badass951

This is just getting ridiculous! How about you take a look at Ohm's law and then tell me you do not need resistors. Seeing as we have a 12V system with 5.5 ohm stock resistors, the stock injector system draws 2.18 amps. Now, if you go ahead and use a lower resistance injector then you will be drawing 4.29 amps!!! This is almost twice as much amperage, definitely enough to cook your DME!

Also, if Speed Force Racing, Anderson Motorworks, Linsey Racing, and Heritage Racing Inc all recommend not using resistors then it sure gives me a good reason NEVER to buy a single product from any of them. Thanks for the heads up.

Matt H

You might be right but the number of high end tuners and racers running the larger injectors without resistors is huge. I dont know of a reported failure, either.

So either the "definitely enough to cook your DME" statement is wrong or a lot of people have just been lucky.
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badass951

I do not remember their user name on here, but there is definitely another Rennlist user that has "cooked" his DME when he ran low impedance injectors without resistors.

The point is it is not worth the risk. I have taken numerous electronics courses, and unless these tuners can not do simple math it should be obvious to them that twice the amperage is a definite risk. Maybe one of these tuners can chime in with their reasoning behind their non-use of resistors.

badass951

If any of you want a professional opinion why not go to the nearest college or university and ask any electrical engineer? I assure you they will confirm this.

BoostGuy951

I use resistors with my 95lb/hrs.

hosrom_951

badass951: Well, the LR website speaks for itself (regarding injectors and resistors). And the various other vendors also do the same, that is what i thought.

Jeremy: Thanks for the info

Matt H: I also came across the AFPR failing at times, i believe even NZ951 went from a AFPR to a 3 BAR one?

badass951

Well you can go ahead and run them without resistors then. How fun taking an expensive risk on buying a new DME when resistors cost about a dollar, if that.

EDIT: I was only trying to help by the way, but if you want to ignore the scientific facts then that is your choice.

BoostGuy951

I think they are like 20 cents at Radio Shack.

Matt H

Dont get me wrong badass, you are probably correct in the mathematics of this discussion. What I am saying is that the Titanic couldnt sink and it DID. All the theory and math in the world wont change the fact that you CAN run with larger injectors without the resistors. Will the DME fail? I have no clue but I do know that 100% of them didnt/havent.
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badass951

NZ951

I have not heard any other vendor commenting not to use resistors, ONLY LR made that comment last week on another forum. Thats why I directed the comment there, I would not make a position for another vendor because I dont know what their position is Simple. DAVE LINDSEY called it a myth to use resistors. Not my words... I dont get the last comment you made, but refer back to this post of mine to clear it up.

NZ951

No worries, apology accepted.

SamGrant951

You would have actually bought something from Anderson Motorworks???? HAHAHAhahahahaHAHAHahaha...

Ok, Im done now.

Bill

I use 65lb injectors from Guru Racing. Guru injectors all come with resistors.

Re-animator

"Seeing as we have a 12V system with 5.5 ohm stock resistors, the stock injector system draws 2.18 amps. Now, if you go ahead and use a lower resistance injector then you will be drawing 4.29 amps!!! This is almost twice as much amperage, definitely enough to cook your DME!"

Isn't the double amp draw with using lower resistance injectors only at WOT? The ratings are peak ampage draw, right? Just curious and trying to shake the rust off.