Converting Turbo To N/a

[GTS4WD]

Hay guys..

Im wanting to convert my RB20DET to an RB20DE.

As far as I know..

I need:

Headers

New head (?? Can an Rb25DE head fit without hassle?)

ECU (piggy back or new chip?)

pluming for the new intake

Exhaust flange (???)

Anything I missed?

Thanks in advance guys!

[r33skyflyin]

Why do you want to N/A a turbo engine....?

Just thought i would ask...

[GTS4WD]

1) Cant afford insurance etc. anymore..

2) need to settle down my driving

3) Have another turbo car

[Race_Bred]

  r33skyflyin said:

Why do you want to N/A a turbo engine....?

Just thought i would ask...

i was holding back on that question also....

people waste money to go forwards not backwards,

it would be a better idea to sell the car and buy a non turbo one?

instead of being down on money you will have money left over or you could even upgrade to a 33 non turbo

[GTS4WD]

Because I dont know what kind of deadshit drove the cars..

At least with this.. I know everything thats happened to it.. I know how well it runs.. I know that everything is in perfect working order and of a high quality.

I would be wasting more time/money in fixong other peoples problems.

Where as with this.. I can spend 1K save more money.. and easly swap it back to turbo further down the track.

[BADR33]

well pretty much all you will need im guessing would be, na ecu, na intake pipe, na exhuast headers, and possibly na injectors oh and to fiddle with the timing. otherwise should be pretty easy.

just find out what people need for converting an na to turbo, and reverse it

[Greg]

Your logic makes no sense, however, if you must:

Swap the entire engine over. You can pick up a decent RB25DE for under $1k which will bolt straight up to your existing box & flywheel.

Saves mucking around

[SKiT_R31]

  Greg said:

Your logic makes no sense, however, if you must:

Swap the entire engine over. You can pick up a decent RB25DE for under $1k which will bolt straight up to your existing box & flywheel.

Saves mucking around

I aggree with the above but it doesnt suit your " know everything thats happened to it.. I know how well it runs.. I know that everything is in perfect working order and of a high quality." argument.

Essentially all you need is to remove all the turbo gear, and run some stock headers (or some extractors)

But i would probably take it a bit further than that and revert to N/A Injectors and ECU, also up the compression to something similar to stock whether it be by some shaving/decking and/or NA different pistons - better for fuel economy. Cam etc is the same...

But if i was you.. i would be selling it and buying a second hand RB25, something a little more drivable as an N/A and just as good economy

[RBwhatever]

^^^^ Like SKiT_R31 said, you'll have to up the compression as well. It won't be properly done if you don't.

[andylaurel]

just do it cheap and nasty

unbolt the turbo and manifold

bolt up a set of stock headers

then get a NA crossover pipe and clamp your AFM to that.

low compression NA love.

[HackerX]

I doubt the insurance will be any cheaper anyway

[RBwhatever]

Yeah insurance probably won't be cheaper. Your just modifying your turbocharged car.

[smurf80]

As stated above it wont be any cheaper. It will drive worse than an NA model due to lower compression. Bite the bullet sell it and buy an NA car. U can get tests done to see if you are buying a healthy car or not. Not everyone thrashes the living daylights out of our cars.

Cheers

Chris

[andz]

something different

u'd be the first to do it

as suggested, sell it and buy a n/a, u'd have money your way, rather than spending it

cant u just get 3rd party insurance

Edited February 3, 2007 by andz69

[Greg]

your existing car was probably thrashed in japan for all you know... just sell it you will be much better off

[GTS4WD]

Well.. To all you nay sayers..

Its been completed..

4 Door R32 GTS4 with RB25DE.. and it runs as sweet as.

BTW. Insurance did go down. Bot by much. but down none the less..

[Nismo_God]

how much did it end up costing?

not being rude but u would have made money selling the turbo and buying the n/a....not sure that i would spend money when i could make money....also the car is still in the turbo model so it should still have attracted the higher insurance....what did u end up having to do?

[scathing]

  GTS4WD said:

Well.. To all you nay sayers..

Its been completed..

4 Door R32 GTS4 with RB25DE.. and it runs as sweet as.

In your original post you said it was an RB20DET going to RB20DE. My engine knowledge isn't encyclopedic, but the last time I checked pulling the turbocharger off an engine didn't give it another half a litre of displacement.

So you basically did what everyone else told you to do, and got an engine conversion.

I fail to see where you're getting "naysayers" from, since the objections people raised to your idea were for a situation you decided not to go through with.

[Spunky Munky]

You know what you need bro? A spinning,snapping, turning, twirling flykick to the head... LOL... nah, seriously bro - why the heck would you want to downgrade... ???????? Man... you're nuts.