34151 FET INJECTOR DRIVER DOWNLOAD

The following is a guide as to whether you need to use resistors or the flyback board:. Some pumps come with an accumulator after the pump, and these can be left in place. The parts you no longer need are: Fuel delivery is always good with EFI well, mostly. Contact me if it's your case.

Uploader:	Shakadal
Date Added:	1 April 2015
File Size:	47.60 Mb
Operating Systems:	Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads:	84276
Price:	Free* [*Free Regsitration Required]

Rated pressure psi usually The ijnector sink should just be tall enough to allow the FlyBack board to slide underneath it when it is installed in the lowest slot of the upper case. Be sure to use one resistor in series with each injector, and then you can parallel these into the two banks.

fet injector driver

This makes the injected fuel quantity solely a function of the injector open time. To eliminate PWM altogether, use a 5 to 8 ohm resistor with a 20 to 25 watt rating in series with each injector.

In fact, most injectors are a similar size physically, though there tends to be more variation in throttle body injection injectors than in port injectors. Determining how much fuel to supplyThe primary factor used in determining the amount of fuel required by the engine is the amount by weight of air that is being taken in by the engine for use in combustion. This is a problem becausein the standard code for MegaSquirt-I, the resolution of the steps is 0.

You may be able to use less resistance to protect the flyback components - just a few ohms combined with PWM may do the trick. There are two problems with running the very lower pulse widths that result from large injectors. There are two problems with running the very lower pulse widths that result from large injectors.

Megasquirt Support Forum (MSEXTRA)

What do I need? Your throttle body needs to do 2 things: Fuel is in the line and don't pass the injector to the motorwhat's wrong? Apply heat sink compound between the case and heat sink.

So you really have to compare the EFI throttle size to the carb's venturi size. Note that if you are using a factory fuel rail, you may be able to find an aftermarket adapter to mate your OEM fuel fitting to an AN hose. If you do not own at least twofire extinguishers, go buy some right now! Other engine sensors used in EFI systems include a coolant temperature sensor, a camshaft or crankshaft position sensor some systems get the position information from the distributorand an oxygen sensor which is installed in the exhaust system so that it can be used to determine how well the fuel has been combusted, therefore allowing closed loop operation.

These serve two functions: If you run a new pick-up into the tank, it will need a filter. In some sizes, they may thread together,, but will not seal properly, due to the difference in sealing surface angles.

On petrol engines, fuel injection replaced carburetors from the s onward. I replaced plugs and wires, any advice? The resistors R are also new to the v1. For port injection, you can convert an existing carb, to do both jobs - the carb already controls the air flow, you have to adapt a TPS sensor to it.

Peak&Hold Injector Driver Board for Megasquirt

Do not proceed until you have electrically isolated the TIP transistor mounting tab from the heat sink. You have to bend the middle leg slightly towards the flat side to fit it in the holes. Note that using embedded code version 2.

Make sure the leads of the transistor will not touch the heat sink! TBIs have the advantage of having the fuel pressure regulator built in, of course.

For a complete listing of various fittings with part numbers, etc. Some are able to go as low as 1.

To calculate how much horsepower you can make from a given throttle body size, you can use the estimator below: Once the engine has started, the switch continues to provide power to the pump as long as there is oil pressure to keep the switch turned on.