KA-T Build concerns.

ONLY for ADVANCED technical discussion about the 240sx!
Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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My main concern is clearance I can't find any reliable information on clearing you A/C, Power Steering, and Master Cylinder. Secondarily, would this be a good setup to reach mid 200's to (if even possible) low 300's? I like the idea of having a quicker spool than the T3/T4. Ideas, suggestions, and anything I might be missing?

S15 GT28R Turbo
555cc NISMO Injectors
Enthalpy Rom Tune
CX Racing S13 SR Intercooler
ISIS V2 Bottom Mount Manifold
Powered By Max Cobra Downpipe
Walbro 255lph Fuel Pump
Emissions / EGR Removal
Wideband oxygen sensor (Innovate, LC-1 or AEM)
JGS Oil Line Kit
S13 248 Degree Cams
Megan Racing Type 2 Cat Back Exhaust


compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

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I've seen a setup similar to that, 18 psi running 385 whp. (only difference is that he had larger cams) so very possible. As for the clearance, do researcj on the manifold itself. Its usually all in how the manifold is made that causes clearance issues. My experience though, is almost all bottom mounts I've dealt with have cleared the important stuff.

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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Good deal. I've seen guides on KA-T with a bunch of "the best" manifolds but I am failing on finding any info regarding clearance...it's kinda frustrating. A lot of the people I have found with successful KA-T setups wither have WAY more horsepower than I am looking for and the majority of the "smaller" setups have the A/C and Cruise Control ripped out. I perfer the idea of a top mount but if I have to give up A/C in Florida forget about it.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

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What I would do is, since isis is pretty much a enjuku racing backed product, I would call enjuku and see if they have had any issues. They are good guys and test almost all of there products.

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allenms240
Posts: 661
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Car: 1991 Nissan 240SX

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I would definitely consider buying a heat shield for the BMC, and a heat blanket for the turbine itself. That way you don't boil your fluids. As far as fitment, I wouldn't know.

liquid_cool
Posts: 1700
Joined: Sat Jul 05, 2008 3:02 am
Car: 1990 Nissan 240SX KA24DE-T swap 8.6:1cr, duelsprings, ti retainers,supertech pistons, K1 H-beems balanced internals ect ect

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there is an easy way to add some room for your master and behind the fire wall to tuck your feed lines..(Hocky Puck Motor mounts)....let me give ya details sire...if you drill a hole throu 2 pucks "for each side" and use a strong grade 8 bolt to go throu them...you have a fast and easy motor mount that is allmost 1 1/2 inches lower than a stock mount...this allso alighns the driveline with the transmission better...and lowers the center of gravity at the same time..if you have deleted all the emissions crap from behind your head then you will allso have enough room to stick your fist behind there...this gives you 3 inches lateral clearence from the master cylinder and brake lines...when im able to pop a pic up..ill do so so you can see what im talkin about...im allso running that same set up..and the gt28 is a great turbo for our ka's...i might sugest a mid cam..like the BC stage 2 264 cam...hope this helps ya some..good luck :chuckle:

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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So 2 hockey pucks? Like the sport, hockey? Huh, never would have thought. Thanks for the help guys.

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asoomal
Posts: 2374
Joined: Tue Feb 26, 2008 4:45 pm
Car: 2001 Subaru Impreza L 5MT (Daily)
1992 Nissan 240SX SE 5MT w/HICAS (Being restored)
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That's a terrible engine mount...

All the NVH will go through the bolt...

liquid_cool
Posts: 1700
Joined: Sat Jul 05, 2008 3:02 am
Car: 1990 Nissan 240SX KA24DE-T swap 8.6:1cr, duelsprings, ti retainers,supertech pistons, K1 H-beems balanced internals ect ect

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asoomal wrote:That's a terrible engine mount...

All the NVH will go through the bolt...
dont knock it till you try it sire!...the Hocky puck mount has been around for a long time..510 guys with ka swapps have been doing it for years!...it's proven effective. :yesnod

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

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I think you have brought up the hockey puck motor mount thing before and gotten grief about it. Fact of the matter is, it does work effectively with no ill effects. Regardless of how jank it sounds.

