who's got a weber on a sierra

[NIK]

Dan I asked the question on zuwharrie and got mixed results. Oiling filters better but have to clean more often but Sarge commented take it off and look in the carb for any signs of dirt/dust. He runs it dry without a prob and mine to stays clean, maybe something to do with hieght?? Plus I try not to go where it is real dusty and if I do its slow because no top or doors + dust sucks.
Nik

[NIK]

Brendan how is your weber going? Have yo pulled the top of yet Im dying to see how the diverter is set up and what jets its running.
Nik

[MightyMouse]

I run an oiled precleaner and its scarry how much dust/dirt it traps. I thin the foam element oil with petrol and spray it on - means it doesn't get too thick and "claggy".

Seems to be a good compromise so far, the main filter lasts much longer and picks up the really fine stuff.

If pressure drop is a concern with an oiled filter you can always go for a larger one.

Good aircleaners are a great investment for long engine life.

[Jaffa]

Weber is great, Ive been real busy and only taken the car out once, but it ran great, ran perfectly up hills, down hill its fine 90% of the time it only when its really steep that it idles lower/spluters, but giving it a little throttle and its fine. It even runs with the car on it side as I found out Havn't taken the top off yet but I'll be sure to take lots of pics when I do

[NIK]

Thanks mate good to here its running good for you.
Nik

[cossie1]

Hi from a Suzuki noob. Anyways, I have a holley 180 (the webber 32/36 equivalent) that I want to put on my 1.6 Vitara.

I was told by carb specialist here in Sydney that the Holley/Webber carb is actually SMALLER than the Mikuni carb and performance will be WORSE. Is there any truth in this?

I'm totally new to tuning carbs, so its all new to me. Is there any workshops in Sydney that you could guide me to that has done this conversion?

Thanks in anticipation.

[NIK]

If it is a 180 Holley (knock off of Webers 32/36) it is a big improvement in flow rate over stock. Some can flow up to 300cfm which is more than a stock 1300 can use! I normally get the "thats of a 2lt motor that will never run on a motor that small" then try asking them for bigger jets they go mental. So now I only shop where they know what they are talking about. I spent an hour today talking to the guys at a performance shop about the affects of changing air jets after a carb rebuild shop told me they make no difference.
What Im saying is find someone who knows what they are talking about.
I run a 32/36 on my 1600 and Ive upped the jetting from the 2lt jets and it runs great but Im going to come back slightly to get better economy, another benifit of webers you can drive all day on the primary only but if you want that little bit more open up the secondaries and hold on!
If you go for it make sure you set the float correctly 41mm for brass and 35mm for plastic and allow about 2mm float drop as this will help stop it flooding off road. If you get serious you should seal and re vent the bowl.
Read this thread and the other one floating around on here heaps of good info.
Nik

[cossie1]

thanks for that, I forgot to say that it is actually for a 1600 (Vitara). The 'specialist' told me that using a Holley 180 will be better for a 1300cc, but actually a step backwards for a 1600. NIK, it looks like you've proven them wrong

can anyone recommend a vitara or even a carb specialist that has expierence with these conversions?

[NIK]

I have a 8v vit 1600 in my zuk with a 32/36. I played with the jetting today and it really gets up and goes alot of fun to drive. Is it a d/d are you competent with spanners or know someone that is as its not that hard to do once you do some research.
Pm me if you want or go over to www.zuwharrie.com and read EVERYTHING by Sarge you,ll be sold on it.
Nik

[lefthand]

Weber is great, Ive been real busy and only taken the car out once, but it ran great, ran perfectly up hills, down hill its fine 90% of the time it only when its really steep that it idles lower/spluters, but giving it a little throttle and its fine. It even runs with the car on it side as I found out Havn't taken the top off yet but I'll be sure to take lots of pics when I do

Glad to hear it's running well for you. Share some pics soon; I'd really like to see it.

[NIK]

Hey lefthand another one looking for clues? You do know that the Greek meaning of sinister is left hand?
Nik

[Danzo]

http://www.outerlimits4x4.com/phpBB2/vi ... p?t=127121

[lefthand]

Hey lefthand another one looking for clues? You do know that the Greek meaning of sinister is left hand?
Nik

of course i do. my grandmother used to try and force me to use my right hand. she swore it was evil.

anyhow, i was just curious to see how his build is coming along; that was my intake and carb setup. i ended up with a FI motor and chose to go that route instead of the carb.

[NIK]

So do you have any pics of the internals? The prob Im having is fuel is pouring out the aux vents before its on an steep enough angle to even worry about the breather tube
( P.S. I only know the meaning as Im a lefty to and get told all the time )
Nik

[Jaffa]

G'day Lance there is a few pics in my build thread here ---> http://www.outerlimits4x4.com/phpBB2/vi ... ?p=1230089

[lefthand]

So do you have any pics of the internals? The prob Im having is fuel is pouring out the aux vents before its on an steep enough angle to even worry about the breather tube
( P.S. I only know the meaning as Im a lefty to and get told all the time )
Nik

not sure if this what you're looking for but, maybe these will help.

