Why EFI?, maybe excellence was expected and they came as close as they could.. |
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Why EFI?, maybe excellence was expected and they came as close as they could.. |
Gunn1 |
Jun 12 2016, 06:24 PM
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#61
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Senior Member Group: Members Posts: 1,021 Joined: 14-February 16 From: Minnesota Member No.: 19,670 Region Association: None |
Yes ladies and gentlemen, we have a (IMG:style_emoticons/default/sheeplove.gif) (IMG:style_emoticons/default/driving-girl.gif) (IMG:style_emoticons/default/stromberg.gif) (IMG:style_emoticons/default/stirthepot.gif) in our midst. This guy ping'd the Troll meter on his first post. Confirmed here. I wont give it the dignity or a response other than (IMG:style_emoticons/default/bootyshake.gif) (IMG:style_emoticons/default/bootyshake.gif) (IMG:style_emoticons/default/lol-2.gif) (IMG:style_emoticons/default/av-943.gif) And your a senior Member? Must have some erectile dysfunction issues... (IMG:style_emoticons/default/sheeplove.gif) He,he,he,he |
0396 |
Jun 12 2016, 07:08 PM
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#62
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Advanced Member Group: Members Posts: 2,046 Joined: 13-October 03 From: L.A. Calif Member No.: 1,245 Region Association: Southern California |
Oh no, another senseless tread from the expert that joined in 2016.
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Amphicar770 |
Jun 12 2016, 07:10 PM
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#63
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Senior Member Group: Members Posts: 1,188 Joined: 20-April 10 From: PA, USA Member No.: 11,639 Region Association: MidAtlantic Region |
Oh, OU812. As the judge probably told you when he issued a restraining order on behalf of your ex ....
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Gunn1 |
Jun 12 2016, 07:12 PM
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#64
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Senior Member Group: Members Posts: 1,021 Joined: 14-February 16 From: Minnesota Member No.: 19,670 Region Association: None |
I feel like Trump
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Amphicar770 |
Jun 12 2016, 07:17 PM
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#65
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Senior Member Group: Members Posts: 1,188 Joined: 20-April 10 From: PA, USA Member No.: 11,639 Region Association: MidAtlantic Region |
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Gunn1 |
Jun 12 2016, 07:18 PM
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#66
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Senior Member Group: Members Posts: 1,021 Joined: 14-February 16 From: Minnesota Member No.: 19,670 Region Association: None |
Oh no, another senseless tread from the expert that joined in 2016. Must be a senior member thing....never proclaimed that I was a expert, I'm not, that much is clear. I admit it..... Although I got a lot of useful info from some of the group so I guess I got that going for me. |
ConeDodger |
Jun 12 2016, 09:22 PM
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#67
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Apex killer! Group: Members Posts: 23,569 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California |
Yes ladies and gentlemen, we have a (IMG:style_emoticons/default/sheeplove.gif) (IMG:style_emoticons/default/driving-girl.gif) (IMG:style_emoticons/default/stromberg.gif) (IMG:style_emoticons/default/stirthepot.gif) in our midst. This guy ping'd the Troll meter on his first post. Confirmed here. I wont give it the dignity or a response other than (IMG:style_emoticons/default/bootyshake.gif) (IMG:style_emoticons/default/bootyshake.gif) (IMG:style_emoticons/default/lol-2.gif) (IMG:style_emoticons/default/av-943.gif) And your a senior Member? Must have some erectile dysfunction issues... (IMG:style_emoticons/default/sheeplove.gif) *you're* (IMG:style_emoticons/default/blink.gif) |
914Mike |
Jun 12 2016, 09:48 PM
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#68
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Member Group: Members Posts: 330 Joined: 27-January 03 From: San Jose, CA Member No.: 198 |
