Prelude SI 2.0

[MrOldLude]

You know your stuff carotman.

As far as 3rd generation ludes go, the engine options for 88-89's were the B20A3 which was a carb'd 2.0. These are the S-models. The more prevalent and desireable engine for the US domestic market was the B20A5 engine on the Si's. More hp and torque plus fuel injection. 4ws was an option. Progressing to 90-91, the carb'd engine was discontinued. The 2.0 Si was held over, but in addition, Honda offered a 2.1 (B21A1). Torque was increased only slightly as was hp (but only maginally... 8ftlbs and 5 hp respectively)

In the grand scheme, the 2.1 was a good idea. Unfortunately, it was the guinea pig for fiber-reinforced cylinder walls. In time, we've found on my primary board (preludepower.com) that the b21a1's are subject to the cylinder walls wearing away and oil-consumption. Options include rebuilding the engine and resleeving it with iron-liners, or simply buying a JDM (prelude spec) B20A.http://www.preludepower.com/Specs.html

Since I don't know too much about accords yet, I might say the direct swap is possible, but with the way the engine is canted (there is a 33 degree difference) there could be problems.


Look anything like yours?

[carotman]

There are indeed problems.

The Accord uses a cable clutch and a shifter rod (just like the Civic/Integra)

The engine mounts do not line up and custom fabrication would be necessary. So far, no one makes engine mounts for the later serie of B20A engines. Making this swap a not so good option.

www.placeracing.com makes a mount kit for the Integra engines inf you want to put one in the Accord.

[MrOldLude]

Yeah, that would certainly cause problems. My linkage is a cable, but the clutch is hydraulic as opposed to a mechanical release system.

[meanaccord]

so my boy has a lude with an b21a1 or something and it tilts towards the firewall. I was told it wouldnt fit in my 89 accord lx due to the fact of the different tilt. Prove me wrong

[Sean]

sure the accord b20a lean towards the radiator. your speaking of the b20a5 yep yep leans towards the firewall.

[custom88]

I have a motor out of an 87' lude in my car and all that I had to do is swap out all of my mounts and wiring harness and the intake and exhuast manifolds to get the motor to fit right this is suggested anyways due to the fact that you know that your stuff works properly and it really wasnt that hard.