carburator on a ka24de

[Flamereka]

Didn't on one of the truck model ka24de engine come with a carb? Wouldn't it be alot easier to use a carb then injectors?

[penguinmafia]

from what I know, the carb came on the early ka24e's, but they went to FI like in the late 80's.

[Top Speed Coupe]

a carb is good for nothingtake a corner hard=float empty=stallcold out=very hard start

The list can got on that is why they invented Fuel Injection.NOw if you get 4 Individual Throttle Bodies...That will give you serious power...The Oulsar GTi-R comes with that...

[TrunkMonkey]

a carb is good for nothingtake a corner hard=float empty=stallcold out=very hard start

side draft carburetors can be tuned to operate just as well, and sometimes better than, a fuel injected system, and have none of the symptoms that you list here.

-demetrius

[Dattebayo]

demetrius that sounds like a cool project. Hey tell me would it get comparable gas mileage and whats the ability for future mods on the side draft system?

[TrunkMonkey]

Hey tell me would it get comparable gas mileage and whats the ability for future mods on the side draft system?

do you have a couple of weeks to learn? the initail tuning is not easy, especially if you know nothing about carburetors. if you're really interested, do some research. the best thing to do is find someone who has had experience with them and try to get some hands on training.

-demetrius

[jmillheiser]

having an air/fuel meter helps when jetting carbs in high performance apps.

on a KA (or other nissan 4 banger) sidedrafts could work nicely.

i know that the datsun roadsters from the late 60s used a mikuni knock-off of the stromberg SU so side drafts have been used on nissans.

on a KA the weber DCOE sidedraft 2 barrels could work nicely.

on a 2.4L engine you would want 2 of em probably 45-48mm size with fairly big vents. luckily with dual 2bbls on a 4banger you can jet them quite lean since your getting 1 bbl per cylinder basicly.

i have seen dual 2bbl setups on other 4 cylinders make 200+hp and still return 35+mpg on watercooled engines. and 150+hp and 25-35 mpg on aircooled engines (aircooled engines need more gas than watercooled engines and run hotter which explains the power loss + the most commonly modded aircooled engine *the aircooled VW engine* has a restrictive head design which requires tons of porting and huge valves to get decent power gains)

[themadscientist]

In this day and age to voluntarily run carburettors for any other reason than nostalgia or some class racing rule is just needless frustration. Learning to tune them is truly an art form and for those of you who can do it I have a great deal of respect for you. A properly tuned FI system will outperform all but the most expertly tuned carb system in any comparison you care to make. The cooling effect of the fuel in the manifold runners from a carb setup is a benefit but substantially offset by the fact that carbs are difficult to set, balance and keep them in that state. The minute the barometer or thermometer move in any direction you are back under the hood with a carb balancer and a box of jets. FI is programmable, repeatable and adaptable. It compensates for changing air quality and suffers none of the shortcomings of carbs. There is a reason all the old L carb-fueled Zs come out to the race spot an hour before everyone, they have to change all the settings from last week because it is 10 degrees colder tonight! I have an open mind but I cannot get on board with this. sports injection bodies, oh most definately but carbs, no way.

[jmillheiser]

despite my previous statement. he is right. on your car you are better off sticking with your EFI.

carbs are fine on an older car but EFI IS BETTER.

the only reason why you dont see a lot of carb to EFI conversions on older cars is COST. buying a whole EFI system is not cheap.

BTW a dual 2bbl setup is not cheap. cheap ones run $600 or soits still cheaper than an EFI setup on an older car but its not worth it to ditch your EFI for it.

of cousre if you were sticking that engine into a 510 thats a different story.

most of your larger 2bbls do make a cool sound when you get on it.

[themadscientist]

I have a L on the shop floor with a 45mm carb manifold on it. When the rebuild is done it is getting a triple 45mm sports injection setup run by a SDS fuel computer, I can't wait! look i'm getting the shakes! Oh, wait, I forgot to take my pill!

