[1TITAN]

i have been doing some research into engine managment systems and im now to the point where i need someone who has some experience and knowledge on the subject.
i want to create a stand alone engine management system for a mod motor im going to get but i dont know what all i would need as far as wiring, sensors, or anything else i may be forgetting.
also i want to know how many of those sensors such as o2 sensors are necissary since the motor is going to be for racing any ways

if any one has experience on the matter and can help me figure out the best possibilities for gettin this project goin i would aprieciate it

[casper gt]

efi or carbed?

[HMUSN]

for a modular motor?

[C MY 4D]

Welcome to BigStuff3.com

[casper gt]

Originally Posted by HMUSN for a modular motor?

I dont know if your asking me but any way if I was gonna retro fit a mod motor (fox/etc.) which is the impression the o/p give's in the o/p, I would go with edelbrock, msd & holley combo & make it easy on myself. especially since he says its for racing

[HMUSN]

I was thinking that he might want to talk to Joe at Trick Tuners. He is highly into all that. I believe all of his gauges are tied into one system that he made custom.

[BWAL]

what exactly does "stand alone engine management" mean?

[HMUSN]

kinda like a tuner, but it can change ties in all of your engine management systems as well, exhaust gas, a/f, air temp, transmission temp, exc and you can view anything at all times on the car.

[BWAL]

sounds like a pretty cool concept

[HMUSN]

I had a Anderson PMS for my fox.

[C MY 4D]

In better terms its a whole new operating system for the motor without the limitations of the stock setup.

[Trick Tuners]

The stock ecu is usually the best choice. The main limit is rpms, and i think its around 8500-9000. I'd typically reserve stand alone systems for dedicated race cars (like the one you trailer to the track). The stand alone systems do not offer near the control of the stock ecu. Once you need to go past 80lb injectors, and run leaded gas all the time a stand alone may work better. I would expect to pay $2000 for a very basic unit, and about 5K for all the bells and whistles.

[Matt Cramer]

Originally Posted by 1TITAN i have been doing some research into engine managment systems and im now to the point where i need someone who has some experience and knowledge on the subject. i want to create a stand alone engine management system for a mod motor im going to get but i dont know what all i would need as far as wiring, sensors, or anything else i may be forgetting. also i want to know how many of those sensors such as o2 sensors are necissary since the motor is going to be for racing any ways if any one has experience on the matter and can help me figure out the best possibilities for gettin this project goin i would aprieciate it

The exact answer is going to depend on the brand of engine management you go with. Most of the sensors are ones you already have, but as most standalone systems are speed density you will most likely be using a MAP sensor instead of a MAF. Here's what I would consider the minimum set of sensors to run a modular motor in speed density mode (you'll need a wideband O2 sensor to tune it, but this doesn't have to be installed full time).

- Crankshaft position sensor
- MAP sensor
- Coolant temperature sensor
- Intake air temperature sensor
- Throttle position sensor (you can run without this, but I see no good reason to remove it)
- Camshaft position sensor if running sequential injection

You can often reuse the sensors you have, but you will at the minimum need an appropriate ECU, a wiring harness, and a laptop to tune it with as well as the cable to connect the laptop to the ECU.

[1TITAN]

thanks for the replies. i didnt realize that i wasnt very clear in stating what i was gonna do but yeah i want to set up a mod motor but i wasnt sure about wether or not its smarter to get a system made or to have a tuner modify the heck out of a stock ecu unit

[Trick Tuners]

Originally Posted by 1TITAN thanks for the replies. i didnt realize that i wasnt very clear in stating what i was gonna do but yeah i want to set up a mod motor but i wasnt sure about wether or not its smarter to get a system made or to have a tuner modify the heck out of a stock ecu unit

street car or dedicated race car? How about some info on the engine? Did you read my comment above on the limits of the stock ecu?

[1TITAN]

its gonna be a weekend warrior street and strip car and the motor we are talkin about is a 6.8 triton motor. i know that its not been done too much but ive done a ton of research on it and i have figured every thing out on how to get it in there.... hell thats the easy part but it doesnt do me any good if i cant get it to run.

the plan is to shed the blown motor and the ecu with it and then go from there. the guys who have done the swap all kept the stock motor/ trans and stock ecu which is easy to just swap it over but all i want is the motor but dont want the ecu to freak out when it notices that all the other equipment that is supposed to be in a truck isnt there