Injectors/FPR/Fuel Questions

[C3L1CA]

Keep the stock one.

[blackrosenova400]

How can you tell him to keep the stock one?

The correct way to do it is to install a fuel pressure gauge, install the pump and watch fuel pressure at idle. If its too high the regulator has been overrun and will need an aftermarket regulator. Adjusting the global will set the tune correct at low loads until the injectors are opening enough fuel to the engine where flow is reduced and the regulator can finally keep up. when that happens, you are now running lean because the global is backed off. You can tune it out but it is just masking the problem.

Originally Posted by C3L1CA

Keep the stock one.

[4seasons69]

Originally Posted by blackrosenova400

How can you tell him to keep the stock one?

The correct way to do it is to install a fuel pressure gauge, install the pump and watch fuel pressure at idle. If its too high the regulator has been overrun and will need an aftermarket regulator. Adjusting the global will set the tune correct at low loads until the injectors are opening enough fuel to the engine where flow is reduced and the regulator can finally keep up. when that happens, you are now running lean because the global is backed off. You can tune it out but it is just masking the problem.

cause brad is running 10's on the stock one that is how he can tell him to keep the stock one.

personally I say if you have the cash just get an afpr. it's just one less thing to worry about

[blackrosenova400]

Generally if someone is asking if they need to use a fpr, they are new to the world of tuning, and explaining to them the correct way of doing things is the best way. Brad is probably really experienced and can get way with it.

If the fpr is not up to the task of correctly regulating the fuel, get one in that can, pretty simple. Id hate to see someone wash there cylinders out with fuel because they weren't explained why they need an aftermarket fpr.

Originally Posted by 4seasons69

cause brad is running 10's on the stock one that is how he can tell him to keep the stock one.

personally I say if you have the cash just get an afpr. it's just one less thing to worry about

[4seasons69]

Originally Posted by blackrosenova400

Generally if someone is asking if they need to use a fpr, they are new to the world of tuning, and explaining to them the correct way of doing things is the best way. Brad is probably really experienced and can get way with it.

If the fpr is not up to the task of correctly regulating the fuel, get one in that can, pretty simple. Id hate to see someone wash there cylinders out with fuel because they weren't explained why they need an aftermarket fpr.

I agree. I was just saying that's why he said keep the stock one