| Fire It Up - SR20 And KA24 Buyer's Guide If you're anything like us (pray that you're not), you spend hours at a time going through all those thick-ass Japanese Silvia tuning books, the ones that have every single item made for a Silvia or a 180SX in existence. Or in our case, the book that Yamz continually brown-tags by bringing into the crapper. Well, Super Street isn't that cool yet. In fact, we're far from it. But that's never stopped us from trying before, and it sure isn't going to stop us now. In case you've lost 90 percent of your eyesight from wrestling the eel too much, we're reminding you that the Signal Auto 350Z on this month's cover is powered by an SR20DET. So what would be the perfect complement to such a masterpiece? We could dress up Roel in drag again, but he claims he doesn't know what happened to the dress and wig. Whatever, dude. We were also thinking of doing something on the SR20 and KA24 motors. You know, because they're such big secrets and all. Wait a second. They're not secrets at all, and anyone who thinks so is an ass clown. They must have been too busy licking Roel's infamous dingleberries to notice that a large portion of the Honda contingent converted to Nissans. Why would we want to write about anything so topical? We're only trying to sell enough magazines to stay in the number-one slot on the newsstands. Maybe we should write about stupid news that nobody cares about, such as Michael Jackson's court case. Nah, that'd be too lame, even for us. This SR20 and KA24 buyer's guide is all you need to get through the night. Well, a bottle of hand lotion might help, too. Enjoy yourselves, bitches.
The Ultimate SR20?
While we were at G-Dimension, James Chang wheeled out an engine that was still in a crate-literally. It was a full-race S14 block and cylinder head from Japan. "It'll go to 400 hp easy with the stock bottom end," James said. "And if the bottom end is a 2.2, 500 easy."
The head had undergone major intake port surgery, and more cutting had been done on the exhaust side. So much metal had been removed from the ports on both sides that you could actually see the valve stems through the ports. "When you can see the valves, you know you're flowing some serious air," noted James.
On top of the head was a full-boat Tomei valvetrain, complete with double-spring valvesprings and solid pivots and a pair of Tomei camshafts that spec'd out at 270 degrees of duration and 12.5mm lift. The factory's variable valve system had been ditched for a pair of adjustable HKS sprockets.
While the big cams will certainly help make power, the solid pivots are the real key to this engine's success, said James. By replacing the stock hydraulic lash adjuster pivots with the solid pieces, it's possible to set the lash tight enough so that the engine can spin to upward of 8,500 rpm without risking rocker arm bounce.
We asked James if he was planning to put this engine in his own drift Silvia, which was under construction in his shop. He shook his head. With the money he could sell this engine for-around $8,000-he'd do far better (fiscally, anyway) by selling it to a customer.
Model: Victoria Vo, www.msvictoria.com
Actually, we prefer the reverse cowgirl, but this will do just fine.
AEBS
AEBS Engine Sleeves
MSRP: $120 each
Engine: SR20
Contact: 858/693-3200
www.aebsracing.com
Tomei ARMS Turbo Upgrade
Engine: SR20
MSRP: $2,178
Tomei Cam Sprockets
Engine: SR20
MSRP: $176 each
Tomei Fuel Pump
Engine: SR20D and KA24
MSRP: $297
Tomei Rocker Arm Stoppers
Engine: SR20
MSRP: $88
AEM Engine Management System
Engine: SR20 and KA24
MSRP: $2,008
Contact: 310/484-2322
www.aempower.com
Cold-Air Intake
Engine: SR20 and KA24
MSRP: $331
Fuel-Pressure Regulator
Engine: SR20 and KA24
MSRP: $238
A'Pexi 2.2L Stroker Kit
Engine: SR20
MSRP: $9,999
Contact: 714/685-5700
www.apexi-usa.com
IHI AX Turbo Kit
Engine: SR20
MSRP: $2,199
Intercooler Core
Engine: SR20 and KA24
MSRP: $595
GT Downpipe
Engine: SR20
MSRP: $250
Aluminum Radiator
Engine: SR20 and KA24
MSRP: Call
Oil Cooler Kit
Engine: SR20 and KA24
MSRP: Call
Metal Head Gaskets
Engine: SR20
MSRP: $239
Super Suction Intake
Engine: SR20
MSRP: Call
Cam Gears
Engine: SR20
MSRP: $220 each
Blitz North America Cooling Performer
Engine: SR20
MSRP: $115
Contact: 626/839-8350
www.blitz-na.com
Dual Drive Blow-Off Valve Kit
Engine: SR20
MSRP: $350
LM Intercooler
Engine: SR20
MSRP: $1,050
Oil Cooler
Engine: SR20
MSRP: $920
Realize TT Exhaust
Engine: SR20
MSRP: $680
550cc And 850cc Injectors
Engine: SR20 and KA24
