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Turbofrog
 
smurfbus's Avatar
 
Join Date: Aug 2009
Location: Europe
Posts: 1,411
342 miles and now I filled the tank

18.23 mpg ~ 12.5 L/100km. Not bad with E85 and tuning with autotune and VEAL so lots of WOT runs too. My earlier good tune went to trash can as I found a torn vacuum line but now its good again and I even have a normal idle vacuum at 37kpa now.

Still no idle VE or idle valve, only hand throttle.
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79 930: HX40S#16, MS3pro+ID1000+044+E85, Ignition: 123/TUNE/MSD6A, True split BB, 2*turbosmart38
Old 09-10-2018, 10:25 AM
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Location: Honolulu, HI
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WTF! I barely get into the double digits.
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Bryan O.
77 930
08 Boxster
14 535i M Sport
Old 09-10-2018, 10:35 PM
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Turbofrog
 
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Join Date: Aug 2009
Location: Europe
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Lots of 40-50mph swinging backroads and since the engine pulls really good on fourth even on low revs I usually run in fourth if there are no hills or overtaking. 275/40-17 R888 at the back so no help there.
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79 930: HX40S#16, MS3pro+ID1000+044+E85, Ignition: 123/TUNE/MSD6A, True split BB, 2*turbosmart38
Old 09-11-2018, 03:52 AM
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Brando
 
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Join Date: May 2006
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Wow I need a professional tune.
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Turbo powa!
1977 911s. it's cool
Old 09-11-2018, 06:09 AM
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Chain fence eating turbo
 
Join Date: Dec 2008
Location: Austin, TX
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Best I got on E10 was 26 or 28. 18 with E85 is astounding! Good job!
Old 09-11-2018, 06:15 AM
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Brando
 
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26-28? With a flat six turbo?
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Turbo powa!
1977 911s. it's cool
Old 09-11-2018, 06:33 AM
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Turbofrog
 
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Join Date: Aug 2009
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I think its doable on steady 50 mph on E85 too but steady is not fun. I’ve dialed all vacuum areas to 14.5afr to see if 3d map has any odd spots so it can get better with 15.5 to 16 which runs fine too. Timing is up to 45 IIRC on light cruise.

Having one gauge for mpg is nice with ms3pro. Does not work on idle as it get its data from vss speed signal and injectors.

I think I have a broken head stud (leaks on cyl3 area)or its very loose. I hoped it was breather seal but it was clean.
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79 930: HX40S#16, MS3pro+ID1000+044+E85, Ignition: 123/TUNE/MSD6A, True split BB, 2*turbosmart38
Old 09-11-2018, 08:24 AM
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I would rather be driving
 
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EFI is great. Lean it out, increase timing to match and get better mileage.
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71 911T SWT - Sun and Fun Mobile
72 911T project car. "Minne" - A tangy version of tangerine
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Old 09-11-2018, 10:40 AM
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gas mileage with my MS3 Pro conversion is great... must be 20% better than what I was getting with the old system. Hard to drive conservatively though...
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87 930 GHL/Rarlyl8/Garretson/GT3582R/1 Bar/Wevo shift, mounts/Meth inj/LM-2/Custom Fuchs/Carrera intake manifold/Xtreme Carrera heads P&P/3.4/DR 993SS cams/ Mahl/Pauter/JE/Niresist/ARP/twin COP/8.25:1/KEP stage 2/twin tials/close 2,3,4th. MS3Pro Evo 500+ HP, BTSOMP Dyno
Old 09-11-2018, 10:59 AM
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Chain fence eating turbo
 
Join Date: Dec 2008
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Quote:
Originally Posted by quattrorunner View Post
26-28? With a flat six turbo?
Straight highway. 3.4 based on 3.2 at 7.5:1CR
Old 09-11-2018, 09:37 PM
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Turbofrog
 
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Join Date: Aug 2009
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This tank has already 415 miles in it. It must be almost done as first gear WOT got some odd taper and jikes the log showed low fuel pressure!!!!

Has anyone istalled a surgetank or what its called for these kind of situations?
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79 930: HX40S#16, MS3pro+ID1000+044+E85, Ignition: 123/TUNE/MSD6A, True split BB, 2*turbosmart38
Old Yesterday, 12:57 AM
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