Adjusting Carb for more power

[monmendoza]

Hey guys,

Anybody knows how to adjust a Feroza Carb to increase power?
I have 32" tires on my Feroza which I use for trailing. I want to
increase its power. Even a 5HP would be good enough and Its okay with me even if the fuel consumption increases. I already have installed a free flow intake, exhaust, extractors and free flowing exhaust.
Some recommend replacing the carb jet but I am not familiar with it.
Tia

[meece4x4]

Hey guys,

Anybody knows how to adjust a Feroza Carb to increase power?
I have 32" tires on my Feroza which I use for trailing. I want to
increase its power. Even a 5HP would be good enough and Its okay with me even if the fuel consumption increases. I already have installed a free flow intake, exhaust, extractors and free flowing exhaust.
Some recommend replacing the carb jet but I am not familiar with it.
Tia

dont know if playing with the carb jets will really do much, yep bigger jets mean more fuel .. however if your intake valves are standard, your heads and manifold are not polished all your going to do is flood your motor with fuel down low .. ie it will be more likely to bog out at low revs (not what you want with 32's on her and half way up a steep hill!

just as a matter of interest when you installed the freeflow exhuast did you remove the cat (is it legal in your country??) I removed the cat convertor from mine and that single mod gave me the most amount of power so far!

[nebivedu]

I have weber 32/36 carb on my feroza. With 235/75/15 i can still do 160 - 165km/h on highway (on GPS).

[meece4x4]

I have weber 32/36 carb on my feroza. With 235/75/15 i can still do 160 - 165km/h on highway (on GPS).

lol your bloody game taking a Fez to those speeds .. the problem is the 235x75x15 from memory come in @ around 29 1/2 inches (same as what im running) anything larger tyre wise *really* makes the Feroza's stuggle i put the 31" Firestone RMT's off my mates Zook on the Fez for a beach run once DID not like it one little bit.. spent most of the day crawling in 4wdlo cause she would just bog out in soft sand otherwise.

Have to admit tho the 32/36 DGV Weber is a dam good carb, used to run those on my mk III Cortina's, Capri's and even rejetted one to work (and worked well) on my old 1972 202 HQ Kingswood

[nebivedu]

That was just for testing, usualy i drive 90 od 100 km/h. At 160 the consumption of gasoline is 25l/100km, at 100km/h only 10l. And 1 litre of gasoline is in our country 1 euro, what is 1.86AUD.

[monmendoza]

just as a matter of interest when you installed the freeflow exhuast did you remove the cat (is it legal in your country??) I removed the cat convertor from mine and that single mod gave me the most amount of power so far!

Hello Meece,

Yes meece, I think the previous owner has already remove the cat converter as I don't see one under. I did replace the exhaust to a straight thorugh one.

May I know why another carb brand/model could increase the power of an engine while increase your carb jet to a bigger size won't? thank you.

[meece4x4]

just as a matter of interest when you installed the freeflow exhuast did you remove the cat (is it legal in your country??) I removed the cat convertor from mine and that single mod gave me the most amount of power so far!

Hello Meece,

Yes meece, I think the previous owner has already remove the cat converter as I don't see one under. I did replace the exhaust to a straight thorugh one.

May I know why another carb brand/model could increase the power of an engine while increase your carb jet to a bigger size won't? thank you.

because the weber 32/36 DGV carbs where designed for the ford 1600-2000cc 4cyl family of motors .. i was rejeting and modifying it to go onto a 3300cc 6cyl motor .. a lot bigger motor means it needed bigger jets, your current carb (or a 32/36) is already jetted for a 1600cc motor. the only advantage i could see with swapping the original Fez carb is the fact that the weber has a mechanical secondary throat wheres the Fez is/may be vacuum (and mines a EFI model so i cant zip out and take a look anyway MM will correct me if im wrong ) secondarys .. ive always found mechcanical secondarys to be "better" in terms of throttle response.

I spent *MANY MANY* year frigging around with carbs and performance tweeks when i was a young buck, used to race stockcars and was one of the original "boy racers" (bridge ported single dizzie 12A in a 1972 Mazda RX2, dam thing would be worth a fortune now ) Ive spent hours frigging around with jets in carbs trying to squeeze every last ounce of power out of a motor for the track, the amount of power you would gain from going up a jet size (and still having it drivable off road) prob wouldnt be worth the effort or expence of stripping the carb (would need a new gasket set at the very least)

oh and it's not a good idea to drill out your own jets i did that once and screwed the size up, ended up having to wait almost 2 weeks while i could find some new ones and get sent to me.

glad to see that youve got rid of the cat .. frigging horrible things.

[MightyMouse]

Repeat after me..... Injection is good, Carburetors are bad.

Meece, I refuse to even look in the manual for carb info, my last one was an IDA on a PP 13B - so that's awhile ago.

[meece4x4]

Repeat after me..... Injection is good, Carburetors are bad.

Meece, I refuse to even look in the manual for carb info, my last one was an IDA on a PP 13B - so that's awhile ago.

*drool* PPort'ed 13b

waarp ..waarp ..warrp ..waarp *sigh those where fun days*

anyhoo moving right along

[murcod]

Repeat after me..... Injection is good, Carburetors are bad.

Not "bad", that word isn't strong enough.... But it'll have to do short of swearing.

Although I've been driving for over 20 years I've only had the "pleasure" of owning one carby engined car. I was so glad when the timing belt snapped and lunched it- then I could drop in an EFI turbo engine without feeling guilty about wasting money!

Seriously, unless the new carby will flow more air (and your exhaust system can too) I think you'd be wasting your time doing any mods to a carby engine. Better off just fitting extractors and converting to an electric thermofan IMHO. Leave the carby alone as pumping in more fuel won't gain you more power unless there's something wrong with the mixtures.