ka24de w/ sr tranny? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

93nismo · 07-30-2009, 11:43 PM

yes ive serched, no i havent found anything. my question is this. can an sr transmission bolt up to a ka24de? im just curious. i was lookin at a thread about trannys and the thought kinda just poped into my head. if it can be done, has anybody here done it? and if you have could you tell us how you did it? meaning any fab work at all, please?

remember, im just curious. and i did serch. just wanna know if its been done and how hard it is if it is at all.

thanks everyone
-Mikey

Souljahzs13 · 07-31-2009, 12:25 AM

Yes, it has been done. The trannys are alike, the only difference is the bell housing. just switch over the KA one and your're good to go. Theres nothing else to it, no cutting or welding. Cool thing is that the SR tranny doesn't use an overdrive gear

92sxMike · 07-31-2009, 06:04 AM

I've been told that the bell housings are different but the person didn't know if the sr20 trans would bolt up to the ka block, So now that I have discovered this I'll be tracking down an sr20det trans. Also do you know if the rear end out of an sr20det is interchangable with the ka24de? If so are there any other mods you have to do in order for it to work?

angelom88 · 07-31-2009, 12:36 PM

Hey passed by and saw it would be a good time 2 ask really quick wat would be a better fit when looking fore more hp and top speed, would a sr tranny do fine or is a z32 tranny the way 2 go I'm just looking for a little knowledge while u guyys are on the subject

projectRDM · 07-31-2009, 01:00 PM

Quote:

Originally Posted by 93nismo

yes ive serched, no i havent found anything. my question is this. can an sr transmission bolt up to a ka24de? im just curious. i was lookin at a thread about trannys and the thought kinda just poped into my head. if it can be done, has anybody here done it? and if you have could you tell us how you did it? meaning any fab work at all, please?

remember, im just curious. and i did serch. just wanna know if its been done and how hard it is if it is at all.

thanks everyone
-Mikey

You did not search. There is no POSSIBLE way you did if you're asking this.

The SR and KA transmissions are the same except for the bellhousing. SAME. You cannot bolt them up unless the bellhousing matches the block. We've said this since 1989.

93nismo · 07-31-2009, 03:35 PM

i did serch as a matter of fact

and now everybody looking wont have to serch hard. title explains everything dosent it?

thanks for the replies everybody

Seikenman · 07-31-2009, 08:45 PM

Quote:

Originally Posted by Souljahzs13

Cool thing is that the SR tranny doesn't use an overdrive gear

That's not true at all. Where do people come up with this misinformation?

93nismo · 07-31-2009, 09:15 PM

there buttholes:P

so just to clerify, while were on the subject. i could take an s15 sr tranny(i beleve its a 6-speed, correct me if im worng) and put it on my ka? cuz that seems pretty badass to me.

Seikenman · 07-31-2009, 10:50 PM

Quote:

Originally Posted by 93nismo

there buttholes:P

so just to clerify, while were on the subject. i could take an s15 sr tranny(i beleve its a 6-speed, correct me if im worng) and put it on my ka? cuz that seems pretty badass to me.

I'm not sure about that one. I don't think you can swap bell housings on the 6 speed. The 5 speeds are for the most part the same transmission(different ratios on some but basically the same trans). The s15 Silvias did not have a speed sensor in the transmission either. So you would not have any speedometer signal if even if you could use it.

ho0dlumka13 · 07-31-2009, 11:29 PM

Why don't u just go z32?

projectRDM · 08-01-2009, 07:23 AM

Quote:

Originally Posted by 93nismo

there buttholes:P

so just to clerify, while were on the subject. i could take an s15 sr tranny(i beleve its a 6-speed, correct me if im worng) and put it on my ka? cuz that seems pretty badass to me.

No. You're still not searching.

The S15 6speed is a completely different transmission. It's nothing like the SR/KA/CA/VG30 5spd, and therefore doesn't swap over with just the matching bellhousing.

Seriously, I've seen and discussed this on forums for over a decade, how are you not finding this information?

blueshark123 · 08-01-2009, 07:30 AM

why the fuck u want a sr tranny over a ka one when they r the same?

redclaw05 · 08-01-2009, 10:25 AM

sr has shorter gears.

