How big of injectors can I run with out loosing tow ability

j17sims

Justin
Jul 1, 2011
14
0
1
Missouri
I'm installing dual fuelers due to draining the rail on my two performance tunes, so I also want to step up in injectors size too be able to drop pulse width. BUT I do not want to loose drive ability or most important tow ability. What's the biggest can I go and still keep that. Stock charger for now soon to be modded stock, maybe larger in the future. Thanks
 

j17sims

Justin
Jul 1, 2011
14
0
1
Missouri
I pull work stock now and use it the to tow. I threw in daily drive but if it running it's headed to a track or towing. But plans change later and I just don't wanna put 45over and later go "I should have done 60 or 100 overs " In the future I will probably build the engine maybe in the near future depending on how the pulling season goes.:)
 

PACougar

Active member
Jun 27, 2012
2,105
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El Dorado Hills, Ca
Then I'd suggest 100 overs, correctly tuned with enough air and you can easily DD them. Should give you some good fuel for pretty big power at the track.
 

Harbin_22

Active member
Dec 4, 2010
3,858
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38
Southern Indiana
Depends on how much smoke you can deal with. My 40% were very clean even when out of boost. My 60% and 100% are smokey if you crowd the throttle too hard down low before the turbos start to spool. Once it gets a little boost, they are fine.
 

bluecollar

Member
Feb 28, 2012
351
0
16
ia
Dont be scared justin go big:thumb: but id say 60s which will be plenty for you and your goals. Will give you plenty of fuel with smaller pw and should be fairly clean with good tuning
 

j17sims

Justin
Jul 1, 2011
14
0
1
Missouri
Thank I haven't had any injectors in a duramax yet and I didn't want it slobbering and hasing white. I've had that before I don't want that
 

bluecollar

Member
Feb 28, 2012
351
0
16
ia
Thank I haven't had any injectors in a duramax yet and I didn't want it slobbering and hasing white. I've had that before I don't want that

Like others have said it can be done with 100s even, 40s would be plenty for ya but 60s arent much more $.. you just wanna whoop fasttoys450 dont ya:roflmao:
 

PACougar

Active member
Jun 27, 2012
2,105
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41
El Dorado Hills, Ca
My main suggestion would be to go with Exergy's. They're really well balanced and quality goes a long ways when it comes to injectors, ask me how I know:)
 

Harbin_22

Active member
Dec 4, 2010
3,858
7
38
Southern Indiana
My 40% from big dipper were super clean and ran great for all of $650 they cost. My MFE 60% and Exeregy 100% run fine too but they are smokey down low and cost a hell of a lot more. I know they are bigger buy was a little disappointed in the amount smoke
 

S Phinney

Active member
Aug 15, 2008
4,008
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28
Quncy, Fl
It depends on how heavy you will tow. You can do a lot with sizes as small as 45 over and can run pretty clean at 100 over. the guy tuning you truck will have as much to do with it as the size of the injector. Quality injectors are the only ones you should consider no question about it.