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    Originally posted by ThatOneEuroE30 View Post
    I love that cortina.
    It's my baby :D

    But not at all because it's worth money and I don't own it :(
    Originally posted by LateFan View Post
    Well this is the place!

    Is that engine a Ford block and a Lotus head? I don't know the history of that engine. Plus, it looks like it sits nice and low in the chassis.
    It's your lucky day! I love the story of this engine, and I think it's fair to say it's the most prolific engine block in history.

    The Ford Kent family of engines can trace its roots back to the 105E, found in things like the 1950s-era Anglia in 1000, 1200, and 1300cc variants I believe.

    Next came the 115E which is also known as the "pre-crossflow" due to its intake and exhaust manifolds being located on the same side of the cylinder head. There are various pre-crossflow codes, but they're all different versions of the same engine. This engine, aside from being used in the Mk1 Ford Cortina, became a staple of amateur racing and car building. Numerous builders (like Ginetta!) liked the relative simplicity, durability, availability, and performance of the engine compared to offerings from companies like MG.

    Around this time (early 1960s), Ford wanted to make a big push to remove their image as an "old person's car" and decided the Cortina sedan was the way to do it. Aiming at victory in the popular BTCC championship, they collaborated with Lotus and their in-development twin-cam cylinder head to be used in the Elan. Interestingly, the first 100 engines were 1,498cc and were used in prototypes for the Lotus 22, Lotus 23, Elan, and Lotus Cortina (also known as the Lotus 28). The bore was then increased, driving displacement to the 1,557/1,558cc it retained from then on. The Twin Cam found huge success in all types of racing ranging from saloon to sports racing to formula B. It--like the 115E--was also shoehorned into small-volume sports cars and sports racers like the Ginetta G4R and Elva MkVII. In a more subjective vein, it makes a hell of a noise :devil:

    The next step for the Kent block began with the MkII Cortina: It received a cross-flow head, allowing a large improvement in efficiency and power potential. This engine was most famously the basis and foundation of Formula Ford, which retained the engine (including carburetors!) as spec until only a few years ago!

    Cosworth used the Kent family of engine blocks in a mind-blowing variety of engine designs. The SCA, MAE, FVA, the whole series of BD engines....they appeared in everything from sedans to sports cars to F2 to Can Am!
    The most amazing member of the BD family of engines--still based on the Kent, mind you--is the BDT, found in the RS200 and capable of 800hp!

    The Kent then went through a few less-interesting iterations as the base for front wheel drive cars like the Fiesta. Interestingly, the engines were used and updated until the 2002 model year!

    So basically, it's very arguably the most important engine in the history of international motorsport.
    Interested in vintage cars? Ever thought about racing one? Info, photos, videos, and more can be found at www.michaelsvintageracing.com!

    Elva Courier build thread here!

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      what does it develop in hp?
      sigpic
      Gigitty Gigitty!!!!

      88 cabrio becoming alpina b6 3.5s transplanted s62
      92 Mtech 2 cabrio alpinweiss 770 code
      88 325ix coupe manual lachsilber/cardinal
      88 325ix coupe manual diamondschwartz/natur
      87 e30 m3 for parts lachsilber/cardinal(serial number 7)
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        Originally posted by flyboyx View Post
        what does it develop in hp?
        The Cortina's Twin Cam produces about 175bhp, but it's more of a reliability motor than an all-out performance engine. Numbers around 225bhp are possible...for a few hours.
        Interested in vintage cars? Ever thought about racing one? Info, photos, videos, and more can be found at www.michaelsvintageracing.com!

        Elva Courier build thread here!

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          Originally posted by ELVA164 View Post
          The Cortina's Twin Cam produces about 175bhp, but it's more of a reliability motor than an all-out performance engine. Numbers around 225bhp are possible...for a few hours.

          Lmao thats gonna be my 2002 motor. Will run on hours not miles. Will be interesting when i start building that motor. I need to buy a bunch of tools first.


          1989 325is l 1984 euro 320i l 1970 2002 Racecar
          1991 318i 4dr slick top


          Euro spec 320i/Alpina B6 3.5 project(the never ending saga)
          Vintage race car revival (2002 content)
          Mtech 2 turbo restoration
          Brilliantrot slick top "build"

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            Originally posted by ELVA164 View Post
            It's your lucky day! I love the story of this engine,


            ... collaborated with Lotus and their in-development twin-cam cylinder head to be used in the Elan.

