LSX Subaru WRX S476r/Stock48 Cam/Dominator/E85 Build
10-17-2014, 11:40 PM
#24
I'll never fully agree with this. I don't care how much faster you can be with an automatic. A 6spd can be built to hold all the power he will throw at it and be way more fun to drive. I'm biased though and would never put an auto in a car unless I was getting groceries or chasing time slips.
Last edited by oscs; 10-17-2014 at 11:51 PM.
10-18-2014, 01:52 AM
#25
Staging Lane
Thread Starter
Got the car washed up and ready for the swap.
Here's a few photos of the 350z rear diff and axles.
The transmission decision is a tough one no doubt about it. I am really struggling to decide. Here are the standout points for each to me.
T56 Magnum
1) Fun, manual shifting
2) Already fits
3) Will keep the wife happy
4) Something violent about manual that's awesome, but hard on the car
5) Spendy $$
6) Slower than auto
4L80e
1) Strong
2) Will put less stress on other parts of the car
3) Faster than manual
4) Can be set up cheaper
5) Have to cut and weld the tunnel
6) Possibly not as fun on the street
I would really like to run in the 8's. Would running 8.9's be an obtainable goal on a t56 magnum with a 3000lb car? Without worrying about breaking it in a short amount of time? Also I do not want to spend any more than the t56 magnum costs, when you add a clutch and everything that is about the max. I do really like the looks of the taller gearing of the one magnum. A buddy of mine said the t56 shifts like a dump truck that scared me a bit, is this true? I figured he was just trying to be an ***?
I really like the idea of being able to pick up a cheap JY 4L80e, hit it sloppy mechanics style and get the car rolling on the cheap. I can always upgrade it later from there once its rolling. One thing I am unsure about auto wise is the converter, I have never set up a converter and don't want to have to pull it out of the car a bunch of times to get it set up/spec'd correctly. I would like to try an auto out though, my one buddy said "Auto is king, its easy to go fast with them, real fast.". That has sort of intrigued me. I really like how auto doesn't fall out of boost between shifts like a manual does.
Here's a few photos of the 350z rear diff and axles.
The transmission decision is a tough one no doubt about it. I am really struggling to decide. Here are the standout points for each to me.
T56 Magnum
1) Fun, manual shifting
2) Already fits
3) Will keep the wife happy
4) Something violent about manual that's awesome, but hard on the car
5) Spendy $$
6) Slower than auto
4L80e
1) Strong
2) Will put less stress on other parts of the car
3) Faster than manual
4) Can be set up cheaper
5) Have to cut and weld the tunnel
6) Possibly not as fun on the street
I would really like to run in the 8's. Would running 8.9's be an obtainable goal on a t56 magnum with a 3000lb car? Without worrying about breaking it in a short amount of time? Also I do not want to spend any more than the t56 magnum costs, when you add a clutch and everything that is about the max. I do really like the looks of the taller gearing of the one magnum. A buddy of mine said the t56 shifts like a dump truck that scared me a bit, is this true? I figured he was just trying to be an ***?
I really like the idea of being able to pick up a cheap JY 4L80e, hit it sloppy mechanics style and get the car rolling on the cheap. I can always upgrade it later from there once its rolling. One thing I am unsure about auto wise is the converter, I have never set up a converter and don't want to have to pull it out of the car a bunch of times to get it set up/spec'd correctly. I would like to try an auto out though, my one buddy said "Auto is king, its easy to go fast with them, real fast.". That has sort of intrigued me. I really like how auto doesn't fall out of boost between shifts like a manual does.
10-18-2014, 04:12 AM
#26
Really you can just order a good brand converter and more than likely be happy with it right out of the box.
I called circle d for my th400 verter and just said I have a 3700# car with a small turbo ls1 looking for a tight street driven only 3500 or so stall. He delivered exactly that, I can foot brake 3000-3200 and get on the 2 step no problem, any higher and it wants to push through the brakes. That is mainly my car, if I had a better brake setup or a vacuum pump for staging on my booster I could get it much higher. Im 2nd I can foot brake 4k rpm and a lot more boost.
Taking off it is exactly what I asked for, from 800-3400rpm ish it has that big stall feel like when you give it more throttle it will jump from 2k to 3k rpm but the car won't really move any faster. Soon as you hit 3400-3500rpm the car really starts to move good. Almost like V-tak just kicked in accept not gay AF.
