engine poll

Your premier source for information on the Turbo KA: KA24E-T and KA24DE-T (KA with aftermarket turbo kit)!
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x240xdrifter
Posts: 2728
Joined: Sat Nov 27, 2004 3:38 pm
Car: 1991 Nissan 240sx

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So I've been wondering and racking my brain on posible engine solutions to gain a decent amount of power( I know what your thinking, "not another sr20 driftastic dawg poll") and I got thinking, is it worth it to turn my ka24e to what I would like to call project junkyard turbo, where I will build and run a ka24e-t sourcing parts from junkyards and budget diy shops in hopes of doing this under 3000 dollars, 2000 if possible. I mean the the ka24e is a pretty stout motor and I'm already familiar with it cause I had to swap it for another( damn spun bearings) so I know it like the back of my hand. what sparked this idea is a article in Grassroots motorsports "The ultimate guide to DIY turbos and your car" April 2005. very good issue with tons of info and it just got the flames roaring. but this just puts me between a rock and a hard place becuase I can't make up my mind if its really worth it or not. I will be using this car for right now as a daily driver( so I don't need alot of boost; 10-14psi max) and a weekend warrior ( drift/time attack). the only down side I see in this is the fact its a sohc and the fact that I only get 1 valve for the exhaust stroke so I feel like that would prove to be an issue making a efficent turbo setup. the upsides though, I already got the motor, its got great compression ratio for a turbo setup, and its something different and fun project. so I ask of you, should I make a ka24e-t or just save the money for a better motor, for example rb20/ca18?


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Bosrudorfer
Posts: 997
Joined: Fri Sep 16, 2005 4:48 pm
Car: S14

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x240xdrifter wrote:So I've been wondering and racking my brain on posible engine solutions to gain a decent amount of power( I know what your thinking, "not another sr20 driftastic dawg poll") and I got thinking, is it worth it to turn my ka24e to what I would like to call project junkyard turbo, where I will build and run a ka24e-t sourcing parts from junkyards and budget diy shops in hopes of doing this under 3000 dollars, 2000 if possible. I mean the the ka24e is a pretty stout motor and I'm already familiar with it cause I had to swap it for another( damn spun bearings) so I know it like the back of my hand. what sparked this idea is a article in Grassroots motorsports "The ultimate guide to DIY turbos and your car" April 2005. very good issue with tons of info and it just got the flames roaring. but this just puts me between a rock and a hard place becuase I can't make up my mind if its really worth it or not. I will be using this car for right now as a daily driver( so I don't need alot of boost; 10-14psi max) and a weekend warrior ( drift/time attack). the only down side I see in this is the fact its a sohc and the fact that I only get 1 valve for the exhaust stroke so I feel like that would prove to be an issue making a efficent turbo setup. the upsides though, I already got the motor, its got great compression ratio for a turbo setup, and its something different and fun project. so I ask of you, should I make a ka24e-t or just save the money for a better motor, for example rb20/ca18?
Some of the stuff you say is funny.

1st. $3K will get you a very good kit, no junkyard crap. I've spent alittle over $3K and I run Blitz, HKS, JGS products.

2nd. "I will be using this car for right now as a daily driver so I don't need alot of boost; 10-14psi max" Do you realize how much boost that really is? 10psi would be the max on stock internals that I would advice with 6-7psi for daily driving... maybe even less.

My vote is for a KA24DE then go KA24DE-T. They sell for around $500 as you know and are good engines. Otherwise spend $3k on a SR and call it done.

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x240xdrifter
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Joined: Sat Nov 27, 2004 3:38 pm
Car: 1991 Nissan 240sx

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ya sorry for noobishness of me, I have a very rough knowledge of turbos, I would rather keep the sohc cause I have it, save me money. plus if I go with this I will fully rebuild the engine with new parts and beef it up alittle but then again might as well get a ka24de if I'm going to have it out and rebuild it anyway so getting a ka24de is deff a option but that just adds more time the process. I also want to keep the luxury's since this will be a daliy driver, for example a/c and power steering but haven't fully decided if its worth it. right now I'm just doing all the research I can and preparing by planning it all out, thanks for the input

KATwo40
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Joined: Tue Feb 01, 2005 9:40 am
Car: 1993 240sx KA-T

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Honestly, if you're going to swap anything, why not do a large displacement swap? You know, like an LS-1, or more affordably, the LT-1.

