What kind of power can I expect out of this junkyard motor?
02-04-2013, 05:48 PM
#1
What kind of power can I expect out of this junkyard motor? aiming to have my swap wrapped up late spring, wondering what kind of power to expect.
Setup:
Engine:
2003 LQ4 Iron 6.0 pulled from van with 134K
Stock bottom end, rods, pistons, etc
Stock rod bearings, cam bearings, main bearings, etc
GTO oil pan, pickup tube, windage tray
Stock LS2 cam from a 2005ish Corvette
AC Delete (not running an AC compressor at this time)
Top end:
317 heads milled .026” for 66cc chambers (verified by the machine shop that did the work). By the way, how can I calculate new CR from this?
new GM MLS headgaskets
ARP headbolts
Stock pushrods, rockers, lifters, etc
LS6 “yellow” valve springs and retainers
Intake:
Stock LS6 intake manifold
LS6 throttle body, stock
Some sort of cold air intake, cone filter
Stock LS6 fuel rail, with 42# Ford Greentop injectors
Exhaust:
I have one of two options, not sure yet which will work.
1.
1998 Camaro tubular stamped steel manifolds, slightly modified to fit my swap, with 2.25” mandrel bent pipe feeding the OEM BMW system. Only have secondary cats well downstream of the headers, precats are all gone.
2. CTSV cast iron manifolds with the cats removed
Car currently has a QTP Cutout/exhaust dump
2002 F-Body T56
New stage 2 Diamond clutch
Most likely a ~18lb Diamond flywheel
3.15 M5 LSD
Tune will be for 93 pump gas.
Let me know if I’m missing anything.
What kind of numbers can I expect?
Setup:
Engine:
2003 LQ4 Iron 6.0 pulled from van with 134K
Stock bottom end, rods, pistons, etc
Stock rod bearings, cam bearings, main bearings, etc
GTO oil pan, pickup tube, windage tray
Stock LS2 cam from a 2005ish Corvette
AC Delete (not running an AC compressor at this time)
Top end:
317 heads milled .026” for 66cc chambers (verified by the machine shop that did the work). By the way, how can I calculate new CR from this?
new GM MLS headgaskets
ARP headbolts
Stock pushrods, rockers, lifters, etc
LS6 “yellow” valve springs and retainers
Intake:
Stock LS6 intake manifold
LS6 throttle body, stock
Some sort of cold air intake, cone filter
Stock LS6 fuel rail, with 42# Ford Greentop injectors
Exhaust:
I have one of two options, not sure yet which will work.
1.
1998 Camaro tubular stamped steel manifolds, slightly modified to fit my swap, with 2.25” mandrel bent pipe feeding the OEM BMW system. Only have secondary cats well downstream of the headers, precats are all gone.
2. CTSV cast iron manifolds with the cats removed
Car currently has a QTP Cutout/exhaust dump
2002 F-Body T56
New stage 2 Diamond clutch
Most likely a ~18lb Diamond flywheel
3.15 M5 LSD
Tune will be for 93 pump gas.
Let me know if I’m missing anything.
What kind of numbers can I expect?
05-20-2015, 09:38 AM
#4
Time to bring this back from the dead. Broke a valve spring in the original motor and a rod went through the block, so it's rebuild time.
2002 LQ4 Iron 6.0 pulled from truck
Stock crank, .010 undersize mains
LS2 flat top OEM pistons, floating Gen 4 rods, LS6 rod bolts
New Clevite P rod bearings, cam bearings, main bearings, etc
GTO oil pan, pickup tube, windage tray
TSP 228R Cam (228/228, .588/.588 @ 112*)
AC Delete (not running an AC compressor at this time)
Top end:
317 heads milled .024” for 66cc chambers (verified by the machine shop that did the work). No porting, stock otherwise
new GM 6.0 MLS headgaskets
ARP headbolts
TSP pushrods, dual springs, titanium retainers
Intake:
Stock LS6 intake manifold
LS6 throttle body, stock
3" pipe with stock LQ4 truck MAF, cone filter
Stock LS6 fuel rail, with 42# Ford Greentop injectors
Exhaust:
CTSV cast iron manifolds with the cats removed, into OEM BMW exhaust with 2 secondary cats.
3" QTP Cutout/exhaust dump before all mufflers/ resonators
2002 F-Body T56
Stage 2 Diamond clutch
18lb Diamond flywheel
3.91 M5 LSD rear
I made 427whp/400ft-lbs last year with a less restrictive catless dual 3" exhaust, but that was with the factory dished pistons. (on an optimistic dyno).
What are we thinking for numbers?
2002 LQ4 Iron 6.0 pulled from truck
Stock crank, .010 undersize mains
LS2 flat top OEM pistons, floating Gen 4 rods, LS6 rod bolts
New Clevite P rod bearings, cam bearings, main bearings, etc
GTO oil pan, pickup tube, windage tray
TSP 228R Cam (228/228, .588/.588 @ 112*)
AC Delete (not running an AC compressor at this time)
Top end:
317 heads milled .024” for 66cc chambers (verified by the machine shop that did the work). No porting, stock otherwise
new GM 6.0 MLS headgaskets
ARP headbolts
TSP pushrods, dual springs, titanium retainers
Intake:
Stock LS6 intake manifold
LS6 throttle body, stock
3" pipe with stock LQ4 truck MAF, cone filter
Stock LS6 fuel rail, with 42# Ford Greentop injectors
Exhaust:
CTSV cast iron manifolds with the cats removed, into OEM BMW exhaust with 2 secondary cats.
3" QTP Cutout/exhaust dump before all mufflers/ resonators
2002 F-Body T56
Stage 2 Diamond clutch
18lb Diamond flywheel
3.91 M5 LSD rear
I made 427whp/400ft-lbs last year with a less restrictive catless dual 3" exhaust, but that was with the factory dished pistons. (on an optimistic dyno).
What are we thinking for numbers?