s13 sr20det or ka24de turb0-charged

tRu2nissan4life · 12-22-2001, 12:12 PM

i have a big problem. i just brought a 1990 240sx from my parents for a 1000 dollors. the car is in pretty good shape and the engine had about 150,000 miles on it. i was wondering if i should replace the ka24de of another car and turbo-charge it or but a s13 sr20det engine in from japan.

i wanted to know what is the max horsepower i will get out of it if i'd renforced the engine and how much horsepower will i get out of a
sr20det engine. also how much would each one cost.

if anyone has any info on this
thanks for helping

:o

96SEChick · 12-24-2001, 11:30 AM

You could do either. But with 150000 miles on it, I wouldn't feel real comfortable putting a turbo kit on the KA. The KA engine has a cast iron block with somewhat thin cylinder walls, and people who have put turbo kits on their cars have their "innerds" forged to be able to hand the boost w/o blowing the walls or pistons. It would probably be worth your while to do the SR swap--more power, and hopefully better reliabity and ability to further modify the engine. If your car were a 1991 or newer, I would consider installing a turbo kit, since they are dual-overhead cam. The 1989 & 1990 KA's were single-overhead cam. Both engines can take quite a beating, but it may cost you less to do the SR swap than to rebuild your KA24E and then install the turbos.

Just my .02 though

Morpheus XIII · 12-27-2001, 06:22 AM

Oh God, that undying question. Thanks for taking the words out of my mouth and saving me another white hair, 96SEChick. :flash:

sr20det_nismo · 09-30-2002, 03:10 PM

Sorry, but you can't put an SR20DET into a 1990 Nissan 240SX. 1991 is the first year that you can swap in that engine. I know it sucks, but look at the engine out of a 180 SX because you can't drop in the SR20. I figured I would tell you before you made the mistake of buying an SR20DET and finding out it won't fit! Get the 180SX engine because it will fit.

Karezza666 · 10-03-2002, 03:21 PM

Quote:

sr20det_nismo Sorry, but you can't put an SR20DET into a 1990 Nissan 240SX. 1991 is the first year that you can swap in that engine. I know it sucks, but look at the engine out of a 180 SX because you can't drop in the SR20. I figured I would tell you before you made the mistake of buying an SR20DET and finding out it won't fit! Get the 180SX engine because it will fit.

Yes, you can put a SR20DET into a 90, i have an 89 hatch and this winter either a SR20DET, or a RB25DET is going into my car. i already have everything ripped out just waiting on the engine

natedogs911 · 10-04-2002, 04:46 AM

umm yeah read a few posts and then u should probly warn those guys with s13 silvia swaps in their cars cause they might not kno they can't do that ;P

i'm doing mine soon

SR20DETpower · 10-13-2002, 09:32 AM

justa bout any engine can go into any car if yo want.....

Sr20det's go fine into 89-91 240's...... I've heard that the power steering lines need to be reworked and thats about the only added work versus swapping it into a 91-94

89-91 Jspec cars came with the Ca18det so if you wanted to swap that engine I would get the earlier 240's because it would be more bolt in(you probably wouldn't have to mess with the power steering lines, but I don't know much about Ca18 swaps)

comradegiant · 10-25-2002, 05:24 PM

If you can afford the sr20, that is the best course of action. The KA24 has this tendancy to have been designed for use in trucks. As such, it is not a very fun engine in a sport coupe. Even my burnt, old CA20 has been found to be more fun than the KA24. It may be on the expensive side because of custom mounting and parts, but the sr20 will give you a great driving experience.
BTW, for those of you who think that an sr20 wouldn't be possible in a 90 240sx, I have been told that it would be possible, and not too costly (ie: under 10k), to stick anything from an S-15 sr20det to an rb26dett in, of all things, my 84 200sx.

turbo2nr · 10-31-2002, 11:35 AM

i would go wit da sr20det cause ur ka has over 150,000 miles and u would have to reinforce the engine to take mor then 10psi of boost
wit the sr motor it can take 14.7psi safely the only mods u should make is a upgraded furl pump and a boost controller

