High and/or rapidly rising EGTs

[dieselnomad]

What causes rapid EGTs? What about high EGTs? I know boost leaks cause both, but what else?

Need more history? I just recently upgraded from my hx35 to a phat shaft 64/14 (note the shaft part). as part of the upgrade also did a ATS 3-pc exhaust manifold...

After this upgrade, it was found that the intercooler was blown... so, upgraded intercooler, now I have a Cool Twist intercooler, boost up to 100psi. . . I also did today a whole new set of IC boots, so they are all good... but, so EGT's climb fast still and seem high, climb faster and higher than the stock turbo... :nutkick:

so, what else can it / could it be??? lift pump? i dunno????? But feeling kinda unhappy...

any thoughts??? thanks folks! :HoleShotHolset:

[Jim]

if your not on top of the turbo expect higher egt's then stock. when your into it for a nice hammer down burst is where you will see the benefits to the larger charger.

[dieselnomad]

if your not on top of the turbo expect higher egt's then stock. when your into it for a nice hammer down burst is where you will see the benefits to the larger charger.

I should also mention that cool down periods from modest drives (without a hammering) are longer than with the stock turbo.. a lot longer really... sux..

So, Jim, I'm not on top of the turbo, so the EGTs are higher, but maybe not much or much as a concern???? :dunno:

[Warpig]

Drive it like a 24V owner would, you big puss :smilielol:

[dieselnomad]

you mean like a granny?? :falldownlaugh:

[dieselnomad]

if your not on top of the turbo expect higher egt's then stock. .

hey jim, what exactly do you mean by 'on top of the turbo'??

[jamesdean65]

hey jim, what exactly do you mean by 'on top of the turbo'??

More fuel than air you will see higher egt. Try a water meth system, they claim 200 drop in temps.

do you have stock air cleaner and intake? "not enough air= >EGTS"
do you have stock exhaust?

jim

[dieselnomad]

More fuel than air you will see higher egt. Try a water meth system, they claim 200 drop in temps.

do you have stock air cleaner and intake? "not enough air= >EGTS"
do you have stock exhaust?

jim

nope, nope. BHAF fleetguard canister type air filter, and 4" mbrp from turbo back...

I haven't added any fuel since what i listed above- but I can tell you, it's running hotter than it did with the stock turbo (hx35). And this seems to be the opposite of what I expected (thought I'd see the same EGTs or slightly lower). I'm going to take it for a ride on the highway today and see how it does...

[BlkRam1]

Basically being on top of the turbo means dont get caught trying to pull a hill at 65mph in 5th with your rpms down, if so then you face trying to play catch up with your egts, by that I mean if your truck fuels fast/hard and you have a decent sized turbo then you are now trying to play catch up, except its not gonna happen because even though you are now building boost you already have fast rising temps, now you can pedal it and find the sweet spot and the temps will level off, but this requires that you reduce speed ever so slightly while pulling the hill, or you can slow it down drop a gear and bring the rpms up, even though you might not be making a lot of boost rpms will drop your temps, next time you come up on a hill get the boost/rpms up and pull the hill with a lil gusto, I betcha you will have lower temps, If nothing else works then maybe you need to put a 12cm exhaust housing on it, or try and play with your pump timming and how hard you have that bad boy fueling, or maybe you dont have enough fuel to properly light it yet, or just get a set of twins and dont worry about it:nutkick: .

[dieselnomad]

so... if I understand you guys correctly, mayb I don't have enough fuel to lite up the 64/14, not until I find that sweet spot when enough fuel is being delivered and I have some boost... So, if I don't have any boost, or not enough boost (the 64/14 is very different than the hx35, obviously) it will run hotter than with the stock charger? It's like one expensive CATCH22. :nutkick:

AND, I thought I had enough fuel, #10 plate Full forward, 191DVs, timing at 18*

Todd, sure would like to have twins, PM me your CC number. :smilielol:

[BlkRam1]

so... if I understand you guys correctly, mayb I don't have enough fuel to lite up the 64/14, not until I find that sweet spot when enough fuel is being delivered and I have some boost... So, if I don't have any boost, or not enough boost (the 64/14 is very different than the hx35, obviously) it will run hotter than with the stock charger? It's like one expensive CATCH22. :nutkick:

AND, I thought I had enough fuel, #10 plate Full forward, 191DVs, timing at 18*

Todd, sure would like to have twins, PM me your CC number. :smilielol:

I dont know what your fuel mods relate to as far as hp, but I would bet that once you add the sticks youll be better off, the 64/71/14 would be a slow spooling turbo on a auto, so I guess its a lil faster on a stick truck, however once its lit it should pull very well, ya gotta learn how to re-drive the truck, carry more rpms in each gear, wind that lil undervalved motor a lil higher if the valve train can take it:nutkick: :smilielol: .