[NIK]

Thanks Lefthand that gives me a few ideas but Im chasing a pic of it with the top off to get a better idea how the fuel is "diverted"
While we are talking webers again Ive done alot of testing and when Im crawling it runs great on very steep rocks but if I try to power up it uses fuel quicker than its going in. I have a electric pump not sure of brand but talking to a guy in the club that also had carb trouble offroad try two different brands of pumps till he settled on a faucet?? brand somthing like 30 l/m and no more probs.
Nik

[11_evl]

will the 6cyl xe webber work on my 1.6 sierra??
if so, what jets and emmulsions can i use.
i need to set it up for beach for a few weeks than play around with it to do some hills and crawling
any info will be great
michael

[Kitika]

I had one of a 6cyl and i think it was a 40dfi...
WAY to big for the 1.3 had no power under 2500 rpm basically and couldnt tune it because it was so big(pretty sure the 40dfi was made for ~140hp motors). But i think some falcons had a weber 34??? I've heard they'll work ok on a zook.

[NIK]

Ive never used or seen the 34 but fromwhat Ive read they are afull pollution carb and not ideal. The 32/36 is the best balance of performance and economy but a 34 could be jetted to work I think B4T has one if he dosnt post maybe you could pm him for more info?
Nik

[11_evl]

this is the webber i just bought.
the venturiis are 35mm at the bottom, both primary and secondary are the same!
will it work with the same jets as used by nik and bft

[NIK]

On the base plate it will have stamped on it the model the second pic is too bright cant make it out. I have no experience with these but log onto www.zuwharrie.com and there will be posts about the 34 if thats what it is. sorry thats all I can do to help so far.
Nik

[11_evl]

34 ADM

[built4thrashing]

The 34ADM weber will work as well as the 32/36 but they are harder to mount as the base plate is thicker and not all adaptors work. 34ADMs have the benifit of having a fuel cutoff solenoid and electric choke as stock but these can be added easily to the 32/36. You will need to do the same mods to the 34 like sealing the fuel bowl and extending the breather. Jet setup should be very similar to the sierrabut not the same as it has different size throats.


Most of our work has been on the 32/36 so have a crack coz ya will never know if ya dont have a go.

B4T

[11_evl]

sweet as, just what i wanted to hear..
so if i use the settings below, that will be enough to get it running pretty good?? or because its the same size ports on both the jets should be the same side to side?

primary/ secondary

Idle 60/50
main 145/135
air 160/170
e-tubes F50/F50
aux venturies 3.5/4.5

[built4thrashing]

start with what you posted. should be colse. the thing with webers is everyone drives differently and what suits me may not suit NIK or you.

with these settings it should run ok. You dont set both throats the same as you need more fuel just on the primry as this is where most of ya driving will take place. secondaries are only really needed when "gettin right up it" which you will do coz the noise and extra power the weber gives you is adictive.


Good luck and welcome to the land of the Weber.

[NIK]

Those jets should get you going but you might need fine tuning, then again like bft said each is a little different.
I think the primary might be a bit rich but see how it goes.
Did you check zuwharrie?
Not sure how the 34 is on jets but with the 32/36 the sec main is smaller with the 4.5 aux as your is set up as the larger aux allows a greater floow of air/fuel mix the jets dont need to be as big. the f50 e tubes are the ones you need so thats right.
From reading the average is ti have the air jets 30points higher than the main and go up or down from there to lean or richen the mix.
The idle looks pretty close too let us know how it goes, p.s. dont waste your money on a pressure reg use the bypass method.
nik

[cossie1]

Well I got my carb fitted to my 1.6 Vitara (Holley 180 same as 32/36). The guy who fitted it was a carb specialist and I trust he put the correct jetting, so ...after driving for the past week I can say:

Negatives:
NO power increase in fact I may have lost a couple hp below 3000 rpm (using the seat of the pants dyno)
Slight loss of throttle response below 3200 rpm

Positives:
No hesitation at low speeds
Smoother idle
Less fuel consumption

In hindsight, I dont think I'd do it again or possibly start with a slightly larger carb.

Just my experience so far.

[cossie1]

secondaries are only really needed when "gettin right up it" which you will do coz the noise and extra power the weber gives you is adictive.


Good luck and welcome to the land of the Weber.

I actually have no differance in the sound of the carb.. I initally thought that the airfilter might be too small (redline) but I took off the air filter and went round the block and it made difference to the sound or performance. :(

[alien]

this is odd - as my weber made a HUGE increase in power... economy stayed the same, but i was driving it harder so you could say it improved =)

i'd check the jets and that its tuned spot on first...