370 Diamond B injectors.

[KSTRS]

I have heard alot about the 370 injectors, who sells them & whats a good price?

 

[John_P]

KSTRS:

I got my 370 Diamond B Injectors from
"BD Diesel Performance". Give Piers
Harry a call @ 1-800-877-5030. You
can also get them from Joe Donnelly.
They run anywhere from about $475. 00
to $520. 00. Be careful where you do
buy them as there are about 6-7 different
types. Piers Harry did alot of research
and testing on the ones he and Joe sell.

--------
John_P

------------------
Red '96 4x4 2500 Auto 3. 54, TST #5, Major Pump Mods(By "Scheid Diesel") 370 Diamond B Injectors, Gov. Spring kit, AFC Spring kit, Banks Exhaust, Prime Loc, Cummins Chrome Kit,Psychotty Air Filter, Pro-Torque Converter, BD Valve Body, BD Pressure Loc, Isspro Gauges, Sendel 16" Alum Wheels w/ 33" BFGs

 

[HEMI®Dart]

Now that Joe D has given his stamp of approval on Diesel Dynamics Extrude Honed injectors, these my be more bang for the buck and a better injector than Diamond B 370. Joe went on to say they idle quieter and smoother, and on acceleration feel noticeably smoother and much more responsive than the "parent" injectors they came from. He also said smoke was less than with the Diamond B's. Joe had Diamond B 370's before the DD injectors. In the past DD's injectors were associated with excess smoke, rough idle ect.

In the past if a diesel performance bolt-on was not endorsed or recommended by Joe, you were better off leaving it alone. Joe D is the Godfather of 12 Valve performance. #ad


Keep in mind the injectors Joe has now are still in the R&D stage. Not available for sale. They are probably about a stage 4 or 5.

I believe this still pretty much pertains to DD,s stage I, II, & III injectors.

Diesel Dynamic's Stage III 12 Valve injector has a 100 HP advantage over a stock 175 HP injector (I think thats what its compared to). This gets my attention.

Using our 20% discount for being a TDR member, we could get 6 DD Stage III 12 Valve injectors for $480. Comparable to the cost of genuine Diamond B injectors.

Would DD's Stage III injectors give us more power & torque than Diamond B's on a stock 215 HP motor? I don't know the answer. #ad


More info here:
https://www.turbodieselregister.com/ubb//Forum4/HTML/004323.html

Feel free to post opinions. I'm also debateing which way to go. #ad




[This message has been edited by HEMI®Dart (edited 03-03-2001). ]

 

[drawson]

I am realy happy with my 370 HP injectors that I got from Joe D.
Smoke I have no stinking smoke. #ad
You want to talk smoke, Bart Timothy and I both where at the EDGE friday watching HeberRam dyno and let me tell you HeberRam's bully dog stage 3 smoke. You could hide a Power stroke in that smoke and not even know it was there. LOL HE has enough smoke to make HVAC proud !!!! #ad
#ad


Unless your at the a very high HP the 370 HP injectors will do you fine...


------------------
EAT'M UP
97 2500 Club 4X4 3. 54, Forrest Green/Driftwood, LSD 5 speed, & Psychotty Air System, TST #11, 370 HP injectors, timing at 16 deg. , 16CM2 housing, AFC spring kit, Geno's Exhaust Blanket, TST EGT gauge & 0-60 boost gauge in A Pillar, Cat-be-gone, 4" Dynomax Bullet muffler, Crome 4" turn down, Rad fan removed, AmsOil Through out, Geno's trans filter kit, AmsOil Bypass system, Lund Winter front, Leer Cab Level Shell Driftwood , 255/85R16, Dyno'd 342 HP pre injectors & turbo housing *NRA/USPSA member and proud of it*

[This message has been edited by drawson (edited 03-03-2001). ]

 

[KSTRS]

Ok, muchos gracias... I am in process of installing TST #11 plate & 16cm housing also removing cat(what a pain in the a** that is turning out to be), installing pacbrake & westach hi-perf combo gauge. Needless to say my bombing cup runneth over at this point. I'll give it a few weeks for the injectors.

Ken

 

[Joseph Donnelly]

I was comparing my Super Mental DD Stage 6 injectors #ad
against the stock Bosch 370s. #ad
To use the full capabilities of the DD6s [my term; Lawrence just called them Super Mental], other modifications are needed. Lawrence and I are working out what is needed and if there is enough demand, he will possibly offer a package of mods.

I feel that the extra quality control and hand labor DD lavishes on his injectors result in a very fine product. Stock Bosch are very good, but as with any mass produced item, there is more possibility of variation in quality. I cannot estimate closely how likely it is that someone would get a less-than-ideal injector from Bosch. I would think the chances are rather small, but I know DD discards a fair number of new Bosch parts that don't meet his quality or performance standards.

Regarding DD3s vs. 370 Bosch for the 12 valve engine, both make a lot of hp and torque. Either of these injectors is close to the limit in power you can get from extra fueling while other engine components remain stock or lightly modified. The Bosch 370s have a fuel sac in the tip and that makes them richer at idle and low power conditions than the DD3s which do not. I anticipate that the DD3s would give somewhat better mpg especially in town driving. However, the DD3s cost more, due to the handwork and quality control procedures, and to their insistence that only the very best get boxed up for sale.

Note that my tests involve the 370 injectors that Piers and I worked up, and only some of the vendors offer that part number while others use another part as their 370 injectors. I cannot address these other injectors' performance characteristics as I haven't tried them.

I might also comment that a portion of the added value of DD injectors comes from their proprietary modification processes, procedures, and methods. Part comes from quality control, and part comes from use of only the best of new critical parts. Only recently did I investigate DD injectors as an alternative to Bosch, the standard we go by because it is OEM [original equipment manufacturer] in our Rams.