I called circle d for my th400 verter and just said I have a 3700# car with a small turbo ls1 looking for a tight street driven only 3500 or so stall. He delivered exactly that, I can foot brake 3000-3200 and get on the 2 step no problem, any higher and it wants to push through the brakes. That is mainly my car, if I had a better brake setup or a vacuum pump for staging on my booster I could get it much higher. Im 2nd I can foot brake 4k rpm and a lot more boost.
Taking off it is exactly what I asked for, from 800-3400rpm ish it has that big stall feel like when you give it more throttle it will jump from 2k to 3k rpm but the car won't really move any faster. Soon as you hit 3400-3500rpm the car really starts to move good. Almost like V-tak just kicked in accept not gay AF.
10-18-2014, 08:57 AM
#27
Got the car washed up and ready for the swap. Here's a few photos of the 350z rear diff and axles. The transmission decision is a tough one no doubt about it. I am really struggling to decide. the standout points for each to me. T56 Magnum 1) Fun, manual shifting 2) Already fits 3) Will keep the wife happy 4) Something violent about manual that's awesome, but hard on the car 5) Spendy $$ 6) Slower than auto 4L80e 1) Strong 2) Will put less stress on other parts of the car 3) Faster than manual 4) Can be set up cheaper 5) Have to cut and weld the tunnel 6) Possibly not as fun on the street I would really like to run in the 8's. Would running 8.9's be an obtainable goal on a t56 magnum with a 3000lb car? Without worrying about breaking it in a short amount of time? Also I do not want to spend any more than the t56 magnum costs, when you add a clutch and everything that is about the max. I do really like the looks of the taller gearing of the one magnum. A buddy of mine said the t56 shifts like a dump truck that scared me a bit, is this true? I figured he was just trying to be an ***? I really like the idea of being able to pick up a cheap JY 4L80e, hit it sloppy mechanics style and get the car rolling on the cheap. I can always upgrade it later from there once its rolling. One thing I am unsure about auto wise is the converter, I have never set up a converter and don't want to have to pull it out of the car a bunch of times to get it set up/spec'd correctly. I would like to try an auto out though, my one buddy said "Auto is king, its easy to go fast with them, real fast.". That has sort of intrigued me. I really like how auto doesn't fall out of boost between shifts like a manual does.
5) Spendy $$ 6) Slower than auto 4L80e 1) Strong 2) Will put less stress on other parts of the car 3) Faster than manual 4) Can be set up cheaper 5) Have to cut and weld the tunnel 6) Possibly not as fun on the street I would really like to run in the 8's. Would running 8.9's be an obtainable goal on a t56 magnum with a 3000lb car? Without worrying about breaking it in a short amount of time? Also I do not want to spend any more than the t56 magnum costs, when you add a clutch and everything that is about the max. I do really like the looks of the taller gearing of the one magnum. A buddy of mine said the t56 shifts like a dump truck that scared me a bit, is this true? I figured he was just trying to be an ***? I really like the idea of being able to pick up a cheap JY 4L80e, hit it sloppy mechanics style and get the car rolling on the cheap. I can always upgrade it later from there once its rolling. One thing I am unsure about auto wise is the converter, I have never set up a converter and don't want to have to pull it out of the car a bunch of times to get it set up/spec'd correctly. I would like to try an auto out though, my one buddy said "Auto is king, its easy to go fast with them, real fast.". That has sort of intrigued me. I really like how auto doesn't fall out of boost between shifts like a manual does.
10-18-2014, 12:28 PM
#28
Staging Lane
Thread Starter
Really you can just order a good brand converter and more than likely be happy with it right out of the box.
I called circle d for my th400 verter and just said I have a 3700# car with a small turbo ls1 looking for a tight street driven only 3500 or so stall. He delivered exactly that, I can foot brake 3000-3200 and get on the 2 step no problem, any higher and it wants to push through the brakes. That is mainly my car, if I had a better brake setup or a vacuum pump for staging on my booster I could get it much higher. Im 2nd I can foot brake 4k rpm and a lot more boost.
Taking off it is exactly what I asked for, from 800-3400rpm ish it has that big stall feel like when you give it more throttle it will jump from 2k to 3k rpm but the car won't really move any faster. Soon as you hit 3400-3500rpm the car really starts to move good. Almost like V-tak just kicked in accept not gay AF.
