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 > Engine Tech

Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series.


Reply
 
Thread Tools Display Modes
Old 10-20-2019, 04:21 PM   #1
brandonsethmcneely
 
Join Date: Oct 2019
Location: US
Age: 46
Posts: 1
Trader Rating: (0)
brandonsethmcneely is an unknown quantity at this point
Feedback Score: 0 reviews
Tuning help! Ka24de

I bought a 95 240sx .that came in boxes of parts ,i have about got it assembled stock ka24de with a turbo im told has a spring for 11 or 22 lbs upgraded mass airflow and 550 cc injectors, i have never built a turbo car.what would be my best option for turning, i know i can only do so much with stock internals i just want as much as i can get out of this ka24de to play with will i build another engine for it thanks in advance.

Sent from my SM-N950U using Tapatalk
brandonsethmcneely is offline   Reply With Quote
Sponsored Links
Old 10-20-2019, 07:03 PM   #2
jtrav23
 
Join Date: Sep 2015
Location: Ulster, NY
Posts: 16
Trader Rating: (0)
jtrav23 is an unknown quantity at this point
Feedback Score: 0 reviews
Figure out that spring, probably going to need to get a lighter one.

Then you could use a fmu for light boost up to 7-8 psi or run a mega squirt pnp for a little higher but stock internals won’t be able to go much past 13psi depending on the turbo size.




Sent from my iPhone using Tapatalk
jtrav23 is offline   Reply With Quote
Old 10-20-2019, 07:28 PM   #3
S14rebuild
Zilvia Junkie
 
Join Date: May 2019
Location: Florida-FAIL
Posts: 562
Trader Rating: (3)
S14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud of
Feedback Score: 3 reviews
No 22psi stock internal..BOOM

TUNING OPTIONS
mega squirts
Haltech
Rs entntphy
Greddy emange
Nistune
S14rebuild is offline   Reply With Quote
Old 10-21-2019, 12:04 PM   #4
OnTheChip
Zilvia Member
 
OnTheChip's Avatar
 
Join Date: May 2013
Location: Burgaw, NC
Posts: 288
Trader Rating: (0)
OnTheChip is an unknown quantity at this point
Feedback Score: 0 reviews
You should also have a look at the NismotronicSA tuning system.
OnTheChip is offline   Reply With Quote
Old 11-05-2019, 08:45 PM   #5
kennedy8383
Zilvia Member
 
kennedy8383's Avatar
 
Join Date: Feb 2012
Location: Kanada
Age: 36
Posts: 184
Trader Rating: (1)
kennedy8383 is an unknown quantity at this point
Feedback Score: 1 reviews
Quote:
Originally Posted by S14rebuild View Post
No 22psi stock internal..BOOM

TUNING OPTIONS
mega squirts
Haltech
Rs entntphy
Greddy emange
Nistune

megasquirt = Engine management tuning

mega squirts = Porn

lol.
kennedy8383 is offline   Reply With Quote
Old 11-09-2019, 03:07 AM   #6
Kingtal0n
Post Whore!
 
Kingtal0n's Avatar
 
Join Date: Jul 2005
Location: South Florida
Age: 36
Posts: 4,298
Trader Rating: (17)
Kingtal0n is a name known to allKingtal0n is a name known to allKingtal0n is a name known to allKingtal0n is a name known to allKingtal0n is a name known to allKingtal0n is a name known to allKingtal0n is a name known to allKingtal0n is a name known to allKingtal0n is a name known to allKingtal0n is a name known to allKingtal0n is a name known to all
Feedback Score: 17 reviews
Send a message via AIM to Kingtal0n
4x 550cc injectors are good to around 350rwhp iirc
depends on fuel pressure o/c


I would not take factory KA24DE much if at all over 6,000rpm and in fact suggest you limit to 5800rpm for safety, as this is the engine's primary weakness.

Everything the KA24 lacks, the 'square' 86x86 sr20det/4g63/2jzgte type engines make up for so I suggest you long term plan to upgrade to an proper turbo engine if possible


As for how much boost is typically run on stock KA24 engines: 7 to 12psi (roughly 280-320rwhp I guess is fine) It depends on the condition of the engine, and as usual things like compression ratio and treatment. With methanol injection it could see 350rwhp or even 380rwhp reliably I believe but have never tried.
With E85 perhaps even more is possible (I wouldn't be surprised at 420rwhp) perfectly safe as long as it's made with boost (cylinder pressure) and not RPM.

Most stock KA engines on gasoline fuels (93 octane) should use turbos that flow around 40lb/min max To keep wheel weight down (fastest spool). I mention because the turbo in picture looks far too large to be useful. maybe Im wrong though, sometimes big turbos surprise me.

------
Tuning wise, get the cheapest computer possible (try to spend under $500) mainly because
KA specific stuff is hard to re-sell

The ideal computer is Power FC which uses a maf sensor so you can keep it simple. But I don't think they even make a PFC for the KA engine??

The best ecu would be AEM or Haltech (obviously?) but nobody sane would spend that kind of money on a stock KA engine.
Kingtal0n 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 03:32 PM.


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