Reply With Quotewanna sell yours or swap for all efi gear plus cash stanza?
Carbs dont go out of tune
My car starts, everytime first time
Not all ecu's have cold start, mircotech and etc hasnt.
Can easly re jet to tune for upgrades, under 10mins all the jets can be changed.
The cost of the Aftermarket ecu alone is more then a good carb set up.
wanna sell yours or swap for all efi gear plus cash stanza?
ive got twin 40mm webers on my 4age runs awesome loud induction and good power
I have twin 40s on a mild 5K. Runs sweet as, starts first go and runs fine. Only has a lower idle when the motor is "really" cold, but apart from that it is great. Drive-ability is not an issue with them, as I use mine as a daily no problems. Carbs will cost still a fair amount of money to jet properly as each particular engine of different. If you run dellortos (most DHLAs) they will be a little harder/more expensive to set up as opposed to Webers for engines <1800cc due to a fixed size with the air bleeds in the idle circuit. This is easy enoguh to fix, but will cost a bit more money. In short, no carbs will not be cheaper to set up unless you know someone to do them for you, or can do them yourself.
Dont let this swing your decision but....Carb induction rules!
Carbs tromp ITBs on a mild 4AGE. I've got Mikuni 44's on my 4AG and it runs smooth as. People who tell you they go out of tune just say that because they heard everyone else say it, 99% of the time they have never tried carbs. However there is more involved than simply bolting a set of Webers or Dellortos onto a 4AG, not so much with Mikunis.
Firstly Alfa, Lancia etc had emulsion tubes sepcially created from factory for their own engines and also many of these carbs have got weird progression drillings suited the the original motors which makes tuning a nightmare. The best option is to buy off the shelf carbs, whether it be brand new or used.
The best option of the lot is just to buy Mikuni PHH40 or 44's, for the simple reason that the japs took and italian design and made it 100 times simpler and better.
its tru ppl allways tell me go efi u get more power out of it bullshit if u tune them right and u have the correct setup u will munch and efi. my car starts up straight away but i have n an idling issue due to my rediculously big cams lol got sum bigger idler jets but yeh carbs the way to go
Last edited by fatke; 2nd April 2009 at 07:14 PM.
carbs do out of tune in time, quads are sick though, also newer technology, cheaper and with aftermarket comp you'd make some great power out of the engine with em
My take on carbs and ITBs is this:
Carbs only have one jetting. (well 2 including idle till ~1500rpm) So on a small little revvy 4age, obviously jets will need to be big enough to maintain a good fuel flow as not to lean out in higher revs. So, in low revs, once off the idle circuit, it will be a little bit sluggish as the mixture will be a little bit richer, but come 3500-4000 it takes off. From there, performance wise they will be essentially the same as ITBs as twins on a 4cylinder engine is that, a throttle for each cylinder, each with its own mixture. That being said, it is still no problem at all with daily town driving. Maybe you might have a small over-fuelling problem if you have some ridiculous cams but I doubt that.
Though, with ITBs I guess being injected, means that you have the ecu controlling fuel to the cylinder through out the entire rev range. So, leaner mixture to compensate for low revs, but then once opened up, can richen up to cope for higher revs.
I could be wrong, but if anyone else can add info, go for it
Very helpful thread. i just brought myself a set of ITB's for smallport...i can't wait to put it on. Anyone has 101 quads on smallport can share their thoughts? thanks
is there not a tech thread on ae101 ITB's to 4age 16v?
i can't find one
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