carb for ka24e
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lovenismo
- Posts: 85
- Joined: Tue Mar 16, 2004 6:49 pm
- Car: 1989 240sx Coupe - Stolen and Totaled (R.I.P.)
carb for ka24e
Really soon Ill be the proud owner of a 70 510. My choice for a powerplant is to build a carburated ka24e like the one available from courtesy nissan. Who knows about this setup like what power can I expect and how will the motor behave differently. My goal is to build an all motor screamer with about 210rwhp. What am I looking at with this conversion?
Re: (nab911)
Carbs aren't better than EFI. They are basically glorified toilet bowls. Seriously. EFI has a much greater accuracy and atomization, which means better performance. Carbs are preferred by a lot of tuners for ease of tuning. People like what they are familiar with, hence oldschool guys preferring carbs.
As for Devious, he's been really busy with work lately. Don't know when he'll check here next. I don't have pics of his setup, but picture mine on a nicer, shorter mani.
As for Devious, he's been really busy with work lately. Don't know when he'll check here next. I don't have pics of his setup, but picture mine on a nicer, shorter mani.
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deviousKA
- Posts: 1355
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- Car: 90 240sx NA /72 Datsun 510 NA /86 corolla GTS NA
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Re: carb for ka24e (lovenismo)
sidedraft carb setup on ka24 can produce great hp gains. These arent your grandpa's carburetors, unless your grandpa is hardcore. The highest HP NA ka24e and ka24de that i know ofboth use sidedraft weber dcoe carbs as of now.
The advantage of ITB injection is the ability to give optimum fueling in a wider range than sidedrafts. Carb tuning is a bit more peaky in optimum fueling.
A good set of sidedrafts and manifold are going to cost a good chunk of cash, your looking at about 1000 for a complete running setup. With itb you have the freedom to create your own parts and utilize a lot of different components, depending on your creativity can be done much cheaper than carb setup and allow for more changes at will. ITB efi setups are also ligther-weight, and can be cleaner overall.
If your planning a setup in your datsun 510, carbs are a good option. You wont need to retrofit the car to high pressure pumps and full efi harness. Vacuum advance ignition setups is easy way to go for spark, these parts can be sourced from various datsuns. Id say keep both sidedraft carb setup and itb efi in mind as you look around for components. I know where to get ka24e nissan motorsports carb manifolds if your interested in one of those.
The advantage of ITB injection is the ability to give optimum fueling in a wider range than sidedrafts. Carb tuning is a bit more peaky in optimum fueling.
A good set of sidedrafts and manifold are going to cost a good chunk of cash, your looking at about 1000 for a complete running setup. With itb you have the freedom to create your own parts and utilize a lot of different components, depending on your creativity can be done much cheaper than carb setup and allow for more changes at will. ITB efi setups are also ligther-weight, and can be cleaner overall.
If your planning a setup in your datsun 510, carbs are a good option. You wont need to retrofit the car to high pressure pumps and full efi harness. Vacuum advance ignition setups is easy way to go for spark, these parts can be sourced from various datsuns. Id say keep both sidedraft carb setup and itb efi in mind as you look around for components. I know where to get ka24e nissan motorsports carb manifolds if your interested in one of those.
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justmerging
- Posts: 690
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- Car: 07 Versa SL w/CVT Cuz I'm lazy
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carbs simplify the whole car. think about how much wiring you could do away with. i've heard that the fully built gt3 NASPORT motors(what that setup was originally designed for) put out around 250 to the wheels. i also toyed with the idea of going with carbs, and i still might but finding those carbs are a PITA and they're not cheap either. MIKUNI stop production quite a few years ago and they are starting to get scarce.
Re: (justmerging)
yea, carbs simplify everything quite a bit. But there are other ways of simplifying things and still having EFI.
Case in point, here's 2 pics of my new engine harness for my MegaSquirt. This is the entire harness.