[Jim]

ya gotta learn how to re-drive the truck, carry more rpms in each gear, wind that lil undervalved motor a lil higher if the valve train can take it:nutkick: :smilielol: .

Yep!:exactly: low end will usually be higher, top end will show improvement with the bigger charger. Thats why people go with twins!

[Warpig]

You're not pushing as much air at lower rpm's, welcome to the world of lag :smilielol:

[dieselnomad]

Thanks, guys, I think you guys are right. I gave it a good whaling (tm stupid MassHole term :smilielol:) today and here are the results.
Higher egts in lower cruising temps (I have been used to cruising around at 1200 rpms with the stock charger). When I got on it hard, from 2nd, it still smokes like a train but once the turbo lites it hauls donkey... Funny enough I still leave A LOT of smoke. I wonder if my timing has slipped forward? I've heard of that happening...

When I drove higher RPMs and more boost, it was cooler. And, it pulls harder than before.. I put it to the wood and the temps didn't go over 900!

tomorrow I'm going to give it a power ride on I-495, in the lower hills area (hopkinton to milford) and see how it does..... Still having long/ longer cool down periods than stock which has me wondering........... we'll see. Thanks for the input.

[TORQUE THIS]

:wtf2: :smilielol: I gave it a good whaling it hauls donkey... I'm going to give it a power ride

Dude, lay off the tea... :poke:

[dieselnomad]

You're not pushing as much air at lower rpm's, welcome to the world of lag :smilielol:

Yes, thanks, Tim. I now know what you are talking about. I still can't put down the twisting power that you blkrams put down but it's fun just the still ... :smilielol: :woohoo:

[dieselnomad]

:wtf2: ::

Dude, lay off the tea... :poke:

Dude, haulin' donkey is my way of saying haulin AZZ. :smilielol:

My tranny is slipping, i hope it snoes, i make some wicked coin when it snows, i like it when it snozes, like a 30 pack of bud with a snow storm. I make some good coin when it snows, maybe enough for my blizzard tranny, if you know what I mean. I mean my truck smokes a lot but like i smoked a white whale today, what a turd... :smilielol:

I'll give you a mini-burger if you can tell me who that posting impression is/was??? ! ?

And, Mark, got your 24 v can of whoopass ready? I'm ready with a shorter can and will get cha ! :woohoo: :falldownlaugh:

[TORQUE THIS]

Hey, Ryan is back... oh, it's just Art... :falldownlaugh:

Hey, here is to you and your LAG TERD 12 Valve... GFY! :smilielol:

[BlkRam1]

It will never cool down as fast as the stocker, cant you dial back your afc for less smoke? is that how its done?

[TORQUE THIS]

cant you dial back your afc for less smoke? is that how its done?

Todd, you feelin OK??? :smilielol: 12 Valve talk????

[PToombs]

He's a 12ver at heart! :smilielol: AFC could cut smoke, if he tightens the spring. But where's the fun in that? :wtf2:

[killed300ex]

yes if he wanted to loose the smoke turn the starwheel back makes a huge differance. I can go from blacking out a road with casual driving if im not carefull to only a slgiht haze with the same driving habbits. Good luck figuring out the new driving, im sure I will be in the same boat after this coming weekend :woohoo:
Evan

[dieselnomad]

What are you putting on, Evan?

I'm going to leave the star wheel where it is- And, I'm going to take Todd's suggestion and put the 370 injectors in and see how that goes. :woohoo: (won't be doing that 'til the end of this month though...)

[Ramdriver15]

Art my buddy out here had the same issue as you did. He ran a 14cm on his 64/71/... but was staying way to hot and having issues collin down. He called HTT and they recomended that he put a 12cm exhaust housing on it. Now he runs with the cooling power of the stock charger on low end and the high end he runs cooler also... (he has a 24v though, 6 speed manual [south bend dual disk], 180hp sticks, Home made big line kit, and oh yeah edge drag comp box that stays off due to the 500 hp with it off)

Just an FYI....