[hotshot240sx]

all i gotta say...KA24E in a datsun 1200 with carbs...runs 14 flat....and thats just carbs...so i plan to do the same..its a nice horse power jump...

[themadscientist]

I see stroker carbed out Zs catch GT-Rs every thursday but the Z guys get maybee four good runs and spend the rest of the time with the hood up changing the jets and balancing the carbs. EFI is it, carbs are old news. My L3.1 will when I have it done have all the advantages of a set of bog bore sidedrafts with none of the disadvantages. It's your car and you will do what you will but to do it the hard way for no reason seems silly.http://www.twminduction.com/Home/Home-FR.htmltake a look and weigh the options

[TrunkMonkey]

carbs are for the die hard all motor old school guys (like me!). nothing in the world sounds better than a set of well tuned side drafts. if anyone is serious about it, then i suggest saving some dough and buying a set of mikuni 44mm sidedrafts. mikunis are notorious for staying in tune longer than any other carb out there. a friend of mine used to have a 240Z with mikunis, and he said that as long as there wasn't a drastic change in weather, he could go a couple of months without touching them.

-demetrius

[themadscientist]

If you are going to do it, do it! 50mm webers! ever heard a set of those? Usually the last thing you hear before the Z leaves you in the dust! I am intimately familiar with it, still have the ego-scars:(

[jmillheiser]

50 sidedrafts:D there would be more carb noise than exhaust noise:D

biggest webers ive ever seen were 62mm IDAs. but of cousre IDAs are downdraft (they are popular with the VW and porsche crowd since you use downdrafts on a boxer engine)

[themadscientist]

50 sidedrafts:D there would be more carb noise than exhaust noise:D

biggest webers ive ever seen were 62mm IDAs. but of cousre IDAs are downdraft (they are popular with the VW and porsche crowd since you use downdrafts on a boxer engine)

Exactly! When you nail the throttle there is a massive sucking sound and a split second later the motor revs. Under full throttle you can hear both the carbs and the exhuast. Sports injectoin bodies sound the same and TWM makes 55mm ones, lead me not into temptation Visa card! screw throttle response!

[jmillheiser]

too much fun;)

who said old school imports had to be slow.

heck import drag racing has been around since at least the 70's in the US (even seen a VW bug with its front wheels 3 feet in the air:D)

[Dattebayo]

yeah wahts wrong with being under the hood for a small tuner anyway thats all part of the enjoyment of the sport. If you dont want to be under your hood whats the point of even racing??? There is nothing more that i love than taking care of my engine and i could definately go carb without too much schooling. I have worked on efi and carb systems even though im not a subject of tuning. What one does with a computer and sensors the other does with vacuum lines. big deal... And all you *****s who dont even touch carb better take a note cause you havn't come close to what the sport of performance truly is.

[Movingviolation240]

Umm the Nasport racecar is a '98 240 bodied fullblown tube'd out road race beast. It runs carbs. 280 all motor HP with carbs. Nobody's been able to get within 50+hp of that number with fuel injection.

But I havn't seen it for the KA24DE, just the E and from what I hear it's a ***** to find the parts to put it together.

Paul

[Dattebayo]

holy cow man 280? thats insane and i had no idea you could even come close to that with the sohc wow! Hey i got a couple weeks to learn, i pick this stuff up pretty quick, so learn me some. Anyone got a number or site where i can get some books on that?

[TrunkMonkey]

good luck. it's going to take you alot longer than a couple of weeks to learn what it takes to build an engine like that. those guys running nasport aren't going to give any info on their set up. you can get rebello to build you a high horsepower carbed KA, but they're not going to tell you how they did either.

-demetrius

[C-Kwik]

Umm the Nasport racecar is a '98 240 bodied fullblown tube'd out road race beast. It runs carbs. 280 all motor HP with carbs. Nobody's been able to get within 50+hp of that number with fuel injection.