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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Regardless of how ridiculous it sounds I'm sure there has been success. I'm aware of how tough hockey pucks are. However, what would be a proper motor mount with the same effect? What about the NISMO motor mounts?

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zachattack_5491
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I think the Nismo mounts actually make the engine sit slightly higher than normal. Purely speculation, I think I remember reading that somewhere.

Have you seen/thought about using a brake booster delete like the one from Chase Bays? It might allow you to clear with real motor mounts.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

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The nismos do sit a little higher. I have them and actually an rather going to get stock mounts or do the hockey puck thing so my c west hood won't hit my valve cover. I don't think he will have a problem with the stock mounts though. You call enjuku yet, dirtbag?

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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Yes. The manifold will clear with a small turbo T25/T28. Now I know this isnt exactly the place to be discussing this and I dont want to start any arguments but what about a KA24DER? For what I am trying to achieve why not just go with a supercharger. I dont really want anything over 300HP. The only problems I am finding with that are issues with routing a FMIC and finding a freaking tune. Thoughts?

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

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The problem with superchargers, is that there are many varients of superchargers just like turbos., you could have anywhere between a 250hp supercharger to a 700hp supercharger. And then with the super charger model add to that, different size pulleys etc. its not a bad thing there is a variety, but there aren't enough people that run them for the tuning companies to create base tunes for. The other problem I see us for a car seeing boost that early the ignition timing would have to be heavily altered to prevent knock, which things like an safc cannot do. That leaves you with a stand alone or a piggyback that does not alter maf voltage to get the needed result. Is all that really worth the headache for only 300hp? that's your call.

Fastazz240
Posts: 189
Joined: Sun Apr 25, 2010 10:40 am
Car: 1995 Nissan 240SX
93 Nissan Vert
95 vHardbody 4X4

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since your not looking for anything above 300 supercharging is in fact the way to go, you can run 12lbs of boost with no inter cooling and net you about 250 -260 to the wheels, ohh and instant boost. Adamky on Kat.org has had his setup for a while chat with him about it. and in doing SC keeping ac will be cake. You can keep factory mounts cause the supercharger is on the same side as alternator. The Eatom M62 is fairly cheap and only thing that needs redone is a snout rebuild. Done alot of research since i will be doing this soon as well. as far as a tune go Nistune. Oh yea and adam gets 30 MPG haha little bit of food for though

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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So if I were to go sc I should go nistune...where do I get ahold of the nistune hardware/software? Lol. I'm a bit of a newb, sorry, but I was originally just going to let enthalpy take care of that for me...

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drewce
Posts: 81
Joined: Sun Aug 23, 2009 12:58 am

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Fastazz240 wrote:since your not looking for anything above 300 supercharging is in fact the way to go, you can run 12lbs of boost with no inter cooling and net you about 250 -260 to the wheels, ohh and instant boost. Adamky on Kat.org has had his setup for a while chat with him about it. and in doing SC keeping ac will be cake. You can keep factory mounts cause the supercharger is on the same side as alternator. The Eatom M62 is fairly cheap and only thing that needs redone is a snout rebuild. Done alot of research since i will be doing this soon as well. as far as a tune go Nistune. Oh yea and adam gets 30 MPG haha little bit of food for though
whaaaaaaat how is that possible how is he getting more mpg with a supercharger :S

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moso
Posts: 801
Joined: Sat Jul 04, 2009 5:14 pm
Car: 89 240sx ka24de 5spd
90 240sx ka24de RIP

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Dirtbag wrote:So if I were to go sc I should go nistune...where do I get ahold of the nistune hardware/software? Lol. I'm a bit of a newb, sorry, but I was originally just going to let enthalpy take care of that for me...
Check out megasquirt. Im just finishing an install up on a 22re and its surprisingly easy. first standalone install. wired myself and base tuned myself using nothing more than my build sheet, the install guide, and a little help from the guys at diyautotune.com . I picked up a copy of TunerStudioMS as well and the thing damn near tunes itself.

