370cc injectors in KA24E - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Clutch-Kicks · 12-01-2015, 10:26 PM

Hello everyone, I was looking up some injector upgrades for my KA24e and have been finding a lot of people saying CA18 injectors drop in yet there are people saying something about high impedance and low impedance differences between the injectors and the possibility about blowing my ECU. I also found some Deatschwerks 370cc injectors for the KA. All the forum entries are asking about KAT builds and I was wondering if these injectors would be good in a non-turbo single slammer. I would love to go turbo but the pure intense hatred that the Elroy seem to have for me mixed with the shitty CA smog rules prevents me from doing so. The injectors would be installed alongside a Greddy Emanage Blue.

Razi · 12-01-2015, 10:56 PM

370cc will be fine. You'll be far away from maxing those out on an NA motor.
I was running 8 psi of boost when I was reaching over 90% duty cycle on my KA.

Clutch-Kicks · 12-01-2015, 10:57 PM

Will I gain anything with 370cc?

e1_griego · 12-01-2015, 11:02 PM

If you're not going turbo don't bother with injector upgrades.

Spend the money on a real ecu or rom tune and go with that.

Clutch-Kicks · 12-01-2015, 11:06 PM

I picked up on Emanage for 100. I was planning on using it until I could afford something like the AEM EMS or something along the lines. If I'm not going turbo, what should I do to the motor?

e1_griego · 12-01-2015, 11:07 PM

There's not much you can do.

Bolts ons mostly just make noise. ECU tuning (like a JWT rom tune, for example) is about the only place you can get easy power, short of going high comp or something. $$$

Build the rest of the car (suspension, wheels/tires, brakes, seats, steering wheel,etc), then decide on power mods. A done up car even with 115whp is fun.

Clutch-Kicks · 12-01-2015, 11:14 PM

Quote:

Originally Posted by e1_griego

There's not much you can do.

Bolts ons mostly just make noise. ECU tuning (like a JWT rom tune, for example) is about the only place you can get easy power, short of going high comp or something. $$$

Build the rest of the car (suspension, wheels/tires, brakes, seats, steering wheel,etc), then decide on power mods. A done up car even with 115whp is fun.

Ive done every arm in the suspension, struts and sways, camber plates, Buddy club rims, federal 595 super steels, brakes are stock, got sparco junior bucket seat, momo steering wheel with nrg quick release for when I wanna scare passengers. The engine has an Injen intake, Mishimoto radiator, and Buddy Club Spec2 exhaust.

Razi · 12-01-2015, 11:15 PM

I'm not sure if you'll gain anything. I don't know how hard the 270ccs work on an NA motor.
No matter what kind of mods you put on it, I'm sure you won't be close to maxing them out.
But I'd stay away from Deatschwerks injectors though. Stick with OEM or something.
Q45s have 370cc's that drop right in.

Clutch-Kicks · 12-01-2015, 11:19 PM

Quote:

Originally Posted by Razi

I'm not sure if you'll gain anything. I don't know how hard the 270ccs work on an NA motor.
No matter what kind of mods you put on it, I'm sure you won't be close to maxing them out.
But I'd stay away from Deatschwerks injectors though. Stick with OEM or something.
Q45s have 370cc's that drop right in.

Gain anything with walbro 255 on board too? I remember seeing something about a fuel pump upgrade along side the injectors. I also saw that Q45 injectors are side fed. Dont I need top feed injectors for the KA24E?

Razi · 12-02-2015, 10:44 PM

Quote:

Originally Posted by Clutch-Kicks

Gain anything with walbro 255 on board too? I remember seeing something about a fuel pump upgrade along side the injectors. I also saw that Q45 injectors are side fed. Dont I need top feed injectors for the KA24E?

Oh yeah, I forgot that you had an SOHC.
Unless your pump was failing, you won't see any benefit. It's just fuel supply, so unless you were having issues with fueling, you won't get any kind of gain out of new injectors or fuel pumps.

zerodameaon · 12-02-2015, 05:50 PM

The way you benefit from the walbro is you replace your 20 year old pump with something new that should not have issues for a while.

12-01-2015, 10:26 PM	#1
Clutch-Kicks Join Date: Apr 2015 Location: SoCal Age: 29 Posts: 19 Trader Rating: (0) Feedback Score: 0 reviews	370cc injectors in KA24E Hello everyone, I was looking up some injector upgrades for my KA24e and have been finding a lot of people saying CA18 injectors drop in yet there are people saying something about high impedance and low impedance differences between the injectors and the possibility about blowing my ECU. I also found some Deatschwerks 370cc injectors for the KA. All the forum entries are asking about KAT builds and I was wondering if these injectors would be good in a non-turbo single slammer. I would love to go turbo but the pure intense hatred that the Elroy seem to have for me mixed with the shitty CA smog rules prevents me from doing so. The injectors would be installed alongside a Greddy Emanage Blue.

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12-01-2015, 10:56 PM	#2
Razi Zilvia Addict Join Date: Apr 2007 Location: Corona Posts: 630 Trader Rating: (12) Feedback Score: 12 reviews	370cc will be fine. You'll be far away from maxing those out on an NA motor. I was running 8 psi of boost when I was reaching over 90% duty cycle on my KA.

12-01-2015, 10:57 PM	#3
Clutch-Kicks Join Date: Apr 2015 Location: SoCal Age: 29 Posts: 19 Trader Rating: (0) Feedback Score: 0 reviews	Will I gain anything with 370cc?

12-01-2015, 11:02 PM	#4
e1_griego Post Whore! Join Date: Sep 2004 Location: Independence, Ore. Age: 40 Posts: 2,722 Trader Rating: (24) Feedback Score: 24 reviews	If you're not going turbo don't bother with injector upgrades. Spend the money on a real ecu or rom tune and go with that.

12-01-2015, 11:06 PM	#5
Clutch-Kicks Join Date: Apr 2015 Location: SoCal Age: 29 Posts: 19 Trader Rating: (0) Feedback Score: 0 reviews	I picked up on Emanage for 100. I was planning on using it until I could afford something like the AEM EMS or something along the lines. If I'm not going turbo, what should I do to the motor?

12-01-2015, 11:07 PM	#6
e1_griego Post Whore! Join Date: Sep 2004 Location: Independence, Ore. Age: 40 Posts: 2,722 Trader Rating: (24) Feedback Score: 24 reviews	There's not much you can do. Bolts ons mostly just make noise. ECU tuning (like a JWT rom tune, for example) is about the only place you can get easy power, short of going high comp or something. $$$ Build the rest of the car (suspension, wheels/tires, brakes, seats, steering wheel,etc), then decide on power mods. A done up car even with 115whp is fun.

12-01-2015, 11:15 PM	#8
Razi Zilvia Addict Join Date: Apr 2007 Location: Corona Posts: 630 Trader Rating: (12) Feedback Score: 12 reviews	I'm not sure if you'll gain anything. I don't know how hard the 270ccs work on an NA motor. No matter what kind of mods you put on it, I'm sure you won't be close to maxing them out. But I'd stay away from Deatschwerks injectors though. Stick with OEM or something. Q45s have 370cc's that drop right in.