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Registered
Join Date: Dec 2001
Location: MA USA
Posts: 2,938
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EFI logging data
I did some logging so I could do some tuning.
Ambient temps are around 80degs F. I did a WOT roll on from 2700rpm to 4500rpm in 4th gear. It took 5.7 seconds to do that. My air temp went from 80 degs to 84. I did a blast from 5 mph to about 100mph. It took about 10seconds (I didn't time that one). My air temp rose 10 degs.
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Dean 911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno, |
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07-15-2007, 04:32 PM
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Crotchety Old Bastard
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Sounds like you've got a pretty good intercooler.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds '78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8 |
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07-15-2007, 06:25 PM
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Registered
Join Date: Jul 2005
Location: Reno, NV
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Quote:
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"Todd" 98 Tahoe ,2007 Saturn Vue 86 930 black and stock, 80 930 blue tracdog 91 Spec Miata (yeah I race a chick car) "life"ll kill ya" Warren Zevon |
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07-15-2007, 06:49 PM
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Registered
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I dug around my latest log file and found a 6 second blast starting at 3700 in second I think (I don't have mph or gear) up to 6700 then up to 5000 in third (about 50 to 100 mph). The inlet temp went from 94 to 110, then in about 6 more seconds off throttle it was back to 95. This is with an ambient temp of about 87. The sensor is a fast response Bosch.
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2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
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07-16-2007, 02:56 PM
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Wo ist die Rennstrecke?
Join Date: Mar 2004
Location: St Johns, FL
Posts: 1,210
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My latest log shows 5.12 sec, 2750 rpm up to 6250 (most likely 2nd gear), 8 degrees increase, 6 seconds to bring it back down to starting temp. Its a Bell IC and I also use the Bosch sensor. Interesting info - thanks.
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07-16-2007, 05:27 PM
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Registered
Join Date: Dec 2001
Location: MA USA
Posts: 2,938
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I didn't notice how long it takes for my IAT to return to before boost temp. It seems like it takes longer than 6 sec. though. Your temps return real fast. I will have to note my return temps next time.
I am having a lot of fun logging and seeing all the paramaters of how a motor runs.
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Dean 911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno, |
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07-16-2007, 06:01 PM
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78 Porsche 911SC 3.0L, 3.3Turbo soon. 
1979 Porsche 930 3.4