            This engine was most famously the basis and foundation of Formula Ford...

            Cosworth used the Kent family of engine blocks in a mind-blowing variety of engine designs.

            .... the BDT, found in the RS200 and capable of 800hp!
            I asked the right guy! Nice! I didn't know most of that, just always heard "Lotus Cortina" and wondered.

            So, 175 reliable out of 1600 is pretty darn good. People run the Alfa Nord-block 2-liter up into the 185 / 200 range, but like you said, the question is for how long. Not sure how much the TZ 1600s in the 60s made.

            Thanks!

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              Originally posted by LateFan View Post
              I asked the right guy! Nice! I didn't know most of that, just always heard "Lotus Cortina" and wondered.

              So, 175 reliable out of 1600 is pretty darn good. People run the Alfa Nord-block 2-liter up into the 185 / 200 range, but like you said, the question is for how long. Not sure how much the TZ 1600s in the 60s made.

              Thanks!
              I'd credit the Lotus Cortina with singlehandedly kickstarting the Ford racing programme (as they would call it). It's kind of a big deal, which is why I'm so honored to drive one occasionally.

              175 is a bit disappointing as I know there's probably ~7hp possible in cams our engine builder...neglected to mention until after he was done with the refresh. We have a couple other cars with about 190bhp, and those engines are good for 15-20 hours with a redline of 8,000.

              The TZ1 made 160 horsepower in period and the TZ2 made 170; I'm sure those numbers would be higher now with no decrease in reliability. After all, how much farther down could you go? :D
              Interested in vintage cars? Ever thought about racing one? Info, photos, videos, and more can be found at www.michaelsvintageracing.com!

              Elva Courier build thread here!

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                Originally posted by elva164 View Post
                i'm sure those numbers would be higher now with no decrease in reliability. After all, how much farther down could you go? :d
                ha!

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                  Too much good stuff

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                    The world famous Rover Can-Am engine......sitting in a Defender near you! (this is what you find under the plenum cover)

                    Click image for larger version

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                      1986 Schwartz Black 325es
                      2005 Alpine White E46 M3

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                        ADAMS Autosport

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                          Those are some big shoes.
                          Interested in vintage cars? Ever thought about racing one? Info, photos, videos, and more can be found at www.michaelsvintageracing.com!

                          Elva Courier build thread here!

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                            that's amazing work, but the tips not being centered drives me nuts!
                            '87 BMW 325i - ground control c/o, condor bushings, 16x8/16x9 wheels - SOLD

                            '09 MazdaSpeed 3 - FOR SALE

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                              Just whack it with a big mallet and it'll be fine. Actually that's probably just camera angle..


                              So, a real question for someone who knows, about that exhaust -

                              The headers are flowing through two small high-flow cats? (the cylinders)
                              ..then what are the small elbow things at the 90º corner?
                              ..then what are the two sensors hanging off that look like a full pressure regulator? A/F ratio?

                              Then...is there any muffling going on inside there, or are those just big megaphone tips? Must sound great.

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                                Originally posted by ELVA164 View Post
                                Those are some big shoes.
                                Yes they are, the 991 RS runs the same wheel/tire size as the 918. It's deceptive till you see one on a lift or squat down on the ground!

                                Originally posted by lemansguy View Post
                                that's amazing work, but the tips not being centered drives me nuts!
                                Ha, OCD as well? As LateFan said, that center section slides back and forth, couple taps and bob's your uncle.

                                LateFan-

                                The headers are flowing through two small high-flow cats? (the cylinders)


                                Yes, they are 200cell HJS cats.

                                ..then what are the small elbow things at the 90º corner?


                                They are big "side mufflers" that are in part connected to a "sport" button, they could be bypassed entirely, but things get a bit too loud after that.




                                ..then what are the two sensors hanging off that look like a full pressure regulator? A/F ratio?


                                Those are the "sport button" activated bypass valves that when open just allow the exhaust gases to go straight around that bend and out the back (rather than be routed up and through the mufflers). This style of valve is pretty universal on exotics, whether German or Italian.


                                Then...is there any muffling going on inside there, or are those just big megaphone tips? Must sound great.


                                There's a bit of an obnoxious sound overlay, but there was some video shot recently that covered this car.

                                Join Alec Udell and James Sofronas as they put the GMG GT3RS to the Test at Laguna Seca! Featuring our new Motorsport LongTube Header System and our Famous C...
                                ADAMS Autosport

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