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01-01-2012, 09:53 PM | #23 |
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Man this kit looks serious. I've been waiting for HPF's Z4M turbo kit to be released, but this one just seems to look better, it's probably that twinscroll turbo manifold that's just a beauty!
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01-02-2012, 03:25 AM | #24 | |
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hey marcus!! glad to have you over here!!! BTW love that video..... thats the type of video that makes me make cake to watch!! pro-efi is the real deal imo...... i just love what it does!! This z4m is serious and im loving all the tuned z4m's coming out, its a perfect base to mod imo..... marcus, thanks for making this post and make sure you stick around ;-) love your m3 btw..... flex fuel makes me seriously consider pro-efi, but im not sure how it works with supercharged setups....
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Multi award winning Detailing | Wrap | PPF specialists UK based - www.topwrapz.com Last edited by Beedub; 01-02-2012 at 03:50 AM.. |
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01-02-2012, 07:29 AM | #25 |
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Wow..This is what I waiting for..Amazing
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Z4MC_Black Sapphire/Imola-_-DMS ECU ll H&S cat-back ll H&R coilovers ll CF Lip ll Lamin-X ll Matte black kidneys ll Afe drop in ll Afe intake elbow ll RPi scoop ll LeatherZ imola shift boot ll ZHP knob...
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01-02-2012, 10:29 AM | #26 | |
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Also, do you maybe have a ballpark price range for a setup like this? How much did your buddy dish out for a one-off build @ Lutz Performance? |
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01-02-2012, 11:09 AM | #27 | |
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I believe you would need new lines and filters if im not mistaken... |
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01-02-2012, 09:09 PM | #29 | |
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You'd see gains on a s/c setup with E85 but not as dramatic as a turbo being your s/c is belt driven and our turbos are exhaust driven. E85 is 40% more fuel, which means more exhaust volume, which means a faster spool.. its also capable on our S54's to make 900rwhp+ on just E85. So if you had a meth setup running E85 would be similar results as your meth setup, but 100% of the time, and with less safety/reliability issues. |
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01-02-2012, 09:12 PM | #30 |
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01-02-2012, 09:44 PM | #31 |
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01-02-2012, 10:35 PM | #32 |
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Drives: Imola Red Z4MC
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any chance of Lutz making this more than just a one-off and making it a production kit?
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01-02-2012, 10:46 PM | #33 |
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01-03-2012, 11:43 AM | #36 |
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On 91 octane with no modifiers for fuel.....most turbo systems add 50% HP if efficient.
So...330hp divided x2 = 165hp added to 330hp = 495hp. Thats a low boost estimate at best. Larger intercooler system + more boost equals more HP and so on........... |
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01-03-2012, 12:03 PM | #37 |
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I feel silly even saying this but some people aren't aware of what the difference between hp and rwhp is..
hp is rated at the crank rwhp is rated at the rear wheels (aka on a wheel driven dyno) Most say that a manual car loses about 10%-15% of its hp through the driveline. So a car like a Z4M which makes roughly 330hp at the crank or so would make around 290rwhp.. Most s/c kit companies (ess/etc) rate their kits at the crank. So I believe the VT-500 is rated for 500 at the crank, and likely makes about 425-450rwhp. Our goal would be (on E85, not pump) to make about 650rwhp with this setup, so roughly 750hp+ to the crank. The S54 on stock internals is good to high 700rwhp.. not a good idea.. and likely not to last to long, but its been done. 600-650rwhp on the stock internals has been proven to be very reliable, hence that being our goal. |
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01-03-2012, 04:19 PM | #40 | |
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Changing the final drive would probably net you better results in 1st and 2nd but you'd be sacraficing 3rd-6th.. the ultimate thing would be to find out a way to gear 1st and 2nd to be a bit longer.. especially 1st.. M cars have always had a notoriously low first gear.. which creates the impression that the car is quickier then it really is.. soon as you add F/I that 1st gear is absolutely worthless. |
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01-03-2012, 11:16 PM | #42 | |
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One thing for sure.....you'll want to find the gearing that allows to match the sweet spot where your choice of turbo breathes the hardest and lives there the longest for the most torque and drive-ability.....but I'd bet your already schooled on those points. |
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01-03-2012, 11:43 PM | #43 | |
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01-04-2012, 12:31 AM | #44 |
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You can always modulate your throttle inputs to alleviate traction issues, smoothness is key to driving fast
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