Some Help With Injectors

[KTA]

I looked at my IC 6x 0.009" injectors and they are 145deg.
I looked at a set of 96 215hp 5x.010" and they are 145deg.
I still have yet to find my 89 injectors and check them, but I will!

[Richie O]

I looked at my IC 6x 0.009" injectors and they are 145deg.
I looked at a set of 96 215hp 5x.010" and they are 145deg.
I still have yet to find my 89 injectors and check them, but I will!

Thanks! keep us posted.

[Richie O]

Ok, so I have been reading some injector stuff.

The non cooled trucks had a 155* spray angle.
all the 12 valve intercooled trucks ( including p pumpers ) have 145*. as said by KTA
There is no such thing as a stock 435 horse injector in any mechanical 12 valve ( including industrial, marine ext. )
There is no mechanicaly injected ( ve, cav, p pumped ) stock 6b over 370 horses. ( all the big horse marine over 370 are electronic common rail engines. ( Quantam series )
A stock "marine" 370 tip is the wrong spray angle for any 145 degree sprayed truck. The industrial's use the 155* angle with the bigger piston bowl.

Man I thought I had a handle on the injector basics. Boy was I wrong.

[PToombs]

I don't agree with what you said.











I think your boy was reading it to you.

[peobryant]

Ok, so I have been reading some injector stuff.

The non cooled trucks had a 155* spray angle.
all the 12 valve intercooled trucks ( including p pumpers ) have 145*. as said by KTA
There is no such thing as a stock 435 horse injector in any mechanical 12 valve ( including industrial, marine ext. )
There is no mechanicaly injected ( ve, cav, p pumped ) stock 6b over 370 horses. ( all the big horse marine over 370 are electronic common rail engines. ( Quantam series )
A stock "marine" 370 tip is the wrong spray angle for any 145 degree sprayed truck. The industrial's use the 155* angle with the bigger piston bowl.

Man I thought I had a handle on the injector basics. Boy was I wrong.

I see you've been talking to Weston (Smokem.)

I agree with everything you've said, however, has anyone ever confirmed the spray angle on Non I/C trucks? Brian, I'm talking to you...

Another thing I feel is worth mentioning, is having a 155* angle injector in an automotive application doesn't have any ill effects. In fact, my brothers pulling truck actually made more power with a wider spray angle than he did with an injector that was completely spraying inside the bowl. Might be a P-Pump thing, but possible something to think about.

Richie, you (or someone) should compile all the information in one post and make it a sticky. I'm sure it would help a whole lot of people.

[Remps]

Were both sets of injectors in your brother's truck the same size? Pop pressure?Or was spray angle the only variable? Also it would be cool if the injector chart Sticky was updated with spray angles,though I'm sure most of them are 145 degrees.

[peobryant]

Were both sets of injectors in your brother's truck the same size? Pop pressure?Or was spray angle the only variable? Also it would be cool if the injector chart Sticky was updated with spray angles,though I'm sure most of them are 145 degrees.

I actually can't recall now. I do remember him telling me about the new injectors though. They were either 5X.022 or 6X.022 and he said the basically sprayed the cylinder walls, but made way more horsepower with less timing than any set of Scheid injectors they had used before. It may be a P-pump thing, cause I know the VE is a whole 'nother animal, but I found it pretty interesting. O course now I have to find out more information...

[Richie O]

Well Parker I may make a rough draft and let KTA read it. I don't want anyone to think I know what Im talking about cause I don't.

[peobryant]

Well Parker I may make a rough draft and let KTA read it. I don't want anyone to think I know what Im talking about cause I don't.

Yeah, me neither. After talking to my brother today, his pulling truck injectors run about a 170* spray angle. They made more power, with less timing than any other injector they've ran. He's actually convinced (and makes a very convincing argument) that wider spray angles will make more horsepower, but will smoke and haze more. I know he has a hell of a lot more experience than me (he's the reason I'm in the diesel game actually, hopefully one day I'll know half of what he knows now) and everytime he touched a truck (other than mine, he won't touch it ) it runs better than it ever has.

I may ask him to join up here, as he has a lot of experience, and the people here will actually listen, rather than argue. I told him about your truck by the way (the '89) and he's impressed.

[PToombs]

and the people here will actually listen, rather than argue.

Didn't I tell you to quit smoking that stuff?

Obviously you're not listening!

[oklahoma6speed]

what has he made as in hp wise to prove these injectors..
is there any wining trucks that pull or race that use his injectors?
5hole or 6 hole. how does he know witch is better.. has he tried them both, and made sure.. or does he want you to buy his injector/nozzels and find out your self... if i am going to spend 600 buckes on a set of core injectors and new nozzels.. i think ill just change my own nozzels out.
i dont know him/weston. but been around some of his work,
i think ill do it my self.

[BC847]

and the people here will actually listen, rather than argue.

Nu-uh. I call BS!

[chico_mustangs]

I'm so confused... Ok so I called up pensicola diesel and they told me that all of the injectors from 88-93 are the same and the only ones that are different are the auto vs manual which I know is untrue. I asked him a couple other questions, he had an attitude and pretty much blew me off. He also didn't know what the pop pressure or angle was.

I spoke to an older gentleman at Diesel Care & Performance, he told me that the 91.5-98 Injectors are all interchangeable and the ones they sell fit that year range. He also told me the pop pressure was 250 bar. He said that they have 60hp for $289 and 100hp for $329.

Can anyone make any sense of this? All I want to know is which injectors to order, I don't need anything crazy and don't plan on ever making crazy power with my truck. All I want is to be able to easily pull 8k lbs up a hill without going 35mph. I have a fuel pin, full 3-3.5in exhaust, turned up wheel, and an intake.

[Ace]

I don't understand why you want bigger injectors if towing is your primary requirement. Bigger injectors = more fuel = more heat, which is the bane of towing - controlling EGT. I wouldn't consider towing with anything more than stock injectors unless a new S300 or HX40 and a full 4" exhaust was also in the mix.

[mog1300]

I'm so confused... Ok so I called up pensicola diesel and they told me that all of the injectors from 88-93 are the same and the only ones that are different are the auto vs manual which I know is untrue. I asked him a couple other questions, he had an attitude and pretty much blew me off. He also didn't know what the pop pressure or angle was.

I spoke to an older gentleman at Diesel Care & Performance, he told me that the 91.5-98 Injectors are all interchangeable and the ones they sell fit that year range. He also told me the pop pressure was 250 bar. He said that they have 60hp for $289 and 100hp for $329.

Can anyone make any sense of this? All I want to know is which injectors to order, I don't need anything crazy and don't plan on ever making crazy power with my truck. All I want is to be able to easily pull 8k lbs up a hill without going 35mph. I have a fuel pin, full 3-3.5in exhaust, turned up wheel, and an intake.

I took 6 engines apart, 2 210hp P Pump, 1 1990 160hp VE, 1 1999 185hp VE, 1992 160hp VE, 1 1995 175hp VE.
They all use the same piston, they got all the same piston bowl! Except the 1990 non IC engine! They non IC got an larger biston bowl.
Pop pressure are not higher on a P Pump engine, actualy the 185hp VE injectors got the highest pop pressure (270bar stamped on the body).
So only the non IC got an different spray angle!
The 160 and 175 hp engines got the same cam, the 185 hp cam is different and the 210hp cam got way more lift than the other cams.