turbo
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=86236
Printed Date: 26 Jun 2024 at 12:07am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: turbo
Posted By: 200 allis
Subject: turbo
Date Posted: 11 Mar 2014 at 7:19pm
|
i have read on here guys using hx 35 turbos but there are a bunch of different ones thought maybe someone would know sizes to use
|
Replies:
Posted By: O.P.S. Heads
Date Posted: 11 Mar 2014 at 9:38pm
Posted By: O.P.S. Heads
Date Posted: 11 Mar 2014 at 9:41pm
|
And how much fuel delivery? What pump are you using?
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 6:05am
|
I'm running 3000 rpm and standyne pump with 390 head with 7080 injectors opened up more
|
Posted By: O.P.S. Heads
Date Posted: 12 Mar 2014 at 9:29am
Most any HX35 you find will have the same turbine wheel (70mm in and 60mm out) so that's easy. You are right. There are a few different compressor wheels and covers. I would start with any of them that have a 65mm inlet (2.20 inches). The seven blade version would be optimum, but the eight blade will work fine too. Find the tightest turbine housing you can. I would even use the 12cm waste gate housing with the gate tied shut. The issue there is that you have to make an adapter plate between the exhaust manifold and the Holset turbo to convert from the T4 pattern on the manifold to the T3 pattern on the turbo. They offer these plates on Ebay if needed.
I have heard that an Air Research Turbine housing can be used on the Holset turbo by machining the I.D. of the Air Research housing. That would be a slick installation if it could be done. Use the same exhaust elbow to go through the hood. I haven't tried it, just heard about it.
How big did you make the injector orifices and how much fuel does your pump deliver?
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 12:35pm
|
thank u for the info. I figured on making a adapter plate. When u say 12cm housing where is that measured. Do recommend using a used turbo. I am not sure of orifices size or fuel. A guy in pa set it up the for me.
|
Posted By: O.P.S. Heads
Date Posted: 12 Mar 2014 at 2:51pm
The size of the turbine housing is stamped or cast into the housing. Typically on the outside near the foot where it bolts to the manifold or can be stamped just inside of the inlet. I think the 12cm wasted housing was very common on Dodge trucks with the 5.9 Cummins.
A used turbo will work fine as long as it is in good condition.
My question on the injector orifice size is important. If they are too big it won't run very good no matter what the turbo is. I would say a maximum of 4 holes with .020" orifices. It may have worked just fine with the 7080 injectors depending on the amount of fuel the pump is delivering. Be sure the injection pump timing is no more than 34 degrees if your conn rods are not heat treated.
|
Posted By: 2wise4agm
Date Posted: 12 Mar 2014 at 5:14pm
|
What size are the 7080 tips?
|
Posted By: DrAllis
Date Posted: 12 Mar 2014 at 5:20pm
|
7080 tips factory stock are .0148" I think.
|
Posted By: O.P.S. Heads
Date Posted: 12 Mar 2014 at 5:24pm
Yep, I remember them as being just under .015" X 4 holes. I would guess the 7580, N5, N6, nozzle tips are the same as long as it is the Allis injector - not Bosch?
One other thing, the newer, low profile, o-ring type Allis injector bodies have a larger fuel passage through them from the line to the tip. That helps performance too. The older ones can be drilled, but it's not much fun.
|
Posted By: DrAllis
Date Posted: 12 Mar 2014 at 5:36pm
|
7080-7580-old N6 with AC injectors should all be the same .0148" 4 hole tips. I don't think I ever saw an N5 with AC injectors, but if so, they were smaller holes and the Roosa pump had .290" plungers versus the N6 at .310" plungers and 2850 top rpm's.
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 5:37pm
|
I think the orifice are .020 and definitely 4 hole
|
Posted By: O.P.S. Heads
Date Posted: 12 Mar 2014 at 5:40pm
|
If that's what they are you should be OK.
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 5:44pm
|
It was funny u had mentioned the timing because mine is set at 35 degrees. I had ran tractor one time with this fuel set up and stock turbo and lost a cylinder after pull. Took head off thought exhaust valve were really tight. Thought they had carbon hanging them open cause egt. Got hot then I found bend rod
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 5:45pm
|
It ran real strong pull but that was it.
|
Posted By: O.P.S. Heads
Date Posted: 12 Mar 2014 at 5:55pm
I prefer 32 degrees myself especially at 3,000 RPM.
Is the head still off? Do some smoothing up of the ports if it is and add a nice valve job. You will be happy you did.
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 6:20pm
|
Head is still off I had it gone over 30 pound heavier springs heavier keepers,valve job and he cleaned the ports out some
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 6:23pm
|
When they set the pump up they told me to put it at 35 degrees u thinking It would be better 32. I'm debating whether to have the rods harden
|
Posted By: O.P.S. Heads
Date Posted: 12 Mar 2014 at 6:29pm
If you have the rods hardened properly you will have no issues. Yes 32 degrees is safer. With hard rods you could run 35 - 36 degrees. Much more than that and it may not lug as well as it would from 32 - 34.
My buddy has a set of six for $165.00 each. You would need to use new bolts when you install them.
Think about it: If you have already folded a rod and you plan on making more power, you will probably fold more rods if you don't change something.
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 6:37pm
|
The rods are already harden
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 6:42pm
|
I meant the rods your buddy has are harden
|
Posted By: O.P.S. Heads
Date Posted: 12 Mar 2014 at 6:45pm
|
Yes they are hard. You will not bend them.
|
Posted By: 200 allis
Date Posted: 12 Mar 2014 at 6:53pm
|
I am interested in them and where could I get new bolts.
|
Posted By: O.P.S. Heads
Date Posted: 12 Mar 2014 at 7:32pm
Posted By: injpumpEd
Date Posted: 13 Mar 2014 at 12:34pm
In order for my Roosa fueled 426 to run right, I've got to be in the 40* range. Hardened rods are a must.
-------------
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
|
|