Don't like Egt's after build

StrokiNDieseL · Nov 6, 2015

Thanks all for the useful info guys, I'll try changing tune & see how that goes. Everyone have a gr8 wknd!

sootie · Nov 6, 2015

i think you should stick to seven threes Charles. oh and a few posts back you said you would stop using bandwidth... please oblige...

just because you are a good debater doesnt mean that your way of thinking is the only way to go.

Sure, he can subsist by dialing pw back. no one argues that. the fact is, in order to progess in horsepower, he needs more air. i would say that about anyone-heck Mike did 700+ with high powers and stock fuel!

You were insinuating that anyone trying to make power on a stock nozzle would be spraying all over and roll coal. my stock fuel 6.4 with stock turbos was not hot and smokey-nor was it hot and smokey when i installed bigger turbos.And-when i tore my motor down, the pistons had heat marks right on the edge of the bowl, which isn't too bad considering i have seen others that have patterns right to the cyl wall.

i get that if you left a stock tune, and did a nozzle swap, it would inject more fuel in the same given pw, in turn giving you useable heat and a modest power increase. "Crisp" as you say.

i think the OP needs to clearly state his goals and it will take the conversation in the direction it needs to go. if he was never going to add power, why did he do a nozzle swap in the first place? i can overspeed factory turbos on a stock fuel truck!?

StrokiNDieseL · Nov 6, 2015

StrokiNDieseL said:
Thanks for your time & education. Trucks not patty at all just 1/2 throttle is see increase. Jayson

lol, ***N spell check but then again my poor proof reading..

^^^ that was suppose to say the trucks like a BEAST, not laggy at all.

StrokiNDieseL · Nov 6, 2015

sootie said:
i think the OP needs to clearly state his goals and it will take the conversation in the direction it needs to go. if he was never going to add power, why did he do a nozzle swap in the first place? i can overspeed factory turbos on a stock fuel truck!?

Goal is 800+, but you know that's never the case.. I've got a C10 6.4L w/T66's going 2gether now so this is just a DD (have fun sometimes at track) & Tow pig. I added the nozzles b/c I do want dual pumps & lungs for the future.

due to running hot is why I brought this up, Hell wife just showed a 2nd one :doh: (Blessing tho) might be on the way so we may just be having fun w/this 8Klbs beast and hold back on race truck but I HOPE NOT! Thanks again ALL

sootie · Nov 6, 2015

StrokiNDieseL said:
Goal is 800+, but you know that's never the case.. I've got a C10 6.4L w/T66's going 2gether now so this is just a DD (have fun sometimes at track) & Tow pig. I added the nozzles b/c I do want dual pumps & lungs for the future.

due to running hot is why I brought this up, Hell wife just showed a 2nd one :doh: (Blessing tho) might be on the way so we may just be having fun w/this 8Klbs beast and hold back on race truck but I HOPE NOT! Thanks again ALL

thanks for the clarification. So cutting pulse width like Charles suggested is simply a bandaid. it does not help you get to your goals.

Rubenk · Nov 6, 2015

Changing tunes is a 5 minute ordeal...change it now then change it back after turbos.

StrokiNDieseL · Nov 8, 2015

well I might have came across the signs of a failing or lose of fuel twice yesterday (both pulls back/back) about 75% throttle truck fell on it's face (dead ped 1-3sec) taking off. BUT from a dig 40-50mph pulls hard? I know pumps going to call for much more fuel upon take off, unlike 8K lbs already moving so it does make sense why it possible did that, Idk? I want to make a few track runs but I guess I'll drive easy until I get that 2nd pump on there b/c I don't want to grenade something.

StrokiNDieseL · Nov 8, 2015

Rubenk said:
Changing tunes is a 5 minute ordeal...change it now then change it back after turbos.

done, 8-11mins..

Rubenk · Nov 8, 2015

Monitor rail pressure and see what it's doing.

StrokiNDieseL · Nov 8, 2015

Rubenk said:
Monitor rail pressure and see what it's doing.

