Need some help with injector size!!
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From: Grand haven ,MI
Need some help with injector size!! I have a 346ci with afr 205's,LT's,no cats,fast 90/90 and a 238/242 .605/.609
plus i spray 150 but wet but may go dry later.
It is in a 04 gto with a lpe pump and a kenne bell boost a pump right now my o2's start out at 900 ish and then drop to 870-860 range so i know i am out of injector.
would it hurt to go to the 60# right now or should i go with the 42.5's
for the small diff in price i would rather go bigger now and have a low duty cycle and not have to rebuy later if i go dry or with a bigger cube's
any help on this would be great . just want to buy the right stuff the first time
thanks
plus i spray 150 but wet but may go dry later.
It is in a 04 gto with a lpe pump and a kenne bell boost a pump right now my o2's start out at 900 ish and then drop to 870-860 range so i know i am out of injector.
would it hurt to go to the 60# right now or should i go with the 42.5's
for the small diff in price i would rather go bigger now and have a low duty cycle and not have to rebuy later if i go dry or with a bigger cube's
any help on this would be great . just want to buy the right stuff the first time
thanks
Thread Starter
11 Second Club
iTrader: (4)
Joined: Mar 2007
Posts: 580
Likes: 0
From: Grand haven ,MI
nope but if i need them later i would have to take a loss on the 42.5's and rebuy
thanks for the help
For your set up I would run an injector thats rated at ~36lbs @ 3bar. Thats enough for 500+RWHP N/A.
I have to disagree with the above post. Yes you can have too much injector, but if you plan on spraying, 60# injectors should not be too large. However, 42# injectors should also take care of your fueling needs. 36# injectors will not be enough, as they would be just about ideal for that setup WITHOUT the spray.
DONAIMIAN and I have different opinions on this. My advise would be to start a POLL in the fuel section and get numourous opinions on this. I have a feeling that if you do, you will see that most will side with me. However wherever the majority falls into, it will guide you in the right direction.
DONAIMIAN and I have different opinions on this. My advise would be to start a POLL in the fuel section and get numourous opinions on this. I have a feeling that if you do, you will see that most will side with me. However wherever the majority falls into, it will guide you in the right direction.
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I agree with Donaimain, the 36 lb/hr @ 3 bar are plenty if you are using a WET N20 kit. The N2O system will feed the necessary fuel, so a huge injector isn't needed.
Fuel injector sizing isn't a matter of opinion, it's a mathematical calculation based on known parameters. I wouldn't start a poll, this will do nothing but further confuse the issue. Use a good, accurate injector calculator and buy the right size injectors.
Fuel injector sizing isn't a matter of opinion, it's a mathematical calculation based on known parameters. I wouldn't start a poll, this will do nothing but further confuse the issue. Use a good, accurate injector calculator and buy the right size injectors.
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