 Tuning dual Webers, Looking for input in the PNW |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| TC 914-8 |
 Dec 8 2011, 09:53 PM
Post
#1
|
|
Senior Member  Group: Members Posts: 840 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest 
 |
I just found out my wifes coworker, The Dr Vet's husband, has a 75 2.0 with a dual Weber downdraft conversion. I stopped by last weekend to take a look. it has some minor electrical issues which I should be able to sort out fairly quick with proper diagnostics. Horn, lights etc..
One of his main concerns is mis firing and sputtering during acceleration. It is a fairly clean set up bought from a guy in Bremerton back in 2000. I forgot his name but should be active on this site. so under slight acceleration, reving the engine it sputters around 2500 RPM. with no gauges or tools I noticed the F/A screws on the driverside carb were out different ratios. I gave them a slight adjustment and it seemed to help. I figure we need a air flow meter to put over each venturi and dial in each barrel evenly. (IMG:style_emoticons/default/idea.gif) Being a V-8 guy I would slap on a vaccume gauge and adj from there.... I did not see any vacume ports so its all new to me (IMG:style_emoticons/default/confused24.gif) How do you boys dial these babys in? I was also under the impression a stock FI cam is not really compatible running carbs... (IMG:style_emoticons/default/confused24.gif) Shoot me some ideas , once I get him running, I will have a new teener buddy in the neighborhood to tool around with since you Teener Tuesday boys are afraid of coming accross on the ferry (IMG:style_emoticons/default/poke.gif) |
   |
 
|
  |
Replies
| TC 914-8 |
Dec 9 2011, 09:09 PM
Post
#2
|
|
Senior Member Group: Members Posts: 840 Joined: 23-May 08 From: Sequim, WA Member No.: 9,090 Region Association: Pacific Northwest
|
Wow, thanks guys for all the input, I like the Carb-o-tune with 4 inputs I'll pass on the info to the owner see if he'll spring for one or a Snail.
He did ask me about putting the FI back in, at that point its getting a V-8. When I have time next week the first thing is taking it for Troy's Italian tune up!!! I'll keep ya'll posted how things go, along with his new screen name when he joins the World. (IMG:style_emoticons/default/beerchug.gif) |
|
|
|
Posts in this topic
TC 914-8 Tuning dual Webers Dec 8 2011, 09:53 PM
Ductech I would start with thinking about how long this ca... Dec 8 2011, 10:06 PM
TC 914-8
I would start with thinking about how long this c... Dec 8 2011, 11:52 PM Ductech Some people used old sync gauges that would go ove... Dec 8 2011, 11:59 PM nathansnathan
Some people used old sync gauges that would go ov... Dec 9 2011, 09:40 AM mrbubblehead i use a snail for synchronizing and an innovate ai... Dec 9 2011, 12:07 AM jaxdream Don't forget to adjust the valves before synci... Dec 9 2011, 08:42 AM rdauenhauer and there is the old standby...ditch the carbs ... Dec 9 2011, 09:51 AM stownsen914 Cars that haven't been run much can obviously ... Dec 9 2011, 11:22 AM stownsen914 Oops duplicate post Dec 9 2011, 11:25 AM messix Have I not taught you any thing?
Go give it an I... Dec 9 2011, 11:36 AM J P Stein There are a number of things that could be causing... Dec 9 2011, 11:50 AM pt_700 slightly ot but, i had an old mechanic friend once... Dec 9 2011, 12:48 PM a914622 Hey i have a snail syncer i could let you use to s... Dec 9 2011, 10:36 PM mrbubblehead
Just a thought but i rigged a vacuum line back o... Dec 9 2011, 10:55 PM TC 914-8
Hey i have a snail syncer i could let you use to ... Dec 10 2011, 01:05 AM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 13th March 2026 - 09:55 AM |
Invision Power Board
v9.1.4 © 2026 IPS, Inc.