1.7 Engine Build Questions, Need advice on what I should know |
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1.7 Engine Build Questions, Need advice on what I should know |
Matty900 |
Dec 5 2016, 01:29 AM
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#1
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Senior Member Group: Members Posts: 1,269 Joined: 21-February 15 From: Oregon Member No.: 18,454 Region Association: Pacific Northwest |
My 72 barn find ( http://www.914world.com/bbs2/index.php?sho...=275587&hl= ) is now starting to get a lot of work done so I can hopefully make it to lots of rallies next year. The car Has 50K original miles on a 1.7 that had some work on it previously making it a 1911 with Dlortos on it.
The engine is now torn down for rebuild with a little more power. I would like it to look as stock as possible but would like it to be a sleeper. I am considering 2.0 LTR FI and having everything else built. I am looking for suggestions on what you would do to the engine and why. Thanks for the help Attached thumbnail(s) Attached image(s) |
Dave_Darling |
Dec 5 2016, 02:45 PM
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#2
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914 Idiot Group: Members Posts: 14,984 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Your 1911cc with Dells should be about as good as you can easily do. If there's nothing wrong with it, slap it back together and keep driving! Most especially if you are going to do an engine swap in the near to middle future, the cheap and easy way is likely the way to go.
For more power, you're looking at spending money that you won't get back. Either a nice cam and a bit of head work to wake up the 1911, or finding a 71mm crank and rods (and P&Cs) to make the 2-liter's 1971cc displacement, or a 2056cc. But the 2.0 heads are expensive, and your 1.7 heads would need a good bit of work to flow like those do. If you can find a 2.0 engine complete with FI, that should be mostly a bolt-in. But those can be a bit hard to find with all of the bits on them. Oh, a good exhaust like the Tangerine Racing header setup should provide a real boost in power; less-expensive headers will provide less of a boost and most mufflers aren't much improvement when using stock heat exchangers. I do think the best option is freshening up the current motor (if it's apart) and just driving it. --DD |
Matty900 |
Dec 5 2016, 06:20 PM
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#3
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Senior Member Group: Members Posts: 1,269 Joined: 21-February 15 From: Oregon Member No.: 18,454 Region Association: Pacific Northwest |
Your 1911cc with Dells should be about as good as you can easily do. If there's nothing wrong with it, slap it back together and keep driving! Most especially if you are going to do an engine swap in the near to middle future, the cheap and easy way is likely the way to go. For more power, you're looking at spending money that you won't get back. Either a nice cam and a bit of head work to wake up the 1911, or finding a 71mm crank and rods (and P&Cs) to make the 2-liter's 1971cc displacement, or a 2056cc. But the 2.0 heads are expensive, and your 1.7 heads would need a good bit of work to flow like those do. If you can find a 2.0 engine complete with FI, that should be mostly a bolt-in. But those can be a bit hard to find with all of the bits on them. Oh, a good exhaust like the Tangerine Racing header setup should provide a real boost in power; less-expensive headers will provide less of a boost and most mufflers aren't much improvement when using stock heat exchangers. I do think the best option is freshening up the current motor (if it's apart) and just driving it. --DD Thanks Dave. I am going away from the idea of anew engine swap on these cars now. I have 2 other cars that are better suited for engine swapping as they already have body kits on them. My plan now for this car is" a nice cam and a bit of head work to wake up the 1911, and doing a good bit of work on the 1.7 heads to make them flow. That being said, I know enough to know what I don't know, so I am trying to learn here. So I will probably ask some dumb questions along the way. You mentioned "finding a 71mm crank and rods (and P&Cs) to make the 2- liter's 1971cc displacement, or a 2056cc Do you have any recommendations for these, there seem to be a lot of options. |
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