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View Poll Results: Which Turbine on S476?
87mm 5 55.56%
92mm 1 11.11%
96mm 1 11.11%
Different Turbo 2 22.22%
Voters: 9. You may not vote on this poll

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  #1  
Old 03-21-2018, 07:05 AM
Bdsankey Bdsankey is offline
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Default FI ETR Billet S476/87/1.10 or S476/92/1.10

I am looking at picking up a Forced Inductions turbo pretty soon for my engine build.

I am pretty set on a S476 to try and make 1000hp at the wheels and still keep good street manners.

Truck is in sig (built motor, built trans, J converter, dual 10mm pumps, 60% overs flowing 290mm3 @ 2800us/26ksi, ect).

My question is what turbine wheel is best, the 87 or 92 wheel? Truck will be used as a DD when its warm, sled pull in "open" or "outlaw" style classes, and will hit the strip. Was looking at the 1.10 housing for both to help it spool up BUT also keep higher RPM flow.
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Current Rides:
1) Toy: 2005 LLY ECSB, Leather, Sunroof
-820hp/1748ft-lbs @ Duramax Tuner (6/25/18)
-Built Motor, Bullseye Batmowheel S475/87/1.0 "Comp R75", Exergy 250% overs with "Redman" internal mods, Exergy 14mm street pump w/AN feed, Goerend "J" Converter, Built Trans, AD2 165, Beans Sump, E-Locker, TrueTrac, Yukon 4340 Shafts, Traction Bars, DHD Center Link Brace, DHD Lower Crossmember Support


Past Rides:
1) 2002 LB7 CCSB, Leather, Loaded
-New Bosch Reman Injectors, New LBZ CP3, FASS 150, RCD Sump, 3" MBRP Downpipe, 4" Downpipe Back w/ Muffler, Sleeves, DHD Centerlink Brace, DHD Lower Crossmember Support, Steering Wheel Radio Control Swap
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  #2  
Old 03-21-2018, 08:32 AM
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zf>allison zf>allison is offline
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I'll keep you posted, mine's close. billet 476/87/1.0. So not the 1.10 you are looking at but will be hitting about 4700 rpm. I wanted top end over spool so we will see what happens.
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  #3  
Old 03-21-2018, 08:47 AM
Bdsankey Bdsankey is offline
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Quote:
Originally Posted by zf>allison View Post
I'll keep you posted, mine's close. billet 476/87/1.0. So not the 1.10 you are looking at but will be hitting about 4700 rpm. I wanted top end over spool so we will see what happens.
Thats the RPM I'm targeting. I'm not running 35s on my truck, I refuse to crank the keys and make it ride like ass.

With 305/70R16 BFG AT KO2s, 3rd gear, and 3.73s I should be at 4700rpm=32mph.

With 315/75R16, 3rd gear, and 3.73 I would be at 4400rpm=32mph.

I don't know if I'll have the power to hang 4th. The goal originally was 4th, 3.73, and 305/70r16 @ 4100rpm=40mph.
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Current Rides:
1) Toy: 2005 LLY ECSB, Leather, Sunroof
-820hp/1748ft-lbs @ Duramax Tuner (6/25/18)
-Built Motor, Bullseye Batmowheel S475/87/1.0 "Comp R75", Exergy 250% overs with "Redman" internal mods, Exergy 14mm street pump w/AN feed, Goerend "J" Converter, Built Trans, AD2 165, Beans Sump, E-Locker, TrueTrac, Yukon 4340 Shafts, Traction Bars, DHD Center Link Brace, DHD Lower Crossmember Support


Past Rides:
1) 2002 LB7 CCSB, Leather, Loaded
-New Bosch Reman Injectors, New LBZ CP3, FASS 150, RCD Sump, 3" MBRP Downpipe, 4" Downpipe Back w/ Muffler, Sleeves, DHD Centerlink Brace, DHD Lower Crossmember Support, Steering Wheel Radio Control Swap
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  #4  
Old 03-21-2018, 08:53 AM
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gmduramax gmduramax is offline
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Either 87 or 96. The 92 doesn’t work well. Mark said the spool with 96 is almost as good as the 87.
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  #5  
Old 03-21-2018, 08:56 AM
Bdsankey Bdsankey is offline
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Quote:
Originally Posted by gmduramax View Post
Either 87 or 96. The 92 doesnít work well. Mark said the spool with 96 is almost as good as the 87.
My thought was the 96 isn't really going to be useful to me being a DD but hey, if that's what I need then that's what I'll do.

