71 1.7 correct Weber Duals Options

[WestTX914]

Hi, All I just got my first 914 after wanting one as long as I can remember. The guy I bought the car fro (IMG:style_emoticons/default/smash.gif) m put a Holly 2bbl on in place of FI. To say the least I'm quite disappointed in the performance on take off. I was originally a VW guy so I know a 1.7l isn't a rocket ship but this Holley sucks. I'm going to replace the single with a pair of Webers but I don't know what size to use. The car has a fresh motor that has a performance cam the heads are stock and she's got a dual Monza type exhaust. Ultimately the dual Monza will be replaced with a single Bursch single tip. unless otherwise suggested. What would ya'll recommend for performance, drivability, and dependability?? 40, 44, 48 IDA IDF Thanks in advance for any help ya'll can provide. Mike

[rick 918-S]

(IMG:style_emoticons/default/welcome.png) Maybe comb the classifieds for a F.I. setup.

[Dave_Darling]

The "performance cam" won't play well with the stock FI.

Weber 40s or Dell 36es are probably the way to go.

--DD

[thelogo]

Hi, All I just got my first 914 after wanting one as long as I can remember. The guy I bought the car fro (IMG:style_emoticons/default/smash.gif) m put a Holly 2bbl on in place of FI. To say the least I'm quite disappointed in the performance on take off. I was originally a VW guy so I know a 1.7l isn't a rocket ship but this Holley sucks. I'm going to replace the single with a pair of Webers but I don't know what size to use. The car has a fresh motor that has a performance cam the heads are stock and she's got a dual Monza type exhaust. Ultimately the dual Monza will be replaced with a single Bursch single tip. unless otherwise suggested. What would ya'll recommend for performance, drivability, and dependability?? 40, 44, 48 IDA IDF Thanks in advance for any help ya'll can provide. Mike

Be smart about this , think about what kind if driveability your going for

On off.style power driving, loud and shifty gas mileage= weber 40,s

Better drivabiluty decent mpg and good all around power ,with smoother transition =, Dell's 36 , best of both worlds

Best mileage tunability , quiet , simply , reliable. Modest power gain ,least expensive ,best for street applications,good cold start character , = baby single throat dual webbers , 32:s I think ??????


Best all that stuff listed above combined ,

Stock f.I , aka.divinci work.of art , it does it all and makes it look easy ,
Adjusts to air density and altitude automatically ,

Carbs can never compete imho!!!!

Shout out to the cheapbsob

[thelogo]

Hi, All I just got my first 914 after wanting one as long as I can remember. The guy I bought the car fro (IMG:style_emoticons/default/smash.gif) m put a Holly 2bbl on in place of FI. To say the least I'm quite disappointed in the performance on take off. I was originally a VW guy so I know a 1.7l isn't a rocket ship but this Holley sucks. I'm going to replace the single with a pair of Webers but I don't know what size to use. The car has a fresh motor that has a performance cam the heads are stock and she's got a dual Monza type exhaust. Ultimately the dual Monza will be replaced with a single Bursch single tip. unless otherwise suggested. What would ya'll recommend for performance, drivability, and dependability?? 40, 44, 48 IDA IDF Thanks in advance for any help ya'll can provide. Mike

Be smart about this , think about what kind if driveability your going for

But if the legends are true.about the myth acial,
Bosch.volks waggen rabbit f,I injection system being able to run the 914

Then I think.that's the hot setup myself , but just my 2cents

[WestTX914]

Thanks for the replies thus far What I've taken from the comments is the original FI would be the best route but otherwise max Web 40's. FI is greek to me so I'm almost positive I'll go with the carbs. I'm figuring $6-700 for the carbs could I replace the FI for the same amount or get an aftermarket System for comparable $$$? I assume 44 or 48's are just to much for the stock engine? I was under the impression tat the original FI was not very reliable but as I said this is my first venture into 914 world? thanks again for all the feedback. Mike

[WestTX914]

Thanks for the replies thus far What I've taken from the comments is the original FI would be the best route but otherwise max Web 40's. FI is greek to me so I'm almost positive I'll go with the carbs. I'm figuring $6-700 for the carbs could I replace the FI for the same amount or get an aftermarket System for comparable $$$? I assume 44 or 48's are just to much for the stock engine? I was under the impression tat the original FI was not very reliable but as I said this is my first venture into 914 world? thanks again for all the feedback. Mike

[billh1963]

Wouldn't something like a nice pair of Weber 34(36)'s be more appropriate on a 1.7?