[dieselnomad]

I wonder if the exhaust housing could be it... perhaps.

Driving around today, this is what I saw:
a) around town driving, about 12 miles, average 35-45 MPH, average EGT 600+* At a stop light, the EGTs went up? ? :wtf2: After this drive, truck needed almost 5 minutes to cool down. Stock would have been able to shut down immediately probably.

b) Highway drive, i495, about 25 miles, average 65-70MPH, average EGT 800+*. If I accelerated moderately, it'd go to 900+*. I never put it to the boards.... When I stopped, the truck needed over 6 minutes to cool down. Stock would have been a couple minutes maybe.

Still seems like maybe a boost leak...

OR do you guys think these temps are normal? I don't like it, seems that running empty down the highway at 8-900* is stupid. If this is what this turbo is about, it sux.

[killed300ex]

What are you putting on, Evan?

I'm going to leave the star wheel where it is- And, I'm going to take Todd's suggestion and put the 370 injectors in and see how that goes. :woohoo: (won't be doing that 'til the end of this month though...)

:Signal73: old bd twins going down this weekend for them. My truck is addicted to his used parts :smilielol: You need those 370 brought back up this way?

[dieselnomad]

Cool, nice to get twins.

Nope on the 370s, I aleady have them. :HoleShotHolset:

[PToombs]

Art, put on some water/meth, or NOZZZZ. Just give her a shot before you shut it down. That will cool it right off! :exactly:

[dieselnomad]

Art, put on some water/meth, or NOZZZZ. Just give her a shot before you shut it down. That will cool it right off! :exactly:

Hi Pete,
A water meth system is gonna cost over 700 bills. From what I've looked at. I'm not against the water meth thing but I'm not driving crazy so I don't think it should be necessary-- With the current temps I can't even tow something, I'd cook right over... If I'm pulling 8-900F empty, what about a 5000 lb trailer and passengers? I think there is something else wrong, but I don't know what else...

Anyone, can you hear a boost leak? tonight while checking it out I thought I heard a hissing noise- but the compressor was running, fan, loud exhaust, etc... :stirthepot: I know I can try a soap/water check but it's either too cold or dark after-hours...

I dunno, if I can't get this sorted out, truck is headed back to stock, all stock...

[PToombs]

:omg: You might as well buy a 24v if you do that! :nutkick:

[95Cummins]

ahhhh dont lose hope Art, You'll figure it out. Might be you just have too big of a charger for the fuel your running now. The 370s might straighten it all out.

[TORQUE THIS]

Anyone, can you hear a boost leak? tonight while checking it out I thought I heard a hissing noise-

Yeah, head down to Derby and we'll check it out with the tester we have. And then bring some of them there mini burgers... :exactly:

[dieselnomad]

:omg: You might as well buy a 24v if you do that! :nutkick:

Pete, you're funny. Yea, that thought crossed my mind. As well as, sell the freak truck and buy a nice clean '97 and just strait pipe it.... just the same you've made me lighten up a bit regarding this.. :D

ahhhh dont lose hope Art, You'll figure it out. Might be you just have too big of a charger for the fuel your running now. The 370s might straighten it all out.

Dave, IDK. I do remember you writing in that a 64/14 might be too laggy for a stick 12v... but I went with it anyway. I don't know if fuel will fix it, I can still dump fuel like a mad man, I don't know what adding more will do. I guess if I don't find a leak I can add the 370s and see. If they don't help then I go either backwards or try a 62/12. I had originally thought about keeping the hx35 and building a twin setup with something like the S300.. maybe I should revisit this... Otherwise, it's rewind time. I don't like the way the truck drives now. it blows. Blows HOT AIR LOL :smilielol: :nutkick:

[TORQUE THIS]

http://www.newenglandturbodieselpower.com/Forums/showthread.php?t=1130

Post #4... :poke: :exactly:

[BlkRam1]

The exhaust housing is only $200 from HTT, see if they will take your 14 in on a trade, maybe re-check your egt gauge against another one.

[killed300ex]

yes the twins should be fun. for 200 id just buy a 12 and see if that helps I bet it will. Good luck figuring it out.

