370's Installed?

[SLang]

First off let me get my question out of the way while I still have your attention. Can anyone tell me what this part # is



0 432 131 753



And body stamping



7596



Brazil KDAL 59P14 090 25



Now for the details.



My truck is a 97 with 5-speed and 151,165 miles when I started. It also has a TST #11 all the way forward. I have the light AFC spring with star wheel al the way towards the front. I was going to delete this spring but with town driving left it in. Still running stock turbo and everything else. Cat is gone.



Got the injectors Tuesday morning. No time all of Tuesday did not even get a chance to look at them. No time Wednesday, a friend was going to help Wed. night. Grabed tools and part went to working on truck at 6:30-7:00PM. If anyone does this job themselves I suggest 2 things. First take the valve covers off of cylinders 1-4. This makes it easier to move the fuel lines. And second have plenty of WD-40 on hand.



Got the injectors in about 11:00PM. That is correct 4 - 4. 5 hrs. My injectors were completely froze. I guess that's 151K+ for ya.



Drove it home for the test run. I was tired so it does't really count but the truck did not feel like it had any more power. Got up this morning and drove it 5 miles to work on roads and conditions I'm use to. Here is my first impressions:



1) The smoke is a lot less. I was figuring more smoke. Maybe my assumtions (you know what they say about that) were wrong. When I accelerate from a light and grab 3rd, the smoke is a misty grey. It was pure black. Also when I tap the throttle to put it in gear at a light, the puff of smoke is smaller then before.



2) The power increase was not as dramatic as I assumed (there's that word agian). I can not see hardly any difference from my stock injectors compared to the 370's as far as power goes.



3) Cruised the interstate on the way home last night. The boost and EGT were the same as before with cruise set. This make since. The truck still requires the same power as before to go 70 MPH. I could not tell if the pedal was any farther up or down. I think it's about the same as factory injectors.



4) EGT does not rise any faster. Does not max higher either.



As soon as I get some time on it I'll get MPG and boost rise numbers.



From what I have read on this site I do not believe I have 370's. They sound more like 300's. I was so not impressed that last night I pulled an injector when I got home to get the #'s off of it. I called the local Cummins dealer and all the guy could tell me was they were the large marine injectors. He believed they were for the 370HP version but did not know. He sounded confident with his answer but also cocky, so I don't really believe him. Can anyone help. The part # and body stamping are posted at the begining of this novel.



Thanks for making it this far in this long post.



Scott R. Lang

Currently of Columbus, Ohio

 

[Todd G]

Mine had the same numbers on them from the GP. I had the 215's in before I put in the 370's. With the plate full forward, and the AFC housing forward, my 215's would smoke quite a bit. With the 370's, I cenered the plate and put the AFC in the stock position. Like you, I experienced less smoke than before. It seemed to take a week or so to make lots more power. Now I deffinately have more power than before. I know my clutch is crying in the top two gears. Below 1800rpm I get LOTS of smoke if I get on it. More than before. The 370's just seem to take a while to break in.



Todd

 

[446]

370 injector

Scott



I ordered the injectors through the group purchase. @$250 I couldn't pass them up. The numbers on my injectors are the same as yours. Some of the boxes had 300 hand written on them and then crossed out and 370 written down, some said 300 and some said 370. I looked at all the numbers on the body and they all have the same number.

The # 59P14 seems to be the same as the ones Piers had, but the rest of the numbers are different. I haven't installed mine yet I was going to see if anyone else had more input on these before I did. I did ask about the gasket size before I bought them. but all the man could tell me is that they've been selling the same injectors for a year and a half.

Did you measure the gasket before you put them in?

It may have been better to pay $450 to get a little tech support but at that price I could not really bring myself to buy them. Not all of us on this board are rich. (half the price of a TC you know)

I'll do a little research and maybe someone with a little more knowledge than me will chime in here.

 

[SLang]

Thanks guys,



Todd I did not relize there was a breakin on the injectors. That kind of make sence. I'm going to put 400-500 miles on the truck this weekend maybe by Sunday they'll be ready to run.



446, The washer on the 370 were 0. 06-0. 07 if I recall correctly. I used my original washer which were 0. 2-0. 3. These numbers may be a little off since I am using old calipers.

 

[Koa Man]

When I installed my 370s, purchased from Joe Donnelly, I had an immediate and huge power increase. The increase in power was just as much as when I installed the #5 plate. Unfortunately, I didn't bother to look at and write down the numbers on the injectors.

 

[Todd G]

From what I've been told, the thin washers are the hot ticket. Wish I'd known that earlier Oh well, the next time I adjust the plate, I'll switch em.

I just got back from a test run with the temperature at 85 degrees outside. This truck is WAY faster. Outside temps play a major role in HP!

 

[SLang]

Since we are slow around here I had a chance to take an extended lunch for some freeway driving with hard acceleration. The truck does seem to respond better with these injectors. It idles smoother and at speed runs smother. Do not know if that is a plus for me. I like the shake. It accels better but not a 100% gain like the TST #11. If I tip into the throttle very slowly, I can feel the added power. If I slam into it I can not. Guess my clutch will be the next thing to replace. This became very evident when I tried to make a left hand turn in front of a car. I stepped on it, the truck bucked then caught, and by that time I was rocking with the fuel and compounding the problem. Let off the fuel gently rolled back in it and took off.



