 1:1
Aside from convenience, there is literally no difference between my car and the other in terms of what the car will safely take with these ethanol percentages. My car is running 21* up top and is fed in rather quickly while running 21lbs (really small spike to 22 briefly).
I'm hoping that I won't need to push the K04R much past 24-25lbs for what I'm after.
Aside from convenience, there is literally no difference between my car and the other in terms of what the car will safely take with these ethanol percentages. My car is running 21* up top and is fed in rather quickly while running 21lbs (really small spike to 22 briefly).
I'm hoping that I won't need to push the K04R much past 24-25lbs for what I'm after.
03-19-2015, 12:20 PM
#1294
Senior Member
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Yep, I run E30 and the other car runs 1:1
Aside from convenience, there is literally no difference between my car and the other in terms of what the car will safely take with these ethanol percentages. My car is running 21* up top and is fed in rather quickly while running 21lbs (really small spike to 22 briefly).
I'm hoping that I won't need to push the K04R much past 24-25lbs for what I'm after.
Aside from convenience, there is literally no difference between my car and the other in terms of what the car will safely take with these ethanol percentages. My car is running 21* up top and is fed in rather quickly while running 21lbs (really small spike to 22 briefly).
I'm hoping that I won't need to push the K04R much past 24-25lbs for what I'm after.
03-19-2015, 01:34 PM
#1296
Senior Member
Yep, I run E30 and the other car runs 1:1
Aside from convenience, there is literally no difference between my car and the other in terms of what the car will safely take with these ethanol percentages. My car is running 21* up top and is fed in rather quickly while running 21lbs (really small spike to 22 briefly).
I'm hoping that I won't need to push the K04R much past 24-25lbs for what I'm after.
Aside from convenience, there is literally no difference between my car and the other in terms of what the car will safely take with these ethanol percentages. My car is running 21* up top and is fed in rather quickly while running 21lbs (really small spike to 22 briefly).
I'm hoping that I won't need to push the K04R much past 24-25lbs for what I'm after.
03-19-2015, 02:13 PM
#1297
Senior Member
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I've read through the ethanol threads on hptuners, just couldnt remember the E30 injector adjustment. Just about threw some E85 in last night to get to E30, but I think I have a boost leak I need to fix...
