SR20DET S15 into a s13 coupe?

[Renegade_89]

HI

I have an 89 coupe and want to put the Sr20det "s15" into it. The 2 main reasons i want to do this swap is 1. More horsepower than the s13 red or black top stock, and 2. it has a 6 SPEED.

I searched and didn't find any treads about anybody doing this, has nobody done this or am i just blind?

so the thing is i think i found exactly what i am looking for, i'm just not sure what else i will need for the swap.

I will get with the engine

Complete Motor

•Throttle Body

•Transmission 6Spd RWD Close Ratio(with Clutch Assembled to the engine)

•Wiring Harness

•All required Cables

•ECU

•Exhaust Manifold

•Alternator

•Starter

•Power Steering Pump

•Power Steering High pressure Line

•Wastegate solenoid Controller

•Wastegate actuator

•A/C

•Fuel Rail

•Injectors

•Canistor

•Turbo

•Ignitor Chip, MAF, Air Cooler.

I'll still need to find a lsd, and change the transmission mounts; shouldn't be too hard.

JazzPro sais "The driveshaft has different mounting location from the S14 / S15 chassis. Custom work must be done."

So my questions are:

Exactly what mods do i have to do to get the drive shaft to work, or do i need to havea custom one built?

I know i'm missing stuff, what else do I need? I'll keep the drivetrain close to stock for now.

[RPS13.5]

I am not sure that what else do you need for the swap...But for the drive shaft we did this for a customer that we move the drive shaft mounting core, and relocated where it should be for the S15 drive shaft. By doing this you need a drill & drilling took and a welder.

It was easy, we did is drill out the factory spot weld from the drive shaft mounting core off the chassis. Then do a little bend to fit & relocate where it should be for the S15 Drive Shaft, and spot weld it half inch a part just to make it stiffer.

[redtop91]

The 6 speed transmission will NOT bolt into an S13.

[infamousbz]

The 6 speed transmission will NOT bolt into an S13.

Why not? It bolted up to mine. You also need a dakota digital sgi5 unit, i'm still working on wiring mine up. I got the custom aluminum DS from DSS. If you get a FMIC get one for the s14/s15, cuz the throttle bodies are different. A DOHC gauge cluster is also needed. I think that is the only extra stuff needed.

[redtop91]

My bolt in I mean absolutely no modification to the car.

[jdm_master_X]

well first of all the six speed sucks.

secondly, we all know S13s have better head...hahaaha. seriously!

[infamousbz]

lol all this is hearsay I tell you. How many people actually own a 6 speed and can say they suck? I haven't had mine long enough to know, but I'll tell you when it breaks. That extra gear is nice for my long road trips from sin city to the good ole mormon state of utah. ha.

[Poor_S13_Driver]

How many people actually own a 6-speed? Sure people can say they suck or have "friends" that say they suck but they personally have no experience. I myself have no experience with it for all i know it could grenade at the thought of 300HP through it, but i just see too many people dog it without any PERSONAL experience. Good luck with everything Renegade_89 let us know on your decision

[Renegade_89]

Thanks that info is really helpful, I think i'll do the s15 if I can just wait long enough to be able to afford it I might get impatient and buy what i can afford now "s14" I REEEEEALLY want a 6 speed though.

i think the 6 speed can handle 300hp. Do you think that Nissan would build a drivetrain that runs stock 250hp and would blow if sombody bolted on an extra 50hp? I'd hope not

scince i posted last i did find a thread it went a little like "I met a guy that put the s15 and 6 speed in his s13 and is running 350hp" hope that is true, I know it's hearsay but it sounded good to me. What do you guys think?

[infamousbz]

i think the swap will run you approximately 1000+ more to do than an s14 swap. 500 more for the s15 motor, 400 for the driveshaft, I got my diff for 300 and the abs speed converter is about 100. It all depends on how much you can get the stuff for. i paid 500+ for my DS because I wasn't on NICO enough and didn't know about the sponsors. Give or take a few hundred bucks and that is what you will be spending on top of the necessities. Good luck with everything.

[Renegade_89]

That isn't too bad!! You convinced me I'm doin' it, looks like rent money is gonna be 240 money this month, when its done i'll have pics.

[infamousbz]

SWEEEEET! Good luck with everything. Keep us updated.

[CrypticScorpio]

after your done tell me what pains you had to deal with, ive been wanting to put an S15 in my S13 for a while but i need to get the stock S13 rust free first

[itsnever2fast]

6 speed transmission bolts up FINE to a s13, driveshaftshop makes a one peice 6 speed into s13 driveshaft as well, you need to do something for a speed sensor signal tho, there is no gear for a VSS inside the transmission, even tho there is a place for it. one solution is a s15 diff, another is abs 300zx rear diff, use the abs signal and a dakota digital box. I HAVE a 6 speed. not yet installed. and they handle 350hp fine, its when you get up to 400 that you need to be carefull

[Morph]

well first of all the six speed sucks.

secondly, we all know S13s have better head...hahaaha. seriously!

I disagree on the myth of the 6th speed. Maybe if your a MaDD TyTE JDM DriFTO then ya might be weaker b/c you pound the crap out of the transmission. For everyone else i think that the S15 6speed is just fine.

[itsnever2fast]

the center bearing housing is the weak point on the six speed trannies, they dont just POP when you put to much power through them, they just dont last long.

[r1jlewis]

i had 360whp on my 6speed and never gave me a problem at all! Maybe around 500 you might have problems. Just my 2cents.. 6th gear is great for highway that's for sure.

[Morph]

i had 360whp on my 6speed and never gave me a problem at all! Maybe around 500 you might have problems. Just my 2cents.. 6th gear is great for highway that's for sure.

Ya, thats why im dieing to get a 6th gear. Im on the hwy most of the time and turning 3-3.5k down the road blows.

Hey itsnever2fast got any tips for feel like doing a write up on things to look out for when swapping over the 6speed trans. I mean besides the obvious, like new drive shaft, diff, etc. If not its cool, i'm hoping to get a 6speed trans in the next few months and do a write up then.

[itsnever2fast]

the one piece s15 6 speed into S13 driveshaft is $349 through driveshaftshop.i still need to do a little research but i am pretty sure an s15 trans can bolt up to an s13 motor with an s15 flywheel... the clutch is the same, flywheel is different. i know the input shaft is further in the trans on the 6speed..ideally, buy an s13 motor, upgrade the turbo, drop in some cams, then swap in an s15 trans, you will need an s15 flywheel too. good S15 motorswaps are overpriced IMO ($4,000-4,500). if you dont want to go crazy built in the future, get the s15 swap. but an s13 motor is cheaper to build. the head flows better too when you start to modify.


Modified by itsnever2fast at 6:11 AM 6/27/2007

[RPS13.5]

I tried the 6 speed already, what I felt was the gear ratio is really short, "shift a lot", but good for taking off the track. the 6th gear feels like 5th gear on the freeway. Some how that crusing at 70-75 mph on the freeway with the 6 speed is around 3100 rpm and the 5 speed is around 3200-3300 rpm. Which is not a big difference, so it helps saves gas, but who saves gas anyway if its an SR.... it aint honda!

[itsnever2fast]

s15 final drive ratio is like 3.2 LOL, s13 is like 3.90 something thats why