Efi
What EFI system does everyone run??
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Re: Efi
Stock pcm for me. I'm probably the only one with this setup. Fast and Bigstuff are very popular.Depending on what you are doing, there is really no advantage to the aftermarket ones. They are just easier to work with and tune.
Tim |
Re: Efi
The factory boxes are just as easy as the after market stuff.
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Re: Efi
I can't imanine that you can get the same kind of fuel and spark control and logging and data out on a stock ecu that you can get our of something llike the FAST system.
But if $ is an issue, run stock until you decide you need more control or more data out. Then when you need more than your stock setup gives you, look around at what the faster cars in your class are running, and go for that. My Opinion. I never ran a stock ECU in Class, Your mileage may vary. David The New Hemi Guy |
Re: Efi
Oh, but you can.
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Re: Efi
I use the SDS (Simple Digital Systems) for my EFI. It really is simple. It is on the NHRA approved list. It is used also for light aircraft due to it's reliability. I know of a guy that tried to use the stock ECU and had major issues with head gaskets popping. You can do it with a stock ECU, but I think it is much easier to tune with the aftermarket ECU's.
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Re: Efi
I think it all boils down to how up to date your ECM/Program is and how talented you are at tuning. Most of the major players such as Big Stuff, Fast, Holley, etc. are close to plug and play with minimal tuning by the end user. On GM's EFI Live and HP Tuners can tune the stock ECM as well but require much more knowledge and tuning experience. Systems like Megasquirt and others are also quite capable but require much more tuning knowledge and setup than FAST, Big Stuff, etc. Just make sure and purchase the newest version you can get, just like computers aftermarket ECM's get outdated pretty quick
(still useable but the newer stuff is almost always better). JMT. |
Re: Efi
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Do you use the SDS EM-4 on your Turbo Coupe ? I see it's plugs into the factory harness. Or did you go with a custom setup ? http://www.wmsracing.com/new_wms/wms_efi.php BTW: How good is the tech support at SDS ? |
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Re: Efi
I use Vi-Pec. It's got a built in datalogger (up to 10 runs). All the bells and whistles of the top brands. At half the price. Plus you don't need to buy all the special sensors, for the most part you can use what you have.
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Re: Efi
I had HP Tuners for a few years. Worked good for street / strip. Had "something" go wrong and my ECM was locked. Okay, just contact their tech line. Here is what I got:
"Chad, Don't know what caused it either, but the only fix for it is to buy more credits" Wow. You cannot even explain what could have happened? If it was something I did, that is cool, just tell me what it was so it does not happen again. No can do, just give us a few hundred and then we can fix it by sending you a file to download via email. $800 here, $200 there...No thanks. I looked around and talked to everyone running EFI from younger tech geaks to older gents running their first EFI cars. If they were serious and consistently doing good, they were not running HP Tuners. For the most part, FAST was top pick. I pulled every wire out of the car from stem to stern and threw it in a pile, called Jegs and had a FAST system sent to my door. What I pulled out of the car damn near filled the bed of an S10 truck. The FAST system with all the harnesses fit in the front seat. |
Re: Efi
Take a look at the Vi-Pec unit It's a lot cheaper And it comes with the data logger. Few if any extra costs. (wide band O2 sensor).
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Re: Efi
Good move Chad. The internal data logger is great too. It's just a firmwear down load. They sell it to you to load up yourself, if you didn't order it that way. No more cable credit bs.
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Re: Efi
Went with Accel DFI with wideband o2 sensor for stocker. I'll let you know how it works out.
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Re: Efi
I converted to EFI three years ago (Bracket racing) and went with the FAST hardware. I had limited experience with Electromotive, Haltech and Accel. Non with Stock ECU’s so I can’t comment there however, FAST provides great customer service, easy to follow instruction for the novelist, no complicated “cells” or DOS to re-learn. Very user friendly and once its right, your car will carbon copy runs providing the car’s whole combination is dead on.
I’ve gone to a Wednesday track rental at MIR once and called them (FAST efi technicians) and spend the better part of that day on the phone with them until I got my combination right. And they were happy to help; I even got a call back wanting an update. Good people! Pete Kivett |
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