Carbs VS FI, Which is better? |
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Carbs VS FI, Which is better? |
dbgriffith75 |
Sep 16 2008, 04:08 PM
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#1
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TheGrif Group: Members Posts: 509 Joined: 25-July 07 From: Iowa, USA Member No.: 7,945 Region Association: Upper MidWest |
So basically I'm just curious here on who's opinion is what and why. I might have seen a similar post a while back but I don't remember for sure.
My personal opinion is carbs. I don't know what a new injector for a 914 is going for but generally speaking carb kits are cheaper than new injectors. Plus, I like trying to fine tune carbs- if one is set right the engine can be extremely efficient. My teener is set up for carbs and I plan to leave it that way. |
PRS914-6 |
Aug 7 2011, 09:18 PM
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#2
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Excellence Magazine Project 914 3.6 Group: Retired Members Posts: 1,278 Joined: 20-May 06 From: Central California Member No.: 6,031 Region Association: None |
Well, the poll only asks FI vs. carbs so general question gets a general answer, not really 914 but general...
Years ago when FI first came out I didn't understand it.....it was voodoo to me. When I ran into problems I yanked it off and installed carbs. Had them all my life and they were easy to me. Fast forward 30 years and you couldn't give me a carb.....You couldn't pay me to convert. Now I yank off carbs and install FI. I went all the way the opposite direction where I actually burn my own chips (Chevy) When you can drive down the road running your vehicle on a laptop making changes on the fly you realize the time savings and efficiency. Too lean in one area and you can richen it up with a click of the mouse. Ping in one area, retard the timing in that area with a click of the mouse. Want a faster idle, a mouse instead of a screwdriver! Too lean at warmup, easy to fix....all on the laptop. When you get it perfect, you burn the chip and you are done. It's unbelievable awesome to do tuning this way instead of jet changes and recurving distributors. Those are the positives. The negatives are one....a steep learning curve. Modern day electronics pretty much diagnose a bad component on their own (not our 914's) The negatives of carbs..... When the air/fuel mixture goes around a turn in a manifold it has a tendency to separate Gaskets dry out when it sits Warm up is problematic Mixture gets heated in manifold Big cams , their low vacuum and intake reversion drives you nuts Don't adjust for altitude Not accurate across the temperature spectrum Don't adjust for a hot or cold engine or air temp Float bowls are vented to atmosphere causing sludge when sitting Lots of work to adjust for engine changes Ice up without "preheat" air A carb is perfect on Fred's car.....Personally, I would leave it there (IMG:style_emoticons/default/biggrin.gif) |
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