 Carbs VS FI, Which is better? |
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| 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. |
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| melnyk |
Sep 16 2008, 04:43 PM
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#2
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Member Group: Members Posts: 104 Joined: 26-July 08 From: wilkes-barre Member No.: 9,359 Region Association: None |
QUOTE(dbgriffith75 @ Sep 16 2008, 06:08 PM)  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. how efficient? i think i have a blown mps and i personally dont like over complicated devices. i would like 25-27 mpg. id so i think im just going to go that route if i can get this mileage. my car isnt a DD and a carb is way easier to diagnose for me. |
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| BarberDave |
Sep 16 2008, 04:57 PM
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#3
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Barberdave Group: Members Posts: 1,605 Joined: 12-January 03 From: Wauseon Ohio Member No.: 135 Region Association: Upper MidWest |
(IMG:style_emoticons/default/smilie_pokal.gif)
I have Carbs, i like them. How ever I voted for F.I.. Never haveing F.I. I would like to play with that. More power, adjustability , and original. I 'm nut's i guess!!!! Dave (IMG:style_emoticons/default/slap.gif) |
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| Lavanaut |
Sep 16 2008, 05:03 PM
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#4
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Hungry Mind : Thirsty Gullet Group: Members Posts: 916 Joined: 20-June 06 From: Bend, OR Member No.: 6,265 Region Association: Pacific Northwest |
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| jasons |
Sep 16 2008, 05:08 PM
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#5
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Jackstand Extraordinaire Group: Members Posts: 2,002 Joined: 19-August 04 From: Scottsdale, AZ Member No.: 2,573 Region Association: None |
I (IMG:style_emoticons/default/wub.gif) DJET! When its properly set up, it works great.
Outside of a stock motor though, I'll take Dellortos. |
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| jd74914 |
Sep 16 2008, 05:11 PM
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#6
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Its alive Group: Members Posts: 4,780 Joined: 16-February 04 From: CT Member No.: 1,659 Region Association: North East States |
My L-Jet car runs great. (IMG:style_emoticons/default/biggrin.gif)
On a side note, I'm too young to have tons of experience with carbs, so any warmed up thing I build will have PEFI on it. (IMG:style_emoticons/default/smile.gif) |
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| TheCabinetmaker |
Sep 16 2008, 05:57 PM
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#7
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Jeez, here we go again.
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| So.Cal.914 |
Sep 16 2008, 06:01 PM
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#8
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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 |
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| type47 |
Sep 16 2008, 06:07 PM
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#9
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
FI because it was factory installed
FI because it is more modern than carbs FI because it's more efficient IMHO |
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| toon1 |
Sep 16 2008, 06:11 PM
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#10
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
FI is better unless you like carbs, then carbs. are better (IMG:style_emoticons/default/dry.gif)
Personally, I'm on the no carb. diet. Try the search from the link's above, this discussion has been beat to death. |
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| So.Cal.914 |
Sep 16 2008, 06:14 PM
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#11
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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 |
Carbs because they sound Great. (IMG:style_emoticons/default/smile.gif)
Carbs because it gives better low end. (IMG:style_emoticons/default/smile.gif) Aaaaaaand, Carbs because the POS FI kept breaking down and leaving me stranded all over Hells Acre. (IMG:style_emoticons/default/mad.gif) IMHO (IMG:style_emoticons/default/biggrin.gif) |
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| Todd Enlund |
Sep 16 2008, 06:28 PM
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#12
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Resident Photoshop Guru Group: Members Posts: 3,251 Joined: 24-August 07 From: Laurelhurst (Portland), Oregon Member No.: 8,032 Region Association: Pacific Northwest |
I voted FI because it is infinitely more tunable. You didn't specify stock FI or aftermarket... FI offers better MPG, better power, better driveability, all in the same tune. Carbs you pretty much need to decided how you want the car to run, and you'll sacrifice somewhat in other areas.
But, I plan on using 44 IDFs on my 2258. In my case, they will cost about 10% of what a comparable FI system would cost me. Maybe somewhere down the road, I will switch to FI, but it will be pretty low on my priority list. |
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| r_towle |
Sep 16 2008, 06:34 PM
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#13
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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I would say this.
