6L Iron Block, 12psi
01-19-2012, 01:35 AM
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6L Iron Block, 12psi Just now getting around to getting back on ls1tech. Been years, but finally got a motor to hold together, got a turbo that doesn't blow oil out seals, and a tune.
Got car tuned at RPM in DE around July.
93 oct.
681hp/668tq on 12psi on safe tune.
751hp/692tq. on accidental 14.5 setting.
6L iron block, heads/cam, t56, 12-bolt 3.73 gears. pt76gts
Got car tuned at RPM in DE around July.
93 oct.
681hp/668tq on 12psi on safe tune.
751hp/692tq. on accidental 14.5 setting.
6L iron block, heads/cam, t56, 12-bolt 3.73 gears. pt76gts
Last edited by 02BlueFirehawk; 01-19-2012 at 01:46 AM.
01-19-2012, 01:53 AM
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01-19-2012, 01:59 AM
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Not sure, been so long since the build ... this has been years in progress. VA speed long block. Wiseco-Manley with a turbo application dish. I believe these were the 220cc heads. Sorry for lack of detail but I said, build me a motor that wont die like the last 3 motors I had built (from different builders over the years), and they set me up what I have now.
01-19-2012, 02:10 AM
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Not sure, been so long since the build ... this has been years in progress. VA speed long block. Wiseco-Manley with a turbo application dish. I believe these were the 220cc heads. Sorry for lack of detail but I said, build me a motor that wont die like the last 3 motors I had built (from different builders over the years), and they set me up what I have now.
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02-02-2012, 01:52 AM
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Here's my setup
Turbo:
Precision PT76GTS with billet wheel, non bb. T4 housing.
.96 a/r Flows enough air for 1200 hp. Turbonetics Racegate dumps to atmosphere.
Fuel:
A1000 into 8AN feed, to 80# injectors out to boost referenced regulator, 6an return.
Below are the motor specs:
Custom Cam:
Intake Exhaust
Adv Cur 286 282
Dur @ .050 236 230
Lift .617 .605
Lobe Sep.: 116
General Motor Specs:
6.0 iron block fully machined-hone, decked line bored
Stock crank
Callies h-beam rods
Wiseco-manley forged pistons
Clevite h main and rod bearings
Total seal steel rings
Ported oil pump
Custom cam
Ls7 lifters
ARP Hardened pushrods
Yella terra roller rockers
ARP head studs
Trickflow fast as cast heads
Gm head gaskets
New gaskets and seals
ARP main bolts
Stock M6 transmission swap, with textera twin-disc clutch.
A1 Driveshaft
Strange 12-bolt, with 3.73 gears.
GM 2 bar map sensor, No MAF, Speed density tune, IAT sensor inline before the t-body
3.5” air-air FMIC with 3” intercooler piping, HKS SSQV bov
I have a Griffin 3-core race radiator custom mounted in the front, with a single pusher fan.
Stock water pump
No a/c
Stock LS6 intake manifold
Shortie aftermarket truck exhaust manifolds, into two-into-one 2.5” stainless up-pipes (heat wrapped), into turbo, out of turbo into 3” downpipe (heat wrapped), out to cat-less loudmouth exhaust. (Custom V-band setup allows one to remove cat-back and have dump after rear tire under car)
Getting some things done at RPM to wrap up loose ends. Want Fran to put in back on the dyno with a full run at 15 psi.
Turbo:
Precision PT76GTS with billet wheel, non bb. T4 housing.
.96 a/r Flows enough air for 1200 hp. Turbonetics Racegate dumps to atmosphere.
Fuel:
A1000 into 8AN feed, to 80# injectors out to boost referenced regulator, 6an return.
Below are the motor specs:
Custom Cam:
Intake Exhaust
Adv Cur 286 282
Dur @ .050 236 230
Lift .617 .605
Lobe Sep.: 116
General Motor Specs:
6.0 iron block fully machined-hone, decked line bored
Stock crank
Callies h-beam rods
Wiseco-manley forged pistons
Clevite h main and rod bearings
Total seal steel rings
Ported oil pump
Custom cam
Ls7 lifters
ARP Hardened pushrods
Yella terra roller rockers
ARP head studs
Trickflow fast as cast heads
Gm head gaskets
New gaskets and seals
ARP main bolts
Stock M6 transmission swap, with textera twin-disc clutch.
A1 Driveshaft
Strange 12-bolt, with 3.73 gears.
GM 2 bar map sensor, No MAF, Speed density tune, IAT sensor inline before the t-body
3.5” air-air FMIC with 3” intercooler piping, HKS SSQV bov
I have a Griffin 3-core race radiator custom mounted in the front, with a single pusher fan.
Stock water pump
No a/c
Stock LS6 intake manifold
Shortie aftermarket truck exhaust manifolds, into two-into-one 2.5” stainless up-pipes (heat wrapped), into turbo, out of turbo into 3” downpipe (heat wrapped), out to cat-less loudmouth exhaust. (Custom V-band setup allows one to remove cat-back and have dump after rear tire under car)
Getting some things done at RPM to wrap up loose ends. Want Fran to put in back on the dyno with a full run at 15 psi.
02-02-2012, 01:57 AM
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Not sure what wastegate spring they put in the car but they had tried a bunch of different springs. I think they had a 5 psi spring in at one point. It is boost controlled however HKS EVC5; I haven't tinkered with the boost controller however.
02-02-2012, 06:20 AM
#19
Ever figure out what the slow spool was about? I have seen twin 76 5.3 motors hit peak torque close to the same rpm and 6.0 T6 91mm turbos come in at around 4500 rpm. I would have expected a single on a 6.0 to come in somewhere around 3500-4000 rpm, not 5000+ rpm.
02-02-2012, 10:55 AM
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Don't hate! Allen. 
I never really noticed an issue but I'll talk with Fran at RPM to see if they can put their 2 cents in on it. It may be a matter of adjusting the duty on the boost controller.
I never really noticed an issue but I'll talk with Fran at RPM to see if they can put their 2 cents in on it. It may be a matter of adjusting the duty on the boost controller.