Silvia2NR · 11-15-2002, 07:53 AM

Quote:

posted by sr20det_nismo
Sorry, but you can't put an SR20DET into a 1990 Nissan 240SX. 1991 is the first year that you can swap in that engine.... look at the engine out of a 180 SX because you can't drop in the SR20... mistake of buying an SR20DET and finding out it won't fit!

according to www.phase2motortrend.com:

S13/S14 SR20DET:
Direct drop in for USDM 1989-98 240SX's.
For 89-90 240SX
-Gauge cluster must be upgraded to 91-93 S13 240SX or use the cluster off Jspec Silvia/180SX's because the tachometer off the 89-90 240SX are not compatible with the SR swap.
-Power steering must be customed to fit the SR20DET or change to 91-93 240SX power steering system.
-Custom A/C bracket is needed to use the factory compressor on the SR20 or custom hardlines to fit the SR compressor.
-The drive shaft for 89-90 S13 will be alittle short but can still be used for the SR swap.

NightXCZ77 · 11-30-2002, 05:29 AM

Hey, you want a real swap (not doggin the SR20 or nothing) but go with the RB engine (RB20DET or RB25DET out of a Skyline).

I did the swap early in the year and I must say I love the results. My car runs a 12 at 114 mph in the quarter now and I am running stock boost (7psi) The RB25DET (which I have) can handle far more boost than the SR20DET. I have seen it pushed to 25 psi on stock internals with no damage.

The RB20DET clips are a bit less expensive than the SR20DET clips. I sell them for $2250. But for they are two more cylinders than the SR20DET which allows for far more hp potential.

Now, the RB swap is as easy as the SR swap despite what others say. If you want a picture of it, go to one of my first post that I ever did.

All you gotta do is take your old engine out and put the new one in....switch tranny mounts backwards and add a spacer. Cut hood reinforcement (which isn't visible from outside) and put power fans on it instead of the engine fan.

If anyone has any questions about the swap, please email me.

Night

turbo2nr · 12-02-2002, 01:49 PM

Question bout the rb25det,

is it a awd set up or rwd?
if its a awd is it hard 2 convert into a rwd?
also do u have 2 make any major mods 2 make dis motor fit?
wat bot the cpu? do u have 2 rewire the whole car?
also can you get a front clip of a rb25det?
and 1 more thing hows the weight distrubution?
i heard it is like 70\30????

tnaks 4 ur help

NightXCZ77 · 12-02-2002, 03:33 PM

SR20DET guy -

The RB20DET came in RWD and AWD set ups. The RB25DET came in RWD, and the RB26DETT came in AWD. AWD isn't hard to convert to RWD, it simply takes disconnecting wires and/or rods. There are no major mods to make the 20 and 25 fit. The 26 requires a few mods because of the twin turbo setup. As far as wiring goes, all you have to do is keep your stock 240 interior harness - biggest piece of advice I can give. Then you run the separate skyline harness which only runs the engine. I can get clips of the RB25DET and I have one coming in soon. Weight distribution is great. It is about 55 rear, 45 front. Any more questions, let me know!

Night

turbo2nr · 12-02-2002, 06:41 PM

ur da man !!
nightxcz tanks alot!!!!!
i wana go for the rb25det!
jus some more questions , will a repatible shop be able to do this or do you have 2 get specilzed peeps for this job, i live in the nyc area so if u know any shops let me know and how much would a swap like this cause with the motor installed into a 240sx 95+ shape, i got a quote for a sr20det red top with 30k installed into a 95+240 for 5g!

your help is very appreciated

p.s. i might have 2 change my forum name 2 rb25det2nr!haha!lolz

NightXCZ77 · 12-02-2002, 11:04 PM

Any shop can do the swap, it's not too hard. I had a quote for mine done at $1200, but I chose to do it myself. It isn't too hard of a swap, I can help you through it if you choose to save some money lol. I know a guy in the NYC area....lives in Buffalo, that may be able to give you some help with it. I sell the clips for $3000 if you want one. Then adding driveline and $1200 for a shop, you would be below $5k....IM me if you like.....NightXCZ77

Night

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