Here is an example that shows why I feel DD is not just a welcome exception to the run-of-the-mill or generic aftermarket or rebuilt injector, but also that DD gives us a new standard of quality. A Rammer whom I know recently dyno tested DD Stage 2 injectors against another vendor's Level 3 product at a third-party dyno installation. These tests were conducted at approximately 5000 ft. altitude. The "low-cost" injectors [not really much cheaper since we are comparing DD2 to those 3s] gave 303 hp and LOTS of smoke. The Stage 2 from DD gave 329 hp and very little smoke. I know from experience that DD Stage 3s would give even a bigger hp difference and still very little smoke.

Thus, it's worthwhile to shop carefully for best value, not just lowest price.

[This message has been edited by Joseph Donnelly (edited 03-03-2001). ]

 

[HEMI®Dart]

Excellent Post Joe. I was hoping you would see this thread. #ad


I agree at this point in time ANY Extrude Honed injector should ONLY be bought from Diesel Dynamics.

[This message has been edited by HEMI®Dart (edited 03-04-2001). ]

 

[KSTRS]

Thanks Joe, now to amend my original question "where can I get some of the DD stage 2 or stage 3 injectors?"
sounds great! What kind of hp/torque would I be looking at with these combined with a TST #11 plate & 16 cm housing?

------------------
'98 reg cab 12v, 5-sp

 

[KSTRS]

Sorry I just woke up & realized where I can get the injectors (duh) but I'm still wonderin about the numbers (dont want to slip my centerforce clutch).

------------------
'98 reg cab 12v, 5-sp

 

[drawson]

KSTRS, The addition of the 16 CM2 housing and the 370 HP injectors did my LUK Pro Gold in. I have a new South Bend that will be in next weekend. It really sucks to take power out to get the clutch to stay alive can't wait until next saturday night!!!!!!!!

 

[KSTRS]

Ouch!!!!!!!
I'm beginning to think my current mods shall suffice for awhile, since I have less then 1500 miles on that new centerforce DF clutch (which was made by luk).

Ken

------------------
'98 reg cab 12v, 5-sp

 

[R.ebel]

KSTRS,
See my signature, so far my Centerforce is holding the power. Note I don't abuse my clutch (3000 rpm clutch drops in 3rd, speed shifting etc. ) My #11 plate is slid back . 035 which according to Joe Donnelly is about 28HP and 70 ft-lbs of torque. Slid my #11 plate back just to be kind to my Centerforce, I know I'm right on the edge.

------------------
1997 2500 Ext Cab 4X4,5 spd,3. 54's,Pac brake,Rancho 9000's,Centerforce clutch,K&N airfilter, Isspro gauges,TST #11 plate (280hp/680tq),AFC medium spring, Jardine 4" exhaust, 370 Diamond B marine injectors and 16cm turbine housing.

 

[drawson]

I don't do any 3000 clutch drops and have never abused it in the launch or speed shift too much. I don tow heavy load now and again and the Luk PG did have 60K on it when I installed the 370 injectors and the 16CM2 housing. When I first took off I had the #11 all the way forward and as soon as I was in 5th and hammered down it slipped. I pushed the plate back to stock and little by little if slipped again then in 4th also. I went back to the #12 plate and again for a while it was fine, but a couple of weeks ago a Power joke wanted to play on a hill and when I hammered down in 3rd it slipped. I had to back out of the throttle twice to get it to hook(it was cold). It seems once an organic clutch slips it glazes and looses it holding power.

[This message has been edited by drawson (edited 03-04-2001). ]

 

[HEMI®Dart]

I emailed Keith @ Diesel Dynamics and asked him to compare Bosch Diamond B 370's to the DD Stage 3's. Here is his answer:

"The Diamond B's will make about 8hp more than our Stage 3's, smoke more and have a rough idle. Our injectors are also about 10 times more driveable on the street. "


Tough call on which way to go. Not much difference between price.



[This message has been edited by HEMI®Dart (edited 03-05-2001). ]

 

[John_P]

HEMI:

Thanks for the post on the comparison
between the 370's and the DD inj's. I
really like mine and it idles good, but
... ... ..... it definitely smokes!!!

----------
John_P

 

[drawson]

Ruff idle???? No ruff idle here, and the smoke isn't that bad. I have it adjusted to just puff preboost and there is alittle at full throttle untill until about 25 pound of boost then just a haze. I'll keep the 8 HP thanks.

Really guys they are great injectors no driviablity problems at all.

 

[R.ebel]

No ruff idle here either, some smoke but only when I've got the hammer down! It don't smoke near as bad as my old Furd with 6. 9L International. As much as that thing smoked it should have hauled butt, it was ssslllooowww.

 

[sewman]

I've heard the popoff pressure is higher than the 370 & along with the extrude honing
they the DD's injectors are supposed to be
more efficient.
I am looking to be some bigger injectors soon & trying to decide which is best.
Has anyone noticed a big MPG drop w/either?





------------------
94,4x,#4TST 16cm. ,5spd,4. 10LSD,35"BFG A-T,Bushwacker Flares , A-PIllarGuages,Southbend clutch,straight ex. ,RS9000.

 

[HEMI®Dart]

sewman
We need some input from 12 Valve guys that are running DD III's.

 

[DSiemens]

I have heard or have been warned that honed injectors have problems with spray patterns and leaking. What makes DD not subject to this?

What is impact on life of the motor when you do this. Cummins has the 370 Diamond B for only recreation boat motor for use of less than 300 hours per year. This would seems to indicate a drop in life or maybe a dramitic drop in life with this setup. How many miles do people run with the DDIII or the Diamond B 370's?

------------------
95, Kitty dead, #6plate, 5speed.