Jump to content
View in the app

A better way to browse. Learn more.

300ZX Owners Club

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Hi,

 

Just gathering info at the moment, have an n/a auto at the minute but going think Iam going to put a TT in with a manual box, what would you say the cost would be? going to do the work myself.

 

Do I need the tt loom, ecu, prop shaft? are the engine mounts the same and what things needs to be altered on the car to get the engine in?

 

Thanks everyone,

 

Mark:biggrin:

  • Replies 28
  • Views 1.3k
  • Created
  • Last Reply

Top Posters In This Topic

Featured Replies

would be easier to sell yours and start again tbh.

 

engine and gear box will set you back approx 2000+ then your going to need a clutch pedal and tt loom also a ecu if your made of money then do it personally i would sell yours and get a good manual will be cheaper and easier.

Yep as above for the engine and gearbox conversion i reckon your looking at £2,500 easy, i considered it :)

  • Author

Thanks guys, but bought the car as a long term project, not made of money but the satisfaction will be worth it when finished lol

 

Mark

dont get me wrong the thought is always at the back of my mind, but to be honest i'll probably go with as many power mods as poss including a single tub, and a manual conversion :)

you can buy a dead Z for very little if you keep your eyes open, then you get a whole car and lots of spares, its cheaper than buying a box and engine.

Indeed keep your eyes peeled, you can get a manual TT needing bodywork etc, for anything from £500 upwards. Then make one good one out of the two. :)

Hi,

 

Just gathering info at the moment, have an n/a auto at the minute but going think Iam going to put a TT in with a manual box, what would you say the cost would be? going to do the work myself.

 

Do I need the tt loom, ecu, prop shaft? are the engine mounts the same and what things needs to be altered on the car to get the engine in?

 

Thanks everyone,

 

Mark:biggrin:

 

Mark, i know you said you wanted the car for a project, but if you are after a TT manual see my threads, http://www.300zx.co.uk/forums/showthread.php?t=135715 if you are interested drop me a line..

 

Rich

Unless the car is something very special it really does make much more sense to just buy a TT manual in the first place.

 

I've worked on 2x NA>TT conversions, but one was a Convertible (TT version never available) an the other had a lot of money already spent on its bodywork to make it worthwhile. Its more popular in the U.S where 2+2 or Slicktop owners will convert their NA's to TT becuase they were only ever available there as NA in the U.S.

 

But if you insist then keep an eye out for an Accident damaged TT manual, or a Rotting UK model - its easier to use a complete Donor vehicle than source indvidual parts.

 

To answer your questions :

 

Propshaft - You need Front half from a TT Manual and keep your NA rear half.

 

Loom - Your NA loom is fine. No boost solenoids, they can be wired in but most people just fit a Boost controller.

 

ECU - Yes you want a TT ECU or chip your NA ecu with a TT chip.

 

Engine Mounts - Same

 

You will need :

TT Conversion

TT Engine

TT ECU

Intercoolers and pipework

TT Radiator

 

Manual conversion

Gearbox

Clutch

Flywheel

Front prop half

Bellhousing shields

Gearshifter support bracket

2x rubber Gearshift faitors

Clutch Pedal box

Brake pedal box (or cut your existing brake pedal)

Clutch Master cylinder

Clutch Slave cylinder

Clutch hydraulic pipework - or custom 1m Braided hose with M10 fittings

 

You will find there are no brackets for the Intercooler pipework, so you will have to fabricate these (or cut them from the TT and weld in). Its mainly the 2 brackets either side the radiator you will find you need most. Other option is to fit an aftermarket FMIC which uses custom pipework.

 

The NA and TT radiator lower support brackets are in different locations. Ideally you would want to cut and reweld them in the correct place.

 

The TT alternator is higher amps, so you can swap that although not essential.

 

You will need the cog from an NA Manual speed sensor to match your NA rear diff. Gear cog is available separately from Nissan dealer.

 

NA and TT fuel pumps do differ, but the NA pump provides enough fuelling.

