Engine/Transmission (1994 - 1998) Injectors!!!!!!

[Cummins360]

Sent him one but no reply yet

 

[Jim Fulmer]

I got your PM but figure it would be better posted here.



First you have a #8 plate, personally I don't care for them! I would swap it out for a #10 in your case, TST or PDR (don't know about I. I. ) will usually do this and cost you $50. 00 in the end. Second take the DV's you have in your signature out and replace them with 181's if you have them, if you don't I know I. I. has used ones as they pull them out of Big Pumps for 191's, 022's or cuts. Try these things first and see if you like that, if not then swap the injectors out for a set of 215's. You could do a swap with a TDR member that wants to jump from 215's to 370's or call around and see who has a set used that have been cleaned and checked. There $500. 00 new retail, that's a bit high for me.



I took at 215 pump truck to 376 hp on #2 with only a plate and Gov springs along time ago and didn't even try any more on it as he wanted 370's, that was a 56 hp increase..... back to back on the dyno!



Jim

 

[Cooker]

ISecond take the DV's you have in your signature

I missed that. What are 370 marine DV's?

 

[Cummins360]

IDK I think there actually 181's I bought them from TST they said they would work with the 370's better than my 160 dv's

 

[Cummins360]

Idk i think there actually 181's I bought them from TST they said they would work with the 370's better than my 160 dv's

 

[Matthug]

No the ''370 DV's'' are 191's. 181's come in stock 96-98 pumps.

 

[Cooker]

No the ''370 DV's'' are 191's. 181's come in stock 96-98 pumps.

If they came from TST as an upgrade DV I'm guessing they are 191's but are we sure 181's do not come stock in a 370 marine pump?

 

[Cummins360]

Ok I checked the timing today it is at 16. 5 where I put it a few months ago, HOWEVER it turns out I have a #12 TST plate not a #8. I bought the truck and the guy said it had a #8. So is that a bad plate???? Can that be my problem??? If so can I just grind mine somehow to make it work better??? (I have the stock plate as well)

Thanks, Travis

 

[Matthug]

It barely adds any fuel over stock. Grind your stock plate flat all the way down, full fuel. The SP66 should have no problem handling full fuel from a 160 pump.

 

[Cooker]

It barely adds any fuel over stock. Grind your stock plate flat all the way down, full fuel. The SP66 should have no problem handling full fuel from a 160 pump.

Uhhhh..... The truck cannot handle the current fueling. Remember the reason this thread was started? I do not think adding more fuel at this point is a wise decision.

 

[REFLOYD]

Uhhhh..... The truck cannot handle the current fueling. Remember the reason this thread was started? I do not think adding more fuel at this point is a wise decision.

Well that could be true, but also if he is not suppling enough fuel the turbo can not be lit up there for it is not pushing enough air into the engine. I still say a smaller turbo would do him good. my setup runs around 700* cruising at 70mph. and I have a TST #8 plate, 370's, and 191dv, and the turbo is nothing but a modified HX35

 

[Cooker]

Well that could be true, but also if he is not suppling enough fuel the turbo can not be lit up there for it is not pushing enough air into the engine.

I agree but earlier in this thread he mentioned at WOT he is pushing 30+ psi of boost and 1300+ EGT's. He is wanting to lower his EGT's and more fuel won't help in this situation.

 

[Cummins360]

Ok today I put the 160 injectors back in and ground my plate to like a #100 with low end de-fueling and retained the 191 dv's. I also put my HX-35 back on and slid the plate towards the radiator some. It seems ALOT faster now and I cant if I wanted to get the EGT's anywhere near 1300*. I am very happy with the way it is now and I now have a #12 plate and some 370's with about 5000 miles on them for sale

-Travis Oo.

 

[Cooker]

I'm glad to hear you got the truck running to your liking. I'm sure for most daily driving activities the HX35 is much more pleasurable to drive.

 

[Matthug]

He simply wasn't running enough fuel to spin the SP66. Boost pressure and the amount of CFM being put out are not directly related. You WILL have problems only running 250-300 horsepower with a turbo thats designed to be on an engine with no less than 400 because it's not spinning the turbo fast enough to create CFM. He shouldn't have done all those things at once, now we don't know what the problem was. He could have still ground his stock plate with the SP66 on and just seen how it did, no 10 second burst of WOT just to see if EGT's still go that high is gonna cause any bad effects.

The best turbo for his setup with the 370's back in would be a 62/12.

 

[Matthug]

BTW I found an old TST chart, the 12 plate does practically nothing to a 160 pump truck. 5 HP and 40 ft/lbs increase. In fact on their new chart they don't even recommend anything less than a 6 plate for it. The 100 plate he ground probably gave him about 90-100 HP or so, combined with the 370's might be enough fuel to run the SP66... . although a 62/12 would be a much better choice for anything less than 400 RWHP.