 Swapping to carbs |
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| boxstr |
 Apr 10 2014, 10:35 PM
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#1
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MEMBER:PACIFIC NORTHWEST REGION  Group: Members Posts: 7,522 Joined: 25-December 02 From: OREGON Member No.: 12 Region Association: Pacific Northwest  |
Have a 1975 1.8 with 2.0 heads, being used as a street driver. Want to install complete carb kits. What are people using?
I will install a 009 distributor, mechanical fuel pump. Looking for ideas. I've seen the Empi 40 and 44 kits on the Samba. Thanks Craig at CAMP |
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| r3dplanet |
Apr 10 2014, 11:12 PM
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Senior Member Group: Members Posts: 679 Joined: 3-September 05 From: Portland, Oregon Member No.: 4,741 Region Association: None |
Hi there.
First up, skip the 009. The distributor that came with the 1.8 is perfect for carbs. Second, use a rotary electric fuel pump like this one: http://www.cbperformance.com/ProductDetail...roductCode=3193 Third, you'll probably want Weber IDF 40 or Dellorto DRLA 36 carbs, like these which include intakes: http://www.cbperformance.com/ProductDetail...roductCode=6410 Some say that getting a older pair of Italian-made Weber 40 carburetors and rebuilding them are the better way to go. -marcus |
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| ClayPerrine |
Apr 11 2014, 05:39 AM
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#3
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Life's been good to me so far..... Group: Admin Posts: 15,541 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
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If the motor has a stock cam in it, then you will not be gaining anything by removing the fuel injection. The stock injection is designed for the motor, the carbs are a compromise. Your performance will drop, and you will get lousy gas mileage.
Now it becomes a whole different story if you have changed the cam. I recommend you get the fuel injection working correctly and drive it the way it is. |
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| Mark Henry |
Apr 11 2014, 06:35 AM
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#4
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(ClayPerrine @ Apr 11 2014, 07:39 AM)  If the motor has a stock cam in it, then you will not be gaining anything by removing the fuel injection. The stock injection is designed for the motor, the carbs are a compromise. Your performance will drop, and you will get lousy gas mileage. Now it becomes a whole different story if you have changed the cam. I recommend you get the fuel injection working correctly and drive it the way it is. If you read the whole post a 1.8 with 2.0 heads is going to need a bastardized FI system to start with.... |
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| 7275914911 |
Apr 11 2014, 06:43 AM
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#5
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Hummmm!!! Group: Members Posts: 756 Joined: 7-May 08 From: Mid-South Member No.: 9,028 Region Association: South East States
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From personal experience w/40idf's on a stock 1.8 IF you ditch the HE for headers there WILL be a seat of the pants difference in performance...
Good Luck... |
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| rhodyguy |
Apr 11 2014, 07:16 AM
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#6
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,098 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
the carb set craig is looking into is the Empi HPMX flavor. same as mike blizzard fought and had to return.
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| malcolm2 |
Apr 11 2014, 07:18 AM
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#7
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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QUOTE(Mark Henry @ Apr 11 2014, 07:35 AM) If you read the whole post a 1.8 with 2.0 heads is going to need a bastardized FI system to start with.... Mark, Can you explain more about the bastardization? I may have bastardized mine and called it something different. I have 1.8 heads with 2.0 size valves, L-jet, stock disty, 1911 cc and I like the way it runs. I don't have anything to compare it to, but I like the bastard, if that is what I have... (IMG:style_emoticons/default/shades.gif) |
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| ChrisFoley |
Apr 11 2014, 07:51 AM
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#8
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I am Tangerine Racing Group: Members Posts: 7,937 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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He's referring to the runners for 2 liter FI not lining up with the 1.8L FI plenum.
However, longer hoses to connect them are not difficult to make using silicone hose and hose clamps. |
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| malcolm2 |
Apr 11 2014, 08:15 AM
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#9
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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QUOTE(Racer Chris @ Apr 11 2014, 08:51 AM) He's referring to the runners for 2 liter FI not lining up with the 1.8L FI plenum. However, longer hoses to connect them are not difficult to make using silicone hose and hose clamps. OK, I certainly did not have to worry about that. I tweeked my AFM to get my Air/Fuel ratio fine tuned via the AFM adjustment but that is it. Regardless, I approve of the way it is running, so I must have done something right..... BTW Chris will you ship my CV joints today? Clark |
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| ChrisFoley |
Apr 11 2014, 10:02 AM
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#10
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I am Tangerine Racing Group: Members Posts: 7,937 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None
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QUOTE(malcolm2 @ Apr 11 2014, 09:15 AM) BTW Chris will you ship my CV joints today? I'm planning to. (IMG:style_emoticons/default/smile.gif) |
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| 914werke |
Apr 11 2014, 12:16 PM
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#11
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"I got blisters on me fingers" Group: Members Posts: 10,157 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest
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Craig dont know if this is a (FI) problem seeking a solution or (IMG:style_emoticons/default/confused24.gif)
But both L-Jet & D-jet will run that motor parts combo. I did a 1911 with 2.0 heads & Djet that with some MPS tweaking by Geoff & his LM1 kit ran REALLY well. |
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| PotterPorsche |
Apr 11 2014, 01:01 PM
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#12
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Member Group: Members Posts: 295 Joined: 10-November 13 From: Hayward CA Member No.: 16,628 Region Association: None |
I like 36 dellorto's with the update kit , If your ever going to build a bigger engine 40 dellortos. Black line racing can rebuild any carbs you find. My brother runs webers both 40 and 44
http://www.blacklineracing.net/ |
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| dirk9141973 |
Apr 11 2014, 03:08 PM
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#13
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Unregistered |
QUOTE(PotterPorsche @ Apr 11 2014, 12:01 PM) I like 36 dellorto's with the update kit , If your ever going to build a bigger engine 40 dellortos. Black line racing can rebuild any carbs you find. My brother runs webers both 40 and 44 http://www.blacklineracing.net/ I have been satisfied with Empi 40 on my 2056 engine with magna spark II distributor |
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| Mark Henry |
Apr 11 2014, 03:16 PM
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#14
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(Racer Chris @ Apr 11 2014, 09:51 AM) He's referring to the runners for 2 liter FI not lining up with the 1.8L FI plenum. However, longer hoses to connect them are not difficult to make using silicone hose and hose clamps. Yep, thanks Chris, a bastardized FI system will work, I was just referring to the logic of why he needs/wants carbs (IMG:style_emoticons/default/shades.gif) If it was me I agree that with a stock cam I would try to make a FI system work. That is if I had had one handy. |
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