ZenkiKid · 08-01-2009, 10:36 AM

dude did you read? its been covered tons of times that its the same as the ka tranny.

Souljahzs13 · 08-01-2009, 02:02 PM

Quote:

Originally Posted by Souljahzs13

Cool thing is that the SR tranny doesn't use an overdrive gear

Quote:

Originally Posted by Seikenman

That's not true at all. Where do people come up with this misinformation?

The KA's 5th gear is a bit taller than the SR's 5th, it turns less RPMs with 5th gear given the same speed. By changing that gear ratio, the KA's gear will allow the engine to turn slower given the same road speed. Acting like a OD giving a slightly better MPG

projectRDM · 08-01-2009, 02:11 PM

Quote:

Originally Posted by Souljahzs13

The KA's 5th gear is a bit taller than the SR's 5th, it turns less RPMs with 5th gear given the same speed. By changing that gear ratio, the KA's gear will allow the engine to turn slower given the same road speed. Acting like a OD giving a slightly better MPG

.759 vs. .838. Not a huge difference.

93nismo · 08-02-2009, 11:31 AM

i asked in here to get answers because people respond. theres no need for me to search again if you responding in here is there? is it really hurting anybody to post in a thread thats been started already? i can understand why some could be mad that i made the thread. but i really dident find an answer when i serched. theres no need to get upset.

and i asked about the 6speed because i was curious. i dont need a tranny. just wondered. thanks to the people that helped

brewster240 · 08-02-2009, 11:36 AM

Quote:

Originally Posted by Souljahzs13

The KA's 5th gear is a bit taller than the SR's 5th, it turns less RPMs with 5th gear given the same speed. By changing that gear ratio, the KA's gear will allow the engine to turn slower given the same road speed. Acting like a OD giving a slightly better MPG

its still overdrive, if it wasnt it would be 1:1, and i bet you could drive a car with each trans back to back and not be able to tell the difference.

this thread is like a wayback machine, i feel like i stepped into 1999.

Seikenman · 08-02-2009, 02:49 PM

Ok. Here we go.

The TURBO, I repeat, TURBO, 91 -98 s13 silvia/180sx have the same gears as a US 240sx. The 5th gear is .759 on the K's/turbo.

However. If you have your transmission from a non-turbo, Q's J's or type s, you get a .838 5th gear, as well as a 4.111 final with the s13(if you have the car or got your vlsd from one of these cars) Turbo cars and s14 and s15 non turbo cars have a 4.083 final.

If you got your trans from a ca18det your 5th will be a .838(same as a sr20de s13 and s14 and s15). The final drive is also 4.363(makes a KA and stock sr or ca nice and peppy i might add)

Non turbo ca18s have different 1st, 2nd, and 3rd gears with a .821 5th, but have a 4.375 final.

07-30-2009, 11:43 PM	#1
93nismo Zilvia Addict Join Date: Dec 2008 Location: sycamore il Posts: 765 Trader Rating: (14) Feedback Score: 14 reviews	ka24de w/ sr tranny? yes ive serched, no i havent found anything. my question is this. can an sr transmission bolt up to a ka24de? im just curious. i was lookin at a thread about trannys and the thought kinda just poped into my head. if it can be done, has anybody here done it? and if you have could you tell us how you did it? meaning any fab work at all, please? remember, im just curious. and i did serch. just wanna know if its been done and how hard it is if it is at all. thanks everyone -Mikey

07-31-2009, 06:04 AM	#3
92sxMike Leaky Injector Join Date: Jul 2009 Location: Youngstown, Ohio Age: 36 Posts: 61 Trader Rating: (0) Feedback Score: 0 reviews	Thanks. I've been told that the bell housings are different but the person didn't know if the sr20 trans would bolt up to the ka block, So now that I have discovered this I'll be tracking down an sr20det trans. Also do you know if the rear end out of an sr20det is interchangable with the ka24de? If so are there any other mods you have to do in order for it to work?

