ft) due to the deep stroking 2.4L adds a perfect upgrade for a daily driver.While the engine does not maintain the square bore/stroke ratio that allow the K20's to easil achieve 10k RPM glory, the added torque (+ 30 lb The Type S engines have the best cams, but the secret is that the J35s feature the same heads and cams as the J32A2 Type S and swapping them over to a non-Type S J-series is entirely doable.Honda's RBB K24A engine is a perfect upgrade compared to the K20Z3 in a daily driven 2006-2011 Civic Si. Prior to the latest 3.7-liter TL SH-AWD engine, they all had 89mm bores with the displacement discrepancies coming from stroke. They have open-deck blocks with cast pistons and forged crankshafts some even have forged rods. They're all four-valve-per-cylinder, SOHC, configurations with VTEC on their intake sides. has only seen variations that range from 3.0 to 3.7 liters. Although there are rare homologations like the J25, the U.S. The J-series measures in at a more compact 60 degrees, which means the heads are closer together and the overall package is smaller. The C-series, which includes early Accords, the Legend, and the NSX, features 90-degree-opposed cylinder banks. The big difference between the Js and Cs is their angles. Much like Nissan's VQ, you'll find the J in just about everything. First put into the '97 CL and '98 Accord, it's since unofficially became Honda's workhorse. The J-series is the successor to Honda's ubiquitous V-6, the C-series. It's so easy, even your old Civic shift knob will fit. To make it all fit, API offers a mounting plate that securely fastens the box without modifying the console or anything else inside. Only one of the original mounting bosses can be used. The shifter box must be mounted underneath the car and sealed off. Unbelievably, these parts, from an '03-'07 Accord, cost only $250. Unlike the K swaps though, OEM Accord K-series shifter cables and shifter boxes work here. That means the appropriate cables and shifter box are required. Similar to the H- and K-series swaps, the Js all use cable-operated shifter mechanisms.
#Honda jdm engine swap manual
They're good to 300 whp and work with the J's stock manual transmission intermediate shaft, so make sure you get that with your six-speed should you go the manual trans-route. API now offers axles that fit the '92-'00 Civic and '94-'01 Integra. The axles began as a combination of about five different OEM pieces but, what with popped joints and broken pieces, a custom set was eventually made. You won't need to access these unless something goes wrong. The immobilizer can then be wired appropriately and taped next to the ECU along with the key. Simply bring in the title and most dealers will reprogram the ECU to match a new key. If obtaining an ECU with its matching key isn't an option, the ECU can be reprogrammed at most Honda dealerships. The ECU doesn't need to match the engine, but the key and ECU do need to match one another. To avoid the immobilizer hassle, be sure to get the key and immobilizer ring with the ECU. Other ECUs can be used, but what does and doesn't work is still being sorted out. To make things simple, get a non-drive-by-wire engine along with its matching ECU. And, of course, the newer ECUs all have immobilizers. It's no surprise that the plugs are different, but the J's engine harness will also most likely be from an automatic. The tough part is integrating the J-series engine harness with the Civic's chassis harness. Nevertheless, dropping an automatic J35A into the wife's sedan is enough to reinvent grocery getting.Īh, but this is a can of worms. An automatic kit is coming since there're far more automatic transmissions out there, despite how weird it may seem at first to go from a manual trans to an automatic one. API's swap kit currently supports only the manual transmission. There's bad news though and it has to do with the transmission. You simply cannot argue with 240 hp combined with Honda reliability for less than a grand. Look around an Odyssey minivan's J35A4 can go for as low as $900. Today, there are 13 different J35 engines and few of them are terribly expensive. To further the case for the V-6, there're simply a ton of them out there. While none of them offer the horsepower-per-liter characteristics of some of the best B- or K-series engines, the J-series does offer one thing no Honda four-cylinder engine does-torque. Honda's current line of V-6s, the J-series, ranges in displacements from 3.0-3.7 liters.
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