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> Today, my 914 ia a little less "Progressive", ...and it shows no sign of stopping!
flipb
post Jan 5 2011, 08:36 PM
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Picked up my '74 2.0 this evening after getting a new set of EMPI 40mm's in place of the Weber Progressive that was on there when I bought the car last year.

Wow. It's like a different car.

I was expecting a little better throttle response and less gurgling/flooding, but here's what I found:
No gurgling or stumbling at all... big difference there.
Instantaneous throttle response
Quicker throttle take-up - I think the cable has less play than before. This is the biggest change and one I'll have to adjust to... I found myself revving to 3K RPM to get rolling in 1st gear. Got to get used to a softer touch.
Smoother running at idle and throughout the rev band
Big difference in sound.... this one I wasn't expecting. With the single Weber, there was a lot of burping, popping, etc, sounded pretty mean. Now it's got a deeper, throatier, smoother howl. Didn't touch the exhaust, but I swear there's a big difference in the sound. Can also hear the carbs sucking air at times.

All of this is more impressive since I was driving home in 30-something degrees. The Weber carb had major issues with cold temps, due to fuel condensing in the intake runners.

My mechanic also changed the trans fluid.

So far I've only driven it ~10 miles on a scenic drive home from the shop. Hope I get another drive this week, although they're predicting snow... which means heavily salted roads. (IMG:style_emoticons/default/sad.gif)

Oh, and here's my "ask":
My mechanic had a very hard time getting the carbs dialed in. It's running rich right now, but he said the engine doesn't seem to like when he leans it out. Can others please share tuning/setup/jet sizing/etc. tips for my setup? It's new EMPI 40mm carbs on a stock 2.0 motor, for street use.

Much obliged, and happy (IMG:style_emoticons/default/driving.gif)
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sean_v8_914
post Jan 6 2011, 09:14 AM
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ps. winter tuning may be too rich in teh summer
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flipb   Today, my 914 ia a little less "Progressive"   Jan 5 2011, 08:36 PM
Joe Sharp   The cars like to run a little rich, helps to keep...   Jan 6 2011, 03:51 AM
Gint   :agree: My dual Weber 2056 runs a little fat and ...   Jan 6 2011, 05:50 AM
BarberDave   :trophy: You will love it , I felt mine wa...   Jan 6 2011, 06:34 AM
flipb   P.S. If you don.t have them allready get so...   Jan 6 2011, 07:47 AM
Root_Werks   P.S. If you don.t have them allready get s...   Jan 6 2011, 05:38 PM
flipb   After bringing her home last night, I figured she ...   Jan 6 2011, 07:51 AM
Vacca Rabite   If I top off the brake reservoir, is it safe to b...   Jan 6 2011, 08:24 AM
Woody   The fuel enrichment valves have a tendency to stic...   Jan 6 2011, 08:57 AM
sean_v8_914   what is a "fuel enrichment valve"? how ...   Jan 6 2011, 09:13 AM
sean_v8_914   ps. winter tuning may be too rich in teh summer   Jan 6 2011, 09:14 AM
yeahmag   Damn... Just got back from Fairfax Station, VA. I ...   Jan 6 2011, 12:00 PM
flipb   Damn... Just got back from Fairfax Station, VA. I...   Jan 6 2011, 12:11 PM
zymurgist   Damn... Just got back from Fairfax Station, VA. I...   Jan 6 2011, 03:06 PM
type47   Damn... Just got back from Fairfax Station, VA. I...   Jan 6 2011, 04:26 PM
914rat   Damn... Just got back from Fairfax Station, VA. ...   Jan 7 2011, 04:03 PM
flipb   [quote name='type47' post='1414391' date='Jan 6 2...   Jan 7 2011, 06:57 PM
yeahmag   No other mods needed... If the car felt "hard...   Jan 6 2011, 12:12 PM
Vacca Rabite   Its possible that the PO put one of the el-cheapo ...   Jan 6 2011, 12:37 PM
Vacca Rabite   It could also be somehting as easy as a split boot...   Jan 6 2011, 12:38 PM
flipb   It could also be somehting as easy as a split boo...   Jan 6 2011, 12:44 PM
Vacca Rabite   From the look of things before I left my house th...   Jan 6 2011, 01:50 PM
flipb   From the look of things before I left my house t...   Jan 6 2011, 01:58 PM
underthetire   :agree: With that much I would expect no pedal le...   Jan 6 2011, 01:56 PM
r_towle   First the carbs. Find out what jetting you have on...   Jan 6 2011, 07:21 PM
Spoke   you cant own one of these cars without jack stand...   Jan 6 2011, 09:16 PM
geniusanthony   I' m in alexandria on belvoir. Definately in f...   Jan 7 2011, 09:22 PM
type47   There are informal Porsche gatherings for "br...   Jan 8 2011, 09:23 AM


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