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Build it right the first time
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227 Posts
THATS AWSOME!!!!!!!!! im deffinatly checkin that out after it comes out next spring, i have never liked EFI due to all of the wires and comp parts to it but with this its not a problem!!!!!!!!!
 

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I'm gonna be a bit skeptical on this one. How does it monitor atmospheric conditions, exhaust conditions, engine temp, and such. Those are all parameters that a good fuel management system needs to adapt to. Just plug it into your computer and choose a setup that is most like your situation....I don't think so. We will have to wait and see on this one, but I'm not holding out much hope.

Vince
 

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aka Duke of URL
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4,815 Posts
It appears to be a Speed Density system with the ability to learn as it goes. Similiar but more advanced than the HOLLEY TBI System.

Need a little more tech on it but I bet BG is wondering... :D
 

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aka Duke of URL
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302/Z28 said:
Learn, from what input? I saw no mention of mass aiflow input, exhaust gas temp input, o2 input, yada yada. I will be really suprised if we see any real data on this system.

Vince
Darn Vince...It is briefly described. Guess I will have to draw it out for you.

  • The RetroTek BossEFI™ Injector Body uses port-style high-pressure fuel injectors, which are hidden in the "float bowls."

  • The second component is the "Flow Control" pressure regulator. Rather than forcing a consumer to rip out their old fuel system and install complicated fuel return lines like old-fashioned aftermarket systems, BossEFI™ only requires one fuel line and a standard EFI pump.

  • The "brain" behind the operation is the third and final component, the RetroTek Smart Tune Technology™ (STT) engine management system. Simply take it out of the box, plug it into any computer (desktop or laptop) with a USB or serial cable, and choose one of the pre-loaded programs that best describes your engine. Simply highlight, click, and you're done. Then install the box in your car.

  • The Boss750™ Injector Body is pre-wired with a wiring harness, which snaps into the side of the control box. Add positive and ground leads from the battery, an ignition lead, a lead from the coolant temp sensor in the intake, and snap in a wide-band O2 lead, and you're ready to go.

  • Hit the ignition and the basic tune will get the motor started. At that point the STT System will start checking air/fuel ratios 60 times per second, until it creates it's own fuel curve. Drive around the block and the system will continue to learn, until engine operations reach peak efficiency. As your driving style changes, the STT will continue to adapt.
FORD's EECV-IV and V adapt to different driving conditions. Again, the system is SPEED DENSITY, no MAF.

It is a hotrodders' dream. No complicated hookup.
 

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Blowin' it
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413 Posts
Its got my attention. I could not find anything about the blowers. It did say it was compatible for superchargers and turbo applications, but I did not see anything about big blowers. I wander if you can run twins on a roots style blower? I will e-mail and see what they say.
 

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aka Duke of URL
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4,815 Posts
41willys said:
Its got my attention. I could not find anything about the blowers. It did say it was compatible for superchargers and turbo applications, but I did not see anything about big blowers. I wander if you can run twins on a roots style blower? I will e-mail and see what they say.
...and is compatible with blow-through and draw-through supercharger and turbo applications.
Ask them about using two (TB) at the same time. Will the processor run them?
 

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Smile if you know Jesus
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Discussion Starter #11
Looking at the wiring harness there are 8 connections.

The carb/EFI has 2 connectors (TPS & Fuel injectors). Some of the other connectors are for MAP, temp, WB O2, fuel pump. The other 2 may be for atmospheric pressure, maybe a VSS or knock sensor also?
 

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EFI Rules and Carbs Drool
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919 Posts
That's a pretty cool setup if it lives up to it's claims. I thought of it before (I'm sure many others have too) but don't have the resouces to build it.

Looks like they have a throttle postion sensor built into the throttle body and maybe that is also where they are getting the manifold air pressure reading, probably from the base of the unit (although that loocation wouldn't work for a typical blown motor). That helps keep it clean. You will have to install an o2 sensor in you exhaust though.

I like the idea of the pulse width modulation of the fuel pump, thats a pretty creative way of doing it, as long as the pump survives the variable speeds.

It will be interesting to see how they handle startup, acceleration, warmup as those conditions all require very rich mixtures which will be different for every motor as the 02 reading won't be much help under those conditions.

They should be able to capture atmosphiric pressure on startup, thats how megasquirt does it.

