schmendog

iTrader: (10)

For those of us who are considering a BW it would be nice to have a log of other's results with details on the build to make a better informed decision of the appropriate turbo for ones goals and the graphs will allow us to see where boost comes in.

Post your details and dyno graphs here, along with the following details on the build:

Turbo: S4XX (T4 or T6, A/R, turbine wheel size, race cover, billet wheel, ported housing etc.)
PSI:
Cubic Inch:
Transmission:
Compression:
Fuel:
Heads: (size/casting/brand/ported/valve job etc.)
Intake:
TB size:
Meth y/n:
Intercooler size:
ET/mph:
RWHP:
RWTQ:

schmendog

iTrader: (10)

Here are some I have found from build threads:


Turbo: S475 T6 1.32 A/R 83mm turbine
PSI: 11 PSI
Cubic Inch: 347
Transmission: T56
Compression: Not listed (estimated 9.5:1)
Fuel: 93 pump
Heads: Patriot ported 243's with large valves 64 cc
Intake: LS6
TB size: 78mm
Meth y/n: Yes
Intercooler size: Spoolin Performance large core FMIC
ET/mph: N/A
RWHP: See graph
RWTQ: See graph

schmendog

iTrader: (10)

Turbo: Billet S475R 83/74 turbine 1.10 A/R T4
PSI: 22 PSI
Cubic Inch: 293 (4.8)
Transmission: not listed (assume 4L80E on GM truck)
Compression:
Fuel: E85
Heads: Stock 863 un ported
Intake: stock TBSS intake
TB size: stock 78mm
Meth y/n: No
Intercooler size: Not listed
ET/mph: N/A
RWHP: 877
RWTQ: 822

schmendog

iTrader: (10)

Turbo: Cast S480 1.10 A/R 92 mm turbine (not sure T6 or T4)
PSI: 21 PSI
Cubic Inch: 347
Transmission: Not listed (4L80 I believe)
Compression: Not listed
Fuel: E85
Heads: Stock 317's
Intake: Edelbrock Pro Flow
TB size: 78mm
Meth y/n: No
Intercooler size: Not sure
ET/mph: 9.77@140.40 in a 4,500 lb truck
RWHP: See graph (blue lines)
RWTQ: See graph (blue lines)

Blue lines, red lines were with old 4.8

schmendog

iTrader: (10)

Turbo: Billet S480 96 mm turbine 1.32 A/R (T6 I believe)
PSI: 25 PSI
Cubic Inch: 347
Transmission: PG
Compression: 11.5:1
Fuel: E85
Heads: Ported 853
Intake: Viv Jr.
TB size: 105 mm
Meth y/n: not sure
Intercooler size: A2W
ET/mph:
RWHP: 1063
RWTQ: 823

schmendog

iTrader: (10)

Hoping some people post up results with 347 -370 ci and S480's so we can see how the different turbine wheel size effects spool up.

coolmanvette75

iTrader: (2)

Subscribed. I'll be running a Billet T6 S480 ET-R HO on a forged 370 here in a few months

bad6as

iTrader: (17)

Turbo: S480 (T4 , A/R 1.25 , 87mm turbine wheel size, race cover)
PSI:20
Cubic Inch:364
Transmission:th400
Compression:8.2
Fuel: 100 unleaded
Heads: tfs 235 cnc
Intake: ls6
TB size: stock
Meth y/n: yes
Intercooler size: ebay 31x12x4 3''in/outs
ET/mph: 9.33 151 1.44
RWHP: only numbers i remember was 640 in 13 psi with low timing cuz i was out of injector
RWTQ:

Forcefed86

iTrader: (4)

Would be nice to throw the cam used in there too...

Turbo: S400sx3 75mm t4 1.10 t4 83/74
PSI: 22 creeps to 25 by redline
Cubic Inch: 323 (5.3) (2001 stock orig. short block 160k)
Transmission: Power Glide
Compression: 8.6:1
Fuel: E85
Heads: OEM casting 317, VERY mild hand port.
CAM: ZR1
Intake: LS1
TB size: Stock
Meth y/n: n
Intercooler size: 32x12x4 CHeapy Ebay china IC
ET/mph: 8.93@ 153 1/4, 5.73 @ 122 1/8th

2850lbs

01 WS6 6.0

iTrader: (8)

Sub'd for this one I to will be running a billet s480 ETR HO V3 curious to see what these turbos are capable of. Also who ever would like to share additional info would be greatly appreciated weight of the car etc...

02_ramair_ta

iTrader: (35)

I want to see more Billet 76s with 92 wheels, seems these little guys make some CRAZY power!

mrstepheneades

Turbo: s475 standard cover $650 version (96mm turbine,T6, 1.32a/r)
PSI: 17
Cubic Inch: 347
Transmission: t56
Compression: stock LS1 I think 10:1
Fuel: pump 93
Heads: 241 all in stock form
Intake: stock LS1
TB size: stock factory LS1
Meth y/n: Yes, Twin 10gph Nozzles using 100% VP Fuels M1
Intercooler size: Ebay 24/12/4" core a2a
ET/mph: Unknown
RWHP: 755
RWTQ: 663

Tuned by Aaron Lail @ TruDynoSports, Conover,NC.

Car is currently on 20psi. Still untouched 130000 mile LS1 besides the cam.
Heads never been off nor the Intake.

Dyno Graph. This was at a dyno/car event at Tick Performance


The Video

schmendog

iTrader: (10)

^ Comparing your results with post three:

him at 11 psi and you at 17 psi, but you have the same numbers. He's got ported 243's where you have stock 241's, but otherwise very similar. Wonder why he's making the same numbers at only 11 PSI? Dyno differences would be my first instinct but that's a big difference, non the less you've got a bad *** car there.

mrstepheneades

Thanks. I should've added was on only 14 degrees timing and 11.0 afrs. Maybe different cam also. I know the graph looks like it flattens but Jonathan cut the pull short at less than 6000 rpm. Martin can vouch for that. I really don't know if it would have made any more power or notbut I usually turn it to 6600. They lost the RPM signal to the Dyno that's why he let out. It was just for fun so I told him to unstrap it I won the money anyway. I mean I am on my stock grenade and I wanted to make the over hour long trip home.

schmendog

iTrader: (10)

Here is a nice before and after. OP went from the budget S475 to a S476R, you can compare the differences between the two all though during the switch he also had the block rebuilt and bored it out a little and also bumped the compression a couple points:

Turbo: Cast S475 T6 96 mm turbine 1.32 A/R
PSI: 17 (no gain with more boost)
Cubic Inch: 338 SBF
Transmission: PG
Compression: 8.5:1
Fuel: E85
Heads: TFS 225
Intake: Edelbrock Vic Sr.
TB size:
Meth y/n: N
Intercooler size: A2W
ET/mph:
RWHP: See graph
RWTQ: See graph





AFTER turbo upgrade


Turbo: Cast S476 T6 96 mm turbine 1.32 A/R
PSI: 19 (no gain above 19 PSI)
Cubic Inch: 347 SBF
Transmission: PG
Compression: 11:1
Fuel: E85
Heads: TFS 225
Intake: Edelbrock Vic Sr.
TB size:
Meth y/n: N
Intercooler size: A2W
ET/mph: 5.52 @ 131.8
RWHP: See graph
RWTQ: See graph

mrstepheneades

Yes its obvious that 76R puts out way more but the compression went from 8:5 to 11:1 on the improved setup. Wouldn't that make some difference? Just curious. I have the standard everything s475 and seeing the 850rwhp number from this turbo on basically the same cubes as I have is reassuring. Makes me think I can get at least that outta my turbo before its outta steam.