93 2seater no 2+2 na to tt swap

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
User avatar
lamarz32
Posts: 8
Joined: Fri Jul 16, 2010 10:20 am
Car: 1993 z32
Contact:

Post

Hey my names Lamar. I just bought a 93 na 2seater. It has about 168,000 miles on it. Im currently in iraq but when i come home i wanna do a tt swap for the car. I did some research but for the most part the trannys seem to be the same for the most part so i plan on just swapping the engines for now. I already installed an HKS hi power exhaust and a few other things for suspension and braking while i was home on leave. Im curious how much of a pain in the a** this swap is gonna be. Budget isnt an issue its gonna be me and my friend swapping it. He built himself a 12 sec rb25 240 and he's pretty good with swaps. I keep reading how this isnt possible and stuff like that. Can someone give me a realistic figure of how much im gonna spend on just doing the stock swap.


User avatar
evildky
Posts: 14225
Joined: Sat Jan 31, 2004 9:23 pm
Car: 71 Datsun 240ZT
87 Nissan 300ZX N/A-T
06 Nissan 350Z GT
Toyota Tundra TRD RW
Location: Louisville, KY
Contact:

Post

Z1 sells a swap package, which in cludes a fornt cut (which I highly recomend adn it includes allt he air piping and intercoolers and oil cooler and such that you don't get with a pallet motor it's also known milage as it comes ith a cluster and is more protected in shipping so you have a much better chance of getting a good one) as well as many popular replacmetn items for $5k, which is why I recomend selling the n/a and buying a TT

User avatar
lamarz32
Posts: 8
Joined: Fri Jul 16, 2010 10:20 am
Car: 1993 z32
Contact:

Post

yea i here that alot about just selling it and getting the tt. im not gonna worry about it. for the cost of parts for the tt swap ill just go rb26. it bolts directly to my transmission already i just have to get the bellhousing from the 26 transmission and i can keep my driveshaft. that way i can have fun and add much more power in the long run.

User avatar
evildky
Posts: 14225
Joined: Sat Jan 31, 2004 9:23 pm
Car: 71 Datsun 240ZT
87 Nissan 300ZX N/A-T
06 Nissan 350Z GT
Toyota Tundra TRD RW
Location: Louisville, KY
Contact:

Post

you must not know what "bolts directly" means ;) RB's are overplayed ricer fodder, and has no more potential than the VG30DETT just a higher initial cost

User avatar
lamarz32
Posts: 8
Joined: Fri Jul 16, 2010 10:20 am
Car: 1993 z32
Contact:

Post

when i said bolt directly to i meant i swap the awd bellhousing with my bellhousing on my transmission the engine and transmission can put right together. the vg is sweet im not doubting the engine i just like the open turbo setup rather than the turbos practically underneath the engine and the inline six is sweet bro u cant deny it. its costly but the money isnt an object me and my boy are gonn do it i jst gotta make sure to get the right parts. this guy did this exact swap and built a nasty z check it out http://www.supraforums.com/forum/showth ... p?t=589433

User avatar
labcoatmonkey
Posts: 301
Joined: Fri Jul 11, 2008 10:53 pm
Car: 1991 300zx JDM TT I miss u 01 alty
Contact:

Post

evildky wrote:you must not know what "bolts directly" means ;) RB's are overplayed ricer fodder, and has no more potential than the VG30DETT just a higher initial cost
IMO RBs are a great nissan motor, and a great way to make space for power under the Z's hood. They are easier to work with and have more potential then a V motor hands down. Dont get me wrong I love the VG motor, and it's solidity but for those who like to do their own work on the car, RB will make the work easier and less costly.

User avatar
evildky
Posts: 14225
Joined: Sat Jan 31, 2004 9:23 pm
Car: 71 Datsun 240ZT
87 Nissan 300ZX N/A-T
06 Nissan 350Z GT
Toyota Tundra TRD RW
Location: Louisville, KY
Contact:

Post

labcoatmonkey wrote:
evildky wrote:you must not know what "bolts directly" means ;) RB's are overplayed ricer fodder, and has no more potential than the VG30DETT just a higher initial cost
IMO RBs are a great nissan motor, and a great way to make space for power under the Z's hood. They are easier to work with and have more potential then a V motor hands down. Dont get me wrong I love the VG motor, and it's solidity but for those who like to do their own work on the car, RB will make the work easier and less costly.
um, no

the RB is a very capable motor as wal the L6 it replaced, and the VG30DETT is also very capable as was the VG30ET ir replaced, nissan has made some greatmotors and these are only a few of them, but ultimately, the old saying is true, there is no replacment for displacment, the VG moves aproxox 15% more air per revolution, for the RB to make the same power it has to work harder, both engines need the same mods at abotu the same points to make power, the fuel injectors and turbo's are the first obsticle in making power in both engines, both are capable of making north of 500 whp wiht only those mods but the Rb has to spin faster to move the same amount of air to make the same amount of power

lets say you wanted to make a 500 whp Z32, you coudl either buy a $5k TT then spend $36 on turbo's and injectors and have $8k invested in yur 500 whp car or you coudl buy a $3k n/a then spend $3k on an RB26 then another $3k on turbo's and injectors to have the same 500 whp except you have a lot mroe work to do and a lto mroe downtime while doing so and now have $9k for the same result but with more front weight bias and a higher center of gravity, but yes, and RB makes for more workroom when it's done, oh and if you are hiring the work out the labor bill for the RB will be a heck of a lot more than the simple upgrades to a TT

User avatar
lamarz32
Posts: 8
Joined: Fri Jul 16, 2010 10:20 am
Car: 1993 z32
Contact:

Post

well we'll see i havent made up my mind either way im swappin for one of em the vgtt is simplier tru and i most likely do it cuz its cheaper too but ill kno for sure in about 5 months im just looking at all my options

User avatar
labcoatmonkey
Posts: 301
Joined: Fri Jul 11, 2008 10:53 pm
Car: 1991 300zx JDM TT I miss u 01 alty
Contact:

Post

Yea I agree evildky. The VG is basically a double-up of an RB motor. It also gets its 60% more torque reliability and tune ability then an rb26. From what I have heard it is easier to make high-end power on the RB though and that its bottom end is built more sturdy for higher revs.

If I were to swap an RB into the Z id make it a Bi-Turbo (small turbo prepowering large turbo = no boost lag). Yeah the tech is complex but Ive seen compact units that could just work.

Bottom line:

You want more room in the engine bay for a big a** snail = RB2*DET(T)

You want something native to the car that has more torque potential = VG30DETT, just be prepared to buy forced induction components in pairs unless you do a single turbo setup.


Return to “300ZX (Z32) Technical”