V8kilr

Well the majority of you on the forum will have no clue what this is about so I will give a short explaination before the progress report.


The MegaFuel-Fuel Injection/Standalone Fuel Managment Conversion System or just "MegFI" for short is a system I am developing for the 12a.

It consist of
s5 throttle body
s5 dynamic chamber
s5 upper intake
custom lower intake
s5 fuel pump
Mega squirt ecu

You can pretty much get the picture from there

The kit will allow you to buy a complete bolt on package that includes everything you need to get the system up and running.
This includes everything above plus
Wiring harness
1 MegaSquirt prebuilt and preprogramed
all intake components including fuel injectors
fuel pump and lines
intake piping and filter
and any other odd&end parts

There will also be a basic kit that will come with just the custom lower intake manifold and a preprogramed prebuilt computer.This will allow the buyer to purchase or use parts they mave have lying around, or use s4 intake parts since there cheaper and easier to find.

ok now the progress

I received permission directly from bruce bowling to sell the MegaSquirt ecu.
The website has been launched "although far from complete it is up and running 100% and can be found in my sig"
The lower intake beta 3 is complete and the whole system has been bolted on to a 1st gen
The megafuel is built and programing has started
The car will run slightly, but very very rough and stalls out constantly "need more programing time on the computer"

I plan to pick up a wideband o2 system to help aid with the programing, I am currently using a shops wideband system that goes in the end of the exhaust system and I feel it may be off slightly.

At this point I think the stock injectors are a bit overkill and may step down a bit in size.
I think the lower intake is close to production but may develope heat issues with the primary injectors and exhaust system so it may be re-designed or a heat sheild implemented near the final beta product.

I figured it was time to let the 1st gen community know what was to come in the future now that I am this far along.

The only reason I held it back for so long is because i cant stand when people come up with these great ideas then they never try or you just never hear from them again.

On a side note for all gsl-se owners, there will be a kit for you as well in the future, but the 12a comes first.

I believe the 12a is seriously understated and can perform well and hopefully I will prove this in the future to come.

Check out my website for more products to come, also check the articles section for tech info.

Serious Rotary Engineering

FB II

you are the man!!!!!! so it cranks and runs rough, i take it that it's just way too rich? can this not be controlled thru the ecu? other than that though, put me on your waiting list!

V8kilr

dont know what the problem is as of yet, there are a ton of variables.

you have to remember if you get a haltec for example for a s5, chances are you can get a good starting point for the ecu from haltec or just searching the web.

on the other hand this has never been done before and there is not a FI system for the 12a, so everything is from scratch.

I really just want to get it ready for some dyno runs.
I have no clue what to expect.

Keep this in mind though
86-88 rx7 146hp at 6500rpms
89-92 rx7 160hp at 7000rpms

and those are stock figures with a stock ecu, so now you have to subtract hp because its a 12a BUT it now runs a standalone fuel management system and you get rid of the maf,map sensor whatever sensor.

lets also not forget that virtually no 12a owner runs stock exhaust, so now we add some more hp.

The engine I am testing on has over 100k on the clock so now we have to subtract some more hp.

I'm sure your guess is as good as mine on hp figures, but I dont think 160hp is unreasonable at all.

When its all done I will dyno the engine on a fresh rebuilt to stock spec 12a, with a freshly rebuilt carb and RB exhaust, then dyno with the kit for a true hp gain figure.

I will also test the system on a fresh rebuilt 12a with a street port and that should be where it gets interesting.

fatboy7

Does it do away with an AFM?

V8kilr

yep

rotary emotions

Any ideas on pricing yet? I'm currently running the setup you can see in my sig, but I bought a 12A Elford Turbo (the Elford turbo was an aftermarket turbo for the first gen in the UK) and plan a rebuild street ported version. Since a SP turbo engine could do with a little extra fuel, EFI sounds pretty cool. I already have all S4 parts from a decent car, with a blown engine.
How flexible will the Megasquirt system be? As in: free flowing exhaust, turbo, intake mods...
Do keep us updated, it sounds intresting...

Gregs

so we are looking at 160ish hp on stockport 12a... if this is the case... i may not be doing a t2 swap... but instead fun your system and port my 12a..

whats the $damage$ gonna be on this kit?

