New injectors

Bobby@cp · Jan 19, 2012

FrankTheTank said:
an intercooler will always help, but if you have the right combo of air in and air out with the proper fuel, and intercooler isnt needed...... but thats just what i have read in a few performance books, intercoolers make more piping and lag time for race and pulling, with all that said, i will be putting an intercooler on my truck b4 injectors go in

I'm going to disagree with you with the "right combo of air in and air out with the proper fuel an intercooler isnt needed" Makes me think that you are using A/F ratio that would be used on a gasser? Plus there isnt that much difference of lag time(ever hear of a boosted launch?), maybe four foot extra of pipe.

Sorry, but an intercooler should be on any diesel. Freaking stupid that the obs trucks came without one and came with such a stupid downpipe.

Stacks92 · Jan 21, 2012

is the exhaust real smokey? looking to run stage twos but dont want all the smoke...

Bobby@cp · Jan 21, 2012

Stacks92 said:
is the exhaust real smokey? looking to run stage twos but dont want all the smoke...

Tuning....and your right foot come in to play.

For what its worth cat rebels truck smokes about as much as a chipped SD and he has bigger injectors....

sparksf250 · Jan 21, 2012

I agree on the OBS needing a intercooler. These only get hot on the "all out" tune the other settings it pretty much stops at 1000. now thats truck only not pulling anything. they are tuned great too. rolling 25-30 and massing the pedal to the floor only gives me a pretty good haze not a huge cloud of black

superdutyman97 · Jan 23, 2012

Are you running any other supporting mods for the injectors? I'm wanting a similar set up but I'm wondering if I need to upgrade my hpop to run 1.5s.

obs7.3 · Jan 23, 2012

superdutyman97 said:
Are you running any other supporting mods for the injectors? I'm wanting a similar set up but I'm wondering if I need to upgrade my hpop to run 1.5s.

I was always told no because the .5 is just a 30% nozzle instead of a stock one, and stage 1's can run on the stock hpop. But like I said, that's just what I was always told

superdutyman97 · Jan 23, 2012

obs7.3 said:
I was always told no because the .5 is just a 30% nozzle instead of a stock one, and stage 1's can run on the stock hpop. But like I said, that's just what I was always told

Cool thanks for the info. We're going up friday to drop off my dads truck so ill tak to him then.

superdutyman97 · Jan 24, 2012

Stacks92 said:
is the exhaust real smokey? looking to run stage twos but dont want all the smoke...

My brother had a set of stage 2s with Matt's tunes and it wasn't very smokey. Smoked pretty good at first but cleared up very quick.

DZL JIM · Jan 25, 2012

superdutyman97 said:
Are you running any other supporting mods for the injectors? I'm wanting a similar set up but I'm wondering if I need to upgrade my hpop to run 1.5s.

I've never seen or heard of an OBS with Stage-1's and good performance tunes that didn't require a larger hpop.

FrankTheTank · Jan 25, 2012

Countryboyrob said:
I'm going to disagree with you with the "right combo of air in and air out with the proper fuel an intercooler isnt needed" Makes me think that you are using A/F ratio that would be used on a gasser? Plus there isnt that much difference of lag time(ever hear of a boosted launch?), maybe four foot extra of pipe.

Sorry, but an intercooler should be on any diesel. Freaking stupid that the obs trucks came without one and came with such a stupid downpipe.

i agree with you.... just sayin what i read in a book, but that book was based on pulling and all out racing so maby thats why there was talks of running no intercooler?????

like i said, i will be installing one my truck b4 it gets tuned up!!

Bobby@cp · Jan 25, 2012

FrankTheTank said:
i agree with you.... just sayin what i read in a book, but that book was based on pulling and all out racing so maby thats why there was talks of running no intercooler?????

like i said, i will be installing one my truck b4 it gets tuned up!!

when dealing with all out racing and sled pulling seem that most people are going to a air to water cooler...or however it is.

Stacks92 · Jan 25, 2012

Water to air, yes.

obs7.3 · Jan 26, 2012

DZL JIM said:
I've never seen or heard of an OBS with Stage-1's and good performance tunes that didn't require a larger hpop.

most stage 1's don't REQUIRE a new hpop but a lot of places recommend it.
stage 1's don't require anymore psi to open the injector but if the pump is weak then it makes more sense to change it when you upgrade injectors.

DZL JIM · Jan 27, 2012

obs7.3 said:
most stage 1's don't REQUIRE a new hpop but a lot of places recommend it.
stage 1's don't require anymore psi to open the injector but if the pump is weak then it makes more sense to change it when you upgrade injectors.

Please re-read my post: "....AND GOOD PERFORMANCE TUNES..."
If you have Stage-1's AND good tunes you WILL NEED a larger HPOP.
Without any tunes, or low hp, poor tunes you will probably get by not setting a CEL. All that means is you're probably in the 2000 psi range and not low enough to set the CEL.
The increased stroke in the Stage-1's WILL require more oil when they are pushed.
Not really opinion, it's just the way it is...

obs7.3 · Feb 2, 2012

DZL JIM said:
Please re-read my post: "....AND GOOD PERFORMANCE TUNES..."
If you have Stage-1's AND good tunes you WILL NEED a larger HPOP.
Without any tunes, or low hp, poor tunes you will probably get by not setting a CEL. All that means is you're probably in the 2000 psi range and not low enough to set the CEL.
The increased stroke in the Stage-1's WILL require more oil when they are pushed.
Not really opinion, it's just the way it is...

sorry. stage 1's and good tunes = bigger hpop.
even though they're not considered a stage 1, the baby swamps are usually run with the stock hpop.

superdutyman97 · Feb 2, 2012

Its getting a new hpop later this summer, hopefully sooner as i'm planning on a whole slew of parts to support the new injectors and open up the possibility of bigger ones eventually. the new HPOP, fuel system, intercooler, bigger charger, and a better clutch. Just trying to keep it on a budget right now. Thanks for the info