MSRP: $155 each
Radiator
Engine: SR20
MSRP: $705
Stainless Steel Downpipe
Engine: SR20
MSRP: $230
Triple K Turbo Kit
Engine: SR20
MSRP: $3,600
5Zigen Miracle Turbo Exhaust
Engine: SR20 and KA24
MSRP: $930
Contact: 310/608-5575/ www.5zigenusa.com
Cannonball Turbo Exhaust
Engine: SR20 and KA24
MSRP: $800
Fluidyne Aluminum Radiator
Engine: SR20 and KA24
MSRP: $599
Contact: 888/Fluidynewww.fluidyne.com
G-Dimension
Custom Exhaust Manifold
Engine: SR20
MSRP: $600
Contact: 626/839-3777www.g-dimension.com
GT30R Ball-Bearing Turbo
Engine: SR20
MSRP: $1,850
Koyo Aluminum Radiator
Engine: SR20 and KA24
MSRP: $445
N15 Throttle Body
Engine: SR20
MSRP: $280
Ntake Plenum
Engine: SR20
MSRP: $1,100
GReddy TD06SH-20G Turbo Kit
Engine: KA24
MSRP: $3,590
Contact: 949/588-8300
www.greddy.com
GREX H-Beam Connecting Rods
Engine: SR20
MSRP: $1,320
Racing Titanium Exhaust
Engine: SR20 and KA24
MSRP: $1,049
Grex High Camshafts
Engine: SR20
MSRP: $380 each
Grex Forged Pistons
Engine: SR20
MSRP: $1,080
Oil Filter Relocation Kit
Engine: SR20 and KA24
MSRP: $160
R Spec Intercooler Kit
Engine: SR20 and KA24
MSRP: $1,180
T518Z Turbo Upgrade
Engine: SR20
MSRP: $1,880
HKS USA Camshafts
MSRP: $215 each
Engine:
Contact: 310/491-3300www.hksusa.com
Cam Gears
Engine: SR20
MSRP: $170 each
Valvesprings
Engine: SR20
MSRP: $265
Metal Head Gaskets
Engine: SR20
MSRP: $260-$295
Iron Piston Kit
Engine: SR20
MSRP: $920
Twin Power Ignition
Engine: SR20 and KA24
MSRP: $645
Racing Suction Intake
Engine: SR20
MSRP: $495
Intercooler Type R
Engine: SR20
MSRP: $1,750
Fuel Rail Delivery Kit
Engine: SR20
MSRP: $430
Jspec USA Circuit Sports Exhaust
Engine: SR20 and KA24
MSRP: $599
Contact: www.jspec.com
Jim Wolf Technology 350-500hp Upgrade
Engine: SR20 and KA24
MSRP: $1,545
Contact: 619/442-0680www.jimwolftechnology.com
KA24DE Cam Gears
Engine: KA24
MSRP: $140
Racing Pistons
Engine: SR20 and KA24
MSRP: $180 each
Valvesprings
Engine: SR20 and KA24
MSRP: $224
As is the case with any big cam swap on an S14, the factory variable valve system is tossed aside in favor of a more conventional (and in this case adjustable) sprocket. These gears are from HKS.
A view down the race S14's intake port. So much metal has been shaved away in the interest of high-speed airflow that the valve stems are clearly visible-something you'd never see in the stock head.
Look close and you can see the Tomei double-wound valvespring, needed to stand up to high-rpm flogging. What you can't see are the solid pivots that replaced the hydraulic lash adjuster pivots. Eliminating the hydraulic lash adjustment means you can spin this engine northward of 8,500 rpm in your quest for power.
2.4L Stroker Kit
Engine: SR20
MSRP: $4,459
Signal Auto Engine Damper
Engine: SR20
MSRP: $230
Contact: 310/787-0505www.signalauto.com
Carbon-Fiber Plug Cover
Engine: SR20
MSRP: $135
Oil Catch Can
Engine: SR20
MSRP: $138
Forged Pistons
Engine: SR20
MSRP: $1,200
Carbon-Fiber And Titanium Exhaust
Engine: SR20 and KA24
MSRP: $980
Stainless Steel Exhaust Manifold
Engine: SR20
MSRP: $950
SplitFire Direct Ignition System
Engine: SR20
MSRP: $399
Contact: 800/224-Plugwww.splitfire.com
Cold-Air Intake
Engine: SR20
MSRP: $320
Stillen Cam Gears
Engine: SR20
MSRP: $290
Contact: 866/250-5542www.stillen.com
Superior Nissan Of Puente Hills Twin Turbo 300ZX Fuel Pump
Engine: SR20 and KA24
MSRP: $225
Contact: 626/965-5060www.superiornissanmotorsports.com
S15 SR20DET Turbo
Engine: SR20
MSRP: Call
Engine Gasket Set
Engine: SR20 and KA24
MSRP: Call
Nismo Engine Mounts
Engine: SR20 and KA24
MSRP: Call
Nismo Fuel-Pressure Regulator
Engine: SR20
MSRP: Call
Nismo 555cc And 740cc Injectors
Engine: SR20 and KA24
MSRP: Call
Nismo Metal Head Gaskets
Engine: SR20
MSRP: Call
Nismo Rocker Stopper Kit
Engine: SR20
MSRP: Call
SR20DET Engine Harnesses
Engine: SR20
MSRP: Call
Toda Racing USA Billet Camshafts
Engine: SR20
MSRP: $280 each
Contact: 714/327-0181www.todaracing.com
Aluminum Cam Pulleys
Engine: SR20
MSRP: $300 per pair
2.2L Stroker Kit
Engine: SR20
MSRP: $6,400
GT300 Forged Pistons
Engine: SR20
MSRP: $980
Valvesprings
Engine: SR20
MSRP: $240
Tuning ConceptsT3/T4 Turbo Kit 545hp
Engine: SR20
MSRP: $3,299
Contact: 512/791-4012www.tuningconcepts.com
Unorthodox RacingCrank Pulley
Engine: KA24
MSRP: $229
Contact: 631/586-9525www.unorthodoxracing.com
Pulley Kit
Engine: SR20
MSRP: $406
VeilSideExplosion Exhaust
Engine: SR20 and KA24
MSRP: $980
Contact: 310/835-5684www.veilside.com
XS EngineeringTurbo Kit
Engine: KA24
MSRP: $4,199
Contact: 714/698-8300
www.xs-engineering.com