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Albertoprop17
Samba Member
Joined: March 15, 2016
Posts: 196
Location: Valencia (Spain)
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 Posted: Thu Jan 19, 2017 4:43 am Post subject: 36 IDF jetting? |
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Hi, I'm buiding a 1600 dual port engine and I have dual weber 36 IDF, does anyone know for "the best" jetting for these engine/carbs?
Greetings from Spain
Alberto |
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earthquake
Samba Member
Joined: January 10, 2008
Posts: 3984
Location: SANDY VALLEY, NEVADA
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| Posted: Fri Jan 20, 2017 1:23 am Post subject: Re: 36 IDF jetting? |
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I don't think 36mm IDF's were ever imported into the US, I think they were intended for use on Fiat's and Alfa's. They have slightly different progression holes [5 instead of 4] then 40-44-48mm IDFs that are for VW's. I have a set of 40 that are like that, they also have different linkage parts on the shafts that need to be converted to work on VW's, here is a link to my old post...
http://www.thesamba.com/vw/forum/viewtopic.php?t=468497&highlight=40mm+idf
Unfortunately Mark Harney does not hang out here any more and I never got his trick to make them work better.
I wish I could help more.
Casey
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[From a military recruitment poster in the novel "The Stainless Steel Rat" By Harry Harrison] |
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66brm
Samba Member
Joined: January 25, 2010
Posts: 3676
Location: Perth Western Australia
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| Posted: Fri Jan 20, 2017 4:37 am Post subject: Re: 36 IDF jetting? |
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With 28mm vents I start at 50 idle 180 air corrector, 115 main fuel with f11 emulsions at sea level assuming a stock 1600, if using a 009 set to 30 btdc, fine tune using plug readings. Mark used to solder up the air for the idle and redrill but the size eludes me now, but smaller than factory and bigger than the later three port 40 idf's
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| modok wrote: |
| I am an expert at fitting things in holes, been doing it a long time |
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Albertoprop17
Samba Member
Joined: March 15, 2016
Posts: 196
Location: Valencia (Spain)
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| Posted: Fri Jan 20, 2017 11:26 am Post subject: Re: 36 IDF jetting? |
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My engine is a stock 1600, but with lightened flywheel and balanced crankshaft whit the flywheel. The rods weigh exactly the same.
I'm going to put on it 1.4 ratio rockers, strong valve springs, csp linkage and a vintage speed exhaust:
http://shop.vintagespeed.com.tw/s.nl/it.A/id.7/.f
What will be the jetting combo for this engine?
I'm going to put all at the same time
Thanks |
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clearsurf2001
Samba Vaccinator
Joined: February 26, 2004
Posts: 1671
Location: Dave-AKA-fortyeye-Oceanside, Ca
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| Posted: Fri Jan 20, 2017 2:09 pm Post subject: Re: 36 IDF jetting? |
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| 66brm wrote: |
| With 28mm vents I start at 50 idle 180 air corrector, 115 main fuel with f11 emulsions at sea level assuming a stock 1600, if using a 009 set to 30 btdc, fine tune using plug readings. Mark used to solder up the air for the idle and redrill but the size eludes me now, but smaller than factory and bigger than the later three port 40 idf's |
Excellent starting point. Make sure your floats are set, carbs are spotless inside and out, and your fuel pressure is between 3-3.5 psi.
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| mharney wrote: |
I think Glenn has an EMPI crank in his engine. |
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