The LS-1 is over 300hp N/A and the LT-1 is really close to 300hp, N/A. That gives a MUCH better base for building.

Don't get me wrong, I love my KA-T, but I already had the DOHC engine in the car. If you have to swap and do wiring, plumbing, etc., I'd say go for a better starting platform.

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x240xdrifter
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duely noted

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lilskyline240
Posts: 1887
Joined: Fri Oct 14, 2005 9:55 am
Car: 90 240sx w/ rb30det

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just turbo your stock motor with a small t25 from an sr20 run 10psi and call it a day...shouldnt cost you more than 1000 bucks for the turbo, manifold, some 370cc injectors, SAFC, stock SR20 dowpipe and intercooler

theres your RELIABLE daily driver and your weekend autocross car

KATwo40
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Car: 1993 240sx KA-T

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That's certainly another option, for sure. I think he'd be more like around $1500, because an intercooler would be in order with such a small turbo.

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x240xdrifter
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Car: 1991 Nissan 240sx

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what would I expect for power output using a small sr20 turbo and so forth.

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darko240sx
Posts: 87
Joined: Sun Aug 21, 2005 4:40 pm
Car: 1989 240sx

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Ok, you have the motor and she’s got good compression. ka24et is a good set up ,if done right . And if you blow a ka24e you can find one for cheep!! Parts are cheep as hell too! Go ka24et that’s what i am doing again/did before.

Florida240sx
Posts: 11114
Joined: Thu Jul 01, 2004 7:17 am
Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5
Location: DeLand FL

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Just did a budget set-up for my friend. Cost him just over $1300. With NEW Safc II, Custom downpipe, ngk plug and wires, Fmic etc.. Borrowed my wideband for a tune. Now he needs a clutch.Keep the SOHC. It responds to boost very well. Get a 2nd SOHC with blown HG and build it up with forged.

KATwo40
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Car: 1993 240sx KA-T

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x240xdrifter wrote:what would I expect for power output using a small sr20 turbo and so forth.
I wouldn't look for more than about 230-240whp.

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x240xdrifter
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thats all I need, I want to it as nimble as hell and not overload the car with high hp, I want to make a good repsonse car that is BALANCED, something with a good power to weight ratio, something smooth for the track but not as unbearable to run out and get milk.

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lilskyline240
Posts: 1887
Joined: Fri Oct 14, 2005 9:55 am
Car: 90 240sx w/ rb30det

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t25 should suit you well then.....and if you decide in the future that you want more power...just put a t28 on there and your good for over 300hp

KATwo40
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Car: 1993 240sx KA-T

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lilskyline240 wrote:t25 should suit you well then.....and if you decide in the future that you want more power...just put a t28 on there and your good for over 300hp
T28 isn't gonna make over 300whp on the KA. The T3 Super 60 will barely make 300whp.

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lilskyline240
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Car: 90 240sx w/ rb30det

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i meant to say gt28...sorry missed a letter

KATwo40
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Car: 1993 240sx KA-T

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300whp is still a push on a GT28RS. It'll take very high boost to get there, which is not advised on a stock KA.

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Jookmasta
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Joined: Fri Apr 18, 2003 3:26 pm

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well i know that gladman manifold is a great piece so b/w that and the jgs, u cant go wrong. i say forget the t25 and just start off with a t3/t4. if u want quicker spool, get the .48 housing...............

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nelson8708
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Car: 1989 Nissan 240sx Fastback
1994 Acura Integra LS
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keep the ka24e and add the Turbo. I did and it only cost me 600$. But however i make my manifold, ic piping, and down pipe. I am running the T25 off of an SR. I hit boost by 2500rpms. I am running a fmu for now though. In a month or two when i get the money i am investing in some 460cc injectors, walbro pump, safc, and a LM-1 wide band. I will be running 7-8psi and will probably be in the mid to high 13 range. I am also building another sohc with forged pistons and that will get me mid to low 12s once i put a t3/to4e turbo on there with about 15-18psi. Gladman did a 12.2 on 18psi with ****ty street tires.

Good luck with your build.


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