Cummins isx tuning - Competition Diesel.Com

Ram12vcummins · 05-14-2016, 11:38 AM

Not sure if I should put this here.

My father has picked up an 07 w9 with a isx 565. We are replacing the entire Underhood harnesses due to fire. We are also tossing the idea of an egr delete and some tuning. Have no experience with this engine so any pointers are appreciated. After some reading I've found a few places saying removing the egr isn't necessary as it is fine with proper maintenance. But when issues arise can be annoying to find them. What would you guys reccomend and who for the tuning? I'm pretty sure we are wanting to delete it but have it look factory as if it were still in place.

Meyers Farms · 05-14-2016, 09:49 PM

I'm Interested in this as well.

Bustedknuckles · 05-14-2016, 11:23 PM

Pull the egr cooler and weld freeze plugs in both ends and het it tuned. Get that egr off asap. ISX engines are junk imo, we have 2 in the shop right now with holes in the block and 1 with broken rings.

Ram12vcummins · 05-14-2016, 11:57 PM

Pull it off right under manifold? An weld one plug in there an one at intake pipe?

Bustedknuckles · 05-18-2016, 12:18 PM

Quote:

Originally Posted by Ram12vcummins

Pull it off right under manifold? An weld one plug in there an one at intake pipe?

Exactly!

cumisx475 · 05-18-2016, 12:36 PM

My dad went through this on a 06 378. Deleted the egr and put a different intake pipe? on it. Hourglass shaped piece in intake manifold. Tuned it and it ran good.

ELM repair in Edgar WI did the work.

I will second that they are terrible engines though, they don't seem to be very long life, before and after the egr and tune.

cumisx475 · 05-18-2016, 12:36 PM

And he got rid of the VGT and put a hx60 on it.

*zfaylor* · 05-18-2016, 12:43 PM

Getting rid of the VGT usually leaves us with unhappy customers. We leave them on unless they are fully aware their exhaust braking is going to be much worse.

cumisx475 · 05-18-2016, 01:23 PM

I didn't know that the ISX used it for exhaust braking. Didn't affect the jake.

*zfaylor* · 05-19-2016, 07:51 AM

The vgt turbo is used for additional exhaust braking on top of the jakes on an isx. There is a loss of braking power.

jfaulkner · 05-19-2016, 10:20 AM

Quote:

Originally Posted by zfaylor

The vgt turbo is used for additional exhaust braking on top of the jakes on an isx. There is a loss of braking power.

Not as drastic on 870 as 871/2250/2350. Can bring 75% back with a cam.

*zfaylor* · 05-19-2016, 10:22 AM

Quote:

Originally Posted by jfaulkner

Not as drastic on 870 as 871/2250/2350. Can bring 75% back with a cam.

Wouldn't argue that one bit. Just wanted to make them aware as it is something overlooked more than not when deletes are discussed.

Ram12vcummins · 05-19-2016, 08:57 PM

Quote:

Originally Posted by Bustedknuckles

Exactly!

Where should it be pulled off at manifold? I notice a smaller pipe running beside the cooler and also going into cooler.

05hummincummins · 05-20-2016, 09:00 PM

Quote:

Originally Posted by jfaulkner

Not as drastic on 870 as 871/2250/2350. Can bring 75% back with a cam.

Very interested. What cam are u using to get the jake back ?

05-14-2016, 11:38 AM	#1
Ram12vcummins Name: Ram12vcummins Title: Too Much Time Status: Not Here Join Date: Mar 2015 Member`s Gallery Posts: 1,659	Cummins isx tuning Not sure if I should put this here. My father has picked up an 07 w9 with a isx 565. We are replacing the entire Underhood harnesses due to fire. We are also tossing the idea of an egr delete and some tuning. Have no experience with this engine so any pointers are appreciated. After some reading I've found a few places saying removing the egr isn't necessary as it is fine with proper maintenance. But when issues arise can be annoying to find them. What would you guys reccomend and who for the tuning? I'm pretty sure we are wanting to delete it but have it look factory as if it were still in place.

05-14-2016, 09:49 PM	#2
Meyers Farms Name: Meyers Farms Title: Too Much Time Status: Not Here Join Date: Dec 2007 Location: SW Ohio Member`s Gallery Posts: 2,508	I'm Interested in this as well. __________________ 2013 Ford F-450 6.7 Auto, 4x4, Crew Cab

05-14-2016, 11:23 PM	#3
Bustedknuckles Name: Bustedknuckles Title: Honey Badger Status: Not Here Join Date: Jul 2009 Location: Hagerstown, MD Member`s Gallery Posts: 1,778	Pull the egr cooler and weld freeze plugs in both ends and het it tuned. Get that egr off asap. ISX engines are junk imo, we have 2 in the shop right now with holes in the block and 1 with broken rings. __________________ 2004 Lb7: 06 front clip, Idaho-Rob tunes , PPE trans, ML converter, Airdog, ARP head studs, s366.

05-18-2016, 12:43 PM	#8
zfaylor Name: zfaylor Title: Comp Diesel Sponsor Status: Not Here Join Date: Nov 2010 Location: P-TOWN!, Indiana Member`s Gallery Posts: 5,024	Getting rid of the VGT usually leaves us with unhappy customers. We leave them on unless they are fully aware their exhaust braking is going to be much worse. __________________ 2015 half ton heavy chevy 81 Fairmont LS project Many yard ornament projects... North American Turbo

05-19-2016, 07:51 AM	#10
zfaylor Name: zfaylor Title: Comp Diesel Sponsor Status: Not Here Join Date: Nov 2010 Location: P-TOWN!, Indiana Member`s Gallery Posts: 5,024	The vgt turbo is used for additional exhaust braking on top of the jakes on an isx. There is a loss of braking power. __________________ 2015 half ton heavy chevy 81 Fairmont LS project Many yard ornament projects... North American Turbo

05-14-2016, 11:57 PM	#4
Ram12vcummins Name: Ram12vcummins Title: Too Much Time Status: Not Here Join Date: Mar 2015 Member`s Gallery Posts: 1,659	Pull it off right under manifold? An weld one plug in there an one at intake pipe?