-greg

MikeLMR

you got the stuff from Bill then ? Cool !

rotary emotions

Yep, it was brought by a huge truck, and all that was in it was one little 12A and two boxes with the turbo pieces...
I'll have a good time cleaning all that stuff, though...
And I'm still wondering wether I'll use it the way it's intend to be used, or modify to blow through, or even this EFI swap thing. Got most of the parts anyway.

MikeLMR

Should keep you busy then ... kinda lost my way on the 7 (like I always do with projects) 12 Car rally season has started and the weathers getting worse so my 323's been semi rally prepped for 12 car rallies and the 7 is sat in the garage getting dusty and waiting for me to fit the front suspension and decide what to do over the winter.

Can't wait to see what you'll end up with under the bonnet of your car ... sounds interesting.

rotary emotions

can't wait either...

V8kilr

Not sure on pricing yet, you can get tons of info on the MegaSquirt @ http://www.bgsoflex.com/megasquirt.html

V8kilr

The biggest variable on pricing is the man hours that goes into the custom lower intake, after that its whatever price I can get everything else for.

Aico

Can you give us an estimate? +-250USD. Will it be above 600USD for the entire kit?

alien_rx7

I would expect to pay more than $600USD for it if it is anything like othre EFI kits for other cars. It seems you pay that much just for an aftermarket carb kit for Holley or Weber. Maybe we'll get lucky and it'll actually be less

jimmyrose99

when you say "conversion", wha are u converting from, just stock efi or something? i thought u had to replace centre rotor housings with 13b ones to go from carb to efi

Mr. ImportGuy

You can run a 12a with EFI, the housings and rotors won't care as long as air and gas get in haha. It's just down to making a manifold with injectors and what not that fits on the 12a. There is alot more to any EFI system, v8kilr is working on all that fun stuff so anyone else can have efi fairly easy. Props to him for doing so, alot of guys have been making some sweet improvments for the first gen, like the whol rack n pinion kit. Keep up the good work guys, to bad I'm getting out of first gens when all the cool stuff comes out for them. :P

V8kilr

yes thats correct if you plan to run the primary fuel injectors in the center housings, which I dont.

Like mr. importguy said the primary fuel injectors will mount in the lower intake manifold, I have went over the distance from the primaries to the rotors several times and I am pretty sure I am really close to stock spec as far as distance goes.

If you had to change rotor housings then it would no longer be the type of kit I am trying to develope.

When this kit is all done you should be able to convert your 12a to FI in a weekend.

and be ready to drive to work on monday
The computer will come pre-programed, so everything will be plug and play, then its up to the buyer to tweak the computer as they wish for maximum HP for there application.

Mr BiG G

sounds cool V8kilr ....wat do u mean ur gettin out of 1st gens Mr. Import Guy?

Mr BiG G

actually i take the previous comment back....replacing it with "sounds great"

FB II

i am SO FUC$IN STOKED ABOUT THIS! ahhhh, hurry up and get this baby goin!

79+80+84_rx-7

WOW! This is gonna be bad ***!

So now all 12a people can fully tune their cars to go along with each mod, thats so bad ***!


Whats the estimated final release date?


And when will you get your beta version fully tuned to pull some numbers?

Aico

If this kit is gonna cost a lot what kind of advantages would this kit have over a 13b swap?

V8kilr

It will be less then the price of a 13b swap because you would need just about all the same stuff as far as intake manifolds, fuel pump, etc etc

BUT instead of buying a 13b "$1200+ for a rebuilt" you would be buying a custom lower intake, megasquirt ecu, and custom wiring harness to go in its place.

and those three things will be far far from $1300, hell the whole kit wont even cost what the 13b would cost you alone.

rotary emotions

The stupid point for me and all other overseas guys is that we'll always end up paying about twice what you ask... Shipping+import taxes...
When I look at this setup, and then the R&P conversion, I think like: wow, that's it! But I just don't know about those prices. Not your prices, but those that the state will ask me...
For example, for Mazdatrix header flanges (one engine/header, one header/exhaust flange) I paid almost $50 + $50 shipping, +$30 import taxes! That makes $130 for flanges. You know what I mean with expensive parts?