killfast1

Thanks guys,

As soon as I get my gauges in this will be my next mod. Just not sure what to go with. Any suggestions?

Im not asking for a war here, just want to be able to tow 40ft 5ver and maybe some racing.

turbo thom

The 275 RV injectors are the cleanest, strongest, and smoothest injector you can install for towing in the 24 V.

..Preston..

dawgo1

Are there any mods that must be bone with 275/300rv injectors or can you just put them in and make star wheel adjustments?

dawgo1

Maybe I am all confused , are the 275/300 ok for 94 12v or only 3rd gen 24v ?

Mike D

No, the 275's are for 24V second gen vp44 trucks.

turbo thom

That being said, there are no starr wheel adjustments. Thats the P7100.

..Preston..

HOHN

I'd put one of Don's small EDMs up to that challenge. His Mach 1s are very very clean. 1.5/1.6 is also VERY clean. Just way stronger.

jlh

Mike D

For double the money. Sorry, couldn't help myself.

JDGnut

I'm not sure I'd even put those two in the same posting... 275= Mach .25's...

HOHN

The confusion lies in the fact that the 275hp Cummins 24V uses the same injector as the 300hp Cummins 24V. Thus, some people advertise the 275s as "300s" because it sounds better.

Now, there IS a 300hp injector for the 12V engines. Just like there are the big marine 370s.


One other source is confusion is that Bosch injectors are referred to by TOTAL hp the engine makes. Example, the 275s are used in an engine that makes 275hp.

This is different than most aftermarket sticks, which are rated by hp INCREASE. Thus, a 150hp Mach 4, adds 150hp worth of fuel, taking you up to around 360hp total.

jlh

turbo thom

I agree.........I should have said for the money, also. A lot of folks cannot afford Dons work.

..Preston..

HOHN

I don't remember COST being a part of the statement that the 275s are the cleanest, strongest, etc.

Now if you want to argue that the 275s are a great VALUE, then you will get no arguement from me. You certainly can't go wrong with them in the <50 hp class.

That's why Don doesn't make an injector <50hp. Selling a stick that's not much better for more than twice the cost doesn't make much business sense.

Witness that absence of Don M 12V sticks on the mass market.

jlh

Mike D

No, cost wasn't mentioned, but you said you would put one of Don's injectors up against the 275. I think dollar per HP has to figure into the equation somehow, wouldn't you agree? If my math is correct 275 net about 50hp which comes to about $6 per hp and if you want to get the extra 15 hp Don's injectors make, it will cost $16 per hp pass the avg. cost of the 275's.

My points is, his injector should be better for the money they cost. I think most of us know Don makes a great injector. I would have gone for his 1.0 if they were about $400.

Plus I've never seen any test that actually shows Don's injectors are cleaner than the 275's. Not saying they aren't, I've just never seen a test. I wouldn't even pretend to know how you would test such a thing.

HOHN

We are in total agreement. This is what I was referring to. Don can't make an injector cheaply enough to justify only a 45-50hp gain.

Once you DO step up to Don's sticks, though, the bigger ones are a better value. the 150hp ones only cost $100 more than the 100hp ones. That HAS to be a better value in terms of hp/dollar.

Injector "Cleanliness" really is only measurable with an emissions tester that tests opacity. It's otherwise a pretty subjective thing.

I installed some Mach 1s on a friend truck (very similar to mine) and the smoke was amazingly low. Now, we are in some elevation here in Cheyenne (6000ft), and even BONE STOCK trucks will smoke pretty noticeably.

But HIS truck smoked even less than many stock truck around here do, and he had the EZ on max fuel in combo with the Mach 1s.

Even more remarkably, his truck felt SOTP about as strong as mine did, only I had much "bigger" DD2.

So, my "90hp" DD2s felt the same hp-wise as his "65hp" Don M sticks-- only with MUCH less smoke, lower EGT, and better mpg.

275s are great injectors, and if that's all that's in the budget, then go for them. They are great sticks that will give a solid 44hp on an HO truck. They also give better mpg in most cases.

But the question of VALUE is up to each person to define for themselves, as it's a matter of what's most important to us.

To me, Don's sticks are untouchable for VALUE, because I would never be able to drive a larger 150hp injector in my street truck (daily driver). Since streetability is paramount to me, Don gave me the ability to run a 150hp stick instead of one that's 100-110hp.

To me, that's a good deal at the price he's asking for. Especially considering that he's basically making the impossible (for ME) possible.

Justin

Mike D

I agree with you about the higher HP injector Don makes, they are in fact a good value using the $ to HP equation. 900 devided by 150 = $6/HP Bingo! right in line with the RV275 value. I just didn't think the $16 per HP for an extra 15 HP was such a value, but if you say the 65 hp rating is under rated, my math equation goes right out the window and I hang my head in shame.