CAT 3126 Injectors in 7.3??

[USMCTJ13]

i used to work for cat and the injectors for the 3126 engine look to be the same as the ones in the 7.3. i know cat and international designed the heui injection system together. has anyone ever put the 3126 injectors in a 7.3? ive searched this online and i cant seem to find anything, just curious if they would fit.....

[Chunkspowerstroke]

Subscribed.

[BIGBILL105 45]

Ryan Ronning was talking about this. Search that name and see whathis thread says. I can't remember.

[dereku]

sounds like a good idea for a larger injector but I wonder if they can pulse as fast as the PSD. They are designed for low end torque and my not be able to handle much past 2500 RPMs. But hey if they would could be a cheap upgrade. Also is there any place that quotes flow rates on CAT injectors?

I have a project truck in the works and it would be cool to make it as low budget as possible.

[USMCTJ13]

Originally Posted by dereku

sounds like a good idea for a larger injector but I wonder if they can pulse as fast as the PSD. They are designed for low end torque and my not be able to handle much past 2500 RPMs. But hey if they would could be a cheap upgrade. Also is there any place that quotes flow rates on CAT injectors?

I have a project truck in the works and it would be cool to make it as low budget as possible.

they should be able to sence both engines use the same injection system. as far as the flow rates, i might be able to get them out of a 3126 engine book. the only really ****** thing if they did work would be if they only came in sets of 6 (the 3126 is an I6) but then again you could prob buy them seperate. i thought i was crazy thinkin that they might fit but who knows, this might turn out to be a do able mod!

[cpayne6335]

Subscribed. Calling my brother that works in a shop, and they deal with a ton of 3126's.

[GM Duraturd]

The nozzle spray pattern would most likely be different and not spray the fuel into the bowl...

[wingnut]

why would you want to...cat stuff aint cheap and with the advent of guys like rosewood's DIY injectors, i dont see the point

http://www.diy-injectors.com/

[cpayne6335]

this is what he said. It would not work, they are a little larger. Need some good mics or dail calipers to tell...There are other factors too, oil galleys in them, voltages, AC or DC current, and those injectors are built for torque, not HP. He is almost 75% sure they will not work. Plus they seal differntly in the head. Plus to get the injector oring set for 6 sticks is about $250. The shop he works at just did a set.....

Sorry to rain on the party, but there is my brothers thoughts.....

Hey Ryan, what is your thoughts on this?

[DZL JIM]

The early CAT injectors are exactly the same externally as the PSD injectors adn will drop right in.
BUT there are differences with them just as there are with our Single Shot, Split Shot, and all the B code 466 and 530 variations, so it would take quite a bit of homework to figure out exactly which ones would be of any benefit.

In the end core CAT injectors are around $200 - $300 EACH, ours are $25 - $50.
It's simply not worth it unless you are GIVEN 8 of the exactly correct ones for free...