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08-11-2013, 04:23 PM | #23 |
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Interesting results Adam, with my vt625 kit, 93+ octane and wm, the car made 10-20+ whp simply by turning it on, same with the vt3. However, when I ran an e85 mix with the vt3, it lost ~10whp.
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08-11-2013, 05:15 PM | #24 |
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08-11-2013, 08:43 PM | #25 | |
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08-11-2013, 08:55 PM | #26 | |
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08-11-2013, 09:08 PM | #27 | |
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16 F82 M4 DCT - ZCP - JB4 - 556WHP / 570WTQ
08 E92 M3 DCT - Bolt Ons - 60-130MPH 10.71s - 11.88 @ 118MPH - 377WHP ESS VT2-625 SC 60-130MPH 6.80s - 11.30 @ 129.3 MPH 586WHP / 379WTQ ESS VT3-750 - 60-130MPH 6.14s - 10.81 @ 135.13 MPH 690WHP/463WTQ Shift-S3ctor E92 M3 - 1/2 Mile Trap Speed WR - 174.13 MPH |
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08-11-2013, 09:10 PM | #28 |
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...and do you remember the nozzle size that you used?
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08-12-2013, 12:13 AM | #30 |
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I have the 650 kit which requires at least 93 octane.
Running 91 plus water/meth is a risk because if something happens to stop the meth flow..."boom".
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08-12-2013, 09:01 AM | #31 |
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Didnt know it required 93, that sucks becuse cali only has 91. So that means those people have to constantly mix gas just to run the kit
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08-12-2013, 10:35 AM | #32 |
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I would start with a tune up, that is made for the meth, problem is if it is not tuned the engine thinks it is going lean with the meth and dumpes fuel in, making it rich. There really is no way to account for the change unless a proper tune is done. The a/f graph that was posted is pretty far out to lunch.
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08-12-2013, 11:02 AM | #33 |
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I would hope within the flash tune you could have the ECU add timing when IATs decrease (when the meth is flowing). I am able to program that within my SCT tuning software.
Generally if you aren't tuned for the meth/octane the W/M mixture will cause you to run richer, hence making less power. |
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08-12-2013, 11:11 AM | #34 | |
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Furthermore for the meth to work correctly it need to be introduced into the air track as early as possible. Like on the outlet of the blower, I am sure some will argue but the fancy multi port meth injection kit that dumps the meth directly down the throttle bore is the worst place to put it. It has to be introduced before the manifold so the IAT sensor can know what is going on. Introducing meth to the stream AFTER the iat sensor is a waste of time.
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Last edited by kawasaki00; 08-12-2013 at 11:16 AM.. |
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08-12-2013, 11:42 AM | #35 |
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08-12-2013, 11:51 AM | #36 | ||||
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Dyno conditions are much more favorable that being on the track so we were seeing only slight drops in IAT's on the dyno compared with no water/meth. But I bet you are right that on the track, temp differences can be extreme. When I had my 335 at the first Airstrip Event, I logged 36 deg C IAT's jumping 90 deg C IAT's by the end of the run when meth didn't flow. Next run after I fixed the flow issue IAT's started and remained at 36 deg C so yeah that's a huge delta.
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08-12-2013, 12:40 PM | #38 | ||
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Where did dlsj5 tap his meth nozzle. If it is in the manifold or throttle body that is a huge difference from where you tapped into the blower.
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08-12-2013, 01:21 PM | #39 | |
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With full time factory wide band 02 forcing the ECU to adjust fuel to hit the AFR targets in the tune, won't the ECU adjust the fuel to hit the targeted AFR? Meaning we won't see the AFR go pig rich, or if it does, it won't repeat and will be corrected. |
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08-12-2013, 01:44 PM | #40 | |
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I wonder what the fuel trim is doing when the meth comes on. Would help to know that. Every engine is different, what works for one car might need to be adjusted on another car.
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Last edited by kawasaki00; 08-12-2013 at 03:05 PM.. |
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08-12-2013, 02:32 PM | #41 |
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60-130 times would be a better way to determine the effectiveness of the system.
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08-12-2013, 02:48 PM | #42 |
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That is a pretty large spread between runs. Like I told you before in the other thread you made, expecting meth to make you hp most likely wouldn't happen especially 20+ hp. However I am very surprised the meth did not help with the consistency at all.
Last edited by SflBimmer8484; 08-12-2013 at 02:57 PM.. |
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08-15-2013, 02:29 AM | #44 |
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Good luck Adam!
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