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#422 (permalink) |
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rock on, yeah rock on
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quick question. apparantly i may need to ditch the stock maf soon. from what i've heard, the map sensor option would be the easiest way to convert to being maf-less. what i'm worried about though is the "drifting tune". ie, a/f and tunes that will change and become potentially unsafe when weather changes, ie temperature change. is this an issue with the map sensor? has anyone experienced this? i'm looking for the easiest way to go maf-less and keep good driveability and reliability, both at wot and partial throttle, without the need to get retuned every so often. thanks.
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Dyno Collection Thread
1993 Dodge Stealth ES, White, April 2002 - April 2005, SOLD 1 of 53 1993 Dodge Stealth TT, Black, Since April 2004, 1 of 5 ever made more rarity info 2003 Subaru Forester 2.5X, Blue, Sept. 2005, Daily Driver with 165 HP of Fury! At least it's AWD. ![]() ![]() ![]() 305 awhp, 325 awtq(BPU minus full catback exhaust)Mods at that time 13.02@104.67 (9bs, dp, fipk, 15.5 psi, bov, no cats, streetmax clutch, 1.77 60', decent conditions, full weight (even spare tire/jack) 13.09@105.08 (1.80 60', same conditions as above) Beyond BPU: (meaning upgraded turbos/fuel/etc) before engine rebuild Mods at that time 12.38@113.00(20 psi, 110 octane, massive knock above 6k rpms) 12.41@115.10(ditto) After Rebuild: Current Mods Dyno Tune by IPS 12.8@108 (12.5 psi dropping to ~11 @redline, 2.0 60', pump gas, my tune) |
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#423 (permalink) | |
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I need more cars
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You can read some of my recent posts regarding weather issues I've had. I'm in the process of retuning to handle cold weather.
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Cheap, reliable hosting for 3Si members 1993 Green 3000GT VR4 - Best ET 11.7 - Best Trap 122 - 475hp / 477tq - Pauter rods/Ross pistons/High rev kit--springs and titanium retainers/Ported heads/Dual pump, dual feed fuel system with hotwire/Dejon intake/Scanmaster/550cc injectors/MSD 8.5 wires/HKS DLI/H&R springs/GAB adjustable struts/PST CFDS/EMU/SBC-iD/2 Greddy 60mm EGT with peak hold/Greddy 60mm Boost with peak hold/2 SPA dual digital gauges (oil pressure/temp, water temp, fuel pressure)/AEM WBO2/18x9 Bronze Pro N1s/265/35 Yoko AVS Sports/PPE FMIC with PPE HPC-coated pipes/Flexalite fans/Spec 3+ clutch/RPS flywheel/Tial BOV/DR 3.5" exhaust/Non-resistor copper plugs/Brembo F40 calipers and rotors/short shifter/poly motor mounts/rear control arms/Krank vents 1995 Caracas Red 3000GT VR4 - Sold - BPU - 12.7 @ 107 1995 Red Dodge Stealth RT/TT - Sold - RPS Stage II Clutch 1993 Champagne Stealth - Sold K&N intake 1993 Green 3000GT base - Sold |
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#424 (permalink) |
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rock on, yeah rock on
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ok, i haven't really even gotten a look at the software yet (car is at ips being tuned), so some of the lingo thrown around here is somewhat of a second language to me. but 2root4u, you're using the map setup on the emanage? and i saw mention of tuning it for the cold weather, and it will be fine for when it warms up? as in safe, no knock and not lean? if so, that's perfect. it's getting tuned in ohio right now (not gonna get much colder than that for my purposes) and i'm in florida, and the car will be coming down here after it's done up there.