I would think 40's are better suited for a 2.0?

[zambezi]

I think the 40's are the small webers. They come in 40, 44,48. The 34 ict's are the single barrel models. Dellorto comes in 36 40 45 and 48. Dellorto 34FRD's are the small single barrels.

[kevin311]

There are weber 36 IDFs out there. I have a pair on my car.
They are rare but they're out there.

[JamesM]

Thanks for the replies thus far What I've taken from the comments is the original FI would be the best route but otherwise max Web 40's. FI is greek to me so I'm almost positive I'll go with the carbs. I'm figuring $6-700 for the carbs could I replace the FI for the same amount or get an aftermarket System for comparable $$$? I assume 44 or 48's are just to much for the stock engine? I was under the impression tat the original FI was not very reliable but as I said this is my first venture into 914 world? thanks again for all the feedback. Mike

IFF the cam is stock then stock FI is the way to go and should be a lot less then 700 bucks. 1.7 stuff is dirt cheap, probably find the whole system for a couple hundred, but probably budget 400ish as you will probably need to find a correct fuel pump as well. Guessing the sort of person that uses a center mount carb isn't going to change the CAM, so you are probably safe.

Personally, I would get the stock injection and then swap the ECU for megasquirt, but if fuel injection is greek to you then this would be a HUGE step. This would still be easily under 700 bucks and would be the best possible solution if done right. Carbs are a compromise and a step back.

[mrholland2]

So, has anyone used two of the "crappy" two barrel progressives, the 32/36's? 32 for good mileage and then the option of kicking in the other throat for scoot. . just asking?

[euro911]

So, has anyone used two of the "crappy" two barrel progressives, the 32/36's? 32 for good mileage and then the option of kicking in the other throat for scoot. . just asking?

I'm pretty sure the Holley he has is a progressive 2bbl (Holley/Weber). I've seen Holley straight 2bbl on bugs way back when, but never on a T4.

[WestTX914]

the guy i bought it from did put a performance am in the motor when he rebuilt it. He went with the Holly because it was cheap and he didn't want the stock FI I think I'm decided on a set of Weber 40's as I imagine these will work well with the cam I know I'll lose some MPG but I really would like to fell a bit more power when I put the pedal down. I looked at the dellorto 36 but for the cost I can get the Weber 40 complete kit with intakes and linkage. I'm certain they will be a huge improvement over this POS Holly it sucks. Thanks and any other thoughts are appreciated. Mike

[type47]

... and any other thoughts are appreciated.

get it running and (IMG:style_emoticons/default/driving.gif) then work on fixing and improving. I think being able to drive your car will encourage you to learn about and improve your car.

[Bulldog9]

Would love a set of Dellorto's on my 2056 build. Where can these be found? I've had no luck and have settled on Weber 40's, but havent bought yet.

[WestTX914]

Oh she runs great I'm just disappointed in the Holley not to mention Webers look way cooler (IMG:style_emoticons/default/evilgrin.gif). she's real sluggish till about 2800rpm then she starts to roll. I guess that worst case scenario if the dual Web's are to much I can always sell them or swap for something different.Mike

[mrholland2]

That didn't answer my question

So, has anyone used two of the "crappy" two barrel progressives, the 32/36's? 32 for good mileage and then the option of kicking in the other throat for scoot. . just asking?

I'm pretty sure the Holley he has is a progressive 2bbl (Holley/Weber). I've seen Holley straight 2bbl on bugs way back when, but never on a T4.

[euro911]

Oops - I didn't see the TWO in your question (IMG:style_emoticons/default/blink.gif)

I haven't seen anyone do it, but, if two of them were mounted to separate properly designed intake manifolds with a shorter distance to the combustion chamber, they would work much better than the central manifold system typically utilized.

[JoeSharp]

I have seen dule holleys on a car and they worked really good. Had a center pull linkage and seemed to me it was a the best use of them I had ever seen.