My Old 240sx KA-T Project

Hey guys whats up.

Well no I don’t have my 240 anymore, :(, but that does’nt mean that I can’t post up all the info and pic’s I have. Who knows, maybe someone will want to use the same set up and get a good idea on what was envolved and needed :smiley: . So here we go.

This is what my turbo system consisted of, SSAutochrome t25/t28 manifold, SR T25 turbo, stock SR turbo elbow and downpipe, SR 370cc injector’s, S15 SMIC and piping, GReddy Type S bov, Megan Racing fuel pressure regulator, Walboro fuel pump, SAFC, Megan Racing oil pressure and boost/vacumm gauges.

Now as it turned out, just prior to installing everything I blew my old motor. There was something like 354K km’s on so it was to be expected and if I had’nt of been drifting on it, probabley would have kept going :stuck_out_tongue: . Anyway, I sourced a new motor and both it and the turbo stuff went in at the same time.

My buddy Justin preping my new motor. I found a 95 KA with only 180K km’s on it and it’s from an automatic so it has’nt been abused. Also synthetic oil changes every 4-5K km’s. I replaced the front crank seal, rear main seal and pilot bushing just to be safe.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/SS3.jpg

Rear shot of the turbo mounted to the manifold and that to the motor.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/SS4.jpg

A front/top shot where you can see where I slotted the manifold where it bolts to the motor. Doing this releaved ALL the stress on it and thus, helped to prevent any cracking or breaking as there is some room to flex.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/SS2.jpg

I wish I could remember all the exact fittings used here for the oil pressure feedline but I can’t, sorry :(. This line is where the oil comes from the motor to the turbo.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/OilPressureLine.jpg

Here’s the feed line where it screws in to the turbo. Again I just can’t remember the fitting size but it is a compression fitting with oil restrictor as well.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/MYKA-TPic5.jpg

The stainless steel feed line screwed in to the restrictor and that screwed to the compression fitting which was screwed in to the turbo.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/MYKA-TPic6.jpg

Due to how close the manifold was, I decided to wrap the metal brake lines in aluminum tape to help keep the temp’s down and deflect some heat.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/MyKA-TPic3.jpg

To start off with, I used an SMIC set up from a 180sx and it worked out ok. Here you can see where both the hot & cold pipes go down in to the wheel well. You need to widen the hole that is in the wheel well to accomidate two pipes instead of just the one that is there with the stock 240sx air box set up.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/SMIC_Hot_Cold_Pipe_Pic.jpg

Now because the kade motor’s throttle body area is angled differently then the CA engine, I modified a DOHC cold air intake pipe and adapted it to the smic rad cross over pipe, which then was attached to the throttle body.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/DOHCColdAirIntakeAdaptedForSMICUse.jpg

My first (and so far only) attempt at painting. I was going with a dark metalic purple concept for under the hood.
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/Valve_Cover_Pic_1.jpg

http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/Valve_Cover_Pic_2.jpg

Finally, the end result looked like this :smiley: .
http://i58.photobucket.com/albums/g277/sidewazegtst/240sx%20KA-T%20Project/Engine_Bay_Pic_3.jpg

Now with regards to the settings used on my SAFC to controll everything, here they are, at least what I had last recoreded. I know I did some more fine tuning but I don’t have that info anymore.

NE POINTS: 1000rpm, 2000rpm, 3000rpm, 3500rpm, 4000rpm, 4500rpm, 5000rpm and 6000rpm

THROTTLE POINT’S: Lo - 15%, Hi - 35%

FUEL CORRECTION FOR NE POINTS:
LO > From 1000rpm’s to 5000rpm’s -27%, 6000rpm’s -26%
HI > -15%, -13%, -10%, -8%, -5%, -4%, -3%, -2%

Decl:
THR% - 5.0%
NE1 - 1.9
NE2 - 3.5

All in all I was SUPER pleased with how everything turned out and at the stock 7psi, DAM, when I trommped on it she went sideways in 3rd gear :R . Throttle responce was amazing, boost came on around 3000rpm’s and just kept pulling right up to around 6350-6500 ish which was pretty crazy for a little T25 turbo. This set up VS a similar SR20det, there was no compairison as I smoked them! Both off the line and on the highway, it was great :smiley: .

Well thats about it and I hope that people starting out with a similar project will find this helpfull.

All the best and good luck.

Cheers :smiley:

hahaha cheers great project setup… alot of ppl are doing these t25 budget setups

how much did this cost u around?
and how long did it last you or still working great on the new owner?

^^^

Cost wise, well not all the much due to the sponsorship I have but if I had to total I’d say approximately $1500.00 to $1700.00 give or take a few bucks.

When I got rid of my 240 (for my Skyline) it was still kickn hard core and I actually met the new owner of it and he said he’s in love. He has a few more upgrades in mind, first and for most an fmic.

So it’s nice to know that my old car is being well looked after :smiley: .

looks nice. and the dark metallic purple look doesnt look that bad at all
wish i had the knowledge how to set-up a KA-T, i want one. and for $1500 - 1700 thats cheaper then getting a SR.

n/m
re-read ur first post and found the answer to my question

but heres another one
ne fab work need to fit the stk catback onto the turbo setup? would it be somewat close to a direct bolt on
cuz i’m planning to do it at home, so wanna know if i can drive the car away from my place to the shop for exhaust when is done…

thx

i cant believe i have never seen this thread? i love T2 KA’s! good job, nice and stock looking. u see a lot of hack job KA-T’s out there.

^^^

Thanks dude, I was rather impressed with how she turned out too. It’s actually a shame that people do those “hack” jobs b/c with a little time, effort and patients you’d be amazed at what can be accomplished.

I still think of this car but it’s a REAL shame how she ended up. This car ran mint, everything worked perfectly and outside minor body work, new paint job and continuing tlc, I have no doubts at all the car would still be great today.

what happened to it?

^^^^

Lets just say the new owners (yeah there was a couple) didn’t take the best of care and now she’s parked and not going anywhere, anytime soon :(.

tranny install – courtesy of yourstruley and Hector…

fun times