 

You will need to swapover the PAS bracket from your NA engine to the TT, in order to fit your NA PAS pump.

 

umm....This is of the top of my head so I may have missed something but I think thats everything, If i rememebr anything else I will add it to the list.

Edited by Yowser

Legrath, Hi

 

You said you helped on na to TT conversion for a convertible, can i asked whose car that was?

 

thanks

 

Rich

Legrath, Hi

 

You said you helped on na to TT conversion for a convertible, can i asked whose car that was?

 

thanks

 

Rich

 

That was Paul@swz's Convertible.

 

Topless also has a converted TT Vert.

Hi, i thought you might have done Topless's one, 'cod it used to be mine..

 

th_P5200012.jpg

 

rich :cool2:

 

What car used to be yours?

Dave the NA pump really isn't up to par for the TT, to be safe you need this setup

 

NA ECU with TT chip----stock NA Loom----NA fuel pump ECU----TT fuel pump

 

TT ECU--NA Loom with third wire for the three speed pump--TT Fuel pump ECU--TT fuel pump

 

 

With the NA ecu the fuel pump will be running at higher speeds so the best bet is the TT ecu with the third wire!

Hi Mark, The Blue one in the Photo, We came down on the way to Epsom for the races and dropped it off. (we are talking poss 8-10 years ago)i dont think you converted it, i think you sold it on to a girl and got a pearl white on and converted that.

 

Rich

Hi Mark, The Blue one in the Photo, We came down on the way to Epsom for the races and dropped it off. (we are talking poss 8-10 years ago)i dont think you converted it, i think you sold it on to a girl and got a pearl white on and converted that.

 

Rich

 

Oh yes remember it now, yeah I converted a pearl white one in the end :)

  • 3 weeks later...
Dave the NA pump really isn't up to par for the TT, to be safe you need this setup

 

NA ECU with TT chip----stock NA Loom----NA fuel pump ECU----TT fuel pump

 

TT ECU--NA Loom with third wire for the three speed pump--TT Fuel pump ECU--TT fuel pump

 

 

With the NA ecu the fuel pump will be running at higher speeds so the best bet is the TT ecu with the third wire!

 

which one of those combinations is right? im in the process of getting a tt main ecu and tt fuel pump, will i need the fuel pump ecu too? this third wire business..... is this from the 'fuel pump ecu' to the tt fuel pump, or from the main TT ecu to the tt fuel pump?

At what stage of the TT swap are you?

 

Best one is the last with the third wire running between the TT ecu and the TT fuel pump ecu.

so i definatly need the tt fuel pump ecu if im running the tt fuel pump?

 

iv currently got the NA car, and the TT lump, downpipes, radiator and all the inter-cooler pipework and the inter-coolers themselves, i will be using the NA loom however, and the NA manual box and clutch and flywheel from the NA too, realistically i would like to run the tt pump and tt main ecu, i get the impression this is best if not then where do i get a TT chip for my na ECU?

The NA clutch will last about 5 mins in a TT, na ecu and na fuel pump ecu are not the best setup as the fuel pump will be running a lot faster meaning you will be running rich and therefore underpowered.

With all due respect I will have to disagree with Mr. Bullet on this one, although I don't know what clamping force your upgraded clutch is, if you let us know this we can make a conclusion.

 

I presume you are keeping the NA rear end so the clutch will subject to even more torque than normal!

yes keeping the NA rear, well as with most things regarding this car there are a million different opinions non of which add up i cant find the clamping force, i only fitted it 3 weeks ago, and couple that with the fact the clutch they sent was a TT one so i drove all the way to blackpool to go get the right one, wich turned out to be a z31 turbo clutch???? was a direct replacement for mine on the NA..... i dunno..... failing that ill have to buy a flywheel and clutch kit, which will be outrageously expensive undoubtedly..........

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

Recently Browsing 0

  • No registered users viewing this page.

Important Information

Terms of Use

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.