Generally speaking, DOHC engines have higher displacement and dual cams (one for exhaust timing and one for intake) which can be tuned independently for a higher range of performance. They are also usually more "stout" engines than single cam engines. It is however also possible to tune single cam engines as well. They have been around for some time and the same number of modifications exist for single and dual cam engines.

Single overhead cam (1 camshaft, exhaust only) and Dual overhead cam (2 camshafts, intake and exhaust)

Previous to '99 all 2.5L were DOHC and the crankshaft thrust bearing was on the #3 main bearing. This caused a see-sawing at high rpm due to the 2.5's longer stroke (everything was seemingly fine on 2.0 and 2.2 motors using this design). In addition, the 97-98 DOHC 2.5L used a piston with no skirt, which looked a bit like a pancake.

While the exhaust ports are the same size on all of the heads in question (1g and 2g DOHC and 4G64 SOHC), the intake ports vary wildly between them. The largest intake ports are found on the 1G DOHC head, followed by the 2G DOHC head, and finally our 4G64 SOHC head. For comparison, the 2G DOHC head intake port is 27mm x 55mm in size, while our 4G64 SOHC intake port is 27mm x 43.5mm in size. That's about a 20% reduction in size.

NO Same pattern... different spacing... A DOHC engine will not work in a stock SOHC frame... It will bolt up and different spacers made... but the front sprocket will be lined up with the left seat down-tube... may be OK in an aftermarket or custom frame with a single seat down-tube....

Search engines use software programs (algorithms) to index web pages, often called robots or spiders. They are programmed to constantly "crawl" the Web in search of new or updated pages. They will go from one to another until they have visited nearly every website on the Internet. Every search engine employs different criteria to determine if your website should be indexed and how well it should be ranked. The most popular search engines today are Google, Yahoo!, and MSN.

Search engines, such as HotBot, create their listings automatically. Search engines crawl the Web, then allow people to search through what they have found.

Is the Neon's engine really a Mitsubishi product in disguise? 1.3 Neon Transmissions 1.3.1 ATX (Automatic Transmission)

A Business Rule Engine is one part of a complete system for handling all the things involved in working with rules. Admittedly, it's an important part, but it deals only with execution... which rules need to be executed in what... Full Post "What's the difference between Business Rules Management Systems and Business Rules Engines?" ? Posted by James Taylor on August 22, 2005 at 09:29 AM in Business Rules, Business Rules FAQ | Permalink | Comments (0) | TrackBack (0)

Why is the ES235000 so expensive? It has the same IPP E3 engine as less expensive units, and heats the same area.

The library subscribes to numerous online databases that allow you to search for information from established, reputable sources. By contrast, internet search engines (such as Google) will only find information that is available for free on the World Wide Web. It's important to remember that you generally get what you pay for. Be sure to evaluate carefully any information retrieved from an internet search engine.

CY is a chinese company that produces good quality engines, similar in design to the popular and slightly more expensive Zenoah engines. The more expensive cars are often supplied with Zenoah engines, which run a bit smoother, develop a bit more power CC for CC. A Zen 26 should outperform (though not by much) a CY26. Once you start adding headkits though, it makes little difference which engine you originally started with.

The way I have always done it is to actively adjust my engines during break-in. During this time the engine can change several times so as soon at it does I land and adjust it. To begin with, on the first tank I first get it so rich that it hovers a little above middle stick. Hover for a couple minutes then let it idle for a minute to cool down. Do this for a whole tank. Let the engine cool, then on the 2nd tank you can hover and move around (at a slow walking pace).

DIS means distributorless ignition system. No rotor! - Chrysler is moving past DIS to a coil-on-plug system SOHC and DOHC refer to the number of camshafts; one or two. TBI - throttle body injection; one or two injectors spray fuel into the air as it heads to the cylinders. MPI uses one fuel injector for each cylinder. It sprays fuel in the intake manifold, firing at the intake valves. These are smoother than TBI systems, and have more power *and* better mileage.

Yes, it can be done, and has been done. Mitsubishi made this entirely possible and easy when it released the 1994 Galant GS, which came stock with the 4G64 DOHC engine. You can use the stock bottom end, and bolt on a DOHC head, using some parts from the above mentioned 94 Galant, such as the timing belt and cam gears (or adjustable 4G63t cam gears). There is a website that deals with this... Raycer97's Web Site

Cut off both of your old hoses and leave them on the engine side to make them the right size to fit the larger VTEC hoses.

The black top engine has more power (approx. 12Kw), bigger cams and throttle bodies, and sells for $3500. The silver top is $2500.