Engine Build... Advice and opinions needed!

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
GMWR07
Posts: 6
Joined: Mon May 21, 2007 7:54 pm
Car: 89 Nissan 240sx

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Just got my 89' 240sx home... drove it all the way from Iowa to Georgia car is fine with the exception of rust on the fenders and rocker panels. but im going to start building a motor up over a period of a year and a half and already have all the parts planned out... the motor will not be installed untill all the parts are bought. I need advice on anything that should be added or is not very practical.

PARTS:Red top SR20DETTomei Cams 270/270HKS cam gearsSupertech Valve springsSupertech Ti RetainersSupertech Valves3 angle valve jobApex'i Head GasketCP 87mm 9.0:1 pistonsBrian Crower connecting rodsARP main studsARP head studsARP rod studsApex'i Power FCPeakboost Ex. ManifoldPeakboost 3" DownpipePeakboost 38mm screamer pipeEbay exhaustTial 38mm wastegateHKS SSQ BOVGarret GT35R .82 A/RSyncronic Fuel Pressure RegulatorWalbro 255 fuel pump (will i need 2?)OEM ported Fuel RailSard 850cc injectorsSplitfire DIS coil packsOEM reliability partsUnorthadox Lightened Crank pulleyGreddy Pulley KitGreddy Rocker Arm StoppersGreddy Intake ManifoldGodspeed Black IntercoolerKoyo RadiatorGreddy Oil PanOil CoolerGreddy Oil Overflow catch canGreddy Profec B boost controllerGreddy Turbo TimerSamco Radiator HosesFidanza Lightweight fly wheelACT Solid Race 6 puck clutchCusco Motor MountsNismo ThermostatFlex-a-Light FansNitrous Express N-tercooler Spray

Well thats all i could think of to make the perfect engine... any input would be gratefully appreciated whether its bad or good



willyboy
Posts: 253
Joined: Wed Apr 05, 2006 4:05 pm

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thats gonna be a hell of a beast of a car right there. If you have the cash...sounds like you will have one of the fastest 240's around.

doridori23
Posts: 271
Joined: Wed Jun 13, 2007 11:43 am
Car: 1996 SR20deT 240sx (mine) , 1998 KA24de (wife's)

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If you plan on pushing that GT35 past 20psi do yourself a favor and use 2 Walbro's. Also for injectors that high you will need to look very hard at tuning software/hardware. Most of the time I would recommend the GReddy Emanage Ultimate BUT if you are dropping that much money and power to the ground get an AEM Standalone EMS. For the 850s (a little small for the GT35 honestly) you'll need it and the 32x32 fuel maps are better than APEXi or GReddys 16x16 maps as you can adjust fuel every 250 RPM instead of every 500.

DO NOT PUT AN UNORTHODOX PULLEY ON A FRESHLY REBUILT ENGINE! I have both seen and heard of a lot of #1 cylinder bearing issues due to the solid aluminum pulley. The OEM has a small (2.5mm thick to be exact) piece of rubber between the p/s pulley and the ac/water/alt pullies. This is necessary to absorb vibration. If you are feeling frisky get an ATI Super Dampener from Phase2motorsport.

If you going to use the Tomei PonCams or HKS Fat Lobes get the Lash Killer or Solid Lifter set. Eliminate the hydraulic lame lifters and you can safely rev to 9000 with just Brian Crower valves, springs and retainers. I have never used STech but the BC parts are good and their cost is great. On that subject ditch the cam gears. Stick with stockers as a lot of the adjust ables blow up at high RPM. Even Titan Motorsports doesn't need them, use them, or even suggest them and they are running a 1600 whp 2JZ motor.

Everything else is what I either use or suggest so you look to have done your homework.


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