... In a street car I don't give a poop what you claim (IMG:style_emoticons/default/bs.gif) your HP numbers are, torque is king. Which is why I no longer have any fun in an ICE car. Hasta be electric, where the torque maxes out a zero RPM... (IMG:style_emoticons/default/piratenanner.gif) |
theleschyouknow |
Jun 12 2016, 10:06 PM
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#69
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Senior Member Group: Members Posts: 523 Joined: 4-June 13 From: Texas Member No.: 15,967 Region Association: None |
Been reading on different types of fuel delivery systems and their pro and cons. Many of the Guru's (about 5 to 1) prefer carburation. With this being the case, why Did Porsche I would like to keep my car stock with the factory EFI, but increasingly getting more difficult to do with so little information backing it up. fixed it for ya you catch more flies with sugar than with vinegar (IMG:style_emoticons/default/beerchug.gif) cjl |
JamesM |
Jun 12 2016, 10:16 PM
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#70
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Senior Member Group: Members Posts: 1,891 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
Did Porsche eff up? Been reading on different types of fuel delivery systems and their pro and cons. Many of the Guru's (about 5 to 1) prefer carburation. With this being the case, Did Porsche mess up when they went the EFI route with the 914? WHY DID THEY DO IT????? I would like to keep my car stock with the factory EFI, but increasingly getting more difficult to do with so little information backing it up. They may "prefer" carbs but it doesn't make them better. Most likely they are preferred because old schoolers understand them and they are easier to work on and tune performance mods around. Porsche did it because on a production car fuel injection is better in every possible way. |
Rand |
Jun 12 2016, 10:29 PM
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#71
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Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
...
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Gunn1 |
Jun 13 2016, 07:09 AM
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#72
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Senior Member Group: Members Posts: 1,021 Joined: 14-February 16 From: Minnesota Member No.: 19,670 Region Association: None |
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Darren C |
Jun 13 2016, 07:42 AM
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#73
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Member Group: Members Posts: 392 Joined: 26-December 14 From: Chichester UK Member No.: 18,255 Region Association: England |
Sitting on the fence watching this thread unfold, it just seems to be another differing opinion of ego’s with little or no hard facts displayed in this thread (albeit the facts are numerous and available elsewhere on 914 world).
It’s unfortunately this type of thread that clogs up the ease at which I’ve been able to seek out useful and meaning information on this site. The net result is that I simply go and find out for myself rather than trying to wade through all the opinionated drivel. My latest task was to see what happens when you fit carbs to a 2.0L FI stock engine. The only way I know how to get hard facts (rather than opinion) was to go do it, and get the car on a Dyno. I spent a whole day on the dyno, did 12 runs with various jet settings (increasing in steps of 5) and graphed Air Fuel ratio, torque and Horsepower through the rev ranges. For clarity the 12 graph overlays have been thinned out to 3 runs showing a fuel band where best driveability v jet range was found. Interpret this data as you will, it shows the pros and cons of fitting carbs over the whole rev ranges. It’s not heated opinion its hard fact. (IMG:http://www.914world.com/bbs2/uploads_offsite/i265.photobucket.com-18255-1465825340.1.jpg) This information is worth far more than the 4 pages that proceed my post. |
GregAmy |
Jun 13 2016, 07:44 AM
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#74
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Advanced Member Group: Members Posts: 2,270 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States |
The D-Jet in my '74 2L is not terrible, and is preferable in many ways. And in fact, the general design is damned close to what is being installed on new cars today. It simply suffers from being 40+-yr-old component technology.
