Nissan 240SX Forums banner
Cancel
Create thread New Garage Forums

KA24E build

Tags
ka24e
1 reading
Jump to Latest
8.3K views 27 replies 7 participants last post by  nicklebagfarley  
B
#1 ·
i am wondering if any one has done a high compression build on a KA24E, this is what i have in mind .

oversize block to 0.30 over
recondition cylinder head and 3 angle valve job
port and polish
polish crankshaft
new bearings
resurface cylinder head 0.30-0.60 to raise compression

the compression can be high because 97 octane fuel will be used i am looking for suggestions
and also tips and possible gains???
 
#2 ·
if your doing a high compression "build" on an ka-e you might as well do a stock rebuild as well. In the process, put in .020 over pistons, but it really doesnt matter since your getting a worthless amount of displacement. after that, you're going to get much more gains out of a ka from building the head. My Home Page
Theres a link to finding all the right parts for building your head, also. you can use an SR adjustable cam gear instead of using all those bushings. After that, youre going to want to do a lot of tunning, because more power can be unlocked from that than building anything in your bottom end.
 
#3 ·
Can you really use an SR cam sprocket? If your going to over-bore you might as well go with a .040 or even .060 if you want a bump in torque. Depending on what kinda power band your looking for you could go with a NMS R4 cam, solid lifters, and if your gonna run 97 octane you could probley go with 11.0:1 or so compression.
I'd say that ^ and a couple of other goodies with some tunning would get you around 175 - 185 chp, maybe more.
 
#4 ·
ive heard that you can, and ive checked pictures, both confirm you can. i just need to see it done to be 100%

where are you sourcing solid lifters? because i cant get ahold of hybrid ka about them
 
#5 ·
You have to email:
SLC@Hybridka.com They take orders at special request.
http://www.hybridka.com/

If not them i'm sure a good machine shop could hook you up. Really all they do is take the hydraulic lifter out, drill a hole through the rocker, thread it, and screw in a stud.
 
#7 ·
Well that sucks. Maybe I'm wrong about this but didn't some ka's (not 240's) come with solid adjustable rockers? Maybe I'm thinking of the Z24, but they look pretty similar.
 
#9 · (Edited)
#11 · (Edited)
Nah, but I have been doing a little research on the Z24 rockers. I need to get a set to check ID, OD, rocker ratio ect, but It looks like they will fit.
I'm gonna try to get a hold of a Datsun FSM and see if I can get any specs.
 
#15 ·
If you are building a SOHC and all you doing is High Comp all motor build you could really do it without spending a whole lot of money.A camshaft, solid lifters,cam gear and I think that is about it.
 
#18 ·
O&J, on your stage 2 and 3 (SOHC)mechanical cams, do the cam towers have to be milled down? I'm assuming they do but just wanted to get some specs so when I finally get all my head parts I can assemble it trouble free.
 
#27 ·
Hydraulic Lifters:
Good: Little to no maintenance
Quite operation

Bad: Less accurate
More prove to floating
Cannot handle excessive RPM's

Mechanical Lifters:
Good: More accurate reading of the cam
Fully Adjustable
Can handle more RPM's

Bad: Noisier
Have to manual adjust them
 
Nissan 240SX Forums
posts
1.6M
members
94K
Since
2002
A forum community dedicated to Nissan 240SX owners and enthusiasts. Come join the discussion about performance, builds, engine swaps, turbos, modifications, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
S13 240SX (89-94) New Member Introductions General Tech