Parts graph
KA24DE-T
The KA24DE-T is the boost-what-you-have rebuttal to the eternal SR-swap thread: a torquey iron-block 2.4 already sitting in the car, whose stock bottom end happily wears a turbo to ~300-350whp on a well-mapped budget ladder — CX Racing kit, 550cc top-feeds, Z32 MAF, Nistune — for roughly what a good SR clip costs before labor. The stock rods are the famous fuse at ~350whp; past them the recipe is Eagle H-beams and forged pistons, a modern big single, and a speed-density standalone, at which point the truck-motor argument stops being about budget and starts being about torque.
Ask the mechanic where to start →Compatibility intel 21 edges
The rules that make combinations work — or not. This is the knowledge that used to live in dead forum threads.
- CX Racing KA24DE T3/T04E Turbo KitrequiresDeatschWerks 550cc Side-Feed Injectors (set of 4)The KA's factory ~270cc injectors are maxed before the wastegate even thinks about opening — boost on stock squirters is a lean pop performed for a dyno audience
- CX Racing KA24DE T3/T04E Turbo KitrecommendsNistune Board + License (KA24DE)The kit ships with zero engine-management answer in the box — Nistune inside the factory ECU is the budget-correct tune that matches the kit's whole ethos
- KA24DE-TconflictsDeatschWerks 550cc Side-Feed Injectors (set of 4)The stock ROM cannot rescale for double the injector — it floods, fouls plugs, and idles like a diesel until Nistune or a standalone tells it the truth
- DeatschWerks 550cc Side-Feed Injectors (set of 4)requiresWalbro GSS342 255lph In-Tank Pump550s at boost duty outrun the tired 30-year-old stock pump fast — the GSS342 is the $140 floor under every KA-T fueling conversation
- Injector Dynamics ID1050X (set of 4, KA24DE)requiresWalbro GSS342 255lph In-Tank Pump1050cc of injector is decoration if supply collapses at high duty — a 255lph in-tank pump is the non-negotiable floor
- Nistune Board + License (KA24DE)recommendsNissan Z32 300ZX MAF (80mm)The stock KA meter pegs its 5V ceiling around 250whp — nearly every serious Nistune KA-T map is built on a Z32 rescale from day one
- Nissan Z32 300ZX MAF (80mm)unlocksDeatschWerks 550cc Side-Feed Injectors (set of 4)The 80mm card's extended metering range is what lets a Nistune rescale run 550s cleanly instead of pegging the meter at half throttle
- Haltech Elite 750 + Flying Lead HarnessconflictsNissan Z32 300ZX MAF (80mm)The Elite runs speed density off MAP and IAT — buying a $280 Z32 meter for a MAF-delete ECU is money set directly on fire
- Haltech Elite 750 + Flying Lead HarnessconflictsNistune Board + License (KA24DE)Two roads to a tune, pick one — a wired-in Elite turns the daughterboard in the stock ECU into a $550 paperweight
- CX Racing KA24DE T3/T04E Turbo KitrecommendsMishimoto Universal 31x12x3in IntercoolerThe kit's charge air comes off the T04E hot with nowhere to shed it — a front-mount is the difference between a tune that holds and timing pulled by lunch
- CX Racing KA24DE T3/T04E Turbo KitrecommendsMishimoto Universal 19-Row Oil Cooler KitThe kit's oil lines feed the journal-bearing turbo from the same supply the KA already runs hot NA — a thermostatic cooler is cheap insurance on a motor never told about boost
- KA24DE-TrecommendsKoyorad Hyper-V 36mm Radiator (240SX)A truck motor at 7psi makes real heat and the crusty factory core was marginal even NA — the 36mm Koyo drop-in retires that variable before boost finds it
- CX Racing KA24DE T3/T04E Turbo KitrecommendsACT Xtreme Street Clutch Kit (XT/SS)The stock NA clutch starts slipping around 250wtq — roughly one third-gear pull after the wastegate line gets hooked up, so budget the XT/SS with the kit and not after
- Precision PT6266 Gen 2 (T3, V-band out)requiresEagle H-Beam Rods + Wiseco Forged Pistons (KA24DE)The compressor map doesn't care about folklore — leaning on a 6266 past the ~350whp stock-rod fuse without H-beams is just choosing which dyno video you star in
