It’s easy to fall into the trap of thinking that bigger fuel injectors equal more power, but unless your engine is set up to deal with the extra fuel, you’ll be on a fast track to trouble. The excess fuel will flood the engine and it either won’t run at all, or will be running too rich.
Do new fuel injectors make a difference?
Changing fuel injectors is not a “plug-and-play” performance upgrade, such as installing a low restriction air filter. It’s something that requires knowledge about how the fuel delivery system works. In fact, upgrading fuel injectors
may actually decrease the engine power if done incorrectly
.
Do 4 hole injectors make a difference?
4-hole injectors are controversial. At best they can smooth out the idle but they won’t actually improve performance over the factory fuel injectors. The reason is that
4-hole injectors don’t put more fuel into the engine than the factory injectors do
.
Are 12 hole injectors better?
In the end,
do not upgrade to larger injectors
in an attempt to get better fuel mileage, as new stock sized injectors will do the job if your current injectors are worn out. But at the same time, if you are looking for more power, do not be afraid to go to a larger injector because of losing fuel economy.
How much HP can bigger injectors add?
Depending on what type of engine you have, you can gain as
much as 10-20 more horsepower and comparable torque
. There is a catch, however. Go too large and you can lose power.
How do I know if I need bigger injectors?
Running too lean
At the other end of the scale is where you’ve modified the engine but the injectors aren’t delivering enough fuel to keep up. If you’ve added a turbo,
a higher flowing fuel pump
, a bigger exhaust and remapped your computer, you’re going to need bigger fuel injectors.
How much HP gain from fuel injectors?
The technical answer is yes; fuel injectors can add
10 extra horsepower at peak
. However, for some car owners, that minimal difference does not offset the increased cost and complexity of switching to fuel injectors or upgrading the existing stock fuel injectors.
Can I put bigger injectors on stock engine?
You can
;t do a stock tune unless you can fool the ecu into thinking it is getting more or less air. If you throw in bigger injectors it will hold that injector open for the same amount of time as the smaller injectors and it will dump TONS of fuel in.
What is the easiest way to increase horsepower?
- Cold Air Intake. Upgrading your vehicle’s intake is one of the easier methods for unlocking some extra horsepower. …
- Performance Exhaust. …
- Software. …
- Forced Induction. …
- Performance Engine Build. …
- Engine Conversion.
Can you run bigger injectors without a tune?
In general,
injectors need a tune
. Otherwise, your ECU is trying to drive the new, bigger injectors using the duty cycle and dead times for the old, smaller injectors, which means too much gas potentially at the wrong time (i.e. – running rich and potentially missing).
How do I know what size fuel injectors I need?
| Injector Flow Rate Naturally Aspirated Engine Engine w/ Power Adder | 52 lbs./hr. 610-775 hp 510-650 hp | 60 lbs./hr 710-900 hp 590-750 hp |
|---|
Do bigger fuel injectors increase HP?
The technical answer is yes;
fuel injectors can add 10 extra horsepower at peak
. However, for some car owners, that minimal difference does not offset the increased cost and complexity of switching to fuel injectors or upgrading the existing stock fuel injectors.
How much horsepower can 1000cc injectors handle?
The 1000cc Injectors can support
650+whp
.
How much HP can LSA injectors handle?
The stock injectors are good to
about 600 hp at the wheels
. The stock dual fuel pumps are good to about 650 hp at the wheels.
How much HP can 750cc injectors make?
Regardless of what some calculators may say, healthy 750cc injectors will easily and safely support
over 800BHP
all day long on gasoline.
When should injectors be upgraded?
But
once the engine begins to process an increased amount of air
(either by adding boost or NOS or grossly changing the engine’s displacement), the fuel injectors won’t be able to flow enough fuel to keep the engine from running lean. This is when one should consider upgrading their fuel delivery system.
