How much boost on 320cc injectors
#1
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How much boost on 320cc injectors
Ok.. so im gonna be boosting soon now that the megasquirt is all running good.. The problem is.. all i have right now is 320cc injectors.. how much boost would it be safe to run on these injectors?
I know i could just keep upping until my DC gets too high, but i just kinda wanted a rough estimate
Also, the main question, when I DO get new injectors, what size should i get?
I'm lookin to run from 12-14 psi on my 16g turbo
I know i could just keep upping until my DC gets too high, but i just kinda wanted a rough estimate
Also, the main question, when I DO get new injectors, what size should i get?
I'm lookin to run from 12-14 psi on my 16g turbo
#6
RC Eng would say you're on the ragged edge of the injector at ~220rwhp, so do you think you'll make more than that at 14psi? Keep in mind, RC calcs tend to be conservative.
IIRC, Ben is making 255hp at 15psi with his GReddy 15g, and is reaching 80%DC on his 440s (correct me if I'm wrong Ben). So 460s would be alright at the same power level, which is probably about what you'd hit with a great tune at 14psi, as your turbo is bigger than the 15g.
IIRC, Ben is making 255hp at 15psi with his GReddy 15g, and is reaching 80%DC on his 440s (correct me if I'm wrong Ben). So 460s would be alright at the same power level, which is probably about what you'd hit with a great tune at 14psi, as your turbo is bigger than the 15g.
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That was on a dynapack, so it would be a tad bit more on a dynojet. They are the RC nozzle type injector that supposedly atomize better and respond more quickly than pintle type injectors.
Assuming identical lag times (but theoretically your lag time could be shorter) and atomization properties, your injectors should be good for 206 wheel hp at 80% dc. I used this formula 255/74*80 * 330/440
You can use your datalogging to watch IJDC. If you have headroom, you can turn boost up. If you're running over 85%, turn boost down. I'm at 200 wheel around 10 psi with my smaller turbo. If you have a free flowing exhaust, you're probably limited to around 8 psi or so. Use your datalog to see if you have headroom or not for more. I also have a 190lph hp pump, so that may help keep pressure up with boost. A stock fuel pump may require more ijdc at the same power level to keep the motor fueled.
#13
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Yeah thats what i figured i would do until I get the new ones bought and cleaned..
I'm not positive, but i think my wastegate on my turbo is a 12psi wastegate, that might be too much do you think?
I'm not positive, but i think my wastegate on my turbo is a 12psi wastegate, that might be too much do you think?
RC Eng 440 running 74% duty cycle at HP peak, 255 wheel @ 13 psi
That was on a dynapack, so it would be a tad bit more on a dynojet. They are the RC nozzle type injector that supposedly atomize better and respond more quickly than pintle type injectors.
Assuming identical lag times (but theoretically your lag time could be shorter) and atomization properties, your injectors should be good for 206 wheel hp at 80% dc. I used this formula 255/74*80 * 330/440
You can use your datalogging to watch IJDC. If you have headroom, you can turn boost up. If you're running over 85%, turn boost down.
That was on a dynapack, so it would be a tad bit more on a dynojet. They are the RC nozzle type injector that supposedly atomize better and respond more quickly than pintle type injectors.
Assuming identical lag times (but theoretically your lag time could be shorter) and atomization properties, your injectors should be good for 206 wheel hp at 80% dc. I used this formula 255/74*80 * 330/440
You can use your datalogging to watch IJDC. If you have headroom, you can turn boost up. If you're running over 85%, turn boost down.
#17
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Yeah I'll try that, im debating wether i wanna sell the 320cc's i have now as they are because they havent been used since they have been cleaned and flow tested, they wouldnt be worth as much after i used them.. but oh well **** it ill use them
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