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exhaust temperature

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Pulling Forum
Forum Description: Forum dedicated to Tractor and Garden Pulling
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=98305
Printed Date: 24 Nov 2024 at 8:39pm
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Topic: exhaust temperature
Posted By: 200 allis
Subject: exhaust temperature
Date Posted: 26 Nov 2014 at 12:25pm
I have 200 with 301 have 390 head on pump is hx 35 turbo looking for ideas to lower exhaust temperature.



Replies:
Posted By: Tim-tn
Date Posted: 26 Nov 2014 at 3:25pm
If you use it only for pulling and rules allow it, water injection will help.


Posted By: Peterson
Date Posted: 26 Nov 2014 at 7:16pm
How hot is it getting?

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7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2


Posted By: 200 allis
Date Posted: 26 Nov 2014 at 7:59pm
Around 1800 close to 1900 I back off it.


Posted By: 200 allis
Date Posted: 26 Nov 2014 at 8:00pm
I am running 12cm exhaust housing was wondering if a 14cm would help


Posted By: 200 allis
Date Posted: 26 Nov 2014 at 8:02pm
Water is what I was leaning towards easier to hide then air intercooler


Posted By: Peterson
Date Posted: 26 Nov 2014 at 8:04pm
Wow that's pretty hot!!!! Wastegate hooked up? Boost pressure?

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7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2


Posted By: 200 allis
Date Posted: 26 Nov 2014 at 8:05pm
Waste gate tied shut


Posted By: DrAllis
Date Posted: 26 Nov 2014 at 8:07pm
Spray windshield washer fluid into the turbo as far away from turbo as you can get. Rig up a nozzle to spray 12 ounces in 30 seconds to start. Too much will bend connecting rods.....start with 12 oz in 30 secs. Put a switch on the throttle so it runs on the juice 1 inch before full throttle. Always get out of the throttle just before you stall it to prevent water logging the engine. We used to stick a windshield washer tank inside the air cleaner body....out of sight.


Posted By: Peterson
Date Posted: 26 Nov 2014 at 8:07pm
Whats your boost pressure?

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7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2


Posted By: 200 allis
Date Posted: 26 Nov 2014 at 8:15pm
Would one of the water injection kits that read off boost work.


Posted By: 200 allis
Date Posted: 26 Nov 2014 at 8:18pm
Actually I broke my boost gauge before last pulls so I don't know what it was running. Ed set up pump and injectors and it runs strong.


Posted By: Peterson
Date Posted: 26 Nov 2014 at 8:27pm
Well more than likely you are out of the compressor MAP of the turbo with getting that hot. Also you've more than likely have melted the divider and the exhaust wheel of the turbo getting that hot. I would recommend atleast a hx40 with the 10 blade turbine and the 60mm inducer.

-------------
7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2


Posted By: Peterson
Date Posted: 26 Nov 2014 at 8:31pm
Or go with a Borg Warner turbo in a comparable size. Pushing anything over 40 psi is just blowing hot are into the motor.

-------------
7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2


Posted By: 200 allis
Date Posted: 26 Nov 2014 at 8:33pm
I'm only turn 3000 rpms it would have enough to spin a hx40. Nothing melted still running fine. How are guys keeping them cool with a 450 head.


Posted By: one54dodgetruck
Date Posted: 26 Nov 2014 at 8:51pm
would advancing the timing help? how about quad turbos

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2 WDs
B
B112
D14
D15 shuttle
180
185
7040
Hd7w
D14
D15
185
7040 pd


Posted By: DrAllis
Date Posted: 26 Nov 2014 at 9:05pm
Advancing timing 2 degrees at a time will help, BUT there is a point of tooo far advanced.


Posted By: O.P.S. Heads
Date Posted: 27 Nov 2014 at 9:22pm
Keep it simple. Add water injection if allowed.

Advanced timing may cool it off a little. I would not go past 38 degrees and that would be if you have hardened connecting rods.

Before you go changing exhaust housings it would be good to have peak pressures on both he intake and exhaust sides.

The HX40 may be too big with a .390 pump at 3000 RPM. In theory the larger exhaust wheel on the 40 would reduce exhaust temps. There are three different exhaust wheels for a 40.

Again in theory a .450 pump may cool it off too. More fuel = cooler exhaust temps IF you use the same turbo. You may have to use a larger exhaust housing to keep the turbo from over speed / over boost as more fuel will drive the turbo harder.

Shoot for 1400 - 1500 peak degrees max.


Posted By: AC200Puller
Date Posted: 29 Nov 2014 at 9:58am
Water injection works for me. I have a pressure switch in the manifold that will turn on at a preset boost and shut off when below that.


Posted By: Slade (TN)
Date Posted: 03 Dec 2014 at 8:14am
I'm surprised you're not having trouble with the head at those temps

Slade


Posted By: Peterson
Date Posted: 03 Dec 2014 at 8:49am
Im surprised a piston or two are not melted...

-------------
7095-685I at 255hp, 8070-225HP,8050-210Hp,8030 with 155HP,220 with 670T engine with A-pump, 7580, 185 with 140HP, 2-6080's,6070, S4 D17,wd45,CA,st34 agco, S1 D17 with 3500MK2


Posted By: O.P.S. Heads
Date Posted: 03 Dec 2014 at 1:12pm
I have never seen a 301 puller (with original AC pistons - not aftermarket) melt the tops of pistons due solely because of high EGT's. They will crack heads and drop exhaust seats (if used)like there is no tomorrow as Slade said.


Posted By: 200 allis
Date Posted: 04 Dec 2014 at 10:38am
I was wondering if some of it could be a false reading maybe some fuel ignite in exhaust manifold.


Posted By: DrAllis
Date Posted: 04 Dec 2014 at 6:35pm
So, when you are at a night time pull, are you seeing fire out the exhaust pipe?????


Posted By: 200 allis
Date Posted: 05 Dec 2014 at 5:18pm
Haven't pulled at night but have played around the farm with it and flame comes out of pipe.



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