08-01-2009, 10:25 AM	#13
redclaw05 Zilvia Member Join Date: Aug 2006 Location: Dallas, TX Age: 35 Posts: 180 Trader Rating: (0) Feedback Score: 0 reviews	sr has shorter gears. __________________ 1995 S14 NonSunroof.

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07-31-2009, 12:25 AM	#2
Souljahzs13 Zilvia Addict Join Date: Nov 2008 Location: five6deuce Posts: 960 Trader Rating: (66) Feedback Score: 66 reviews	Yes, it has been done. The trannys are alike, the only difference is the bell housing. just switch over the KA one and your're good to go. Theres nothing else to it, no cutting or welding. Cool thing is that the SR tranny doesn't use an overdrive gear

07-31-2009, 12:36 PM	#4
angelom88 Banned from the Marketplace Join Date: Mar 2009 Location: corona queens ny Posts: 81 Trader Rating: (-1) Feedback Score: -1 reviews	Hey passed by and saw it would be a good time 2 ask really quick wat would be a better fit when looking fore more hp and top speed, would a sr tranny do fine or is a z32 tranny the way 2 go I'm just looking for a little knowledge while u guyys are on the subject

07-31-2009, 03:35 PM	#6
93nismo Zilvia Addict Join Date: Dec 2008 Location: sycamore il Posts: 765 Trader Rating: (14) Feedback Score: 14 reviews	i did serch as a matter of fact and now everybody looking wont have to serch hard. title explains everything dosent it? thanks for the replies everybody

07-31-2009, 09:15 PM	#8
93nismo Zilvia Addict Join Date: Dec 2008 Location: sycamore il Posts: 765 Trader Rating: (14) Feedback Score: 14 reviews	there buttholes:P so just to clerify, while were on the subject. i could take an s15 sr tranny(i beleve its a 6-speed, correct me if im worng) and put it on my ka? cuz that seems pretty badass to me.

07-31-2009, 11:29 PM	#10
ho0dlumka13 Zilvia Member Join Date: Jul 2008 Location: santa ana/ las vegas Posts: 212 Trader Rating: (3) Feedback Score: 3 reviews	Why don't u just go z32?

08-01-2009, 07:30 AM	#12
blueshark123 Post Whore! Join Date: Apr 2006 Location: North Jersey Posts: 5,481 Trader Rating: (55) Feedback Score: 55 reviews	why the fuck u want a sr tranny over a ka one when they r the same?

08-01-2009, 10:36 AM	#14
ZenkiKid Post Whore! Join Date: Nov 2005 Location: Nowhere Age: 31 Posts: 3,248 Trader Rating: (9) Feedback Score: 9 reviews	dude did you read? its been covered tons of times that its the same as the ka tranny.

08-02-2009, 11:31 AM	#17
93nismo Zilvia Addict Join Date: Dec 2008 Location: sycamore il Posts: 765 Trader Rating: (14) Feedback Score: 14 reviews	i asked in here to get answers because people respond. theres no need for me to search again if you responding in here is there? is it really hurting anybody to post in a thread thats been started already? i can understand why some could be mad that i made the thread. but i really dident find an answer when i serched. theres no need to get upset. and i asked about the 6speed because i was curious. i dont need a tranny. just wondered. thanks to the people that helped

08-02-2009, 02:49 PM	#19
Seikenman Join Date: Dec 2005 Location: usa Posts: 46 Trader Rating: (6) Feedback Score: 6 reviews	Ok. Here we go. The TURBO, I repeat, TURBO, 91 -98 s13 silvia/180sx have the same gears as a US 240sx. The 5th gear is .759 on the K's/turbo. However. If you have your transmission from a non-turbo, Q's J's or type s, you get a .838 5th gear, as well as a 4.111 final with the s13(if you have the car or got your vlsd from one of these cars) Turbo cars and s14 and s15 non turbo cars have a 4.083 final. If you got your trans from a ca18det your 5th will be a .838(same as a sr20de s13 and s14 and s15). The final drive is also 4.363(makes a KA and stock sr or ca nice and peppy i might add) Non turbo ca18s have different 1st, 2nd, and 3rd gears with a .821 5th, but have a 4.375 final.