carb set up |
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carb set up |
porsche-tom |
May 24 2016, 06:41 AM
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#1
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Member Group: Members Posts: 140 Joined: 7-March 13 From: jensen beach fl Member No.: 15,626 Region Association: None |
hello i have a 72 1.7 with a shitty single carb set up now, i dont have the old injection set up so im going to stick with carbs. what is the best carb set up???? empi dual 40 IDF, anybody running these? are weber 34ITC better? any info would be nice. thank you
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JFG |
May 24 2016, 12:40 PM
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#2
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Senior Member Group: Members Posts: 686 Joined: 7-April 16 From: Wales Member No.: 19,869 Region Association: None |
In the same bpat here. I have 40 idfs to put on mty 1.7.
If you wanted to change back to injection i have the manifolds / injectors and throttle body off my engine. |
porsche-tom |
May 24 2016, 05:05 PM
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#3
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Member Group: Members Posts: 140 Joined: 7-March 13 From: jensen beach fl Member No.: 15,626 Region Association: None |
I think for the moment I'm going to stick with carbs. (IMG:style_emoticons/default/beerchug.gif) . Do you think 44s will be too much for a stock 1.7?
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rhodyguy |
May 24 2016, 06:32 PM
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#4
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,075 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Yes. Way too much carb. If you buy new carbs and everything that goes with the 'package' you're going to spend way north of $800.
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somd914 |
May 24 2016, 07:00 PM
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#5
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Member Group: Members Posts: 1,171 Joined: 21-February 11 From: Southern Maryland Member No.: 12,741 Region Association: MidAtlantic Region |
Agree 44's are too large. Also, to really run correctly you will need a cam that supports carbs, I'll bet all the PO did was remove the D-Jet and add the single carb.
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Hine62 |
May 24 2016, 08:47 PM
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#6
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Member Group: Members Posts: 132 Joined: 4-October 12 From: Binghamton, NY Member No.: 15,000 Region Association: None |
I have 34s on my 1.8L. It runs fine with a SVDA distributor. After I got it setup there was a lot of tweeking done, but overall it runs fine. The throttle setup that came with the carbs needs to adjusted once in a while. My pre summer routine includes throttle adjustment, vacuum sync between carbs, and timing. Plus lifter adjustment, oil leak checks, etc.. I also changed the jets to get a better mixture.
The plan is to go to 40s soon plus a new carb cam... |
r_towle |
May 24 2016, 08:56 PM
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#7
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
If you want carbs, go with,40mm IDF carbs so you can find parts as you change your motor etc. also, better resale. 44 are too big, 34 are difficult to get all the right parts for a type 4...
The venturis and jets can be purchased at lots of places, I have found aircooled.net to be the best, friendly, and helpful group. Rich |
zambezi |
May 25 2016, 08:14 AM
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#8
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Senior Member Group: Members Posts: 711 Joined: 14-April 08 From: Lafayette, LA Member No.: 8,920 Region Association: South East States |
Dellorto DRLA 36's or Weber 40 IDF's for stock motor. I prefer Dellorto, they run smoother and need less tinkering, but I have used Webers with success also.
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porsche-tom |
May 25 2016, 09:29 AM
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#9
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Member Group: Members Posts: 140 Joined: 7-March 13 From: jensen beach fl Member No.: 15,626 Region Association: None |
auto atlanta has empi40s for around 600 and weber 40s for around 900. i think empi owns weber is the name worth an exta 300$??
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rhodyguy |
May 25 2016, 10:17 AM
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#10
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,075 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
It's Well documented that the 'new' empis have issues fresh out of the box. Were those prices linkage included? Intake manifolds? Filter assemblies? It adds up quickly.
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porsche-tom |
May 25 2016, 11:51 AM
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#11
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Member Group: Members Posts: 140 Joined: 7-March 13 From: jensen beach fl Member No.: 15,626 Region Association: None |
yes all of it is included
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r_towle |
May 25 2016, 11:57 AM
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#12
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
You would be better off going to CBperformance or redline Webber to buy your carbs.
Also, aircooled.net is really helpful, knows the 914, helps with jets etc....so if you buy the kit from them, you will be up and running sooner with phone support if needed. Rich |
porsche-tom |
May 25 2016, 12:55 PM
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#13
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Member Group: Members Posts: 140 Joined: 7-March 13 From: jensen beach fl Member No.: 15,626 Region Association: None |
good info thanks. anybody have input on this camshaft to go along with bigger carbs? http://www.autoatlanta.com/Porsche-Scatcam...PN-RMIS137.html
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r_towle |
May 25 2016, 02:46 PM
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#14
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Elgin Camshafts
Webcamshafts Those are two sources that manufacture Camshafts for our cars and will offer phone support for the product they produce. |
Gunn1 |
May 25 2016, 03:43 PM
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#15
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Senior Member Group: Members Posts: 1,021 Joined: 14-February 16 From: Minnesota Member No.: 19,670 Region Association: None |
If you want carbs, go with,40mm IDF carbs so you can find parts as you change your motor etc. also, better resale. 44 are too big, 34 are difficult to get all the right parts for a type 4... The venturis and jets can be purchased at lots of places, I have found aircooled.net to be the best, friendly, and helpful group. Rich How about a set of Vintage Solex carbs (like these) |
DBCooper |
May 25 2016, 05:48 PM
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#16
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14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
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BK911 |
May 26 2016, 06:04 AM
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#17
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Senior Member Group: Members Posts: 672 Joined: 19-February 04 From: Rocky Top, TN Member No.: 1,674 Region Association: None |
I installed the empi hpmx 40s on my stock 1.7 about three years ago.
Adjusted float heights, verified vents and jetting, cleaned them up, and then vroom vroom!! Like them so much just put a set on a bug. |
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