My tune up

[shendren]

i had my truck tuned up just after buying it used with 60k on it. a cummins guy tuned it up. the tune up consisted of:



new (rebuilt) injectors (230hp)

a nozzle in the turbo wastegate

timing adjusted



and... ..... the cam plate under the afc housing was moved one way or the other, i don't remember.



anyhow, my question is. how is the "moving the cam plate forward/backward" method different from the actually getting one of those new #xx plates from whoever.



thanks. scott.

 

[shendren]

1st time i've had to reply to my own post. i can't believe nobody can shed some light on this one for me.

??



thanks anyhow. scott.

 

[Deezul1]

A new numbered cam plate from whoever will give more fuel in the right places and will be more efficient as far as EGT versus power. The stock plate will allow you to make more power but Egts will be high.

 

[Joseph Donnelly]

Since your topics had been covered many times before, i guess everyone was waiting for someone else. . .

Moving the plate does less than a TST plate would, but egts can be higher than the TST plate at high rpm. the TST plates are engineered to give the desired uprate such as 230 hp, 605 ft lb, but not too much egt (at least the base uprate plate).



230 injectors aren't popular in dodges. The 215s are better or the 370s. The 230s aren't as nice on driveability or mpg as the 215s. I can give you more details, email me off line. What did he charge you?

 

[shendren]

do you think i will get better mileage with the tst plate vs sliding the stock plate? thanks. scott.

 

[LarryB]

shendren



At the risk of sounding rude (not my intention) you can find most of the answers to your questions by using the search feature. It seems to work best by using single words instead of phrases. Here is the results of a search I did using the word "plate". https://www.turbodieselregister.com...d=143574&sortby=lastpost&sortorder=descending Most of the questions you ask have been answered many times as we all have asked the same thing ourselves. They can not be answered in a few posts. You will need to understand the basics. I think you will begin to find the answers by reading these past posts and doing some searches of your own. It won't take long and it's fun.



Welcome to the world of easy power.

 

[shendren]

well,



i pulled off the housing and i have a stock plate that had been slid fwd. i put in the #8 plate from tst and tst nozzle at the turbo and when driving can tell no difference. i'm sure there is some difference in egt's but i do not have guages to read that. thanks for all of the input. you guys are very helpful and appreciated. scott.

 

[Cooker]

Did you install the #8 in the same location as you stock plate was (forward) or did you move it back a bit?

 

[shendren]

put it right where the template called for. i asked the guy about sliding it and i think he said something like it didn't need to be slid..... i wasn't paying attention. sorry cooker... .

 

[shendren]

p. s. the guy that put it in was a tst guy. scott.

 

[Strick-9]

shendren,

When I first starting upgrading my truck, one of the first mods was of course the camplate. I slid it all the way forward and went out for a test drive. No difference.



I elongated the holes in the camplate to allow me to slide it even further and went for a test drive. No difference.



I cut the elongated holes completely off and slid it yet further forward. Now the AFC housing wouldn't bolt back down because the camplate was too far forward. I cut about 1/4" off the front edge of the camplate to allow the AFC to go back on. No difference.



At this point I remember thinking that the TDR was all hype. It turns out, my engine was running against the governor. The loose torque converter was reving so high that the governor was defueling before I ever moved. I could have run with no plate (I basically was) and still wouldn't have gained any power.



Have you allowed the TC to lockup at speed (60+mph) and then give it some throttle. That's about the only time you notice it with a stock transmission.



Once I adjusted my high idle screw in, I started getting a lot more of this power to the ground. The easy way is to install a governor spring kit. The cheap way is to screw the high idle in a bit. But there are a lot of drawbacks with an auto transmission.



When accelerating from a stop, what is your tach doing? What rpm are you accelerating at? Check to make sure you are getting full throttle at the injector pump. With a stock converter, more RPM gives more power transfer to the tires.



Hope this helps,

Chris

 

[Cooker]

Heh Chris?



Didn't you have a 91% TC in your truck before your trip to Bill's? How do you like the 89% in comparison? Any details?



Scott,

It sounds like Chris may have found the solution to your problem. With the injectors and a plate your stock transmission probably does have a difficult time putting power to the ground.

 

[shendren]

thanks. i will start checking rpm's. when i said that i couldn't tell any difference, i meant between the stock plate slid fwd vs the tst plate. thanks. scott.

 

[shendren]

cooker, seems like we would have a history of this problem since i can't imagine i'm the first one to ever put in 215 injectors and a #8 plate. ??? scott.

 

[Cooker]

Scott,

Did you do any more checking into engine RPM's.



Like Chris mentioned, your stock TC may be slipping and not allowing you to feel or use the extra power.



Does it pull stonger at a higher RPM? You might be able to tell a difference when you are running down the highway and the TC is locked up.



If it is not TC related, you may have a boost leak. W/O a boost gauge it is a little more difficult to tell, but you can build a boost tester.



As far as your truck getting full throttle or not, do you remember if Jim adjusted your truck for max throttle travel? I'm guessing he did.



I can't imagine one of TST installers made a mistake, but you never know. Did you express your concern to them about how the truck ran after the install? What was there response?