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. |
Mark Henry |
Sep 17 2008, 10:01 PM
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#2
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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 |
Now if your happy with a stock 80/95hp L/D-jet engine then I agree that stock FI is the best, but I'm not so then you're into carbs or PEFI.
Simple as that. Carbs are not perfect but they can be tuned to a point of being comparable to FI and handle all sorts of mods to the engine. The 180hp (150rwhp) T4 I built runs just as smooth as a 95hp d-jet. My bus with a 2L T1 w/dual DCNF's runs better than stock 1600 with more than twice the power. Most issues with carbs are user error, poor linkage set-up being #1, followed by engine faults (built bad or worn out) and poor choices on parts. With an solid engine, O2 meter and a set of jet reams I can set the A/F ratio right on the money. (I BTW I find the A/f ratio more stable with carbs). Four years ago I drove my VW squareback all winter, no chokes on my dual weber's down to -25C, never a problem. If we were talking /6's there is almost no FI vs carb debate..if there's no FI on that /6 then slap some weber's on that puppy. Guys will spend $3k on PMO's |
So.Cal.914 |
Sep 18 2008, 06:01 PM
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#3
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"...And it has a front trunk too." Group: Members Posts: 6,588 Joined: 15-February 04 From: Low Desert, CA./ Hills of N.J. Member No.: 1,658 Region Association: None |
Now if your happy with a stock 80/95hp L/D-jet engine then I agree that stock FI is the best, but I'm not so then you're into carbs or PEFI. Simple as that. Carbs are not perfect but they can be tuned to a point of being comparable to FI and handle all sorts of mods to the engine. The 180hp (150rwhp) T4 I built runs just as smooth as a 95hp d-jet. My bus with a 2L T1 w/dual DCNF's runs better than stock 1600 with more than twice the power. Most issues with carbs are user error, poor linkage set-up being #1, followed by engine faults (built bad or worn out) and poor choices on parts. With an solid engine, O2 meter and a set of jet reams I can set the A/F ratio right on the money. (I BTW I fine the A/f ratio more stable with carbs). Four years ago I drove my VW squareback all winter, no chokes on my dual weber's down to -25C, never a problem. If we were talking /6's there is almost no FI vs carb debate..if there's no FI on that /6 then slap some weber's on that puppy. Guys will spend $3k on PMO's QUOTE For modified engines when you have to remove the stock fuel injection then a modern fuel injection system running in closed loop gives even more advantages. Carbs don't change mixtures according to feedback from the engine like FI in closed loop, so they can't provide correct fuel/air ratio for every situation. It's impossible. They simply don't have the physical capacity to do that. You can get carbs to be good, no doubt, but never as good as well tuned fuel injection. Any new performance cars you know of being produced today that use carburetors? Highest buck, no compromise cars running carbs? Even as optional equipment? Why not? Sure you CAN drive a carbureted car in the winter with no chokes, we've all done it. But you've got to admit that it was primitive and your engine wasn't real efficient or friendly until it was warmed up. And did you try doing that at 8000 feet? That's the whole point, fuel injection gives you the correct air/fuel ratio no matter what the situation. Carburetors don't. They can't. Put on $3000 PMO's IF there's no FI on the 6? Vroom, vroom. I do have a preference like alot of others here, carb or FI. This guy is like a Jehovah's Witness at your door, and no matter what my or anyone elses beliefs are HE IS RIGHT. Its like the neighbors chijuajua...bark bark bark bark bark bark. QUOTE See? One more useless thread about FI vs carbs. To each his own. Why get hot and bothered and call someone an dick just because they have a preference? Do you think the guy that drives a Porsche thinks another guy is a dick cause he drives a Ferrari? Bullshit! There are applications where FI works best, and of course, where carbs work best. Why not save your typing skills for something that really matters? If ya wanna argue about useless bullshit, go to the sandbox and post in one of the 1237 useless political threads? Hey vsg914 'Blow Me"... |
DBCooper |
Sep 18 2008, 07:09 PM
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#4
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
I do have a preference like alot of others here, carb or FI. This guy is like a Jehovah's Witness at your door, and no matter what my or anyone elses beliefs are HE IS RIGHT. Its like the neighbors chijuajua...bark bark bark bark bark bark. Convincing argument. Lots of good technical info there. (IMG:style_emoticons/default/rolleyes.gif) Hey vsg914 'Blow Me"... PMS? |
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