Z31 300zx How to LS swap guide

[@officialforwardmovement]

I love this video! Thank you, I’m still super new working on cars and I have also been interested in LS swaps so this video helps. I’ve rebuilt my VG30 twice and am looking at moving to an LS as my next platform.

[@ikonik7777]

THANK YOU!!! Hopefully i'm the only 1 in Utah with a LS Swapped 300z

[@travismassingale7801]

ur budget seems endless after i heard Mickey thompson. but ty for all the uploads. gives me tons of mind swirl ideas

[@lstz31]

Oh shit, a shout out!

[@GTRX-sp2sh]

Hi How was the number of RBM of your engine running while you were driving

[@elijahsimpson1629]

How did you get tach and speedo to work with digital dash? Is there a wiring diagram you found somewhere?

[@BLITZERKING1]

The wiring is in the Factory Service Manual but I used this site to easily find what wires I needed on the EFI plug by the right side footwell, it's a great resource xenonzcar.com/z31/DEwiring.php

[@BLITZERKING1]

I used the stock tach wire to wire in my diyautotune tach adapter and output the tach signal in my Goldbox to the dash(you can find it on their website). Then I wired my T56 magnum VSS signal from the trans into my Goldbox. The Goldbox has a VSS output wire going to the stock wiring that connects to the speed sensor in the engine bay (the sensor that takes the cable driven speed from the stock trans and outputs a digital signal to the dash, for digital dash cars onpy)

[@Dannymclovin]

The z31 ls swap has seem to be taking off over the past few months I just finished mine working out the bugs out tell me what turbo did u use I tried using a gt45 but it didnt seem to fit

[@BLITZERKING1]

I used a VS racing billet 7875 and it easily fit

[@Dannymclovin]

@@BLITZERKING1 how did you get 3.5 in down pipe to fit it seems the steering shaft would be in the way

[@BLITZERKING1]

@@Dannymclovin trust me it was no small task. It's super tight, you just have to snake the piping around the steering shaft

[@Dannymclovin]

@@BLITZERKING1 as for the final placement for the turbo howd you do it like what did you do to hold the turbo up while you merged the pipes together

[@BLITZERKING1]

@@Dannymclovin I held the turbo up with some straps where I wanted it. Then I welded the turbo flange and some thick steel pipe right to the stock flipped truck exhaust manifold on the driver side

[@pew-pewproductions4258]

In the beginning of the video, you said the VG30 is a good motor. I have an 85 z31 N/A. I have been considering simply swaping to the stock turbo motor, then upgrading the turbo rather than attempting to put a turbo on the N/A motor. What are your thoughts. I dont want more than 300-400 HP.

[@pew-pewproductions4258]

Also what are the benefits of the Z32 tranny vs the stock tranny. (manual not auto)

[@BLITZERKING1]

@@pew-pewproductions4258 boost the NA motor. The compression ratio is better

[@BLITZERKING1]

@@pew-pewproductions4258 The Z32 5 speed is strong and easier to find than the 87-89 turbo 5 speed. At 300-400hp you'll probably be fine with a 71C though

[@That_Z31]

I’m doing this 5.3 swap with the ar5 transmission is there a certain brake booster I need to buy or can I still use the s13 one

[@That_Z31]

And will I still be able to use the s13 master cylinder

[@BLITZERKING1]

@@That_Z31 get the S14 manual transmission non ABS booster or the 90s Sentra one. A 240sx brake booster may work idk, not sure the brake line setup is the same

[@iamjoedy4883]

How much did the whole swap cost?

[@BLITZERKING1]

I think you can realistically do it for $6k. That depends on what transmission you want and if you want a turbo. Maybe I'll make a video about the cost edit: I made a Z31 LS swap cost video

[@charliepennington9788]

I am doing a 5.3 with a Holley Terminator X. I am going to try the t5 because I found one cheap and use a old 63 bellhousing which iv'e heard will work. I bought an adapter plate to connect them. Not sure what clutch will fit in that yet. Eventually going to a t56 or tko 500 or 600. I do plan on doing some type of cheap turbo kit but i'm not sure yet on what yet. I'm not looking to make crazy numbers somewhere between 400 and 500 hp. I was thinking of running it NA for a while but it sounds like it may be more of a headache trying to make the exhaust fit around the steering. Should I just go with a turbo kit and run low low boost? I'm hoping the stock z31 rear end and t5 transmission will hold up for a little while to enjoy the car until I upgrade to the new trans and 350z rear end. Thoughts?

[@BLITZERKING1]

People try to stay away from the T5's cause they don't take much power but you can try and roll the dice, see what happens. It'll be super easy to hit 400-500whp on low boost with a 5.3 so I'd go that route. I've heard guys use block huggers headers or even slightly modified late Camaro headers if you're NA so it shouldn't be too bad. The stock subframe should be fine for you if you aren't launching the car on slicks lol. It's quite a bit of work to convert to a multi link subframe

[@charliepennington9788]

@@BLITZERKING1 Thanks. No licks or launches. I will probably get Toyo R888 at some point. I had them on my s2k and they gripped nice when I wanted them to. I will probably just go right to the turbo kit. Any suggestions on the budget turbo kit? I was also thinking of doing the BTR turbo stage 2 cam kit. Needed or no? Stock cam and springs good?

[@BLITZERKING1]

@@charliepennington9788 I would definitely upgrade the stock valve springs at least. A cam will add a lot of HP, I like the summit stage 2 turbo cam. Just take the stock truck manifolds and flip them over to make your own turbo crossover. For a turbo I'd get a VS racing 7875. That'll hit you goals easily and the cast one is only $400

[@charliepennington9788]

@@BLITZERKING1 Thanks I will look at that cam kit from summit and that turbo as well. Fun stuff. Thank you!

[@charliepennington9788]

@@BLITZERKING1 Can you share a few more pictures of the way your ran the piping and how you welded it? I've read you can flip exhaust manifolds up and do it that way but I assume your run into clearance with the hood that way.

[@turbofedz8997]

I'm debating on the s13 sub-frame..how hard was it to install?..

[@BLITZERKING1]

It's not really hard. It's just time consuming, especially notching the body to fit the subframe. The S14 subframe is a little easier to fit and it requires 2 less notches in the body. It took me about a week of 5-6 hour days to finish mine. Someone more experienced could probably get it done a little faster

[@turbofedz8997]

Ok soo in your opinion the S14 is better?..I think is a bit wider rite?

[@BLITZERKING1]

@@turbofedz8997 yeah, it's about 10mm wider on each side so it clears the body better. It's supposedly has better suspension geometry too

[@turbofedz8997]

Ok so the kit that pastpower sells is for both the S13 and 14 correct?..I can get a hold of a S14 subframe with arms for a good price..the car on the my ICON picture is my Z..that was a picture fron nissan day in englishtown raceway New Jersey 2018..I'm from new York not that many z owners around here..sucks..

[@BLITZERKING1]

@@turbofedz8997 It fits the S13 subframe. It can also fit the S14 subframe easily with S13/S14 subframe conversion bushings

[@hunternakaerts6722]

You selling your old VG setup?

[@BLITZERKING1]

I sold it about 2 years ago to fund some of the LS swap