![]() This is why it is vital to know the various swapping options that you have for your Honda Civic. Notes about Civic Engine SwapsĮngine swapping is a complicated process as not every engine can replace the stock one. Other options include a reflash (not an option in some areas and on certain Honda ECU's),or the aftermarket ECU route :- Bespoke Vtec controller, or Kpro can all help you set this up and get it working on an EX ecu. This is what is required in order to modify the VTEC engagement points without causing damage to the engine. It is possible to make corrections based on the throttle position, and the specifications for both low and high camshaft lobes are included. It also provides for optimal fuel control and VTEC engagement control, which also allows you to keep your old key. With the Apexi V AFC2 digital fuel controller, you can utilize your existing ecu without having to have your key reflashed. Alternatively, if you wanted to spend a lot of money, you could purchase Kpro which gives more control over everything. Another option is to run the DX ECU with a Vtec controller hooked in to regulate the vtec system. Getting an EX ecu with an EX engine harness is one of your wiring possibilities when completing a change like this. ECU tweaks and wiring for head/engine swaps The DX/LX engine has an advantage over the EX engine due to its lower compression ratio when combined with Vtec, this results in significantly more air entering at higher RPMs. Vtec is gained by putting an ex-head on the DX/LX bottom. If you intend to turbocharge, a lower compression ratio will be advantageous. The EX head will fit on the LX block without modification.įor example, the LX and DX blocks are identical with the exception of the compression ratios, which are 9.9 and 9.5, respectively. Many of the engine heads can be swapped out, so non VTEC heads can be swapped for better flowing and "higher compression" heads or for different cam profiles. This shows the importance of doing your research. There are many swaps done that only gain around 10hp, but with other mods, the advantages add up with the new engine usually having more potential for tuning, or for example adding forced induction. Swapping the engine is always a large task, and the complexity depends on the donor vehicle's generation compared with your own. Often when you've paid out for lots of modifications for your engine, sorted out the inherent problems, and finished the project you discover that you could have got similar power just by swapping the engine for a more powerful unit.Ī much simpler route to adding reliable power to your car, and in the case of many swaps on the Civic, are virtually a bolt in mod.ĭoing an engine swap can also give you a better base to work from for your tuning projects and by applying additional mods to this new engine, you can achieve a much higher power figure that you never could have done on the original unit. Popular engines suitable for Civic engine swap projects Some of the best and most impressive power upgrades include engine swaps, so rather than spending money on tuning up your engine see which of the following engines will help you to reach your power goals on your Civic.Įngine swaps are a great way to bump up the power on your Civic and we've seen some pretty awesome conversions, turbocharged engines, and cross platform swaps. Finally, the B18C1 can be found in any 1994-2001 Integra GS-R and its more powerful relative, the B18C5, was available in all 1997-2001 (exclude 1999) Integra Type R.Here is a list of engines our members have put or tried in their Civics, along with a pros and cons guide to each one. ![]() Only the 1992-1993 Integra GS-R featured the B17A1. In North America, B16A2 and B16A3 engines were offered in the 1999-2000 Civic Si and 1994-1997 del Sol VTEC, respectively. ![]() Japanese-only B18C engines can be found in 1993-2001 Integra Si VTEC, SiR-G and Type R chassis, however, the Type R's powerplant is a markedly different, more powerful version. Only the Japanese market 1997-2001 Civic features the unique B16B engine. Similar 1.6L engines can be found in Japanese-only 1989-1993 Integra RSi and XSi models. B16A engines are native to most 1987-2000 Japanese-spec Si, Si-II, SiR and SiR-II-badged Civic and CRX chassis. The rest can be found in North American-spec vehicles. Engine codes not concluded with a numeral are sourced from Japanese-only (JDM) chassis. ![]()
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