cjb3

For all those that are still wondering, I can confirm that running low impedience injectors will toast the Bosch computer. In this case it resulted in a free tow out of the infield at Summit Point(Thank you Huntley Racing).

The good news is had a spare computer on the shelf and the car is back running. I purchased the 55# injectors from HR and from previous posts understand these to be low impedience which causes the computer to eventually melt down--or in my case anyway.

Before I toast the replacement, does anyone have detail on the installation of ballast resistors? I understand this is the most simple and cheapest cure available.

Also, a place to purchase ballast resistors?

Many Thanks.

Dwayne Williams

I got mine from Danno over at Guru Racing . They came with the 55# injectors I bought but I'm imagine you could get them separately. Install instructions came with em as a PDF. Quite easy to install.

tazman

I have a set of ballast resistors I got with my injectors from Danno I can sell you for $50 plus shipping. Since I went to the Tec3 I did not need them.

Mike B

I picked mine up from Newark.com

http://www.newark.com/NewarkWebComme...jsp?id=01F9895

Darius Juca

I was told I did not need then with my bosch #52 550cc...what do you guys think..tazman I am interested if cjb2 is not...

SamGrant951

Mike B, for Siemens #55's I just need to order two of those ballast resistors? Sweet...

AlexE

Order a couple of spares as well.....

SamGrant951

Well, seeing as Magown sold me a set and my Mom decided to throw them away, I guess I will.

Thanks!

Sam Lin

2 of them in series with the injector wires coming out of the DME (one per wire, 2 wires total) and you're set. If you're concerned about heat, attach them to an aluminum plate to act as a heat sink.

Sam

Bri Bro

You need them with the 52 if you intend to push the car for long periods of time. Like DE events.

NZ951

Just a reminder you will need 4 if you ever want to run sequential injection!

cjb3

"I have a set of ballast resistors I got with my injectors from Danno I can sell you for $50 plus shipping. Since I went to the Tec3 I did not need them."

Tazman--yes I will purchase these. When it comes to electrical stuff, I am like a cross current waiting to happen, so I will need the instructions.

My email is cjb3@ntelos.net--or I can be reached at 800-292-9787.

Thanks for all you guys. That was my first post, I had no idea I would get such a response.

CJB3

turbo951fan

There was a post some time ago where to get them and how to do it. Do a search. They are under 10 bucks if you do it yourself. I did a set and eventhough it didn't look as good as the Guru they work just fine.

toddk911

So why don't we run high impedance injectors???

What impedance resistors need to be run???

NZ951

I run 4 X 2.5 ohm