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View Full Version : How much will the SR20 block support?


KrazyZenki
07-24-2006, 12:45 PM
I have a redtop SR20DET and am getting a new setup. I want to know if the stock block will support it. Heres the setup

Custom top mount manifold built by ST Performance(equal to full race quality)
GT3071R T3 .63 A/R Vband with 2 3/4 velocity stack
Tial 44mm WG Vband
Custom Vband downpipe with 3inch electric cutout
AEM EMS
GM 3 bar map sensor
HKS SSQV
new silicon couplers all tbolt clamped
GReddy intake manifold
GReddy cams 264 duration/11.5mm lift(intake) 272 duration/11.5 lift(exhaust)
Gredddy valvesprings
GReddy RAS
Cometic HG
ARP head studs
SARD 850cc injectors
stock bottom end
all piping, intake manifold and valvecover powdercoated

already installed:

GReddy VSPL FMIC
GReddy coldpipe
Walbro 255
ACT 6 puck rated @ 515 ft-lbs
Toda chromoly flywheel
Cusco RS 1.5 LSD
Koyo radiator
Permacool 14inck electric fan
Nismo 160 degree thermostat
300ZX calipers powdercoated red
280mm mountain cross slotted and drilled rotors
HAWK HPS brake pads
Stainless steel and teflon coated brake lines


My car will mostly see low boost which will be 14psi and my high boost will be 19-20psi but my car will rarely ever see. So do you think the stock bottem end will handle it?

Slidin240Wayz
07-24-2006, 01:22 PM
Alot of the items you posted were unecessary- suspension, brakes...

Anyhoot. Injectors, MAFS, Fuel Pump, ecu tune- all set. People have put out relatively high numbers on stock bottom ends. You'll be fine.


Carlos

ranger2339
07-24-2006, 03:04 PM
Why not get some forged internals, you seem to not be on a tight budget, id say do it right the first time....

Ya and coilovers,brakes would help out...

Dam i should post my 20k build up...2.2l stroker kit all the way to a widebody kit...

Josh

KrazyZenki
07-24-2006, 11:40 PM
Forged internals are coming...Im building a block on the side and then Ill swap them out. For the block Im thinking CP pistons, Crower rods, Clevite bearings and ARP hardware. But I wont be running alot of boost until I get the built block in there. Daily boost will be 12psi and high boost with be 15-16psi. Once the block is in Ill turn it up to 19psi on pump and 22-24psi on c16.

harlockssx
07-25-2006, 06:21 AM
If your tune is good, don't fear the boost, especially with a decent headgasket! I have been running ~21 psi everyday for the last few years with ZERO problems on stock internals & just stepped it up to a GT3567R from Full-Race!