02-01-2017, 01:27 PM | #29 |
Drives: 2015 C7 Z06 M7 Join Date: Dec 2012
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I find VP MS109 (unleaded and oxygenated) to be almost magic in these engines - unfortunately expensive though.
I haven't tried the 100 unleaded as Ted suggests, but I'll add that to the list and give it a try as its probably cheaper than the 109... |
02-01-2017, 08:29 PM | #30 | |
Twin Turbo
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02-07-2017, 08:56 AM | #31 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
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Ted.
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02-07-2017, 09:43 AM | #32 | |
Drives: 2017 Nightfall Grey Auto 2SS Join Date: Mar 2012
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First off thanks I need a new key board after spitting tea all over it.. Could you please show us some facts on engines blowing up from quality shops because of Meth... not high HP levels, but the meth part causing the issue. |
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02-14-2017, 11:35 AM | #33 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
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Quote:
Ted.
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04-02-2017, 06:34 PM | #34 | |
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Last edited by Chevy71; 04-03-2017 at 06:14 PM. Reason: I'm illiterate |
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04-03-2017, 07:18 AM | #35 | |
FMPG
Drives: 2016 2SS Join Date: Dec 2015
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If you look at how meth injection works, you can see what he's talking about. The meth injected burns but doesn't detonate like normal gas would. When it burns the water released cools and it adds octane so you can run higher boost while on pump gas. When everything works, it's great, but that's assuming nothing ever goes wrong. When you start looking at the LT1 engine and how they designed everything, including the spray pattern of the injectors, they've built it all to maximize every drop of fuel during combustion for a high compression engine. If you run out of meth or something malfunctions and it's not injected at the right time, you'll end up with severe detonation which is fatal to the engine. You're also relying on an aftermarket system to time the injection exactly right, in order, into the correct cylinder and all of this is happening very, very fast. It's not that it doesn't work, it's that there are a lot of variables for a daily driver/street car. Here's some info I found online about the chemistry behind burning methanol fuel: Methanol burns in oxygen, including open air, forming carbon dioxide and water: 2 CH3OH + 3 O2 → 2 CO2 + 4 H2O One problem with high concentrations of methanol in fuel is that alcohols corrode some metals, particularly aluminium. An acid, albeit weak, methanol attacks the oxide coating that normally protects the aluminium from corrosion: 6 CH3OH + Al2O3 → 2 Al(OCH3)3 + 3 H2O The resulting methoxide salts are soluble in methanol, resulting in a clean aluminium surface, which is readily oxidized by dissolved oxygen. Also, the methanol can act as an oxidizer: 6 CH3OH + 2 Al → 2 Al(OCH3)3 + 3 H2 This reciprocal process effectively fuels corrosion until either the metal is eaten away or the concentration of CH3OH is negligible. Methanol's corrosivity has been addressed with methanol-compatible materials and fuel additives that serve as corrosion inhibitors.
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04-03-2017, 11:26 AM | #36 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
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When Meth injection works is works great, when it doesn't that is when catastrophe happens. especially in cases where your relying on it for fuel supply because your on board fuel system is inadequate. Stock LT-1 fuel system is done right around 575 RWHP If you think you are going to make more than that upgrade the injectors and high pressure pump first then you can add meth injection for octane and cooling instead of supplemental fuel system.
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04-03-2017, 11:52 AM | #37 | |
Drives: 2001 Audi TT, 2016 Camaro Join Date: May 2016
Location: Eastern Washington
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Flammability and long term corrosion became a concern for me. IMHO, stay with a 30% meth to water mixture in that the flammability issue goes away. As a side note, some folks tried injection pre-turbo and the results were almost funny if weren't for the cost to the individual. After about 1K miles, the compressor blades looked like a rat chewed on them |
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04-03-2017, 06:19 PM | #38 | |
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04-03-2017, 06:22 PM | #39 | |
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04-03-2017, 07:23 PM | #40 | |
Drives: 2016 Camaro SS Join Date: Dec 2016
Location: Carolina, PR
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04-03-2017, 08:22 PM | #41 |
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04-04-2017, 01:10 AM | #42 |
Drives: 2015 C7 Z06 M7 Join Date: Dec 2012
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