KA-T Please, but SOHC or DOHC KA?

Information on the naturally-aspirated KA24E and KA24DE engines.
dareo
Posts: 892
Joined: Thu Jul 17, 2003 10:13 am
Car: 1993 Q45, 1989 240sx

Post

I'm 90% sure i want to turbo a KA, it just makes too much sense for my money. But i have an 89, with 222k miles on it. The motor runs good, but consumes some oil. timingchain was replaced. #1: dry: 142psi wet: 160psi#2: dry: 141psi wet: 164psi#3: dry: 146psi wet: 167psi#4 dry: 151psi wet: 162psi^^compression test on my SOHC KA. I'd like to run an SDS management system either way, and i'd like to rebuild either engine with forged pistons, new bearings seals ect. Daily Driver, cant be w/o car more than a week. Downsides to the SOHC--no oil squirters, less aftermarket, fewer engines and trannies in junk yards.

I'm hoping to run about 300+whp , anything i can run on pump gas with reliability.

Buying a DOHC KA to rebuild gives me basically more support and more headflow and better valvetrain.

Is the KA24DE going to be worth the extra trouble of swapping? I'd like this to be a rebuild a spare engine type of project. If i stayed SOHC i could start installing stuff and tuning it before even taking my engine out, and if/when i blow it up i could drop in my built longblock.

What are your guys thoughts with my situation in mind? Please recommend an engine and/or post pros and cons of each that i may have left out. I wanna be able to progressivly build this car up, and drive it a lot for years to come. I've much to learn yet.


User avatar
hannibal
Posts: 9680
Joined: Wed Sep 11, 2002 2:38 am
Car: Red Line to Glenmont
Location: Washington DC

Post

Wow thats great compression for a 222k mile motor!Whne these questions come up, people usually say to stick with what you have. From what Ive read, the KA-E is a capable engine to work with, especially for 300whp. But if your gonna build up a motor, I dont see why you wouldn't wanna go with the DE for the advantages you listed.But if you run the SDS with the SOHC and eventually drop in a built DE, you would have to retune the SDS. But I guess you would retune it any time you switch to a built motor.

Jay


Return to “KA24E / KA24DE Forum”