 40 or 44 IDF Webers, size matters |
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| 930cabman |
 Apr 14 2021, 05:00 PM
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Advanced Member  Group: Members Posts: 3,130 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States 
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We are converting a stock 2 liter 4 cyl from D jet to Webers. My gut is telling me a 40 IDF with 32mm venturis is the correct starting point. I am considering purchase of a complete set of 44 IDF's, but are unable to locate 32 mm venturis. Assuming 32MM venturis can be found are 44 IDF"s too large for a stock 2 liter?
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| VaccaRabite |
Apr 15 2021, 07:02 AM
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En Garde! Group: Admin Posts: 13,456 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
When I had my 2056 carbed I tried 44s and 40s.
The 44s had ALL the power in the top end. If I was racing, it would have been ideal. Car would hit readline and just KEEP GOING until I was floating valves. Not great for regular driving, but fun when I could open it up. 40s were a better mix, but did not have the same oomph that the 44s had. BUT I bet most of that was the defective gasket set I got that did not have all the jet holes punched and caused me to be fighting with the carbs so bad that I eventually went to EFI. That said, Microsquirt EFI has been the best. Zach |
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| 930cabman |
Apr 15 2021, 07:27 AM
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#3
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Advanced Member Group: Members Posts: 3,130 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States
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QUOTE(VaccaRabite @ Apr 15 2021, 07:02 AM)  When I had my 2056 carbed I tried 44s and 40s. The 44s had ALL the power in the top end. If I was racing, it would have been ideal. Car would hit readline and just KEEP GOING until I was floating valves. Not great for regular driving, but fun when I could open it up. 40s were a better mix, but did not have the same oomph that the 44s had. BUT I bet most of that was the defective gasket set I got that did not have all the jet holes punched and caused me to be fighting with the carbs so bad that I eventually went to EFI. That said, Microsquirt EFI has been the best. Zach I hear guys talking about Microsquirt EFI, but I have no knowledge of this system, sounds complex (expensive) |
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Posts in this topic
930cabman 40 or 44 IDF Webers Apr 14 2021, 05:00 PM
nditiz1 40 IDFs are best, but 44s will work if you choke t... Apr 14 2021, 05:11 PM barefoot Question: is the diameter air the manifold interf... Apr 14 2021, 05:17 PM johnhora 930cabman...
what's wrong with the stock D-Je... Apr 14 2021, 05:38 PM
930cabman
930cabman...
what's wrong with the stock D-J... Apr 14 2021, 06:06 PM brant
930cabman...
what's wrong with the stock D-... Apr 14 2021, 09:01 PM 930cabman
[quote name='930cabman' post='2908097' date='Apr ... Apr 15 2021, 05:02 AM Superhawk996
When operating correctly the Bosch system is far ... Apr 15 2021, 05:42 AM brant
1985 Alfa spider, maybe it was L jet, but very si... Apr 15 2021, 08:58 AM roblav1 At what what RPM is max HP? I'll take a swag ... Apr 14 2021, 06:15 PM 930cabman This is a stock 2 liter 4 cylinder engine. my gut ... Apr 14 2021, 06:19 PM roblav1 My 5800 rpm swag was off. My 914 spec says max hp... Apr 14 2021, 06:27 PM 930cabman
My 5800 rpm swag was off. My 914 spec says max h... Apr 14 2021, 06:40 PM type2man I would run 44 Webers. Personally I run 45 dells o... Apr 14 2021, 06:36 PM IronHillRestorations You want 40's. With that engine the vacuum si... Apr 14 2021, 07:11 PM Root_Werks
You want 40's. With that engine the vacuum s... Apr 15 2021, 09:29 AM johnhora OK so you have:
Stock 2.0L type 4 with stock FI ca... Apr 14 2021, 07:20 PM johnhora CB Performance's Bob Tomlinson's' book... Apr 14 2021, 07:29 PM 930cabman For me, it comes down to simple.
Bolt on carbs, ... Apr 15 2021, 05:46 AM nditiz1 Simplicity for me too. I worked with the black ma... Apr 15 2021, 06:11 AM Racer I ran 40's on a "stock" 1.7 and the ... Apr 15 2021, 07:50 AM Tdskip For 90% of your driving throttle response matters ... Apr 15 2021, 08:26 AM ClayPerrine I am on the side of Fuel Injection.
I have run ... Apr 15 2021, 12:19 PM 930cabman It's looking like D jet might be winning.
Fi... Apr 15 2021, 12:49 PM 930cabman I committed to D jet, sending the ECU to Module Ex... Apr 16 2021, 01:08 PM ClayPerrine
I committed to D jet, sending the ECU to Module E... Apr 16 2021, 01:11 PM 930cabman
I committed to D jet, sending the ECU to Module ... Apr 16 2021, 03:08 PM bbrock
I committed to D jet, sending the ECU to Module E... Apr 16 2021, 01:52 PM Superhawk996
I committed to D jet, sending the ECU to Module E... Apr 17 2021, 08:13 AM bbrock I've gotten the impression from reading variou... Apr 17 2021, 08:36 AM Superhawk996
I've gotten the impression from reading vario... Apr 17 2021, 08:52 AM 930cabman Yes, I have gathered the same, these rarely fail, ... Apr 17 2021, 01:05 PM stownsen914 I didn't read the whole thread, but my experie... Apr 17 2021, 04:48 PM 930cabman
I didn't read the whole thread, but my experi... Apr 17 2021, 05:21 PM |
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