[Jim]

I wouldnt worry about egt's until I saw 1400 sustained. but thats just me lol

[killed300ex]

im with jim my trucks seen high egts for a while (some reason its been blessed with them since i bought it :smilielol: ) i have run sustained 1250-1300 while pulling up hills ect and when the head came off everything still looked good. I have even wrapped my 1600 pyro around a couple times :97DodgeCTD: NO issues yet

[Jim]

there was a guy on here who put on one of them 62/13 ss by HTT and noticed egt's were up on the low end, but better overall. Just one of the sore points of a bigger turbo.

[dieselnomad]

Thank you Jim. Well, the boost leak is gone and the EGTs are higher anyway. I guess I have to accept this as part of the world of "TURBO LAG" :smilielol: Thanks to all that chimed in here, you kept me hopeful and others insight is always helpful. Now ya'll can get back to makin' fun of me and tell me, told ya so.. ;-) :smilielol:

I tested it out today, cruising around, higher EGTs, BUT higher RPMs and faster speeds, after boost is built, it stays below 1000*. Pulls pretty darn hard too I might add....

So, if I want it cooler, I guess I can do the following: push plate back, reverse time and /or star wheel (:smilielol: :wtf2: )

Or, maybe pop in bigger injectors and go with a water-meth spray... But, I have to live with what I have for now since I need to save some money too. I might put the 370s in later this month and will report back...

Overall I am pretty good with the performance now- I used to redline the EGTs with the stocker but I can't really do that now with the bigger charger. And, the cooltwist IC is pretty cool, no pun intended...

So, with my recent upgrades done some pix are in order. Not too night though, I have to go back to work in a few... :(

[Jim]

I have to go back to work in a few... :(

Mo money for more BomBs!:muahaha:

[dieselnomad]

Mo money for more BomBs!:muahaha:

I wish, I get paid the same if it's 5 hours or 15 hours.. and it's usually closer to the worse off for me :nutkick: :97DodgeCTD:

[Jim]

:crazy: Screw that! Thats why people get a gun and come in to work and shoot up the joint! :professor: Dont do it art, were here for ya:97DodgeCTD:

[PToombs]

Yeah bud! We'll bring you smokes while you're in prison. :smokin: If you get conjugal visits, we'll get a hooker for ya. :warpig: probably knows one that's almost clean. :AJ:
:falldownlaugh: :smilielol:

[dieselnomad]

You guys are funny. Won't happen with me. When I get disgusted or too irritated I leave. Speaking of which, I think I'm gonna leave work in a few :smilielol:

[TORQUE THIS]

You guys are funny. Won't happen with me. When I get disgusted or too irritated I leave. Speaking of which, I think I'm gonna leave work in a few :smilielol:

Really? We heard you were hanging onto the urinal and cryin... :smilielol:

[dieselnomad]

Really? We heard you were hanging onto the urinal and cryin... :smilielol:

:falldownlaugh: YA, I like those CAKES in DEAH... :nutkick:

[PToombs]

Don't eat the peppermints in the bathroom! :97DodgeCTD:
They taste like pee! :omg:

[killed300ex]

new egts see only about 1100 max thats from no boost to all out :woohoo: my highway temps are down to about 600-650 at 75. Realizing how bad I needed some more air now :HoleShotHolset:

[Jim]

You gotta go ahead and rub it in on Art's thread dontcha:stirthepot: :smilielol:

[dieselnomad]

I'm not sure, but I think my temps might be lower then Evan's at this point. Will check it out tomorrow. :smilielol:

[killed300ex]

I hope for him they are lower, means hes got a nice runnin truck and its already one up on evryone else by being properly valved :exactly: Dont think he would want my setup on his head setup :TqT: I hope my truck can take it haha
Evan

[killed300ex]

well I must have jinxed myself saying that
Went out took the truck for a spin got out all I could smell was antifreeze :wtf2: Start pokin around its running down the block under the #5 exhaust port. and onto the bell housing by running I mean a steady piss of clean antrifreeze. You can see antrifreeze sitting on the lip of the block right under the exhaust manifold as well. Truck runs well no white smoke at all doesnt over heat but loosing alot of coolant. Must have blown out right there. I think I am going to go light a fire under the truck right now, I have had it.