But I havn't seen it for the KA24DE, just the E and from what I hear it's a ***** to find the parts to put it together.

Paul

NASPORT KA's are also full race engines that are far from streetable. I believe they rev to about 8500 RPM. Very expensive to build a KA to do that. And they use rather large tolerances so the engines would not last very long on the street. I doubt you'ld enjoy the 3000 RPM idle either. I have no doubts a FI system can achieve similar or even better results if the motor itself was built the same. Build a individual TB system and you'll have the same benefits of a sidedraft carb set-up with more precise fuel delivery. And nobody can get that close to the NASPORT KA's because it's too expensive. Since rules do not allow FI, noone will use it in a race series and noone will put down that kind of money without some kind of purpose to it.

[Dattebayo]

alright fine but carbs are something i just got into recently (had to work on a friends old prelude si) and im not putting the idea down cause it should be something that everyone should learn. I dont care because its something different from what joe blow is doing and thats why i choose n/a from turbos in the first place. It'll be fun anyway.

[themadscientist]

yeah wahts wrong with being under the hood for a small tuner anyway thats all part of the enjoyment of the sport. If you dont want to be under your hood whats the point of even racing??? There is nothing more that i love than taking care of my engine and i could definately go carb without too much schooling. I have worked on efi and carb systems even though im not a subject of tuning. What one does with a computer and sensors the other does with vacuum lines. big deal... And all you *****s who dont even touch carb better take a note cause you havn't come close to what the sport of performance truly is.

I like taking care of my car too, but I like to work smarter not harder. Your argument for carbs as the only choice "for a true tuner", relegating EFI users as a lesser breed of clean fingered key punchers is rather assanine.I can put a tight group in the black at 500 yards with the M16 using only Iron sights. Now if a guy steps up with a scope on his and shoots a tighter group than me does that make him less of a marksman than I because he used a "girlie scope" where as I used "the true shooters iron sights"?If I misread your position please clarify.Carbs have one advantage over EFI and that is the cooling effect of the fuel droplets in the intake runners which is a wonderful thing on a properly tuned setup. Beyond that carbs are obsolete and needlessly fussy methods of fuel delivery.

If you simply must have them go ahead, enjoy. Be sure to carry your carb balancer and a tacklebox full of jets just in case the weather changes, I'll take my laptop.

[Voodoo]

hahahaha...

Trying to find an intake manifold for sidedraft carbing a KA24DE is next to impossible...

I want this...



Now....where did I put the $2500.....????

[I am Technoman]

Man those t-bodies would look "sexie" under my hood!

<---is dreaming.....

[jmillheiser]

a carbed honda. what are you trying to do to your friends carbed honda.

every carbed honda ive seen (im talking cars not bikes) has some tiny *** emissions choked carb that is only adequte for a stocker. S600 excepted of cousre but if i remember it used a motorcycle engine and chain drive.

pretty much all of the honda info ive seen on the various model years seems to say that the carbed models are not suited to performance mods (probably because nobody makes manifolds to take weber or mikuni 2bbls for hondas)

you should have seen the 240Z i found for sale today.

72 Z, L28 swapped in with cam, header, but strangely enough a holley 4bbl. very fast and high revving engine that barely idles:D. perfect:D

[I am Technoman]

a carbed honda. what are you trying to do to your friends carbed honda.

Who has a Honda?

[jmillheiser]

ok so maybe there are a few carb kits out there for hondas.

just looked on pierce manifolds site http://www.webercarburetor.com

they have a dual 40DCOE kit for D series carbed engines (i.e. early CRX and pre EF civic) and strangley enough the make the same kit for a D16 and B16/18 integra. why anybody would want carbs on a B-series honda engine i dont know but they have em.

all they had for the lude/accord was a 32/36 progressive kit.

of course they also have a triple 40DCOE kit for the 240,260,280Z too:D