The though was that by staying 87mm that I can buy another charger (2.6SB or 2.5 map) and just do a turbo change quick at the track waiting to pull.
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Current Rides:
1) Toy: 2005 LLY ECSB, Leather, Sunroof
-820hp/1748ft-lbs @ Duramax Tuner (6/25/18)
-Built Motor, Bullseye Batmowheel S475/87/1.0 "Comp R75", Exergy 250% overs with "Redman" internal mods, Exergy 14mm street pump w/AN feed, Goerend "J" Converter, Built Trans, AD2 165, Beans Sump, E-Locker, TrueTrac, Yukon 4340 Shafts, Traction Bars, DHD Center Link Brace, DHD Lower Crossmember Support


Past Rides:
1) 2002 LB7 CCSB, Leather, Loaded
-New Bosch Reman Injectors, New LBZ CP3, FASS 150, RCD Sump, 3" MBRP Downpipe, 4" Downpipe Back w/ Muffler, Sleeves, DHD Centerlink Brace, DHD Lower Crossmember Support, Steering Wheel Radio Control Swap
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  #6  
Old 03-21-2018, 09:02 AM
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I ran that charger with a 87 and .90 housing. Had decent street manners. Converter and tuning will make or break that set up. I personally don't think it will get you a 1000hp unless you are on a forgiving dyno.
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  #7  
Old 03-21-2018, 09:10 AM
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zakkb787 zakkb787 is offline
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http://www.duramaxdiesels.com/forum/...t=79032&page=2

Post #7 and #19. Isaac is NOT a fan of the 92 it seems lol may can contact him for more info.
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  #8  
Old 03-21-2018, 09:13 AM
Bdsankey Bdsankey is offline
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Quote:
Originally Posted by Ne-max View Post
I ran that charger with a 87 and .90 housing. Had decent street manners. Converter and tuning will make or break that set up. I personally don't think it will get you a 1000hp unless you are on a forgiving dyno.
It should come close as long as what I was told is accurate: 300mm3 of fuel is enough to make 1000hp.

By my injectors flowing 290mm3 @ 2800us/26ksi it should go up when we tune the pumps to go to full pressure (well above 26ksi).

That being said, I know not regearing will kill me if I can't run 4th gear. I don't think 32mph of wheel speed is enough for our open class due to the fact the sled is usually light. Being light I may be able to run 4th but I'll have to find out. Thank god for the 100ft rule haha.

With my old setup (Danville 68mm stage 2r, single 10mm) I managed to snag 32-33mph wheel speed (4800-4900rpm) while getting 29mph ground speed on low tread 265/75r16 BFG so I should be close.
__________________
Current Rides:
1) Toy: 2005 LLY ECSB, Leather, Sunroof
-820hp/1748ft-lbs @ Duramax Tuner (6/25/18)
-Built Motor, Bullseye Batmowheel S475/87/1.0 "Comp R75", Exergy 250% overs with "Redman" internal mods, Exergy 14mm street pump w/AN feed, Goerend "J" Converter, Built Trans, AD2 165, Beans Sump, E-Locker, TrueTrac, Yukon 4340 Shafts, Traction Bars, DHD Center Link Brace, DHD Lower Crossmember Support


Past Rides:
1) 2002 LB7 CCSB, Leather, Loaded
-New Bosch Reman Injectors, New LBZ CP3, FASS 150, RCD Sump, 3" MBRP Downpipe, 4" Downpipe Back w/ Muffler, Sleeves, DHD Centerlink Brace, DHD Lower Crossmember Support, Steering Wheel Radio Control Swap
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  #9  
Old 03-21-2018, 03:25 PM
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Where are u from bsankey? Most of my experience with Borg turbos is from sled pulling in a hot street setting. I currently help/tune/advise two different setups. A 475/96/1.0 LLY and a 480/87/1.0 lbz. I think you're on the right track about going with the 87 tw in a t4 housing. It's kind of the jack of all trades setup. Can spool great, but can make big power. In either a single or as a high pressure charger in compounds.
The 96 tw in a t4 housing can spool fine too, but I'm not sure it's going to out perform the same turbo with the 87. Probably going to be more expensive too because the t4 housings that are modified to fit are expensive and do not come on an off the shelf turbo.

Sent from my XT1585 using Tapatalk
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  #10  
Old 03-21-2018, 05:37 PM
Bdsankey Bdsankey is offline
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Quote:
Originally Posted by ikeG View Post
Where are u from bsankey? Most of my experience with Borg turbos is from sled pulling in a hot street setting. I currently help/tune/advise two different setups. A 475/96/1.0 LLY and a 480/87/1.0 lbz. I think you're on the right track about going with the 87 tw in a t4 housing. It's kind of the jack of all trades setup. Can spool great, but can make big power. In either a single or as a high pressure charger in compounds.
The 96 tw in a t4 housing can spool fine too, but I'm not sure it's going to out perform the same turbo with the 87. Probably going to be more expensive too because the t4 housings that are modified to fit are expensive and do not come on an off the shelf turbo.

