NA KA24DE Tune - SR20 Forum
 
Thread Tools
#1 (permalink) Old 04-14-2009, 05:56 PM
SE-R Lightweight
 
Join Date: Mar 2005
Location: Raleigh NC
Posts: 312
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 6 reviews
(Thread Starter)
NA KA24DE Tune

Calum

My name is Adam and I have been emailing you concerning the NA ka going into my car. I have been emailing you from amyasin@gmail.com. I know that you had stated that you never dealt with a higher compression KA. I figure you have been busy so hopefully i am not bugging you too much. With that said after reading threads and talking to some tunners I concluded the following:

1. Though I have a turbo MAP setup for 450cc injectors and a N60 MAf; I have been told that I better off starting off with a stock tune; I however have the following concerns:
  • Will the Car start with a N60 MAF and bigger injectors with the stock tune on the ECU?
  • Will it start with a after market fuel pump

If the will then I should be good to go. If not I would look for a KA tune with a N60 maf and fuel pump and have the tuner start from there. If I can start with the turbo tune then I would like to know that as well. If it helps to talk over the phone I would be open to do that just let me know a time and date you are free. Again I dont mean to be persistent I am very close to putting the car together and want to have my ducks in a row.

Just in case anybody else wants to chime in. I have the following setup

Rebuilt KA. Hope to acheive 170-180 whp with no issues or concerns about it s reliability.

SOHC pistons (raising the compression to 11:1)
248/248 exhaust cam swap
N60 Map
Deatsch works 450cc inhectors
Walboro Pulley
OBX Header
Underdrive pulley (not sure if I will be using it or not)
Ebay intake
Calum ECU
LC-1 wideband
flywheel, clutch, and short shifter

Thanks Again

Adam
yasin02 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 04-14-2009, 08:49 PM
ClamSlut
 
Calum's Avatar
 
Join Date: Dec 2001
Location: Lubbock, TX
Posts: 5,043
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 26 reviews
Hi Adam,

No prob, post questions here.

The 450 injectors are really way to big for an NA application.

You've really got two hurdles-

1-I've never worked with those injectors
2-I've never worked with a high compression KA.

There's not much I can do about #2, but for #1 would you consider changing the injectors? The largest injector I've worked with on a NA engine is the stock DET 370 injector, but with the setup your describing you could even run just fine on the stock KA injector.
Calum is offline  
#3 (permalink) Old 04-14-2009, 09:11 PM
going thru life @ 1 bar
 
Join Date: Mar 2004
Location: Eastern, NC
Posts: 2,156
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 21 reviews
You could always get a R/T ECU and go to dyno, (use smaller injectors) start with a stock tune as baseline, and tune it to your setup?

92 NX2000 2860RS
unijabnx2000 is offline  
#4 (permalink) Old 04-15-2009, 12:00 AM
SE-R Lightweight
 
Join Date: Mar 2005
Location: Raleigh NC
Posts: 312
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 6 reviews
(Thread Starter)
I understand about not dealing with the High compression part.

I will double check but at this point due to my horsepower goals it maybe worth while to switch to the 370cc and stock MAF and tune ut. I have talked to other people that have done NA and they said the injectors are fine. However lets just say I stick with a stock MAF and injectors. Will the tunner be able to handle the higher compression side of things between the basemap and the wideband hooked up on the car?

Regardless if it is ok I will give you a call tommrrow night
yasin02 is offline  
#5 (permalink) Old 04-15-2009, 12:07 AM
SE-R Lightweight
 
Join Date: Mar 2005
Location: Raleigh NC
Posts: 312
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 6 reviews
(Thread Starter)
for reference here are the threads I have been reading through

http://www.240sxforums.com/forums/ka...0hp-170tq.html

http://forums.freshalloy.com/showthread.php?p=1556238

thanks again for your patience and putting up with the multiple inquries
yasin02 is offline  
#6 (permalink) Old 05-31-2009, 12:54 AM
SE-R Lightweight
 
Join Date: Jul 2001
Location: Kokomo, IN
Posts: 344
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Let me add a chime here. (It's my bi-monthly checkin time)

I am running a similar KA N/A setup with Calum's RT and I'm using the Nismo 480cc (though really more like 440cc) injectors. My reason for these injectors is because I plan on going turbo in the future, very soon now. And, I'm running E85. I'm putting down somewhere between 160 and 170HP. (I dynoed at 160 on gas last year). My duty cycles are still up in the low 70% range at peak load because of the E85. I'm going to run a Nismo FPR for a 4 bar fuel pressure setup that should hopefully bring my DC's back down a little bit.

My point in telling you this is that if you plan on doing anything in the future, after your buildup, i.e. turbo, E85, or something else. The extra fueling headroom won't hurt. On a side note, my engine ran unquestionably better after the injector swap in spite of the fact that they are higher flowing injectors. This tells me that worn or used injectors do deteriorate in performance without you maybe knowing it. My stock KA injectors had about 70K on them.

'98 S14, KA-T CalumsultRT GT2871 6.5psi 218HP 13.6 1/4mile
'98 Lincoln Towncar K&N and 4.6 liters of MADNESS BABY
'05 Subarau Outback LL Bean Edition
bmoses is offline  
#7 (permalink) Old 05-31-2009, 02:49 AM
SE-R Newbie
 
Join Date: Dec 2007
Location: Wichita,KS
Posts: 54
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I recommend at least 1000cc injectors with E85 if going turbo.It didnt take much to get my 780cc injectors to hit 80% dc on E70 with a 50 trim T3/T04E keeping max boost under 1 Bar.I'm running a Walbro 255lph HP in-tank fuel pump also.

This is for S13 KA24DE btw.

Last edited by ghostchild316; 05-31-2009 at 02:51 AM.
ghostchild316 is offline  
#8 (permalink) Old 05-31-2009, 06:42 PM
SE-R Lightweight
 
Join Date: Jul 2001
Location: Kokomo, IN
Posts: 344
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Yeah I can see that I underestimated the amount of additional fuel that would be required with E85. I'm hoping to be able to keep it below 85% with 4bar fuel pressure and 6 to 7psi with a GT2871. We'll see

'98 S14, KA-T CalumsultRT GT2871 6.5psi 218HP 13.6 1/4mile
'98 Lincoln Towncar K&N and 4.6 liters of MADNESS BABY
'05 Subarau Outback LL Bean Edition
bmoses is offline  
Sponsored Links
Advertisement
 
 

  SR20 Forum > Vendor Customer Support > CalumSult (Archived for Informational Purposes)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome