How to turbo your N/A

[danieltangtc]

I got a r33 gts............

I'll be buying a rb25det engine off justjap auto and putting it in my car......will it be a direct conversion...or are there any other things to change???

please advise me...

[666DAN]

Fuel pump will need to be upgraded for sure...you can replace driveline parts as they snap...your clutch will die also.

[gatty]

dan, could you check out my thread in my sig maybe mate?

it might be a option to turbo the current NA

[Hell_Bound]

wouldn't a RB20det Ecu go into the 25de loom? couldnt u do that and remap it?

[IanH]

How's this doing now Dan, I think the sensor is Lost in the Mail somewhere if it ain't turned up yet

Hope you get it all running shortly!

[666DAN]

Yep I think it's well and truely goooooooone

I'm running the GReddy boost sensor at the moment, it seems to have helped a fair bit with things.

[Leigh]

For guys who own R32s and R33s then the engine swap is probably the best way, but getting a cheap R34 Neo RB25DET...and getting it swapped is not a cheap option at all.

why is that not a cheap option swapping a r34 rb25det into it?

i am thinking of doing it

[666DAN]

Well the reason I said that was because when I was looking at doing it the engine package was $6-$7K...they're a lot more reasonable now..but it's still going to be at elast $2K to put it in.

The best option is to make an RB30DET out of your N/A engine

[Danielwilliams]

Great thread,

I too made the same mistake, that is buying a N/A skyline except mine is and R33 GTS. I am desparate to turbo my engine, however my local mechanic has told me that you cannot turbo the N/A....that is without ruining the engine! Reading this discussion has helped me see what can be done to the engine, with a low cost outlay and surprising gains, Thank you!

However I have a couple of questions,

How does the car now drive?

Is it as reliable as the N/A?

Are you sure that the modifications will not damage your engine?

cannot wait to get my project Turbo underway. :flamed: :flamed:

[gatty]

as long as you run

[666DAN]

DanielWilliam: The car currently pulls harder than a stock GTS..this is with the crappy N/A exhaust still in place and running 6.5psi that is probably down to the higher compression

I've had the turbo on my car for about 50,000Ks now and nothing has been damaged in that time, from a reliability point of view I think that's great. If the tune is good, you should have no problems...just don't expect to be able to cram 14psi in and you'll be fine.

[Danielwilliams]

Great to here that Dan,

It has put to rest the only real concern I had after reading the thread (the longterm future of the engine).

Sounds like the car goes real hard compared to the N/A You had and I have now, mine came with a full Trust exhaust out of Japan which will hopefully complement the turbo well. All I have to do now is get the funds together now and I can start the project.

I guess it is like you said tuning is the difference the car will run well and hard with some dollars in the tuning side of the car!

I will keep you informed to how my conversion comes along. I have some pics of the car in its current state in my gallery.

Cheers mate

[DaGr81]

what would you have to do to the engine before you can run alot more boost?

how can i lower my compression ratio... exhaust makes too much noise

[PHaT MR30]

I have seen heaps of N/A engines turboed and running 12psi or so and pulling some good figures.

[PHaT MR30]

If anyone is interested I have everything you need to do this swap

Off an RB25DET

Exhaust manifold

Turbo (No play)

Oil/Water lines

std dump pipe

Inlet manifold/Plenum

Fuel Rail and injectors

If anyone is interested in these PM me and i can send you pics

reason why i am getting rid of them, upgraded to GReddy plenum and getting top mount turbo setup

[gatty]

how much tim?

[PHaT MR30]

im not real sure!!!

i only thought of it when i saw this thread!

[666DAN]

Well I picked that lot up for $750, when i did my conversion....so if that's any help????

[PHaT MR30]

yeh well i was thinking round about that ball park, so let me know if your interested and i can arrange some photos and stuff for you

[Danielwilliams]

That list could make my shopping very easy!

That stuff is exactly what I am shopping for at the moment, what sort of condition is the lot in? whats your location in relation to Newcastle? Also with the condition of the parts in mind what is your best price?

Cheers