Will do, thanks. Need to mount my go pro so I can quit hawking & drive.

Rubenk · Nov 8, 2015

StrokiNDieseL said:
Will do, thanks. Need to mount my go pro so I can quit hawking & drive.

That's how I do it too. Gopro on the monitor and review it later.

forcefed6.4ford · Nov 8, 2015

A slipping clutch pack in the trans will cause a dead pedal as well. This has happened to me in the past. Always thought it was a fuel issue, but rather its a de-fuel due to slippage.

Once the TC is locked (40-50mph depending on how your tune is set up)you can get all the fuel since the turbos will be able to push harder.

StrokiNDieseL · Nov 8, 2015

forcefed6.4ford said:
A slipping clutch pack in the trans will cause a dead pedal as well. This has happened to me in the past. Always thought it was a fuel issue, but rather its a de-fuel due to slippage.

Once the TC is locked (40-50mph depending on how your tune is set up)you can get all the fuel since the turbos will be able to push harder.

Thanks, it happened in the past (b4 build) so you could very well be correct on trans being the issues on your explanation.

Morgan@Midwest Diesel & Auto · Dec 17, 2015

Charles said:
You really can't understand that there are two, 2, II, dos, deux dimensions controlling the fuel in the hole. One is duration, and the other is pressure.

Three

Duration, Pressure, Timing

How long, how much, how soon

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Charles · Dec 18, 2015

Morgan@Midwest Diesel & Auto said:
Three

Duration, Pressure, Timing

How long, how much, how soon

Sent from my iPhone using Tapatalk

I was referring to quantity, lol.

He was referring constantly to "more" and "less" fuel, as if fuel was fuel was fuel, when the same fuel can be put in the cylinder by spraying longer at low pressure or shorter at high pressure with the latter fixing the OP's issues, including turbo size and fuel pump capacity.

Harleyx · Dec 18, 2015

getstroked27 said:
way too much fuel for stock chargers. wheels do not improve much of anything. also, another note, 30% nozzles on a stock single pump is basically pointless, you have to drop PW so far to be able to maintain RP that it negates most of the benefits of having more fuel. but like i said, added fuel on stock chargers is no bueno. that is a lot of boost from stock chargers as well. that is way outside of their efficiency map. So they are basically just forcing hot air, not making power, but losing power. that is why you are running so hot. throw dual pumps on it and bigger chargers.

This.
Read. Then. Re read. To the op.

Harleyx · Dec 18, 2015

Also. Add wate methanol injection. Drops egts in a hurry.

sootie · Dec 18, 2015

Harleyx said:
Also. Add wate methanol injection. Drops egts in a hurry.

stupid advice. have you ever torn a six four down that has had that?

Morgan@Midwest Diesel & Auto · Dec 18, 2015

Charles said:
I was referring to quantity, lol.

He was referring constantly to "more" and "less" fuel, as if fuel was fuel was fuel, when the same fuel can be put in the cylinder by spraying longer at low pressure or shorter at high pressure with the latter fixing the OP's issues, including turbo size and fuel pump capacity.

Correct, I am just busting you chops.

And probably confusing some more people.

Duration and pressure mean nothing if you don't know when they are applied. Most people take all of that for granted.

Just add IPW until smoke appears.... That's all there is to tuning right?

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KCTurbos · Dec 21, 2015

Morgan@Midwest Diesel & Auto said:
Three

Duration, Pressure, Timing

How long, how much, how soon

Sent from my iPhone using Tapatalk

Its actually Four... :swordfight:

Duration, Pressure, Timing, and nozzle size

Its all a balancing act... Tuning would definitely be the easiest route. But to simply say you can pull PW to get larger nozzles to run as clean as stock nozzles is not always true, but it is the first thing I would try. Stock nozzles would run cleaner down low if that is a major concern... and so would smaller turbos.

I come more from the 6.0 world and there is always that one guy that says its all in the tuning... when a customer has 100% nozzles with a big turbo with big tires on stock gears in the mountains that is complaining about egts and smoke.