'Dynamic EFI' ecu's
Supreme Member
Joined: Feb 2002
Posts: 2,663
Likes: 9
From: Buckhannon, WV
Car: 84' Monte
Engine: 350
Transmission: 700-r4
Axle/Gears: ferd 9" posi 3.50 gears
Rbob is a stand up guy and the add on board for your stock ECM is probably one of the neatest things to come down the DIY prom pipe since the emulator.
I would send him a blank check and trust him well enough to fill it out for the proper amount.
I would send him a blank check and trust him well enough to fill it out for the proper amount.
Joined: Jan 2005
Posts: 10,412
Likes: 493
From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Word for word truth, I could not have stated it better.
Supreme Member
Joined: Jun 2000
Posts: 7,554
Likes: 1
From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
Joined: Jan 2005
Posts: 10,412
Likes: 493
From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
On a side note, I must say that "TECH SUPPORT" after purchase is GREAT as well. RBob has always been quick to help with whatever he can when a problem does pop-up. Trust me, with all the choices available you will have some questions.
Supreme Member
Joined: Jul 2000
Posts: 1,854
Likes: 0
From: Ga
Car: 91 RS
Engine: 305
Transmission: T5
Axle/Gears: 3.73
I'm fishing for info on DFI as well- have a look, nothing but good news about this guy- good emails as well. I want this thing to run on a wide band. Two questions 1/ I am one of the few that on top of lean cruise want to keep the EGR operational too for emissions but also for mileage- apparantly this programming is to be addressed in the 'near future'. 2/ the 7747- moded or not was meant for TBI and I have been told that its the dumbest bot of the bunch, and the fact that it fires the injectors twice as many times as a TPI computer- how can this be good? or is the advanced fueling tables making up for the original programing. Please don't technogarble me because unfortuneatley although I have a good general idea whats going on I have to pay for my programming
By the way, this is on a 1989 Chev 4x4 with a vortec based engine Edelbrock Hiflow base and runners which started a couple years ago with Edelbrocks TBI to MPI conversion kit but the chip was so bad that I had Westers tune it up- but still never ran to my expectations. Was considering Megasquirt piggyback among others because I think running an LC1 will pay for itself, cost is a factor but with some of our local talent it may be easier to tune by laptop and hands on instead of doing what I have been doing with chip burning over long distance.
By the way, this is on a 1989 Chev 4x4 with a vortec based engine Edelbrock Hiflow base and runners which started a couple years ago with Edelbrocks TBI to MPI conversion kit but the chip was so bad that I had Westers tune it up- but still never ran to my expectations. Was considering Megasquirt piggyback among others because I think running an LC1 will pay for itself, cost is a factor but with some of our local talent it may be easier to tune by laptop and hands on instead of doing what I have been doing with chip burning over long distance. Trending Topics
Supreme Member
Joined: Jun 2000
Posts: 7,554
Likes: 1
From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
TBI's use a wet manifold, basically like the carb manifolds do. With them you need to keep the manifold slightly wet, hence the name. Firing the injectors more often (for ~1/2 as long), helps in that reguard. Not to mention you have *another* inj pulse immediately (2x as quickly) for additonal fueling, when needed.
Supreme Member
Joined: Jun 2000
Posts: 7,554
Likes: 1
From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
TBI's use a wet manifold, basically like the carb manifolds do. With them you need to keep the manifold slightly wet, hence the name. Firing the injectors more often (for ~1/2 as long), helps in that reguard. Not to mention you have *another* inj pulse immediately (2x as quickly) for additonal fueling, when needed. This is the *short answer*.
Supreme Member

Joined: Dec 2001
Posts: 1,997
Likes: 12
From: Bartlett, IL
Car: 92 ZR-1
Engine: LT-5
Transmission: ZF-6
Axle/Gears: SuperDana 44 4.10
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Totally agree!!
Absotively! 
