Diy R34 Gt To Gtr Conversion

[Shotgun!]

Hey guys, just completed a gtr front conversion on my r34. Thought i should post up a DIY since i couldn't really find any here (maybe i just suck at searching). Just to clear 1 thing up first and foremost, its not a straight bolt on even if you have the so called "required parts". Theres still abit of cutting a modyfing involved. Oh and by the way i'm no car expert so please excuse if i don't name bits and peices of the car as they should be

Just bear in mind i havn't take measurements etc. I'm just showing you what i did and what is involved. First off here's the Parts you will need to make it work:

-obviously the GTR front bar, GTR bonnet

-GTR bonnet hinges (i made custom 1's instead, but highly advise you buy the hinges as it saves alot of stuffing around unless you're experienced with metal fabrication)

-GTR bonnet catch "assembly". alot of people just say 'bonnet catch' but that's wrong, you need the actual metal frame that catch sits on aswell. However you can also do what i did and not buy all that and just modify your current 1.

-custom supports and brackets/frames

So to jump straight in. Start by removing your hood. Pretty straight forward. If your using GTR hinges then obviously you want to undo bolts (1) and (2). however if you want to just modify your existing hinges then you just need to remove bolts (1) only. Do that and off she comes, and don't forget to disconnet your bonnet washer cable.

Next you want to remove your existing bar. Start by removing the 2 screws/clips in the top corners and the 3 clips in the centre.

Next you might want to lift the car and undo the screws which hold the plastic under-tray to your front bar and also in around the wheel arches, pretty straight forward. Then you want to reach in and undo the screw (1) for both sides and once that's done (2) is just like a clip so all you should have to do is yank the bar abit and off she comes.

SO...enough stripping, lets start adding. After alot of trial fitting etc, we decided to start with the bonnet. Now the difference between the GTR hinges and standard is the GTR 1's sit further inside the bonnet and probably about half a centimetre down(towards the front of the car). If you have purchased the GTR hinges skip this and go to the next step.

Using a nice thick peice of metal lying around, we cut out 2 peices of metal and smoothed the edges. Next we measure the ditance between the 2 bonnet screws and drill them out on the metal peice. Next we tried to get the most accurate measurement of how much further in the holes for the bonnet should be from standard. Don't hold me to it but i think it was about 2cm. amazingly enough we got it pretty f'in spot on first time round. Now On the first 2 holes we drilled, we welded 2 bolts to them. Spray that black and now we fit them. If there's anything you didn't quite get it should be self explanatory down below in the pic.

Next off is the bonnet catch. you'll notice that the frame that the catch sits on is on a slight slope, basically the difference between this and the GTR is that the GTR is straight, so we need to straighten this up until your bonnet closes nice and tight. Below is a pic of the already straightened frame as i forgot to take before pic's but i've drawn what i did.

Now however we're left with a gap at the bottom, once again i forgot to take a before pic but as you can see what you need to do is find or fabricate a bracket which sticks out to fill the gap. Use a nice long bolt for the bottom to sit in the oem hole, and drill a hole in the 2 pieces and just use a bolt and nut to hold them together.

Now your bonnet should be finished and looking something like this:

So with the bonnet done, now comes the hard part which is the bumper and the brackets n shit to hold it steady. First problem we ran into when trial fitting is the front Reo bar has 2 bottom kinks which touch the bar. shown below:

Next step, take the reo off. It's pretty straight forward, you should be able to see what bolts need to be undone, you'll find you also need to take off the side sections too. Next cut through the centre of the kinks and belt them down then weld them together:

When you come to fit the reo back on you'll see the reo's side bolts have a bit of space to allow you to re-position it, put it as high up (close to the headlights) as possible, then tighten up the bolts. this will help remove gaps between your bar and the headlights later on.

Now what you want to do is lift the support bar (pictured below).