Oh and its MAP based so no need for that stupid mafs!!

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asoomal
Posts: 2374
Joined: Tue Feb 26, 2008 4:45 pm
Car: 2001 Subaru Impreza L 5MT (Daily)
1992 Nissan 240SX SE 5MT w/HICAS (Being restored)
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drewce wrote:
Fastazz240 wrote:since your not looking for anything above 300 supercharging is in fact the way to go, you can run 12lbs of boost with no inter cooling and net you about 250 -260 to the wheels, ohh and instant boost. Adamky on Kat.org has had his setup for a while chat with him about it. and in doing SC keeping ac will be cake. You can keep factory mounts cause the supercharger is on the same side as alternator. The Eatom M62 is fairly cheap and only thing that needs redone is a snout rebuild. Done alot of research since i will be doing this soon as well. as far as a tune go Nistune. Oh yea and adam gets 30 MPG haha little bit of food for though
whaaaaaaat how is that possible how is he getting more mpg with a supercharger :S
More available torque.

Fastazz240
Posts: 189
Joined: Sun Apr 25, 2010 10:40 am
Car: 1995 Nissan 240SX
93 Nissan Vert
95 vHardbody 4X4

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hey if you dont believe me ask him yourself go to KAT.org and look up Supercharged KA he wrote the sticky on ka supercharging how to send him a message

liquid_cool
Posts: 1700
Joined: Sat Jul 05, 2008 3:02 am
Car: 1990 Nissan 240SX KA24DE-T swap 8.6:1cr, duelsprings, ti retainers,supertech pistons, K1 H-beems balanced internals ect ect

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i hope these pics post corectly..anyways..this is my ka-t build as of yesterday..enjoy!

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just a teaser but i hope they give you idea's for youe build..

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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Alright. I researched supercharging and with it looking like MORE of a pain in the a** I decided to go top mount Garrett Ball Bearing T3/T4 (because I got it for cheap). Boost Designs exhaust manifold. Also replaced the bearings with some Clevite bearings and bored it .20 over with some Eagle rods and pistons (9.0:1), installed a Tial 38mm wastegate, and I remote mounted the battery. Enthalpy tuned at 309 HP (dynoed) and I am running Apexi SAFC II, Blitz boost controler/speed meter, and blitz turbo timer. Now my issue is BOV. I don't know how or where to mount it. After that, don't know if I should reciculate or not. What needs to be done here? It is a HKS SSQV if that matters.

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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Also, this turbo application is my first. Great way to start huh? Anyway where do I lead the recirculation line if I need to go that route?

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

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You mount it to the intake, before the turbo but after the maf.

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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I guess I should state for clarification it is set up Intake->MAFS->Turbo->TB.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

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If you have the maf hooked up straight to the turbo you will get some very inconstant maf voltages because of the turbulence. Also you won't be able to mount the wastegate vent to the cold air intake after the maf. I would recommend changing the way your intake is setup. (keep in mind, you want 6” or so of straight pipe before and after the maf if possible)

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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I was just referencing the air flow to the throttle body. There is a cold air extension before the MAF, 6-8" between the MAF and turbo, then the intercooler into the TB.

compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

Well then mount the wastegate to the hot pipe and then run the vent to the intake after the maf. Done.

Dirtbag
Posts: 63
Joined: Mon Sep 19, 2011 7:49 am
Car: 1998 Nissan 240SX SE
1996 Nissan 240SX Base
Location: Tampa, FL

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The other problem. I cant find any information on what to do with that nipple on top of the valve cover. In looking at everyone else's builds I have only seen 4 things done to it. 1) Blocked off, and in some cases isn't even there. 2) Has an air element on it. 3) One I saw had there re-circulation fitting from the BOV going to it. and 4) the "stock" vacuum line run back to the intake pipe after the MAF.


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