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Back in Black
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Discussion Starter #1
Well i have a feeling i am going to get bashed on for posting this, but i am interested, and my new s480 needs some help. it pulls like crazy after 2600rpm but anything before that and its a pig.

My mods are in my sig, I am thinking maybe upgrade my injectors this spring but dont think that will cure my lag.

What all is involved with running compounds? i want to use my s480 as my big turbo, is a 38r too small? cann it be bb if my large turbo is jb? does it HAVE to be wastegated? any help is very appriciated. what is a realistic cost if i already have the big turbo and can make my own IC piping?

can someone explain the route of the air? intake all the way to the exhaust of the big turbo?


Thanks,

Kenny brady
 

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Why not look at going with a modded S300 to go with it? I would seriously give Zane at WOP a call. They work with [email protected] Bell and from what I have seen he is a master at building and setting up compounds and you will find no one better than WOP to fab it all up. That is who setup Blowbys compounds.

I have been wondering how well matched the WOP GQSSB and KASB would be for compounds.
 

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Just bite the bullet and buy a new Garret gt42r. You can have that set up done on a weekend and be done with it. Thats my answer cuz I dont savvy compounds :doh:
 

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HRT Performance
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Well i have a feeling i am going to get bashed on for posting this, but i am interested, and my new s480 needs some help. it pulls like crazy after 2600rpm but anything before that and its a pig.

My mods are in my sig, I am thinking maybe upgrade my injectors this spring but dont think that will cure my lag.

What all is involved with running compounds? i want to use my s480 as my big turbo, is a 38r too small? cann it be bb if my large turbo is jb? does it HAVE to be wastegated? any help is very appriciated. what is a realistic cost if i already have the big turbo and can make my own IC piping?

can someone explain the route of the air? intake all the way to the exhaust of the big turbo?


Thanks,

Kenny brady
I don't have to say "I told you so..." because you know it now.

How about some specs on your S480 to help you out?

I am pretty sure a properly spec'd S465 combined with an external wastegate on each charger for control would be a good start for a nice compound setup.
 

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Discussion Starter #6
I know you told me, i had tosses compounds around in my head a while and i just couldnt see how the s476 like you stated would be enough.....

my turbo is an s480/82, with a 1.0 housing that will be upraded to a 1.32 or 1.5 housing if i do compounds, has a t4i foot on it.

Im not sure on the small turbo, i was thinking a 38r bc it would spool quick and i could use my stock uppipes and pedistal for a mount, i wouldnt have to buy a whole new mount.

How does mounting the secondary turbo work? can i use the parts from my h2e mount?


i tried the search but didnt find many answers to my questions, just the same things repepted over again, everyone wanting to do it but noone went though.
 

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HRT Performance
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I know you told me, i had tosses compounds around in my head a while and i just couldnt see how the s476 like you stated would be enough.....

my turbo is an s480/82, with a 1.0 housing that will be upraded to a 1.32 or 1.5 housing if i do compounds, has a t4i foot on it.

Im not sure on the small turbo, i was thinking a 38r bc it would spool quick and i could use my stock uppipes and pedistal for a mount, i wouldnt have to buy a whole new mount.

How does mounting the secondary turbo work? can i use the parts from my h2e mount?


i tried the search but didnt find many answers to my questions, just the same things repepted over again, everyone wanting to do it but noone went though.
Buy an S465/82 and you can use the 1.0 T4i housing that you currently have and drive the truck. A backpressure gauge will tell you how hard you can push it.

You need to add in a wastegate for control. There aren't many options for this that I am aware of, but I am building a adapter that goes between the mount and the turbo housing for a wastegate on an H2E turbo right now - basically rotating the housing around so it leaves the turbine outlet in the same location - but since its not built it might not work. I would get the 1.32 or the 1.50 T6 foot for your S480 and make sure you wastegate it as well. For that I would use one of Engineered Diesels wastegate adapters for cleanliness.
 

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Discussion Starter #8
use the housing off my 80 on the new turbo and use that as a little turbo and use my 80 with a new 1.5 housing as the big turbo? that seems right, how much do wastegates cost? how would i make a mount for the turbo that will sit behind the headlight?
 

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HRT Performance
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use the housing off my 80 on the new turbo and use that as a little turbo and use my 80 with a new 1.5 housing as the big turbo? that seems right, how much do wastegates cost? how would i make a mount for the turbo that will sit behind the headlight?
Wastegates run $500-1000 range depending on what you buy. There are lots of different options for gates.