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#425 (permalink) |
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Forum Member
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Im wondering if this is actual knock im seeing or noise i have the knock sensor setup like in the beganing of the thread. HELP ME OUT PLEASE
http://files.filefront.com/run+1lg2/.../fileinfo.html
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IF YOU NEED ANY WORK DONE ON YOUR 3S GIVE ME A CALL AT 540-454-0925
PARTS for SALE EMANAGE ULTIMATE Complete setup 3.15L built short block denso 660cc injectors MSD DIS-4- 6G74 DOHC JDM PARTS Parts NEEDED Bracket power steering pump mounting Bracket Alternator (big Bracket) Pulley power steering belt adj Cover Timing belt Forward Cover Timing belt Lower Cover Timing belt rearward Thermostat housing 400HP 91 dsm sold 1991 VR-4 PEARL WHITE (Galatea) WITH MODS ![]() Pics of the building: http://s181.photobucket.com/albums/x127/vr440/ 1998 base 3000gt sold 1991 red vr4 sold 1991 orange/black 49,000 original miles sold 1992 red sl being parted out gone 1990 300zx NA SOLD 1994 VR4 REBUILT ENGINE AND 15G's SOLD sak1782 1992 VR4 TD05 Red with black interior sold 1992 silver SL sold 1992 STEALTH TT in the works 1991 300ZX TT |
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#427 (permalink) |
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just some guy.
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That's a mixture of MOSTLY noise and lift knock. NOT REAL KNOCK
IF you put the data in Excel to see the acurate timing log, you will notice that your timing doesn't drop when you start getting those knock values. Also, you will notice that most of those knock values are comming while you are off throttle (your IDC's and boost pressure give that away since your throttle position values weren't on the log). Plus, the highest value you got was like a few spikes at 12 or so. very isolated spikes. The knock sensor is VERY sensitive, and the EMU will pick up EVERYTHING it puts out. The ECU doesn't care as much. Those shakes are just typical engine noise. Even when you were at 85 mph, you got like ZERO knock at 7 or so psi. There are some very abnormal low spots in your ignition timing however (4000 +/- 500 rpm at 6 psi +). your timing TANKS at those spots. Are you taking timing out there???? IF you are, you might want to put it back so you don't burn valves. Intake temp seems to be nice and cool. I am assuming you are using a stock mas. 65 degree temps sound about right? Good logs. Just put the timing back in it and run more boost .
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![]() Pretty good for 2 shot turbos and a boost leak ![]() |
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#428 (permalink) | |
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Paid Member
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Quote:
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Selling my 95VR4 coupe.
http://www.3si.org/forum/f10/95-3000...10-xxx-439661/ Bought a spyder. ![]() If my posts have been helpful or informative, or even entertaining, rep is appreciated. ![]() |
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#429 (permalink) |
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Vr4 Owner As of 12-20-04
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Hello everyone. I just finished building my car and I have to say, I am very intimidated and overwhelmed by this tuning aspect. There seems to be soooo many variables, methods and personal preferances. Also, I have no experiance. This is the first car I have ever modded.
Here is what I did. 13ts Evo 560's EMU - wired to stage 3 (Guess that was dumb?) Denso Supra Fuel Pump Hotwired AEM FPR set at about 44psi Earls fitings and hose w/ ek2 manf. fuel loop Removed mas and intake pipes, have a filter on each turbo inlet Greddy MAP sensor GM IAT AEM wideband (guage kind) ips 4" exhaust Basically, I thought I could just use blackstealths speed density tune to get the car able to be moved around a little so I could have a professional get it tuned up on a dyno and running good. The car will start and idle pretty low. Kinda lopey. Sounds like a v8 with the 4" downpipe dumping straight out. But it will only run for a few seconds before it floods. Then I pulled the power from the fuel pump to burn out the gas in the cylinders and it will idle for like 3 minutes if the fuel pump is not plugged in. I have my MAP sensor in option one and my wideband in option 2 I dont know what else I can tell you detail wise. Here is what I was going to ask. I was wondering if someone would be nice enough to work with me kinda one on one to get this thing working. Mybe some of you here are familiar enough to make a generic tune that will get me running around a little on the rich side. I will glady pay you for your help. Im just a god damned newb! I feel retarded. haha Ill snap some pics of the car tho, at least its is installed nice.
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#430 (permalink) |
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Verified Seller
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Swap option 1 and 2 around and maybe my map will work for you. You need to confirm this as mine is backwards compared to yours.
Also my map is made for stage 2.5 wiring, not stage 3 so you'll definitely have to make some adjustments. |
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