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    Ethanol and Methanol Q's

    The term is "latent heat of evaporation" and that is also what gives Alcohol less thermal efficiency. When we are talking mpg we are talking about low engineloads and alcohol with a high latent heat of evaporation is wery good for high loads but therefore quite crappy in low load conditons...
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    Ethanol and Methanol Q's

    What characteristics of the fuels in question would make that possible with alcohol but not with petrol? Way less btu per unit and thermal efficiency with alcohol is quite a big drawback to compensate for if mpg is the method of comparison. Personally I love alcohol, but only as a race...
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    Ethanol and Methanol Q's

    Unfortunatley that´s totally impossible because petrol contains more energy per unit of measurement (weight/volume). If we´re talking $/mile it´s another story IF you can get E100 cheap enough.
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    Ethanol and Methanol Q's

    Ehm.. SAAB get plenty of POWER out of their E100 engine that isn´t even released yet.. only a conceptcar, not in production.. so how can you discuss that single cars mileage? Saab themselfs claim 10% better mileage for their E100 car.. but compared to what?? Their E85 cars are known for their...
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    Ethanol and Methanol Q's

    Just make shure that the liners in your fuel lines can withstand alcohol, some can´t. Same with fuel pressure regulator, fuelpump, filter and couplings. Then increase the size of your injectors by approx 50%. If you are going to boost, you´ll need to upgrade the ignitionsystem as well to...
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    Project 1gz v12 jza80

    How deep is the sump? How much of the sump can be cut if a dry sump is mounted?
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    Project 1gz v12 jza80

    Feels like cristmas for us to..!! I´m SUPER interested in your "findings" when you start taking that baby apart!!! =)
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    Rotrex Supercharger?

    The Rotrex superchargers are without question the most efficient on the market. We´re talking less parasitic lossses for a given hp output then the rest, nothing else. This maby is nothing that the average garage owner cares about.. but no other centrifugal supercharger of equal size, trim etc...
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    1000+hp 1UZ in drag rail!!!!

    HKS has a supra with an 1uz or 3uz http://www.mkiv.com/mkivregistry/of_interest/hks_drag_supra/ http://mkiv.supras.org.nz/articles/hpi15_2.htm Turbonetics did a Celica with 2uz bottom and 1uz heads http://www.turbomagazine.com/features/0210tur_covercar/
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    oil pump for turbo

    The problem that the pump should solve isn´t to push the oil to the turbo, but to scavenge it away from the turbo, so don´t mount an overpressure relief valve on the oilfeed - that would lower the engines oil pressure. There are also some concerns about the use of fuelpumps in this...
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    oil pump for turbo

    http://store.summitracing.com/partdetail.asp?autofilter=1&part=TIL%2D40%2D524&N=115&autoview=sku Find oil pressure, ex use a T-piece from oilpressure sensor, and route an oil line to the turbo, measure oil pressure at the turbo and use a calculated flow restrictor in the turbo oil inlet to...
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    oil pump for turbo

    Remotes isn´t as efficient as a standard mount, but ofcourse they give much more horsepower than no turbo at all. I´m just saying that if one has to chose between a std or a remote mounted turbo solutions and can fit the turbo in either location, an optimized standard mounted turbo solution...
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    oil pump for turbo

    To be diplomatic, I would say that it´s questionable to draw conclusions about EGT based on two different engines with different spec and definetly different Volymetric efficiency. Use the same engine with the same turbo, and alter "nothing" but the EGT and you will se what the EGT can do for...
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    Coking

    How is your crank case wentilation setup? If you have the oil return line from the turbo routed to the oilpan (most common setup) and to much pressure inside the crank case, the turbo won´t get the oil out and the turbo will wear out fast, increasing oil pressure to compensate or using a...
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    Oil Jets

    A bearing needs flow and we use pressure to ensure that an orifice flows enough. The amount of load that an oil film layer can take is realtive to the oil, not the flow, if flow is enough, more flow will not change the maximum load that the oil layer can take, if flow is to low, all bearing...
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    Compression ratio?

    Boost x VE (%) give us how much air that actually get´s inside the cylinders. (and intake temperature, but lets not complicate the matter for now) Compression ratio says how much that air get compressed on the compression stroke and nothing about what we se on a boost gauge. Boost itself...
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    best engine to twin turbo

    You better hurry up guys...! 1000hp isn´t far away! http://www.ultimatestreet.com/news.asp Download - 10/11/2005 - Let's go for a ride!
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    Lightweight pulleys for 1/2/3 uz motors?

    See if you can provide anodizing too, I think that that option would attract customers.
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    Lightweight pulleys for 1/2/3 uz motors?

    I like the idea of light weight and the bling-bling effect isn´t a bad thing, but unfortunatley, the importance of rotational weight is related to the radius of the rotating mass - more mass away from centre = much rotational forces, mass close to center = low rotational forces. For example...
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    Turbos from China

    Have you guys heard of internet poker? it´s supposed to be quite fun and also a good thing for you guys that need a little mor gamble in your life... IMHO it seems like a little bit more fun than Russian roulette with a $10.000 engine. A bearing that doesn´t seal and the engine smokes is one...


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