KA-T turbo kit!?

General discussion forum about the 240sx, and a great place to introduce yourself to the board!
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Gabes13
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You should really have an intercooler for any turbo application. Like everyone has said, t25's are tiny. Too tiny for the Ka.

Is it just me, or do ka-ts seem to have small power bands?


skuurtin s13
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im not looking for alot of power im not going to need a huge turbo so i think for what im looking for a t25 is what i need im just wondering what i need besides the following without adding stuff just to get more power

turbo manifolddownpipe w/o2

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Gabes13
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skuurtin s13 wrote:turbo manifolddownpipe w/o2
intercoolerinjectorssome kind of tuning

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DMan II-40
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No a t25 is not to "tiny". If you want 400hp then yes it is too small. But no it isn't to small for mild power goals.

No you do not need an intercooler with a t25 set up. I would recomend atleast getting a SR20 OEM side mount atleast as they are inexpensive, but you dont NEED one.

No KA-Ts dont have small power bands....I personally believe they s*** on SR20s, but this isn't a KAT vs SR thread.
skuurtin s13 wrote:im not looking for alot of power im not going to need a huge turbo so i think for what im looking for a t25 is what i need im just wondering what i need besides the following without adding stuff just to get more power

turbo manifolddownpipe w/o2
Go read and research more in KA-T. If you don't know exactly what you need to have no business turboing an NA engine. That is why the KA gets a bad rap for blowing. Too many people turbo without the knowledge.

Honestly. Don't ask for KA-T knowledge in 240gen as (no offence) most people in here don't know what they are talking about. Go to the KA-T section, all around better ofr this kind of info.

I don't believe anything I read until I read it from multiple people and trusted resources. People like WD, 480sx (rip), and others in KA-T know what they are talking about.

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PyroTecK
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ur gonna have to do alot more research if ur planning on building ur own kit. definatly jgs is a good starting point for a kit. i was gonna go w/ that before i picked up my ams setup.

i agree w/ everyone else that the t25 is too small for the ka. itll spool quick but itll die out on the top end. 7psi or not its small. if ur still want to go w/ a t25 then by all means do it, should be an alright starting point but plan on having/wanting to upgrade later on.

idk about full ebay kits but ive had alot of discussions w/ people about the ebay ka-t manifolds w/ the conclusion that, for the price, theyre alright. from what i know the manifolds tend to crack, but the ones that crack are the ones that are set up for external wastegate. so run ur t25 w/ the internal wastegate and fabricate a way to brace the manifold. cheap and if it breaks just get another one.

above all else, is the tune. thats the single most important part if u dont want to blow ur motor. skimp on the tune and u can expect something to fail at the worst possible time. now this doesnt mean u have to go w/ the most expensive thing u can get ur hands on, just the most reliable.

everything else on the setup is just w/e. keep in mind that a small turbo at 7psi ull want a smaller ic. id go w/ a fmic though since the smic will prob heatsoak. ive met people running t25 setups w/ smic's before w/o problems but its better to overbuild i think.

go to ka-t.org theres alot of info there and a section that shows what kinda builds u can do and what to expect of them for however much money.

GTS
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If your compression is good and your engine is healthy, then KA-T is just fine.

Have a look at: zer...-aero

This was a very RELIABLE setup with modest power.

Most will argue that you can get more power with the amount of money spent on the Greddy setup, but the reliability of the Greddy setup is second to none.

Also, with what others have said - a T28/28 might be a bit too small for the KA. T3/04 setups are just perfect. If tuned properly, you won't even notice the lag.

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DMan II-40
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I admit T3/T4 is hands down the best turbo option.

The reason I am going with a T25 is it requires much less fabrication, and I have no experience with welding. I also want a stock apperience and if I was to go T3/T4 I would do a top mount log manifold...and that doesnt look stock.

The T25 will also serve it puropose for what i need so no reason to go larger. It all depends on what YOU are looking for in your set up.

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Gabes13
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DMan II-40 wrote: It all depends on what YOU are looking for in your set up.
Best damn quote in this thread.
GTS wrote:Most will argue that you can get more power with the amount of money spent on the Greddy setup, but the reliability of the Greddy setup is second to none.
Greddy kit will have boost spike issues with modded downpipe.

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Lonismos14
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To all of you guys downing the greddy kit. How many of you actually have or had that kit, I have it and i have none of the said problems you guys are talkin bout.

To me the only thing that sucks is the kit is expensive. And it doesnt come with an intercooler kit.

And it doesnt come with a tune. It comes with an e manage. Every motor is different, if you depend on someone else to tune your car and they have never seen your car your in trouble.

And as far as the fmu goes i wouldnt go over 7 psi with it and at 7 psi you really dont have to retard timing.

IM ALREADY KAT SO IM NOT GUESSING OR GOING OFF SOMEONE'S WORD.

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DMan II-40
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Lonismos14 wrote:To all of you guys downing the greddy kit. How many of you actually have or had that kit, I have it and i have none of the said problems you guys are talkin bout.

To me the only thing that sucks is the kit is expensive. And it doesnt come with an intercooler kit.

And it doesnt come with a tune. It comes with an e manage. Every motor is different, if you depend on someone else to tune your car and they have never seen your car your in trouble.

And as far as the fmu goes i wouldnt go over 7 psi with it and at 7 psi you really dont have to retard timing.

IM ALREADY KAT SO IM NOT GUESSING OR GOING OFF SOMEONE'S WORD.
That is the exact problem I have with it. It is WAY overpriced. Why not just research and piece together your own kit for way less. Again, it is all preference.

Yes, I wouldn't go over 7 or 8 psi on an FMU, no you don't have to retard the timing, but why not to be safe?

I am going to be using an FMU with water injection, so I can essentially increase my boost to MAYBE 10psi max (atleast that is the highest I would go if it is possible). All depends on what A/F numbers I am getting from my wide-band.

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Lonismos14
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Hey dude im not tryin to rag on you. I just dont want you to hurt your car if your even thinkin of going over 7 psi then you should seriously get a tune or at least an emanage they compensate for timing and all that. At the end of the day were on the same team. I just care for whats best for the car.

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24j0hn
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skuurtin s13 wrote:
all i would need was what you stated plus a fmic/intercooler and id be good? what about a tune?

Modified by skuurtin s13 at 1:55 PM 11/18/2009
tune prices vary... theres an i know a guy price, the online store price, and the dyno tune price... for me theres an i know a guy price, but its up to you for the tune... i think enthalpy sells used tunes for that setup....


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