Na to tt

[nano300zx]

I want to do a na to tt swap can someone please give me a list of everything i will need to buy to do the swap! And around how much will it cost! thank you!

[NolimitZ32]

http://www.z1motorsports.com/PDFs/NATTconversion.pdf

[car nut]

[NolimitZ32]

My sentiments exactly

[Jehtte]

I loled.

[Zero to 300]

I did mine for about $3500 including engine, ECU, transmission. extra parts are kinda whatever you need, i had to get new exhaust, driveshaft and a couple other minor things.

But i did it all myself so that was my cost for me to pull it and everything.

I love it, very happy i did it, if your car is in good shape you might consider selling it and trying to find a TT but idk how you are so if your set on doing the swap get ready for a pain in the butt, cause that engine is in there and the TT doesn't fit any better.

[New Jersey]

my take on this is not in line with most members and when i do this i will just rebuild my n/a engine and piece together the rest of the parts.
this is better for me, because i wouldnt want to swap in a used engine/turbos/etc. (i would also like to do some mild upgrades at the same time so many clip parts or stock parts if i bought a tt car would be hitting the dumpster anyways. for example i am going to use gt2554r turbos, 2.5" ic pipes, and cheaper upgrade radiator and intercoolers)
selling your car and buying a tt gets you a high mile motor and turbos that are likely on their way out. also means you need to lose the hicas.
you would wanna blow your brains out if you did all the work to swap in a used motor/turbos only to find that one or both turbos were blown or you had bad compression on a few cylinders.
just my opnion, but i think it's worth thinking over.

[NolimitZ32]

NJ FYI NA and TT have different heads so if you plan on building a TT out of your NA they will be a handicap.

[marty1mc]

First Welcome Nano300zx. There are a ton of threads on TT swaps and at least one sticky. But, I will say that you can do it cheaply (as little as $3500) or you can do it for a whole lot more. The difference being parts, labor, and what upgrades you want to include. Mine cost me well over $10k to do. Here is a link to a thread I put up on it quite a while ago on the conversion...

history-of-my-z-part-2-the-conversion-t ... 09701.html

[nano300zx]

Thanks big help!

[New Jersey]

NJ FYI NA and TT have different heads so if you plan on building a TT out of your NA they will be a handicap.

you wanna hook a brother up with a link to info about the differences?
first ive heard of there being any major differences.

[marty1mc]

Here ya go New Jersey...A pretty nice summary of the difference between the NA and TT motors...

http://upload.z1motorsports.com/Z1%20Z3 ... ersion.pdf

[NolimitZ32]

same link I just posted above.

[marty1mc]

LOL, I just saw that.

[New Jersey]

from that link:
9. The heads are different between NA and TT. The castings are almost the same but not quite.
The intake and exhaust runners are of a different design in the turbo heads. The castings offer a
more open port for the TT. We have used them interchangeably before without any problems, just
probably results in the loss of some power, when using NA heads on a TT. It is significant enough
that it would take extensive porting to get NA heads up to TT specs. We use different spark plugs
on the NA and TT but we see them used backwards and every way in between a lot. The TT ones
we use are NGK PFR6B-11B which are slightly longer that the NA PFR6G-11. The longer plug is
“colder” which helps with preventing detonation at higher boost levels.


to me, thats no big deal. im shooting for around 400whp, but would be happy with 380whp. i just want a fresh build, great low end/powerband, and newer parts for reliability. used motors and turbos are not an option for me and teh differences between na motor and tt dont seem to matter much to me.
thanks for the headsup though. i'd actually already read through that, but i guess i dismissed it due to Z1s attitude towards the differences.

[NolimitZ32]

The wrist pins is the big difference and they will fail under increased power. (and off course the High Comp pistons)

[New Jersey]

The wrist pins is the big difference and they will fail under increased power. (and off course the High Comp pistons)

those i already knew about. no biggy to deal with that stuff in a rebuild

[NolimitZ32]

So you are essentially going to rebuild your bottom end with TT components and used NA heads?

[New Jersey]

heads will be rebuilt as well, but yeah, na. (swapping to tt heads doesnt seem worthwhile at all)
the bottom end wont be "tt" parts, it'll be forged lower compression pistons and some arp hardware.

[NolimitZ32]

In that case you should be good, I though you were trying to turbo it in stock form. since you are getting the heads rebuilt might as well P&P them.