- Precision PT6266 Gen 2 (T3, V-band out)requiresInjector Dynamics ID1050X (set of 4, KA24DE)Anything actually using a 6266's map needs ~1000cc at sane duty on pump gas — 550s are tapped out right at the stock-rod ceiling
- Eagle H-Beam Rods + Wiseco Forged Pistons (KA24DE)unlocksPrecision PT6266 Gen 2 (T3, V-band out)With H-beams and forged slugs in the iron block, the 6266 stops being wastegate-duty decoration and gets to spin toward its actual 600whp ceiling
- Precision PT6266 Gen 2 (T3, V-band out)recommendsHaltech Elite 750 + Flying Lead HarnessMAF metering gets ugly with a 62mm compressor and recirc plumbing — the Elite's speed density and 3D boost control is how big-single KAs actually get tuned in 2025
- CX Racing KA24DE T3/T04E Turbo KitrecommendsKaaz 2-Way Mechanical LSD (R200)Boosted torque through a tired VLSD or open diff just one-tires out of every corner — the Kaaz puts the new power to the ground, or at least sideways on purpose
- CX Racing KA24DE T3/T04E Turbo KitrecommendsISR Performance GT Single 3in Cat-BackA 3in downpipe necked into the crimped factory cat-back is a self-own — the ISR gives the turbo the straight 3in shot the whole kit was priced around
- CX Racing KA24DE T3/T04E Turbo KitrecommendsZ32 300ZX 4-Piston Front Brake ConversionA KA-T moves an S-chassis at SR pace so it should stop at SR pace — the Z32 caliper swap is the same $750 answer the swap crowd has run for decades
- Injector Dynamics ID1050X (set of 4, KA24DE)requiresRadium Engineering Top-Feed Fuel Rail Conversion (KA24DE)Top-feed 1050s don't seat in the KA's side-feed rail — the conversion rail is non-negotiable, same as on an SR20
Manufacturer application charts 5 records
Fitment straight from the manufacturers’ current application pages — chart-level ground truth for this platform.
- PS13RPS13S14S15
The current application page states (R)PS13/S14/S15.
- PS13RPS13S14S15
Application table lists PS13, RPS13, S14 and S15.
- PS13RPS13S14S15
The application table lists 180SX RPS13 and Silvia PS13/S14/S15; part number varies by kit step.
- S14S15BNR32BCNR33BNR34AP1
Extracted only requested-engine applications from the current Hipermax S list.
- BNR32BCNR33BNR34PS13RPS13S14S15
Manufacturer chart separates RB26 and SR20 intake/exhaust applications by engine and chassis generation.
Turbo & power
CX Racing KA24DE T3/T04E Turbo Kit
CX Racing
The canonical broke-boost starter pack — cast T3 manifold, T04E turbo, wastegate, and oil lines in one box, with flange massaging and the entire tune left as an exercise for the buyer
Precision PT6266 Gen 2 (T3, V-band out)
Precision Turbo & Engine
Bolts to the same T3 flange as the budget kit but carries 800hp of compressor; on stock rods it's a wastegate-duty exercise at ~350whp until the bottom end gets built
Engine internals
Eagle H-Beam Rods + Wiseco Forged Pistons (KA24DE)
Eagle / Wiseco
Stock KA rods are the famous 350whp fuse; the forum-canonical Eagle H-beams and forged 89mm slugs pull the fuse and turn the truck-motor iron block into a legitimate 600whp platform
Injectors
DeatschWerks 550cc Side-Feed Injectors (set of 4)
DeatschWerks
Drop-in 550cc side-feeds for the KA's factory JECS rail — the same DW part number covers SR20DET and KA24DE — good to the ~350whp rod ceiling, though they're knocking on max duty right where the rods are
Injector Dynamics ID1050X (set of 4, KA24DE)
Injector Dynamics
Top-feed with published latency data tuners trust — on a KA they need a top-feed rail conversion, the same tax the SR pays, and they repay it with 600whp of E85-ready headroom
Fuel system
Walbro GSS342 255lph In-Tank Pump
Walbro
Same three-decade S-chassis default the SR guys run; drops into the stock hanger with minor wiring cleanup and out-feeds any sane KA-T