Case in point, here's 2 pics of my new engine harness for my MegaSquirt. This is the entire harness.
hey lovenismo,
just spoke to dave rebello at rebello racing about the KA motors and here goes.....
if you want HIGH HP Naturally Aspirated KA 24 motors than we are the shop to do it. our restricted carbed ka24e on nasport gt3 series racing 240sx make 288 WHP on a 32mm venturi......built a drag motor for a customer who swears that he can not use the NOS until third gear cause the tires just bust loose on the great amount of torque that you made for my motor.......we build High compression motors of about 13:1 with power above 320 hp....if you want Nissan KA power give us a try....
so we spoke of more about the motor but for my personal use....he is priced highly but does an outstanding job on these motors.
if you want to go carbed he's the man to talk to.....he has the whole supply for CARBED KA24's.....new to his website are SK carburettors this is what u will need......try him out he will not let you down.
dragka24
just spoke to dave rebello at rebello racing about the KA motors and here goes.....
if you want HIGH HP Naturally Aspirated KA 24 motors than we are the shop to do it. our restricted carbed ka24e on nasport gt3 series racing 240sx make 288 WHP on a 32mm venturi......built a drag motor for a customer who swears that he can not use the NOS until third gear cause the tires just bust loose on the great amount of torque that you made for my motor.......we build High compression motors of about 13:1 with power above 320 hp....if you want Nissan KA power give us a try....
so we spoke of more about the motor but for my personal use....he is priced highly but does an outstanding job on these motors.
if you want to go carbed he's the man to talk to.....he has the whole supply for CARBED KA24's.....new to his website are SK carburettors this is what u will need......try him out he will not let you down.
dragka24
setting up EFi is acutually easier than doing multiple carbs. Tuning for optium power with multiple carbs is tricky, of course with a wideband O2 sensor and reader, the process is a whole lot easier. I would do ITBs, especially since you can get use TBs based on performance sidedraft webers, so you can change venturi sizes, but the fuel is delivered by an injector. You should go to Redline Weber's website, buying from them may be more expensive than elsewhere, but at least it gives you a sense of what's out there.
Re: (dragka24)
It really is a no-brainer. KA's need compression like every other built NA motor to make any sort of decent power. I tend to read the all motor section of honda-tech a lot for the info on different NA builds, and these guys consider 11.0:1 compression low.And while it is awesome that Rebello got 288 restricted whp out of their sohc KA, think about how driveable that would be under 4000rpm.dragka24 wrote:hey lovenismo,
just spoke to dave rebello at rebello racing about the KA motors and here goes.....
if you want HIGH HP Naturally Aspirated KA 24 motors than we are the shop to do it. our restricted carbed ka24e on nasport gt3 series racing 240sx make 288 WHP on a 32mm venturi......built a drag motor for a customer who swears that he can not use the NOS until third gear cause the tires just bust loose on the great amount of torque that you made for my motor.......we build High compression motors of about 13:1 with power above 320 hp....if you want Nissan KA power give us a try....
so we spoke of more about the motor but for my personal use....he is priced highly but does an outstanding job on these motors.
if you want to go carbed he's the man to talk to.....he has the whole supply for CARBED KA24's.....new to his website are SK carburettors this is what u will need......try him out he will not let you down.
dragka24
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JTinJacksonvilleNC
- Posts: 90
- Joined: Sat Feb 19, 2005 4:57 pm
- Car: A black 1989 Nissan 240SX coupe.
Re: (nab911)
Just for your info, not every carb gets fuel starved in high G's or on an incline. Certain types of carbs are prone to this, yes, such as carbs used in trucks. If you choose carefully and consult with a "KNOWLEDGABLE" individual that is actually experienced with the proper use of a carb, there's more power to be made. Just look at all the fuelie cars trying to wring out the bugs from their system next time you're at the dragstrip. Remember, stay away from Holley carbs. They are notorious for startvation on steep inclines. By the way, if carbs are so bad, then why did my carbed 'Stang carry the front wheels over a 1/4 of the way down the strip and never blink, sputter, or act starved? Carbs aren't bad. They just require more knowledge than how to turn on a laptop.