I would build a mount that goes underneath the AC pump - and has a t6 foot on the turbo side - then has another t6 foot or vband on the opposite side - then route the exhaust pipe from the high pressure turbo to this mount. That way you can pop the intermediate pipe off and get to your valve covers without pulling the big turbo.
 

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I should add that if starting from scratch and sizing compounds I probably wouldn't have sized the S480 with the 82mm turbine - but it should work with some tuning. I would wastegate the small turbo and dump it right to the exhaust. Don't run it to the atmosphere charger.

All this is a quick guess - so research is needed on your part.

Get the S465 and make your truck drive able - then figure out the rest.
 

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Discussion Starter #11
okay, so 1000$ for the s465, $1500 for both gates, and about 300 worth of piping, this can be done for around 3 grand?

see if this is right,

airfilter, s465, intake of s480, intercooler, engine.

headers, t4i flange of s468, exhaust goes to t6 flange of s480 and then that would go to my down pipe?
 

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Discussion Starter #12
I am thinking i should have gotten an 88 exducer instead of a 81, but i thought the 82 would be more streetable as a single.
 

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HRT Performance
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okay, so 1000$ for the s465, $1500 for both gates, and about 300 worth of piping, this can be done for around 3 grand?

see if this is right,

airfilter, s465, intake of s480, intercooler, engine.

headers, t4i flange of s468, exhaust goes to t6 flange of s480 and then that would go to my down pipe?
I am thinking i should have gotten an 88 exducer instead of a 81, but i thought the 82 would be more streetable as a single.
Airfilter to S480 to S465 to IC to Engine.

You have the exhaust basically right.

88mm exducer sounds better in my mind - but again I haven't run any real numbers on this setup.

Cost depends heavily on your fab skills.
 

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I think a 38r would not be a bad setup with the s480, but i would use the 1.15 housing and wastegate it externally. I use a 38r with a 88mm gt47. We built a mount off the front of the ac compressor bracket and kept the ac. Charles runs the same chargers, but he located the 47 closer to the 38 as he does not run an ac compressor. Being as you already have a t4 mount, it may be cheaper just to go with a smaller t4 mount turbo and then relocate your 480, instead of buying a 38r and the stock stuff again if you dont have it. Also i talked to Pius once about compounds and he mentioned bb turbos, while overly expensive, are great in compounds because the bearings will tolerate a higher sideload supposing the setup is less than ideal and you are running pressures that are out of whack.

Id definately gate both turbos, as it will allow you to run just about any boost youd like.





 

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lol I was going to suggest looking at charles setup forgot about aggies..nice pics. could call empire and see what they could come up with. isnsta boost would be nice and prtty sure it would spool that turbo.
 

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Aggie,

How often you end up having to clean and polish that piping? :D I think that was a cool way of mounting the turbo so as to keep AC. AC is a must for me no way I would give that up period let along in a DD. Chuck is a beast for handling that summer heat down there with no AC. Thinking outside the box is always interesting.

Very nice looking setup!!!

What kind of boost and backpressure are you seeing with that setup?

Power?
 

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Tarm,

Beleive it or not under the heat wrap is 304 stainless lol, itd polish up like a mirror if i wanted. The exhaust is some leftover 409 strainless 5 inch i had, and i just wipe it down when i wash the truck. i wasnt gonna ditch the ac either, not in south/central texas. Its not a dd but i like to drive it plenty so why fry lol.

The one thing astheticly i want to change is the cold pipe running from the innercooler to the 38r. it is the factory ic pipe from that side cut and adapated to 4 inch with a cut down garrett boot. It is not pretty but we had to get it done quick to make it to the crandall race this past year, and it works flawless so we havent gotten around to building a purdy one lol.

It is a stock motor with a ton of miles and just a-1 studs on stock gaskets and 910 springs, so i keep the gates dialed down. the 47 makes 35ish lbs depending and overall i keep it aorund 58-59lbs, i havent gotten to log the drive pressures much yet but from what ive seen it stays real close to 1:1. Havent got it on a dyno but its gone [email protected] and race weight that night was 7000lbs, so i guess that puts it in the 550ish range.
 

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Stroken, have you thought about an SC for a first stage?
 
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