First i created 2 brackets as seen below however they wern't really stable so i made another 2 as can also be seen below. Once those 2 are made the support bar was bolted down to them

Now the top section of the bar should rest on this support bar.

With all this done, the front bar was tested again, fitted and all done still seeking the rubber that sits between the bar and bonnet and also front lip/diffuser but as you can see below all good. waiting for the fenders to come in, will have to paint them first before i fit though =P. may have more pics later in the year if i respray the whole car.

I hope this helps those of you who are doing the conversion and helps those thinking about it to know whats involved. Just remember this is a write up of what i did. The process, planning and measuring itself all up took 3 days to complete, also of course because i wasn't working on it 24 hours a day and bare in mind i had my older bro and uncle helping, doing this on your own i could imagine alot of screws ups and wishes you had someone to help you hold half the shit =P good luck people.

[TriniGT]

Good stuff, I will be down this road beginning of next year.

[GTRAAH]

What about the Pumped rear guards

[mawzy]

Nice work. The top support bar you have fitted, and made brackets for, does the bumper just rest against that, or does it bolt to it? I also take it thats the factory gtt one just relocated? This is my mission over xmas, as i've just finished/finishing making full gtr kit to fit. Will have bottom lips for sale too, but very slightly diffrent than OEM. The two vents/openings in it won't have the thin divider. Will just be one big vent.

[Shotgun!]

yeh mawzy the support is just the gtt relocated and the bumper pretty much rests against it but at the same time i went ahead and put 2 or so screws in for extra support which you may or may not wana do. luckily enough i found an actual gtr at my cousins workshop yesterday hehe. took some quick pics. turns out the gtr is pretty much the same thing as i've done, only comes from factory and with proper brackets =P. i'll have the pics up soon. yeh about the lips n stuff i'm tryin to find oem lips cause not a fan of fibreglass, especially since it's in one of the places most likely to get cracked =(.

yeh GTRAAH if i find some might actually do it hehe, depends how bored i am and also good luck finding them . i just got the front fenders in today. they've been rolled already so A+ there. they're white though so not sure if i wana respray them now or wait and do the whole car cause i still have to respray my nismo skirts and rear bar...$$$

[jamie curran]

cheers mate ill be using this

[Shotgun!]

heres the pics of the actual GTR support bar. sorry if theyre abit unclear, like i said was just taking a quick pic.

[Zaver]

Hey that was really informative.. Thnx buddy, im planning on getting a GTR bonnet and already have GTR hinges, just still figuring out the bonnet latch thing.. Is it easy to modify the latch assembly to make it fit properly?

Would you have any idea how much i can get a GTR bonnet latch assembly for these days?

[Shotgun!]

yeh man it's not really that hard. theres a fair bit of bending ect, fitting that centre frame then seeing if it needs more of a bend, take it back off, bend some more until eventually you try to close your bonnet and it shuts.

one thing i probably didnt mention cause i wrote this up almost forgetting a few things needed, is when you undo the bolt at the bottom (see below) the bottom section of the frame no longer has any support. so once you bend the top part, you'll need for example a few peices of wood (not bricks as they will slide) to place under the bottom section, i used a jack (you can see below), so that way when you try to close the bonnet to see if it will actually shut.

Also after reading my post i forgot to mention that once you bend that top part, the bottom will be way off so you have to bend that inwards, then do the whole bracket thing. (see pics)

---->

sorry if i was abit unclear on these things but ultimately when you're doing it yourself and referring to this guide it'll probably make more sense.

and to answer your question Zaver i wouldn't have a clue where to get one from let alone how much they are. not enough broken down gtr's here people take too much care of them (as they should)

[MADE]

Bump for the dead!

I'm about to try this as well.

Deciding if getting a bonnet latch assy will make things simple as bolting on or will it need to be altered as well.

Since its 50 bucks wondering if its worth it or not for those who have tried it.

[babyskyline]

Wow that was very informative. I have a mate who is keen to do this in the next month or so....ill definitely be printing this off and showing him.