Pretty sure the feel of less power gain is the clutch!

 

[HEMI®Dart]

Scott,



See my post and Swamp Donkey's post for the correct part # for the 370's. I don't think they gave you the right ones.



https://www.turbodieselregister.com/forums/showthread.php?s=&threadid=18462



Yank them and send them back

 

[bholcomb]

Hemi is right. These aren't the right ones, aka Piers or Joe D. models. I was told by a very reliable source that the tips flow slightly less fuel than the real thing, but not enough to really worry about.



I am still running mine. However, I was dissapointed in the performance, and I wish I knew if I was missing out on anything. So far, this is only item I have regretted buying on group purchase. As I said before I emailed them to find out why they used a different part number and never received a reply. If they would take them back I would probably get a set of the real things.



I can't believe they would send boxes with 300 marked out on them. I would send them loose in a bigger box before stirring up the suspicion like that. I guess you get what you pay for in this case



Brian

 

[Deezul1]

I also have 370s from group purchase. My power increase was moderate but but definately there, also my boxes were remarked but the main body #s were matching what the "good" ones were supposed to be. From posts from other guys 370 experience I was expecting a large increase in power. Called DTT and was told to expect about 40hp increase, These do not threaten my clutch at all and wheel spin is not happening unless I get really rowdy and then only in 2nd gear and not a whole lot so I am not real thrilled with the increase. Smoke is a little more than B4, plate is not been moved star wheel spring is totally relaxed.

 

[Koa Man]

370s should give you more than 40hp increase. A post by Joe D. stated that the "correct" 370s gave 8 more hp than DD3s. Don't exactly know how much DD3s increase hp, but I thought it was around 80-100. The 370s I got from Joe, as I stated in my earlier post, gave my truck a huge increase in power. John P can also testify to that. He added 370s to his truck... he got them from Piers.

 

[John_P]

Scott:



As "Koa Man" said the 370's gave us an

"immediate and huge" power increase!





I could feel it immediately on mine,

however, I do have an automatic transmission.

I did not think at the time that the

horespower would go up as much as it

did. Like you, I did an "analysis/eval-

uation" of all my mods after the Scheid

Diesel Rally last year. That thread is

titled: "370's/govsprg kit/AFC sprgkit/

WOW!" if you are interested in reading

it. My findings were close to yours with

the exception that the "seat of the pants"

feel was tremendous! Then the Mustang Dyno

backed that up.



I agree with "HEMI. " You may have a set of

300's right now! I wish I was closer to you

so you could ride or drive my truck to

compare them. Mine really runs good. Ask

"Koa Man!"



Good luck buddy!



--------

John_P

 

[Turbo Thom]

On the same subject, when you changed the injectors did you change the delivery valves also? I understand they are to be changed together. I am undecieded on working with my present truck or a 2001 model. I now have 202000 miles on the 96.

Thanks

Preston

 

[Koa Man]

No delivery valve changes should be necessary on a 96 or later model. 94s or 95s, especially the autos, will probably need to have larger delivery valves installed to avoid stumbling at low rpm. My truck is a 96 auto and I have had no problems as far as delivery valves are concerned.

 

[cumminsgetme]

Koa Man is right. Most people upgrade to 191 delivery valves. The 215HP pumps come stock with 181 valves, where as the smaller pumps have 131's, thus creating the low end stumble. So if you have the big pump it is not really necessary.

 

[Deezul1]

Thanks for the input guys, I am about ready to put my 215s back in just to see what it feels like in case my seat of the pants memory is as bad as my other memory, drove it 400 miles yesterday all hiwy and got 22. 3 empty so am happy with that, it doesnt start as quick as the old injectors and the lowend torque is less, cant idle in the almost flat drive way approach any more.

 

[Stefan Kondolay]

Guys,



I talked to Piers and he said that the 370's will only give you a 40hp gain over the 215's. He said that the bigger delivery valves would also give you approx. 40hp as they flow 40cc's more and each cc is worth approx. 1hp.



The DD3's for 12 valves make nowhere near those of the 24 valves. As I talked to Lawrence from Diesel Dynamics and he said that the reason for this is that he wanted to keep the trucks running as smooth as possible without having to make other mods. But believe me he can make the power if you want.



Stefan Kondolay

 

[446]

Could it be that on an auto, you woud get more of a power increase since you are starting with 35 fewer hp.

anyone know what size delivery valves a 97-180 hp auto has?

I have not installed mine yet but next weekend sounds as good a time as any.

 

[Koa Man]

446, you are right that those of us with the 180hp autos would have a bigger increase in hp. I KNOW that the addition of 370s gave me way more than 40hp. Like I had mentioned earlier, the difference in power after installing the 370s was at least as great as the #5 plate was over the stock plate. The low and mid range power increase can only be described as phenomenal. I have a pretty good feel of what 40 hp increase feels like, because I started out with 180hp, added a #8 plate for 50 hp increase to 230, then changed that to a #5 plate for an additional 40hp increase to 270. In John P's dyno'd results after adding the 370s, I believe he gained close to 100 hp.

 

[John_P]

Wes:



I could never have done it without all your valuable input

and e-mails back then! I thank you again my friend!

Prior to the 370's and "pump mods" my H. P. was 225.

After the 370's and pump mods it was 380!

I love my 370's! And Piers has the "right" ones too!



---------

John_P