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-   98.5-02 24V P-Pump Conversion (https://www.cumminsforum.com/forum/98-5-02-24v-p-pump-conversion/)
-   -   Egts out of control (https://www.cumminsforum.com/forum/98-5-02-24v-p-pump-conversion/2499611-egts-out-control.html)

Teamramrod 04-30-2019 10:01 AM

Egts out of control
 
I have a 2001 p pumped 24v 150 injectors and borgwarner 366, 4K governor spring in pump no fuel plate. What should I try doing to get egts down? Once boost comes up the egts clime out of control, should I put a fuel plate back in or adjust the afc or go up with the timing? Has just a haze of smoke before 1800 rpm then it turns to solid black cloud of smoke once turbo spoils up at 1800 rpm. Egts hit 1200 almost instantly

Austin The DieselTech 05-16-2019 12:13 AM

Put the plate back in.

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Teamramrod 05-16-2019 04:05 PM

Would more timing help?

Austin The DieselTech 05-16-2019 10:40 PM

Where is your timing set?

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Teamramrod 05-17-2019 02:12 AM

It’s pin timed right now so about 13.5 I plan on putting it at 22

jkidd 05-17-2019 10:33 AM

the old s366 is quite laggy. Even a new super core or center section on an SXE366 would be a nice upgrade. Better turbine wheel/same fitment and more flow from the compressor and 0.66AR cover will mean faster spool and 10% more air.

Austin The DieselTech 05-17-2019 10:48 AM

Is this gonna be a street truck. I have mine set at 18* but I also have compounds. That 366 is part of the issue.

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Teamramrod 05-17-2019 03:58 PM

It’s gonna be for the street but not a daily driver and some sled pulling. It has a 1.1AR on the s366 right now. Should I buy a new turbo or just switch to a .90AR? In the future it’ll get compounds but the money isn’t there for that right now.

Austin The DieselTech 05-18-2019 11:09 AM

Quote:

Originally Posted by Teamramrod (Post 28983873)
Itís gonna be for the street but not a daily driver and some sled pulling. It has a 1.1AR on the s366 right now. Should I buy a new turbo or just switch to a .90AR? In the future itíll get compounds but the money isnít there for that right now.

Dropping down to a .9 housing will help with spoolup some. I would set your timing at 18*-20* and see how it drives after you put the plate back in.

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Teamramrod 05-18-2019 03:30 PM

Well the goal is 800hp so I’d rather get a different turbo then start defueling it with putting the plate in. I’ve heard 24v can’t spool a s400 frame turbo good enough to drive on the street. Is this true?

Cummins_freak777 05-26-2019 05:30 PM

No thats not really true. What you have to remember is that spooling characteristics are kinda up to how the end user prefers to drive. One person may think a turbo is crazy laggy while the other thinks its not too bad. Now an s400 is not going to be the quickest spooling turbo you could buy but I do believe there are some trick things you can do to help them out. For example anytime you can open up the pathway into the cylinder and decrease the resistance of the air going in I.E. lowering the boost a little by nature you can pickup some spoolup. Boost is simply a measure of restriction in the head so I have a personal theory I'd really like to see done and I somewhat have in race engines. If you went ahead and milled the intake off and did a good port and polish and maybe a cam I believe you would see a noticeable increase in how well the turbo spools. This being because you decreased the resistance of the air getting in and because you were able to get the air in faster and a cooler charge and density then that also means youll begin to burn your fuel sooner and because of that youll be spooling the turbo faster on the exhaust side. Ive heard the cr guys and even the mechanical mafia say they've made around 1200hp on 30psi of boost or even 800hp with 15psi of boost. Boost is just a measurement of restriction so decreasing boost but adding flow means you can make the same or more power with less pressure.

Teamramrod 05-26-2019 06:08 PM

Thanks that was supper helpful so I guess I better look into a cam and having my head port and polished sooner then I was planning maybe before I spend the money on the s465 turbo I want. Can any shop do a decent job porting and polishing or is there a shop known for it out there?


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