I still prefer the bugcatcher for my EFI :)
 

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RippinRon said:
Hotrodders EFI Dream Come True? we already have that its called megasquirt
yeah, megasquirt is great, but you need to know how to program just to get the tuning program to work with what series and version MS you have. cheap and deffinetly worth it if you can understand how to work everything
 

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They got my attention.................. now somebody spend the money and try it out, and tell all us old folks how well it works in real life!!!!!!
 

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aka Duke of URL
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What is really nice (IMO) is that the actual throttle body appears as a BG carb (dual feed) and you still can use a dual plane intake to give it the correct carb appearance.

It will be one heck of a retrofit for earlier applications. The HOLLEY system was just not correct appearing. I don't know what happened to BG's product, but it was very similiar.
 

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Smile if you know Jesus
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515 Posts
Discussion Starter #18
I asked them if Hot Rod Magazine has gotten ahold of one yet and the answer was yes. I'll be keeping my eye's open for the write up.

Here's the reply I received:

Thank you for your interest in the all-new RetroTek BossEFI system. The
story in Hot Rod magazine came out a little early and our site was not ready
to go up so we will be adding info daily.

PRICING
To answer some basic questions, the system is set to target the $2000.00
price range for the 930cfm body and comes as a complete package. The
Throttle body bolts in place of a Holley or similar 4 barrel and has the
same overall dimensions, so the air cleaner will remain in the same
location.

SELF-TUNING COMPUTER
The computer is the first self-tuning system available and is a speed
density ,closed loop system . We use a PLX wide band (included) and the
system delivers hands free tuning at all loads and RPM²s. The key to our
system is its VE SYNC which reads the air fuel of your engine and re-writes
the base fuel table to deliver the exact Target Air Fuel ratio desired for
your engine. This can be done while viewing the info on a laptop, or without
one. The system re-programs itself so the oxygen sensor does not have to
work to correct an inaccurate calibration each time you run your engine.
Once this is done you can leaved the O2 in place to compensate for various
fuel and elevation differences. A video demonstrating a system being tuned
will be posted on the site shortly so keep checking it out.

ADDITIONAL COMPONENTS
The kit comes with a high pressure fuel pump that mounts on the chassis at
or below the fuel tank . For over 500HP and larger applications, an
ultra-high performance pump is required for an additional charge. Also there
is no need for a return fuel line although one may be used along with an EFI
bypass regulator. The return-less system is included in the kit but the
bypass style system is not included and can be purchased separately.

ECU & WIRING DETAILS
The computers dimensions are 6-inches long, 4.5-inches wide, and 1.65-inches
high; and it can be mounted either under the dash or in another dry
location. All wiring features weather pack connectors and are completely
terminated although you are required to install an o2 sensor bung in the
exhaust pipe. This can be done in one side only by any muffler shop and the
bung is included.

SYSTEMS AVAILABLE
There BossEFI comes in 2 sizes, 930 & 1200 cfm ratings. The 930 will handle
up to 650hp and the 1200 is good for 900+hp with the correct size injectors.
There is a simple formula to size the injectors. We use 4 so the math is:

HP divided by 2 /4 = injector size.

The computer is capable of very small pulse widths so it is better to be a
little large in this area. An example of this is 500hp/2/4 = 62.5lbs. In this
case we would use 63 lb injectors.For Dual Quad systems we would have 8 injectors so HP/2/8= injector size. 500hp/2=250/8=31.25. We would supply 8 32lb injectors in the kit. You can use this simple math to work up any HP combo you have. This is a Quick tip only,call us if you are un sure. All necessary sensors are included so
this is a true bolt on system!!

RELEASE DATE & FURTHER INFO
We will be sending out periodic emails with more details about the BossEFI
system up to the Spring 2007 release date. Please stay tuned, as THE MOST
EXCITING NEW PERFORMANCE PRODUCT IN 20 YEARS is about to REVOLUTIONIZE your
vehicle.
 

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EFI Rules and Carbs Drool
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919 Posts
Well I don't know these guys but if this product performs as well as they want it ito, more power to them. I say give the other EFI syytems a run for thier money. The horror stories I've heard about all of them all would keep anyone from doing it and the prices they get are insane. It's about time and I think people are ready for it.
 

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aka Duke of URL
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4,815 Posts
Well, I will tell you the trouble over using aftermarket rather than OEM (FORD-CHEV MPFI) (IMO)

With the aftermarket, you are at their mercy for design, service and service parts. If they go out (as did BG with their TBI), you are between a rock and a hard place. A guy like me can neither afford or justify the expense/chance of such a system (other than a TB retrofit).

A FORD MPFI is cheap and easy. EEC-IV can be made to work with about anything (including TBI).
 
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