QUESTION!! (non urgent!!)

[soutthpaw]

I think Swamps is a PHP dealer, not sure, yes you get all your tunes but modded to match the injectors. Bill or Cody will correct me if I am wrong, but the PMR's dont like the SOI to far advanced which will window a block... from my understanding the PMR's are extremely strong against direct force but more brittle than forged rods so they will snap under a twisting or bending force.

[cleatus12r]

I have ZERO experience with breaking anything (not complaining about that).

However, looking at some math and all of the physics that go with it, I really don't think that I personally would want single shot injectors in my PMR truck. Yes, mine has PMRs and I'm not trying to dissuade you from getting them. It just happens to bother me that the one large unbuffered "bang" from a single shot injector may not be conducive to long PMR life.

I may be talking out of my butt though.
I'm sure that Jonathan at Swamps will get you some kick-*** tunes made up for those injectors. I'll get something similar once I get my forged rod short block rebuilt.....

[Cadash]

Originally Posted by cleatus12r

I have ZERO experience with breaking anything (not complaining about that).

However, looking at some math and all of the physics that go with it, I really don't think that I personally would want single shot injectors in my PMR truck. Yes, mine has PMRs and I'm not trying to dissuade you from getting them. It just happens to bother me that the one large unbuffered "bang" from a single shot injector may not be conducive to long PMR life.

I may be talking out of my butt though.
I'm sure that Jonathan at Swamps will get you some kick-*** tunes made up for those injectors. I'll get something similar once I get my forged rod short block rebuilt.....

I hate making decisions like this!!! Hes the one I spoke to today and helped me make the decision on the single shots. I was gonna get splits but after talking to him for a while I decided on the splits. I said I had PMRs almost a million times too!!! Im lost!!! Now I definitely dont know what to do...

[Power Hungry]

Originally Posted by Cadash

I hate making decisions like this!!! Hes the one I spoke to today and helped me make the decision on the single shots. I was gonna get splits but after talking to him for a while I decided on the splits. I said I had PMRs almost a million times too!!! Im lost!!! Now I definitely dont know what to do...

Well, which is it?

I'm assuming you are going with singles. Singles will work fine on a PMR engine as long as the injection timing is kept to a reasonable limit. It's the overly aggressive timing curves associated with the jump to singles (which will inherently increase the point of combustion) along with the additional timing that would normally be used for standard performance programs. Between the two, well... as Dennis Hopper once said, "Bad things, man. Bad things."

We'd still like to get you down here for some live tuning when you've got time. If you can swing it, let me know.

Take care.

[Cadash]

Originally Posted by Power Hungry

Well, which is it?

I'm assuming you are going with singles. Singles will work fine on a PMR engine as long as the injection timing is kept to a reasonable limit. It's the overly aggressive timing curves associated with the jump to singles (which will inherently increase the point of combustion) along with the additional timing that would normally be used for standard performance programs. Between the two, well... as Dennis Hopper once said, "Bad things, man. Bad things."

We'd still like to get you down here for some live tuning when you've got time. If you can swing it, let me know.

Take care.

Lovely!!! You see what happens when I get all worked up!!! I cant even type straight!! But yes, I was looking at splits but after a long talk with Jonathan at Swamps I decided on the singles. Well thats good news then!! As long as my tuner keeps things reasonable that will be my route

I most definitely can make the trip!! Just a matter of when. BUT.....and I do stress the BUT!!!! My whole injector thing started with my #3 injector failing the cylinder contribution test. Truck feels great and runs great. Its just messing with my head now!!!

[cleatus12r]

Dan,

I didn't mean to scare you. All of the things I mentioned are concerns of MY OWN.

You brought up another point in your last post though; failure of your CCT on #3 cylinder.
That test is a guideline only. Yes, it could simply be a weak injector or injector o-rings that have finally eroded away. On the other hand, it could be a compression problem too.

Disclaimer:

This is why friends of my friends DON'T let me look at their vehicles. I'm too much a realist and far too straightforward; I point out every little detail about what is a potential problem with their rigs.

Don't pay any attention to the man on the soap box.

[Diesel Rookie]

Exactly what do you guys mean by PMR why are they weaker? I think it has something to do with the piston conecting rods but am not sure. From what I can tell on the forum my 2003 F350 7.3L may be a PMR truck, is that corret?

Joe

[Cadash]

Originally Posted by cleatus12r

Dan,

I didn't mean to scare you. All of the things I mentioned are concerns of MY OWN.

You brought up another point in your last post though; failure of your CCT on #3 cylinder.
That test is a guideline only. Yes, it could simply be a weak injector or injector o-rings that have finally eroded away. On the other hand, it could be a compression problem too.

Disclaimer:

This is why friends of my friends DON'T let me look at their vehicles. I'm too much a realist and far too straightforward; I point out every little detail about what is a potential problem with their rigs.

Don't pay any attention to the man on the soap box.

Its all good!! When I have something that dont sound right on my rig or a little shake it bugs the crap out of me!! My mind starts playing tricks on me!! Also during the Buzz test that injector sounded off and 1 and 2 were ify as well. I know the risk is always there with these rods but I just want to keep it as minimal as possible. Also too my glow plugs have never been changed on this truck. It has 137xxx miles on it.

I was scared before your post Cody!!!!!