Aeromotive Compact EFI Adjustable Fuel Pressure Regulator (13129)
Aeromotive
Adjustable base pressure for dialing in bigger injectors under boost; budget for AN fittings or a rail adapter since the KA's clamped stock regulator doesn't convert cleanly
Radium Engineering Top-Feed Fuel Rail Conversion (KA24DE)
Radium Engineering
Converts the KA's side-feed rail to top-feed, opening the modern injector catalog — the prerequisite for ID1050Xs, not an accessory
Engine management
Nistune Board + License (KA24DE)
Nistune
Real-time ROM tuning inside the factory ECU with stock drivability intact — S13 KAs take the Type 3 board, S14s the Type 4 (dual-ROM for 96+), and both want a Z32 MAF rescale to matter
Haltech Elite 750 + Flying Lead Harness
Haltech
Full speed-density standalone that deletes the MAF and adds 3D boost control; the wire-in install is a weekend of labeling 90s Nissan harness pins
MAF & sensors
Nissan Z32 300ZX MAF (80mm)
Nissan
The culturally mandatory 80mm meter for the Nistune path — plug-and-play with an adapter harness and a rescale, and worth paying real money to dodge the eBay clones
Intercooler
Mishimoto Universal 31x12x3in Intercooler
Mishimoto
Bar-and-plate core with headroom past anything a stock-block KA will survive; KA-T front-mounts are universal-core affairs, so plan on piping work and trimming behind the bumper support
Cooling
Koyorad Hyper-V 36mm Radiator (240SX)
Koyorad
All-aluminum 36mm drop-in that keeps the stock shroud and fan; boost finds a 30-year-old crush-tank core long before it finds your rods
Mishimoto Universal 19-Row Oil Cooler Kit
Mishimoto
Thermostatic sandwich-plate kit with lines and core included — the KA runs oil hot even NA and the turbo feeds off that same oil, so this is insurance, not jewelry
Exhaust
ISR Performance GT Single 3in Cat-Back
ISR Performance
Full 3in stainless that mates to a 3in downpipe for a straight shot out back — flows everything a stock-rod KA-T can make, and the low-RPM truck-motor burble under boost is half the charm
Clutch
ACT Xtreme Street Clutch Kit (XT/SS)
ACT
Xtreme pressure plate over a street disc holds a stock-rod KA-T with margin and an honest 400whp — and the KA's 240mm friction surface out-sizes an SR's 225mm, one of the few arguments the boost-what-you-have crowd wins outright
Drivetrain
Kaaz 2-Way Mechanical LSD (R200)
Kaaz
Aggressive clutch-type 2-way for the R200 with hard, predictable lock on and off throttle — the grown-up answer on a chassis whose owners usually just weld it
Suspension
BC Racing BR Series Coilovers
BC Racing
The default S-chassis coilover no matter what's under the hood — 30-way adjustable, rebuildable, Swift-spring upgradable, and cheap enough to abuse at your first drift day
Feal Suspension 441 Coilovers (Drift Spec)
Feal Suspension
Drift-spec rates with California-built valving that actually matches them, plus in-house revalve support — the step past entry coilovers once proximity starts mattering
Brakes
Z32 300ZX 4-Piston Front Brake Conversion
Nissan
Z32 30mm aluminum calipers bolt to the S-chassis knuckle, but Z32 rotors are 5-lug and every US 240SX is 4-lug — budget redrilled 4x114.3 rotors or a 5-lug conversion, plus 16in-minimum wheels to clear
Wheels
Gram Lights 57DR 17x9 +38 (set of 4)
Rays
Rays' cast flow-formed line in the right drift-catalog sizes at a third of TE37 money — but 17in 57DRs only come 5x114.3 and every US 240SX left the factory 4-lug, so a 5-lug hub conversion is the cover charge
XXR 527 17x9.75 +25 (set of 4)
XXR
Cast, not light, and absolutely everywhere — but 17x9.75 in 4x114.3 means real width on a stock 4-lug S-chassis without spending hub-conversion money
Prices are typical 2026 USD street prices. Fitment data is community-sourced tuning knowledge, not a guarantee — verify with your tuner before ordering. Marketplace links (Yahoo Japan, UpGarage, Nengun, RHDJapan, eBay) land here next.