Cheers!!!

[Shotgun!]

Bump for the dead!

I'm about to try this as well.

Deciding if getting a bonnet latch assy will make things simple as bolting on or will it need to be altered as well.

Since its 50 bucks wondering if its worth it or not for those who have tried it.

not sure if it needs modifying but i doubt it. and for 50 bucks you've got nothing to loose man. can't beleive you even found 1 let alone for 50 bucks.

Wow that was very informative. I have a mate who is keen to do this in the next month or so....ill definitely be printing this off and showing him.

Cheers!!!

i never ended up showing the results

=)

[MADE]

Thanks I'll pick it up. Actually I think all the body parts will be just under $1000 USD total. I found a shop that has its demo car tucked away from 10 years ago. All carbon parts with the exception of the 1/4 and trunk. Hope all goes will look forward to some PM's if I get stuck.

[MADE]

Hey that was really informative.. Thnx buddy, im planning on getting a GTR bonnet and already have GTR hinges, just still figuring out the bonnet latch thing.. Is it easy to modify the latch assembly to make it fit properly?

Would you have any idea how much i can get a GTR bonnet latch assembly for these days?

The bonnet catch and latch assy's are about 5,000 yen each from Nissan in Japan. The brackets in post #7 are a little less.

I'm about 90% done with this, If you sue a GTR latch assy it will need to be modified as it is too long and it need a new hole in the bottom drilled. You can use the exsitining hole but it way off and was almost breaking the spot welds. (At least for the sedan.) As far everything went as instructed in the thread. But the sidemarkers plugs are different.

Edited June 3, 2012 by MADE

[Shotgun!]

The bonnet catch and latch assy's are about 5,000 yen each from Nissan in Japan. The brackets in post #7 are a little less.

I'm about 90% done with this, If you sue a GTR latch assy it will need to be modified as it is too long and it need a new hole in the bottom drilled. You can use the exsitining hole but it way off and was almost breaking the spot welds. (At least for the sedan.) As far everything went as instructed in the thread. But the sidemarkers plugs are different.

nice to hear man. yeh not sure if sedans are any different. i've seen a fair few sedans with gtr fronts (web pics, not in reality) so i wouldn't have a clue if the latch has been modified. when u say sidemarkers, do you mean the indicators? cause i bought nismo 1's so yeh i think the standard gt indicators don't fit the gtr guards

[MADE]

Yes , I am talking about the indicators, I ended up buying the Nismo set with GT-R harnesses fitted in about 10mins total. The only problem I ran into was sides skirts for the sedan it's a bit more difficult. Nissan makes 2 piece skirts which I have seen in person but could not verify from the part or in FAST by part number. This would have worked due to the GT-R design. I ended up modifying my one piece skirt into the GT-R lower fender piece.

Once I can figure out this MAC I can load pics. Thanks again shotgun since this is the only detailed thread I have found on the subject in English.

[skyline.gtt.34]

shotgun i must say u r a legend this is such a help doing the upgrade this week

[MADE]

[insanEskyline]

Hey, I have a gtt damaged, and put a GTR rada support. Is that easier to have than the Gtt rada and also.. Do I need anything special besides a gtr reinforcement ??

[Shotgun!]

Hey, I have a gtt damaged, and put a GTR rada support. Is that easier to have than the Gtt rada and also.. Do I need anything special besides a gtr reinforcement ??

Hey, to be honest i don't think it makes all that muh of a difference, but it might make putting that front bar a little bit easier because you might not have to make the brackets etc. As for the GTR reo, if you saw in my post you can just use the standard 1 and bend it in abit or yeh a gtr reo is fine.

that looks like awesomesauce man

shotgun i must say u r a legend this is such a help doing the upgrade this week

glad i could help, i made this post because i was so sick and tired of people who have never done the conversion before talking shit about how to do it when they had no idea. sadly mine is for sale now but hopefully soon i can move up to a real GTR