[Jim]

Id give scott a call back thats :bs:

[killed300ex]

trust me he will be getting a call first thing monday morn. Read what I just posted in the Coffe night thread.

[sooter]

can you say NPD?

[TORQUE THIS]

How do you spell that? :falldownlaugh:

[killed300ex]

can you say NPD?

pending what scott has to say it might end up at npd and if i can find reasonable evidence that it was tied back to the installation he will be getting the bill. We will see what he has to say tom morning when i call. hope it doesnt go back down there as I dont want to have the other side of my truck match his work already :nutkick:

[dieselnomad]

that really sux, Evan. Sorry to hear it. Give 'em a chance though, maybe something can be worked out. But, it has been one tough winter for you and your truck.

[killed300ex]

that really sux, Evan. Sorry to hear it. Give 'em a chance though, maybe something can be worked out. But, it has been one tough winter for you and your truck.

im gonna give him a chance but I dunno 2 hour tow each way gets old quick. And you aint ....ting about a though winter for this truck. You check your temps today?

[dieselnomad]

No, had a family get together... truck sat in the driveway looking dumb all day :falldownlaugh: Tomorrow I'll give it a go on the way to work.. :HoleShotHolset:

Keep us tuned in about your truck. Unfortunately that's not like something that can be fixed in a few hours either.

[killed300ex]

yea going to call scott this morning before I head out of town for work luckly as long as I take it extremly easy on the truck it doesnt seem to leak. So I can still take it to work and such its just something that needs to be taken care of

[sooter]

i'm assuming the #5 cylinder is blowing compression out a little bit and blowing coolant out:idea: hopefully scott fixes it...accidents do happen, and heads are known to be pissy. maybe one of the studs wasn't holding for whatever reason? or the o ring wasn't set right? or the gasket was damaged upon installation? i dunno..

[killed300ex]

Just got off the phone with him dont think hes happy about it but im bringing it down next week for him to take a look at. Made perfectly clear that I dont have the funds to toss another 1k at this truck he seemed to understand and i think he relized that it is prolly for installation we will see what happens.

[sooter]

well, that's good. i hope he fixes it. just a lot of freakin work..

[dieselnomad]

im gonna give him a chance but I dunno 2 hour tow each way gets old quick. And you aint ....ting about a though winter for this truck. You check your temps today?

I hope you get your truck sorted out, Evan.

Checked my temps today. Cruising at 65 w/ 3 or so lbs of boost, 600*. Get up to 75, 650-700* with probably 5-8 lbs of boost (definitely under 10).

I did one dangerous (dangerous for the truck, no one else) full hammer down on the highway on ramp (up a nasty hill too) - too the floor, 40-45lbs of boost, only got up to 1000*. Needless to say, I won't do that very much if really at all (intentionally). But, I'm pretty happy with the setup right now. And, I think the new IC is really doing a good job... :woohoo:

[Jim]

the new IC is really doing a good job... :woohoo:

Thats my next, and last big expense I believe. Im quite happy with the power I have now, its just a matter of getting the truck to the point where it can safely handle that HP level on a daily basis, and I think the IC is the last thing I can think of......:idea:

[TORQUE THIS]

Thats my next, and last big expense I believe. Im quite happy with the power I have now, its just a matter of getting the truck to the point where it can safely handle that HP level on a daily basis, and I think the IC is the last thing I can think of......:idea:
:bs: :yankyank: :falldownlaugh:

[PRattenbury]

Thats my next, and last big expense I believe. Im quite happy with the power I have now, its just a matter of getting the truck to the point where it can safely handle that HP level on a daily basis, and I think the IC is the last thing I can think of......:idea:

Let me think about it awhile. I'm very good at spending other people's money... :woohoo:

[TORQUE THIS]

Come back up here, we like watchin you spend YOUR money... :smilielol: :falldownlaugh:

[dieselnomad]

I'm happy with my new IC, it's a Cooltwist. I was kind of forced to replace since the input tank was blown.. big leak. If it wasn't blown, I wouldn't replace... but I'm pretty sure I don't have the boost levels you do either :smilielol:

[PToombs]

Let me think about it awhile. I'm very good at spending other people's money... :woohoo:

I think you're pretty good at spending your own money too! :poke:

:HoleShotHolset: