Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk > S Chassis

S Chassis Technical discussion related to the S Chassis such as the S12, S13, S14, and S15.


Reply
 
Thread Tools Display Modes
Old 04-02-2008, 12:48 PM   #1
DriftinAndy
Leaky Injector
 
DriftinAndy's Avatar
 
Join Date: Mar 2006
Location: ontario, Ca
Posts: 136
Trader Rating: (0)
DriftinAndy is making a name for him/her selfDriftinAndy is making a name for him/her self
Feedback Score: 0 reviews
Send a message via Yahoo to DriftinAndy
!!Questions About Head Upgrade, KA-t builders help!!

I got a few questions about upgrading my KA stock head. My car is in a shop right now the 1st and 2nd cylinders are EF'D up, i want to upgrade it so i can install a turbo later on. I want to keep it as a dialy driver, so i just want to have about 240-320hp. Im already going to port and polish the head. So my question is... What can i do to the head to upgrade it now so i can install a turbo later?? Any info on type or brands of cams,valves (stock or oversized) etc...
I never built a turbo'd car, so I dont have any experiance on building an engine for a turbo. I know there are some other things to do when i install a turbo, cuz 240-320 is a pretty wide range. Ill just tweek it later when i get a chance for the turbo.
__________________
"BEHOLD A PALE HORSE...
DriftinAndy is offline   Reply With Quote
Sponsored Links
Old 04-04-2008, 06:38 PM   #2
Pacman
Zilvia FREAK!
 
Pacman's Avatar
 
Join Date: Sep 2003
Location: Ohio
Age: 33
Posts: 1,147
Trader Rating: (1)
Pacman has a spectacular aura aboutPacman has a spectacular aura aboutPacman has a spectacular aura aboutPacman has a spectacular aura aboutPacman has a spectacular aura aboutPacman has a spectacular aura about
Feedback Score: 1 reviews
A lot of the aftermarket cams need to have the head clearanced for the bigger cams. They remove metal somwhere for fitment. 5-angle valve grind with oversized valves would help breathing. Search KA valves on google and you'll find what I'm talking about. If you are the one port and polishing make sure to flow bench the head. If you don't know what you're doing you can remove to much and have ill-effects or have unequal flows between ports/cylinders.
__________________
In search of a Zenki S14 right side (passenger) fender and straight hood that are rust free.
Pacman is offline   Reply With Quote
Old 04-04-2008, 07:21 PM   #3
number80
Leaky Injector
 
number80's Avatar
 
Join Date: Jul 2007
Location: Minnesota
Posts: 100
Trader Rating: (0)
number80 is making his/her stupidity well-knownnumber80 is making his/her stupidity well-knownnumber80 is making his/her stupidity well-knownnumber80 is making his/her stupidity well-known
Feedback Score: 0 reviews
I'm building my setup too but I'm going to leave the head stock. Many people have made over 400hp on stock heads, some even with stock cams. I say with you only wanting to make 320hp just leave it stock and spend the money on something else.
number80 is offline   Reply With Quote
Old 04-05-2008, 03:30 PM   #4
Future240
Super Moderator
 
Future240's Avatar
 
Join Date: Jun 2007
Location: Places
Age: 33
Posts: 12,711
Trader Rating: (17)
Future240 is close to perfectionFuture240 is close to perfectionFuture240 is close to perfectionFuture240 is close to perfectionFuture240 is close to perfectionFuture240 is close to perfectionFuture240 is close to perfectionFuture240 is close to perfectionFuture240 is close to perfectionFuture240 is close to perfectionFuture240 is close to perfection
Feedback Score: 17 reviews
Send a message via AIM to Future240 Send a message via MSN to Future240 Send a message via Yahoo to Future240
If you are trying to turbo the ka, ka-t.org is a good place for info. The whole forum is dedicated to it.
Future240 is offline   Reply With Quote
Old 04-07-2008, 12:25 AM   #5
DriftinAndy
Leaky Injector
 
DriftinAndy's Avatar
 
Join Date: Mar 2006
Location: ontario, Ca
Posts: 136
Trader Rating: (0)
DriftinAndy is making a name for him/her selfDriftinAndy is making a name for him/her self
Feedback Score: 0 reviews
Send a message via Yahoo to DriftinAndy
thanks for the info guys,..my buddy was telling me about letting it breath easier by porting it,..hes taking it to a machine shop to get it done, so yea i have know idea on doing that type of work...
__________________
"BEHOLD A PALE HORSE...
DriftinAndy is offline   Reply With Quote
Old 04-17-2008, 02:08 AM   #6
Addicted2Kouki
Nissanaholic!
 
Addicted2Kouki's Avatar
 
Join Date: Nov 2006
Location: LONG BEACH
Posts: 2,364
Trader Rating: (15)
Addicted2Kouki is close to perfectionAddicted2Kouki is close to perfectionAddicted2Kouki is close to perfectionAddicted2Kouki is close to perfectionAddicted2Kouki is close to perfectionAddicted2Kouki is close to perfectionAddicted2Kouki is close to perfectionAddicted2Kouki is close to perfectionAddicted2Kouki is close to perfectionAddicted2Kouki is close to perfectionAddicted2Kouki is close to perfection
Feedback Score: 15 reviews
If your goal is 240-320hp.
I would put that money towards the block instead of the head.

The piston rings are the main weak point in KA's when turboing.
__________________

Quote:
Originally Posted by coreansurfer View Post
zenki's are for poors and lames

with the exception of norm who is big ballin
FS:CUSCO,GREDDY,KA-Tparts
Addicted2Kouki is offline   Reply With Quote
Old 04-17-2008, 10:24 AM   #7
98s14inaz
Zilvia FREAK!
 
Join Date: Feb 2003
Location: Nonya
Posts: 1,367
Trader Rating: (1)
98s14inaz is close to perfection98s14inaz is close to perfection98s14inaz is close to perfection98s14inaz is close to perfection98s14inaz is close to perfection98s14inaz is close to perfection98s14inaz is close to perfection98s14inaz is close to perfection98s14inaz is close to perfection98s14inaz is close to perfection98s14inaz is close to perfection
Feedback Score: 1 reviews
Quote:
Originally Posted by DriftinAndy View Post
...so i just want to have about 240-320hp...
That's it? You can do that easily with the stock head, s13 cams, and some fresh valve seals. Spend your money on the bottom end, fuel, and engine management. P n' P wouldn't hurt though.
__________________
-Retired
98s14inaz is offline   Reply With Quote
Old 04-27-2008, 05:43 AM   #8
fromxtor
Post Whore!
 
fromxtor's Avatar
 
Join Date: Aug 2005
Location: NC
Age: 40
Posts: 3,012
Trader Rating: (23)
fromxtor is close to perfectionfromxtor is close to perfectionfromxtor is close to perfectionfromxtor is close to perfectionfromxtor is close to perfectionfromxtor is close to perfectionfromxtor is close to perfectionfromxtor is close to perfectionfromxtor is close to perfectionfromxtor is close to perfectionfromxtor is close to perfection
Feedback Score: 23 reviews
Send a message via AIM to fromxtor Send a message via Yahoo to fromxtor
^truth

Forged pistons, rods, ARP HS, new bearings, gaskets you should be good. Stock head would be fine for your goals, but I would get a 3 angle valve job, and make sure your valvetrain is still within tolerences.
__________________
Seller feedback>>http://www.zilvia.net/f/showthread.p...light=fromxtor
fromxtor is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 07:05 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
vB.Sponsors
Copyright © 1998 - 2019, Zilvia.net™