Series 71

Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Series 71 shopping experience:

1. Compare - without doubt the biggest advantage that the Series 71 offers shoppers today is the ability to compare thousands of Series 71 at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.

2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about

3. Testimonials - don't know anybody that has bought a Series 71? Wrong! If the Series 71 is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.

4. Questions - Got a question about Series 71 then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....

5. Reputation - Never heard of the company selling Series 71? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Series 71 and build up a picture of their reputation for sales, returns, customer service, delivery etc.

6. Returns - still worried that even after all of the above your Series 71 wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.

7. Feedback - happy with your Series 71 then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.

8. Security - check for the yellow padlock on the Series 71 site before you buy, and the s after http:/ /i.e. https:// = a secure site

9. Contact - got a question about Series 71, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.

10. Payment - ready to pay for your Series 71, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.

The Detroit Diesel Series 71 is a two-stroke cycle diesel engine series, available in both straight engine (the company's initial available engine configuration) and V engine (introduced in 1957) configurations, with the inline types ranging from one to six cylinders and the V types ranging from six to 24 cylinders. It was introduced as the initial flagship product of the Detroit Diesel of General Motors Corporation in the division's 1938 founding.

The 71 series engines utilized uniflow scavenging, where a Roots blower mounted to the exterior of the engine providing air at greater than cylinder pressure (positive displacement), and exhausted through two or four exhaust valves per cylinder. The supercharger was used to provide positive displacement, required for a two stroke cycle, instead of using the crankcase as commonly used on small high speed gasoline motors. Later high performance versions were available with turbochargers, and turbochargers with aftercooler.

The most popular incarnations of the Series 71 diesel as used for highway vehicle applications included the inline 6-71 and the V-block 8V-71 (the latter of which was introduced for sale in 1957). Both incarnations had found their way in many popular applications including trucks, heavy-duty buses, motor homes, construction and industrial equipment, and List of military applications. It is very popular in marine applications, not only as a propulsion engine in small craft in the 6-, 8 and 12 V configurations but as an auxiliary for powering ship's generators, winches and other heavy machinery.

The inline 6-71 engine, in all of its variations, was also available as a 'pancake engine' (here invariably called either 6L-71 or 6N-71) for horizontal (underfloor) mount applications, such as on larger Crown Coach Corporation and Gillig school buses and articulated bus puller transit buses (such as the Ikarus Bus 286).

Features

71 cubic inches (1.2 liters) per cylinder.
1.2L (1-71/Single cylinder) 2.3L (2-71/I-2), 3.5L (3-71/I-3), 4.7L (4-71/I-4), 7.0L (6-71/I-6 and 6V-71/V-6), 9.3L (8V-71/V-8), 14.0L (12V-71/V-12), 18.6L (16V-71/V-16) and 24.1L (24V-71/V-24)
Power ratings ranging from 15 to 1100 HP
6-71 (inline; turbocharger variation) supported the DDEC I, II and III.

Popular Horsepower Ratings (6-71 and 6V-71)

650 ft•lbf @ 1400 rpm 238 hp governed at 2100 rpm (naturally aspirated)
801 ft•lbf @ 1400 rpm 230-275 hp governed at 1800-2100 rpm (turbocharged)
810 ft•lbf @ 1200 rpm 290 hp governed at 2100 rpm (turbocharged/aftercooled they are a 2 stroke engine

Popular Horsepower Ratings (8V-71)

866 ft•lbf @ 1400 rpm 318 hp governed at 2100 rpm (naturally aspirated)
990 ft•lbf @ 1400 rpm 305-350 hp governed at 2100 rpm (turbocharged)
1064 ft•lbf @ 1200 rpm 305-370 hp governed at 1800-2100 rpm (turbocharged/aftercooled)