Within the context of 1974 (1974, dude), I'd suggest it was a very forward-thinking, modern design. Given the motivation (and cash), I'd toss a bigger throttle body on the car with a better TPS, a better MAP sensor, a modern tunable ECU (Megasquirt), and get rid of the four-decades-old wiring. Hell, I'd even toss a catalytic converter on the thing and see if I could tune it not only for driveability and power, but for emissions as well. Carbs are a whole different kettle of fish (I'm re-learning them on my race car project) but you just can't beat the turn-the-key-and-go of electronic fuel injection. Learn it, love it, live it...I suggest EFI will eventually catch on in the modern marketplace... |
Gunn1 |
Jun 13 2016, 08:12 AM
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#75
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Senior Member Group: Members Posts: 1,021 Joined: 14-February 16 From: Minnesota Member No.: 19,670 Region Association: None |
Sitting on the fence watching this thread unfold, it just seems to be another differing opinion of ego’s with little or no hard facts displayed in this thread (albeit the facts are numerous and available elsewhere on 914 world). It’s unfortunately this type of thread that clogs up the ease at which I’ve been able to seek out useful and meaning information on this site. The net result is that I simply go and find out for myself rather than trying to wade through all the opinionated drivel. My latest task was to see what happens when you fit carbs to a 2.0L FI stock engine. The only way I know how to get hard facts (rather than opinion) was to go do it, and get the car on a Dyno. I spent a whole day on the dyno, did 12 runs with various jet settings (increasing in steps of 5) and graphed Air Fuel ratio, torque and Horsepower through the rev ranges. For clarity the 12 graph overlays have been thinned out to 3 runs showing a fuel band where best driveability v jet range was found. Interpret this data as you will, it shows the pros and cons of fitting carbs over the whole rev ranges. It’s not heated opinion its hard fact. (IMG:http://www.914world.com/bbs2/uploads_offsite/i265.photobucket.com-18255-1465825340.1.jpg) This information is worth far more than the 4 pages that proceed my post. I thank you for the comments and data |
JFJ914 |
Jun 13 2016, 08:55 AM
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#76
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Senior Member Group: Benefactors Posts: 813 Joined: 13-June 03 From: Alpharetta, GA Member No.: 814 Region Association: South East States |
Wow, 4 pages and no one states the obvious! PORSCHE had nothing to do with the engine or the fuel injection. It's a VOLKSWAGEN Typ 4 from stem to stern, top to bottom straight from the VW parts bin to the Karmann factory. It never spent a second at Porsche. In fact, the car with the exception of the -6's never saw the Porsche factory. If you look carefully at the ID plate it says VW Typ 47. Rant over.
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JeffBowlsby |
Jun 13 2016, 09:07 AM
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#77
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914 Wiring Harnesses Group: Members Posts: 8,485 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
This information is worth far more than the 4 pages that proceed my post. (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/first.gif) (IMG:style_emoticons/default/aktion035.gif) Bravo, that is awesome info. Fuel delivery can only do so much to develop power, irregardless of the delivery method. |
Darren C |
Jun 13 2016, 09:20 AM
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#78
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Member Group: Members Posts: 392 Joined: 26-December 14 From: Chichester UK Member No.: 18,255 Region Association: England |
Thanks Jeff.
Now I throw out the challenge to someone running a stock 2.0L with FI (NOT MODIFIED) in any way and running well, to go do a dyno run and post a print out of HP v AFR and we can all see the differences between Carb & FI in black & white once and for all. |
JeffBowlsby |
Jun 13 2016, 09:27 AM
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#79
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914 Wiring Harnesses Group: Members Posts: 8,485 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Here is a summary of the factory specs:
Attached image(s) |
dlkawashima |
Jun 13 2016, 09:28 AM
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#80
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914 Guru Group: Members Posts: 9,749 Joined: 1-October 10 From: San Jose Member No.: 12,234 Region Association: Northern California |
Wow, 4 pages and no one states the obvious! PORSCHE had nothing to do with the engine or the fuel injection. It's a VOLKSWAGEN Typ 4 from stem to stern, top to bottom straight from the VW parts bin to the Karmann factory. It never spent a second at Porsche. In fact, the car with the exception of the -6's never saw the Porsche factory. If you look carefully at the ID plate it says VW Typ 47. Rant over. Quote from Hans Mezger, who oversaw engine development for Porsche back in the day ... (IMG:http://www.914world.com/bbs2/uploads/post-1623-1260895029.jpg) |
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