I called circle d for my th400 verter and just said I have a 3700# car with a small turbo ls1 looking for a tight street driven only 3500 or so stall. He delivered exactly that, I can foot brake 3000-3200 and get on the 2 step no problem, any higher and it wants to push through the brakes. That is mainly my car, if I had a better brake setup or a vacuum pump for staging on my booster I could get it much higher. Im 2nd I can foot brake 4k rpm and a lot more boost.
Taking off it is exactly what I asked for, from 800-3400rpm ish it has that big stall feel like when you give it more throttle it will jump from 2k to 3k rpm but the car won't really move any faster. Soon as you hit 3400-3500rpm the car really starts to move good. Almost like V-tak just kicked in accept not gay AF.
I want to be able to footbrake the car. That is one of the main reasons I would like an auto in this car, I have heard it takes a ton of shock/abuse off the driveline parts because it loads up the power.
Do you think the magnum is a good choice and would take the abuse well? I think with the vehicle being around 3000# that should make it a little easier on the trans. I am going to have to try and dig up the weights of the guys that have dipped into the 8's with a 6mt. I think running 8's in general is less than easy, I am just hoping with the low vehicle weight and with the right motor/turbo combo it can be done. Something about not many people doing it makes me want to try for some reason. I don't want to break a bunch of driveline parts though, I really want to stick to the KIS mentality on this build.
10-18-2014, 12:46 PM
#29
I think a face plated trans is what you want. I'm not sure if anyone offers a FP magnum yet. I know there are plenty T56's out there though. There is a member on here who Recently broke the GM 6spd record. I think his name is blue99fbody. He posts in the manual tranny section a lot and could shed more light on going really fast with a 6spd.
10-20-2014, 10:41 AM
#30
Staging Lane
Thread Starter
After a lot of research and thought this weekend it looks like I will be running a 4L80e. It seems to fit better with the builds Keep It Simple mentality. The auto will also help keep the stress levels down on drivetrain components, and that is a major plus in my book.
The 6 speed will be too much $ to set up correctly and I also think driving a faceplated/dogbox around on the streets would probably get old after a few weeks. I would hate to pick up the magnum and trash the syncros trying to shift it fast with all the power. After looking thru blue99fbody's build and threads, 8's on the 6 speed looks extremely difficult. IMO 8's, with a 6 speed, and in a street car would almost be miraculous.
The 6 speed will be too much $ to set up correctly and I also think driving a faceplated/dogbox around on the streets would probably get old after a few weeks. I would hate to pick up the magnum and trash the syncros trying to shift it fast with all the power. After looking thru blue99fbody's build and threads, 8's on the 6 speed looks extremely difficult. IMO 8's, with a 6 speed, and in a street car would almost be miraculous.
10-20-2014, 11:02 AM
#31
After a lot of research and thought this weekend it looks like I will be running a 4L80e. It seems to fit better with the builds Keep It Simple mentality. The auto will also help keep the stress levels down on drivetrain components, and that is a major plus in my book. The 6 speed will be too much $ to set up correctly and I also think driving a faceplated/dogbox around on the streets would probably get old after a few weeks. I would hate to pick up the magnum and trash the syncros trying to shift it fast with all the power. After looking thru blue99fbody's build and threads, 8's on the 6 speed looks extremely difficult. IMO 8's, with a 6 speed, and in a street car would almost be miraculous.
yeah man 8's and 6spd don't mix well. It sounds like you know what you want and the 4l80e is right choice for your route. Good luck! 
10-20-2014, 09:24 PM
#34
Wow! Love everything this thread has to offer. My bestfriend drives a 03 Subaru WRX that only makes 270awhp and he thinks it's the fastest thing in the world. Yet he still gets yanked by stock 5 gens and modded Cobalt SSs lmao. I always joke with him about how it's a turd and how he should LS swap it but he's more into aesthetics. This thread just gives me even more reason to rub it in his face and joke some more haha. I personally like the WRX/STi and the potential they have though, awesome cars once built/done correctly.
But one with an LS based V8 turbo swap is definitely a top contender in my books. That is awesome man! Can't wait to see the end results of this and how much feelings you hurt on the road and with the die hard subaru crowd hahaha.
But one with an LS based V8 turbo swap is definitely a top contender in my books. That is awesome man! Can't wait to see the end results of this and how much feelings you hurt on the road and with the die hard subaru crowd hahaha.
02-09-2015, 06:48 PM
#37
TECH Apprentice
To run 8's that thing is going to have to hook pretty darn hard. Looks like your ditching the AWD setup, what size stickies do you think you can squeeze back there?
