Dirty Deeds 12 hole injectors

Has anyone installed these? I've talked with Keith Carty briefly when he first introduced these and it looks like he's added a couple new variants at some point since I last looked and if you get the larger 330 CC injector you have to add a new fuel pump but I'm curious if anyone has done the 330 CC over the 270 cc because I don't want to obliterate my MPG but I would like as much performance as possible without losing MPG. Keith had originally told me that I would gain one-three MPG but I'm not sure which injector that was that he initially came out with. If someone has tried one or the other or both then what was the results? I don't mind to upgrade the fuel pump if it's a considerable upgrade but I don't want to upgrade just so that I can run E85 because I'm not into that.

 

Plenty have installed. But before you install, with no slight intended on anyone, you should probably watch this video fully.

https://www.youtube.com/watch?v=D1zq1Dl_IhM​

 

I did a forum search and couldn't really find anyone mentioning any results at all. I found one thread where someone mentioned that they did them and then had a leak due to the O-rings being different but that was literally the only thing I've been able to find. I'm just curious if I want to do the 270 or the 330 CC. I'll definitely watch the video though.

 

There was chatter about it in the past, was in either the 'what did you do' or 'lunch table' thread, I think? It's buried. There are some who've paired the injectors with other things and probably seen benefits. I'm thinking of one specific west coast member with a Sequoia. But alone, I don't think I've ever seen anyone show definitive proof (within margin of error) the injectors alone will give you a boost. I would expect you'd need an increase in airflow and a change in exhaust flow to really see noticeable performance increase.

Full disclosure: I'm not an expert in engine tuning. Just throwing what info I have out.

 

Yeah I found a tiny little mention of it in the what did you do thread I think it was. The video I just watched was pretty interesting though. Most people on the Facebook page has said they felt a lot better of a throttle response at lower RPMs but I haven't heard much in regards to mpg. Even if there was zero power change I would probably do it if I could gain a few MPG with as much as I drive it would pay for itself in no time. That was an interesting video though Also regarding the K&N Filter. I've never ran them but I know a few people who do. But I've never been able to talk myself into giving that much for a filter.

 

I also plan to do long tube headers in the future so I don't know if that is where Keith was seeing most of his Improvement because since he is one of the only makers of long tube headers in the world, I'm sure anything he was testing also had his exhaust on it.

 

You gonna tune after adding the injectors and higher flow fuel pump?

 

if I had everything installed like I would like to, then I would. I wouldn't install anything until I had the entire set of parts in hand lock the injectors, long tube headers and full exhaust. Anything that might change performance, I would probably do everything all at one time and then try to find someone to do a tune. There aren't a lot of places around here that I know of that would do that but I have read where people have had it done but I'm not really sure what all is involved. I know tuning on these trucks is limited from what I've read up on.

 

I think this is a common claim you hear for 'butt dyno'/'needs validation for money spent' results.

Granted, sometimes it can be true, like changing the intake tube neck. I've seen legitimate low-end TQ gains (dyno proven) just from changing the intake tube to something smoother, and without all the extra bullshit on it. But generally speaking, I think the default feeling your average human has to any performance change is, "man, when I jump on the pedal, it's definitely different on the low end!"

There's no single thing that's going to give you great performance without taking away something else, or adding a potential problem.

 

Right. I routinely tow 10k +/- lbs with my truck and it kick of the od and take it easy but it would be nice to have more of a low end grunt. But mpg would be more beneficial. I drive a few hundred miles a day some days.

 

I don't think any single thing is going to get you there. It'll be 2-3 things updating that could. The tidbit that's in the megathread, I think it holds here: Toyota really did a great job of tuning the 2UZ-FE for these trucks with regard to performance vs. mpg, and there's really not a lot I think you can do bolt-on-wise to enhance either of those two things.

 

Any gains will be low to mid range and at part throttle only.

Any benefits from better atomization is going to be hard to quantify without an engine dyno and doing full mapping of 4 vs 12 hole.


I still need to throw mine in.

 

I believe the 330cc injectors are meant for running ethanol, or forced induction, or both at the same time. Not sure they'd make any difference on gasoline without forced induction. Might be worth asking Keith.