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tornik550 |
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,248 Joined: 29-January 07 From: Ohio Member No.: 7,486 Region Association: None ![]() |
I recently purchased a 911e 2.2l engine. Befor I install it in my 914, should I change carbs? A previous owner at some point changed from MFI to zenith 40 tin carbs. From my understanding, this is probably not the best setup for a 911e 2.2? I have looked at the different options, which do you think is most appropriate taking cost, hp/torque gains, drivability...
1. Leave the zenith carbs Pros- I already have them Cons- probably better forming options 2. Change back to MFI I probably can't do this one. I have no where to obtain the setup and I really am more comfortable with carbs 3. Change to weber 40 Ida's Pros- ? Power? Cons- expensive. Most likely between $2000-$2500 after rebuild 4. PMO carbs Pros- improved overall performance compared with the zeniths. Easy setup. Is it worth the cost? Cons- very expensive-$3600. Here are some other things that I am doing to the engine other than basic maintenance. Pertronix for the distributor, new plug wires (clewett), msd 6al (I already had this), msds headers. I do not plan on racing this car anymore, just spirited street driving. |
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Mark Henry |
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that's what I do! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada ![]() |
Almost everyone that has issues with carbs have no clue of how to set them up in the first place. With dual carbs a lot of the time it's a linkage issue, then ignition, jetting, vacumn leaks and lastly the engine is just plain beat.
MFI is great... but have you seen the prices peeps are asking for them (IMG:style_emoticons/default/blink.gif) Stay the course with the carbs you have, get it running, see how it runs and then research and decide if you want to try something else. BTW If one was to go EFI you could always gut and mod the zeniths to be TB's (IMG:style_emoticons/default/idea.gif) |
stownsen914 |
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#3
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Senior Member ![]() ![]() ![]() Group: Members Posts: 957 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None ![]() |
I'm a DIYer and have tuned PMOs and MFI on two different racecars, and Weber IDAs on my warmed-over 914/4 years ago. PMOs seem pretty easy to work on from what I can see. MFI has a bad rap in my opinion. It's not that hard to work on - just not as convenient to adjust, and most people don't understand them so knowledge is generally more limited. And of course MFI stuff has gotten really expensive.
I'd run it with Zeniths and keep your eyes peeled for whatever you decide to put on it. Eventually you'll find what you what at a decent price. Scott |
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