Sent from my XT1585 using Tapatalk
Iím from Northern Wisconsin. My thought with the 76 was Iíd be able to stay on top of it. Iíve got 2Ē log manifolds and 2Ē up pipes.

Iíve only got 60% overs now but plan to go to 200% as soon as money allows.

I know the 76 will easily max out my injectors now and should make 1000-1100 with more fuel.
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Current Rides:
1) Toy: 2005 LLY ECSB, Leather, Sunroof
-820hp/1748ft-lbs @ Duramax Tuner (6/25/18)
-Built Motor, Bullseye Batmowheel S475/87/1.0 "Comp R75", Exergy 250% overs with "Redman" internal mods, Exergy 14mm street pump w/AN feed, Goerend "J" Converter, Built Trans, AD2 165, Beans Sump, E-Locker, TrueTrac, Yukon 4340 Shafts, Traction Bars, DHD Center Link Brace, DHD Lower Crossmember Support


Past Rides:
1) 2002 LB7 CCSB, Leather, Loaded
-New Bosch Reman Injectors, New LBZ CP3, FASS 150, RCD Sump, 3" MBRP Downpipe, 4" Downpipe Back w/ Muffler, Sleeves, DHD Centerlink Brace, DHD Lower Crossmember Support, Steering Wheel Radio Control Swap
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  #11  
Old 03-21-2018, 08:13 PM
onebaddmaxxx onebaddmaxxx is offline
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A friend of mine ran a 76/87/1.1 last year in his crew cab. Went 10.6 forgot his mph but at his 6800lb weight it put him at 1050 on fuel.
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Old 03-22-2018, 02:20 AM
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ikeG ikeG is offline
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Quote:
Originally Posted by Bdsankey View Post

That being said, I know not regearing will kill me if I can't run 4th gear. I don't think 32mph of wheel speed is enough for our open class due to the fact the sled is usually light. Being light I may be able to run 4th but I'll have to find out. Thank god for the 100ft rule haha.

With my old setup (Danville 68mm stage 2r, single 10mm) I managed to snag 32-33mph wheel speed (4800-4900rpm) while getting 29mph ground speed on low tread 265/75r16 BFG so I should be close.
You could regear to 3.42's. It will allow it to be sensible to drive on the highway but give you some more wheel speed while pulling. 4.56's are probably ideal but would be way too low for highway use without a 6 speed.

Sent from my XT1585 using Tapatalk
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Isaac Griffith, formerly 04jimc
03 Chev CC SB ZF6-Gone
04 GMC CC SB SLT LLY
597/1096 Batmostocker-Gone

06 GMC CC DRW-Gone
08 GMC CC DRW-Gone
New DD/Beater: Beat up 06 GMC CCSB w/ 252,000 miles
Current Tow Rig-12 Ram 4500 Crew


'Oughta K
now Better'- PPL Lim Pro Stock 05 3500 Crew Cab 158" WB 2014 PPP 2.6 Champions
Thanks to Blackout Performance

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  #13  
Old 03-22-2018, 06:21 AM
Bdsankey Bdsankey is offline
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Quote:
Originally Posted by ikeG View Post
You could regear to 3.42's. It will allow it to be sensible to drive on the highway but give you some more wheel speed while pulling. 4.56's are probably ideal but would be way too low for highway use without a 6 speed.

Sent from my XT1585 using Tapatalk
What I should do is just suck it up and swap tires every weekend, live with the tire rub, or let the bitch eat in 3rd and see what rpm does.

If it ends up running 5k in 3rd I can jump it into 4th on the next hook but with locker in the front and good eaton posi out back I don't think it will. Only one way to find out.

The rpm difference in 3rd gear @ 32mph between 3.73 and 3.42 is 400rpm.
__________________
Current Rides:
1) Toy: 2005 LLY ECSB, Leather, Sunroof
-820hp/1748ft-lbs @ Duramax Tuner (6/25/18)
-Built Motor, Bullseye Batmowheel S475/87/1.0 "Comp R75", Exergy 250% overs with "Redman" internal mods, Exergy 14mm street pump w/AN feed, Goerend "J" Converter, Built Trans, AD2 165, Beans Sump, E-Locker, TrueTrac, Yukon 4340 Shafts, Traction Bars, DHD Center Link Brace, DHD Lower Crossmember Support


Past Rides:
1) 2002 LB7 CCSB, Leather, Loaded
-New Bosch Reman Injectors, New LBZ CP3, FASS 150, RCD Sump, 3" MBRP Downpipe, 4" Downpipe Back w/ Muffler, Sleeves, DHD Centerlink Brace, DHD Lower Crossmember Support, Steering Wheel Radio Control Swap
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