Preface...I have a Djet and and Ljet car. For simple drive and go, the stock FI is fine, once you troubleshoot it and replace any worn parts. Unfortunately the TPS and MPS are NLA...say that three times fast. The can be tuned and can be modified for larger motors, but you really need to have your wits about you to make it work...it simple, but fubar if you change the wrong thing in the motor. Carbs are way more flexible, but you suffer from poor mileage and they run like crap for the first 10 minutes. Modern FI would be my choice, something with an O2 sensor and a feedback loop to monitor the system.. It really amazes me how much HP these modern cars get from the modern FI system...its just much better technology overall. Rich |
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| EyeTrip |
Sep 16 2008, 06:52 PM
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#14
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Member Group: Members Posts: 104 Joined: 29-May 07 From: Camas, Wa Member No.: 7,767 Region Association: None |
Love the sound of dual webers
Once setup, carbs are more reliable than the 40yr 1st gen injection Very clean install over injection Now, I would like to megasqirt a 1911. I think that would be fun. |
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| dbgriffith75 |
Sep 16 2008, 06:53 PM
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#15
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TheGrif Group: Members Posts: 509 Joined: 25-July 07 From: Iowa, USA Member No.: 7,945 Region Association: Upper MidWest |
QUOTE Unfortunately the TPS and MPS are NLA...say that three times fast. the TPS and MPS are NLA! the TPS and MPS are NLA! the TPS and MPS are NLA! mwa ha ha... I accept your challenge and await your rebuttle! (IMG:style_emoticons/default/biggrin.gif) |
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| EyeTrip |
Sep 16 2008, 06:54 PM
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#16
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Member Group: Members Posts: 104 Joined: 29-May 07 From: Camas, Wa Member No.: 7,767 Region Association: None |
QUOTE(r_towle @ Sep 16 2008, 05:34 PM) Modern FI would be my choice, something with an O2 sensor and a feedback loop to monitor the system.. It really amazes me how much HP these modern cars get from the modern FI system...its just much better technology overall. Rich I agree 100% |
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| azbill |
Sep 16 2008, 07:00 PM
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#17
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Member Group: Members Posts: 455 Joined: 26-July 04 From: Glendale, Az Member No.: 2,403 Region Association: Southwest Region |
FI is the way to go. I'm running the Emerald M3D ECU with Jennvey throttle bodies other then the noise form the Jennveys the system is great. It took awhile to get ECU programmed but once it was set it is fantastic.
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| Bleyseng |
Sep 16 2008, 07:25 PM
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#18
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Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
QUOTE(EyeTrip @ Sep 16 2008, 05:52 PM) Love the sound of dual webers Once setup, carbs are more reliable than the 40yr 1st gen injection Very clean install over injection Now, I would like to megasqirt a 1911. I think that would be fun. Love that sound? cuz thats all you can hear carbs are soo loud. I have a CD player and like to listen to music driving not that sucking sound. Once setup? yep, and then they go out of sync again and again. Clean? Stock FI is really clean and reliable as its still going strong. Low end power? Bow to FI as it has better low end power. Tuneable? Bolt on the stock parts and its tuned or if you have a 2056 w/ mild cam adjust the MPS and forget about it. Plus you can get 30mpg with Djet / Ljet and FI has built in altitude adjustment for those up into the mountain road days. In 1999 I went back to djet pulling the 40 dells and have never looked back, never been broke down by the side of the road either with djet. Carbs? several times...and they are sitting on the shelf gathering dust... Attached image(s) 
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| scotty b |
Sep 16 2008, 07:30 PM
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#19
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rust free you say ? Group: Members Posts: 16,375 Joined: 7-January 05 From: richmond, Va. Member No.: 3,419 Region Association: None |
QUOTE(So.Cal.914 @ Sep 16 2008, 04:01 PM) God I hope that's just drool on that filter lid (IMG:style_emoticons/default/blink.gif) |
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| TheCabinetmaker |
Sep 16 2008, 08:20 PM
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#20
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I drive my car everyday Group: Members Posts: 8,300 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
QUOTE(Bleyseng @ Sep 16 2008, 08:25 PM) QUOTE(EyeTrip @ Sep 16 2008, 05:52 PM) Love the sound of dual webers Once setup, carbs are more reliable than the 40yr 1st gen injection Very clean install over injection Now, I would like to megasqirt a 1911. I think that would be fun. Love that sound? cuz thats all you can hear carbs are soo loud. I have a CD player and like to listen to music driving not that sucking sound. Once setup? yep, and then they go out of sync again and again. Clean? Stock FI is really clean and reliable as its still going strong. Low end power? Bow to FI as it has better low end power. Tuneable? Bolt on the stock parts and its tuned or if you have a 2056 w/ mild cam adjust the MPS and forget about it. Plus you can get 30mpg with Djet / Ljet and FI has built in altitude adjustment for those up into the mountain road days. In 1999 I went back to djet pulling the 40 dells and have never looked back, never been broke down by the side of the road either with djet. Carbs? several times...and they are sitting on the shelf gathering dust... (IMG:style_emoticons/default/agree.gif) 100% |
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