Injector upgade!!

[Salmon_Rob]

you set it up for your car yourself

http://www.megasquirt.info/

 

[weelyweels]

so is it a stand alone or a piggy back? or somithing else??

 

[Salmon_Rob]

the closest thing is a piggy back

 

[kcbhiw]

The MegaSquirt can be set up as either a basic piggy back or a full stand alone(spark and fuel).

As a side note, I'm assisting a friend with an MS install on his 510. I'm looking forward to seeing how it performs.

 

[Salmon_Rob]

im interested in ms, how hard is the install?

 

[kcbhiw]

im interested in ms, how hard is the install?

From what we've accomplished so far, the hardest part is the installation of the Escort "manetic pickup" on the crank. Installation of the toothed wheel is a pain in itself. Then, aligning the actual pick-up is a lot of fun too :/.

Everything else is basically wire routing and connections.

We hope to have the car running mid-May.

 

[Salmon_Rob]

hmm...ill prolly just stick with afpr and safc II for now. not that it matters, as the car doesnt run lol

 

[weelyweels]

The MegaSquirt can be set up as either a basic piggy back or a full stand alone(spark and fuel).

As a side note, I'm assisting a friend with an MS install on his 510. I'm looking forward to seeing how it performs.

on his "510"?? i really dont know what you are talking about.. and does that megasquirt work with the stock mav?? i really would not like to have a seed density car they are just not as acurate(speeling) but anyways im not saying that it doesn't work im just stubborn about somethings....

 

[kcbhiw]

on his "510"?? i really dont know what you are talking about.. and does that megasquirt work with the stock mav?? i really would not like to have a seed density car they are just not as acurate(speeling) but anyways im not saying that it doesn't work im just stubborn about somethings....

The MS will work on just about any car. It's a standalone that isn't designed for any specific car. It will replace your stock ECU and engine wiring harness and will elimnate the stock MAF by implementing a MAP sensor.

 

[weelyweels]

yeah i under stand what you saying about standalone thru what i have read/heard and delt with i belive that a maf is better than a map that is it is more accurat..

 

[Salmon_Rob]

what gives you that impression? and if so why dont more manufacturers still use mafs?

 

[kcbhiw]

MAFs were essentially a replacement for VAMs which are highly restrictive, mechanical, large, and hard to tune, even for production. The MAF, or hot-wire, is much smaller, lighter, and easier to produce. MAP sensors are the way to go (as silver03p5 suggested), however. They're small, non obtrusive, allow shorter TB to Filter piping, and so on. Basically, it's a pressure transducer. Air pressure (with respect to atmosphere) + temperature + appropriate ECU maps = a running engine (basically).

 

[D323]

GTX's are 330cc's last time I heard.

good OEM replacement for low boost applications.


MAP sensors are also much more accurate b/c they are on the intake manifold before the air goes into the motor vs. a VAF/MAF which is read at the end of long pipes where changes in the air density and what not can occur.

 

[ROB-80E]

BF GTX injectors are up to 330cc. BG GTX injectors are up to 420cc. BG GTR injectors are up to 605cc.

All the above injectors are interchangeable, but as was said, the GTR injectors are low impedence.

I've just fitted RX7 13B N/A injectors (460cc) and they are doing great. Easily supporting 220Hp at the wheels. Mind you, I did have to drill the nozzel ports, but it was very easy. can provide more details if needed.

 

[Gen1GT]

If you get an RX7 AFM, make sure you tune it on the dyno.

 

[weelyweels]

how big is your rx7 vaf?? cause i have just picked up a probe gt vaf and i was wondering which is bigger... also do you think that i would be able to install the probe injectors w/ the vaf with out needing to tune... i am relating this to mustangs where you can swap injectors aslong as you use the correct maf.. i know that it is a diff set up but would it still apply??

 

[Gen1GT]

Not sure. Would you like me to measure it for you? It's significantly bigger than the stock AFM.