e15 carby to e15 turbo help

[hoppae15]

hey guys i have an n12 pulsar with the old carby e15 motor but i've been able to source a turbo head with everything on it (and in good nic) a turbo manifold and stantard turbo an afm all for free so i thought why not convert the motor over to turbo an efi for some more fun but having trouble figuring out what else i need obviously i need a ecu and wiring loom high pressure fuel system fmic but thats it im lost so if anyone has attempted this or succeeded in doing it? id love some help. im also unsure whether the turbos are water cooled or oiled cooled? any help with my little project would be much appreciated cheers hop

[TurboZ.Dude]

Hello there!

You have got a lot of work ahead of you! Replacing the loom will mean replacing the entire electrical system of your car! I don't want to scare you away from doing this, it's just a lot of work.

It's not impossible to do this kind of a conversion, but it's a lot of work if you want to go with the stock E15ET setup. Some of the guys will probably suggest you to start fiddling around with an aftermarket fuel pump together with an aftermarket engine management system, because then you don't need to replace the entire electrical wiring in your N12 Pulsar.

But if you do want to go ahead with the stock turbo setup, to start with, you will need all that which you already have mentioned, plus all this:

* The piston rods (which are shorter), because the turbo engine has much lower compression.

* The turbo gearbox, flywheel and starter motor. The carb gearbox can't handle the power from the turbo engine, and both the flywheel and starter motor are different on the turbo engine.

* The fuel tank from a turbo engine, together with the fuel pump that sits in that tank. The turbo loom has the proper wires for the turbo fuel pump, obviously, so it would be a matter of plug and play if you use the turbo fuel tank. You can also use an aftermarket fuel pump, but then you have to do some custom installation to make it work properly.

* The turbo oil cooler and the fuel pressure regulator that sits on the oil cooler bracket, but to attach that to the carb E15 block you need to replace some of the bolts at the rear of the block with longer ones, as well as remove a ball valve which sits on the block behind the oil filter because otherwise the oil cooler doesn't bolt on. The oil cooler has exactly the same ball valve so you don't have to worry about that.

* Need to tap into the oil system to get lubrication for the turbo. The turbos are usually not water cooled. They can be, but it's rather unusual. If your turbo is, you obviously need to tap into the cooling system.

* The distributor, the turbo one doesn't use vacuum advance and has a disc inside which has 360 slits, optical ignition so to speak. You can't use the carb distributor together with the original turbo ECU.

* The correct thermostat housing, because your ECU will need a place for its' own temperature sensor (not the one for the dashboard temperature meter). The carb thermostat housing only has a place for the dashboard temperature meter sensor.

Speaking of dashboard, you need the turbo gauge cluster (the one with speedo, tacho, odo, etc.) because the electrical plugs for the gauge cluster are different on the turbo gauge cluster than on the carb gauge cluster AFAIK. Since the gauge cluster has a boost meter, you need the boost sensor too (should be somewhere near the windscreen wiper motor if I have understood correctly).

I haven't finished my carb->turbo conversion yet so I don't know all the details. I may have missed on something here. And my conversion project is a slow one so you may get yours finished a lot before I finish mine.

Cheers,
Jan

P.S.
Basically, you can get off with much less work if you get your hands on a turbo block, because it has the right bolt lengths for the turbo oil cooler and it also has the oil taps for the turbo lubrication.

I also suggest that you improve the brakes and the suspension.

And guys, correct me if I'm wrong!

[hoppae15]

thanks heaps mate thats alot of info i needed do you think it would be easy to use a water cooled turbo instead of oil something off a ca18 or sr20? i was thinking aftermarket computer and fuel system cause it maybe a simpler conversion and i could have it up an running a soon as possible. my thoughts were to build a stantard e15t and then build from there but it may be better to build a good motor. time is no issue as i just need something to do ha ha im also stripping the entire car an painting it so changing the wiring may not prove to be that much of a challenge. ive already done abit of suspenion work swaybars an stifffer shocks just simple stuff next was brakes. these cars are so much fun the closest thing to a road legal go kart really cheers

[TurboZ.Dude]

Well, aftermarket stuff and turbo modding stuff actually goes beyond my expertise! I have learned this what I told you through talking to the other guys at this forum.

I've never had a turbo car before, so modifications for these are above my head right now. That's why I'm going for the stock E15ET setup, I will plug and play so to speak, and learn things from the stock system to begin with. I will learn new things about the turbo technology while using and modifying the E15ET engine after I have converted it to stock E15ET, that's my way to learn. Just thought I would share what I have learned since you happened to ask a question I could answer.

I think Evan ('E') and/or Damo have the knowledge to answer your latest questions. Don't worry, they will show up as soon as their names are called.

[hoppae15]

yeah thanks heaps this is my first turbo engine build so any help is greatly appreciated cheers

[Ash]

do you think it would be easy to use a water cooled turbo instead of oil something off a ca18 or sr20?

may as. you will no doubt use a bigger turbo anyway and nearly every turbo we could possably use on our E15ET's is water cooled. other than some old shit like the old T25 sized Schwitzers and stock Leaded model T2's.

[tassuperkart]

Sorry Hop but dont waste your time and money.

Ive done the exact conversion and its not worth the time and hassle unless you have everything you need at hand. I had a heap of stuff I had collected cheaply and did everything myself. Its a very big job.

Honestly M8, pick up a shitter ET/EXA turbo and start from there. It would be cheaper to grab a shitter from Melbourne and drive it back than do a "proper" conversion.

My 2 bobs worth.
L8r
E

[gopulsar]

gotta love this mans honesty..... and hes dead right in my opinion too!!

[Ash]

gotta love this mans honesty..... and hes dead right in my opinion too!!

of course he is. it is just common sense.

[TurboZ.Dude]

Quite true. I don't always follow common sense, in contrast to E.

[tassuperkart]

Ahh yes, but your circumstances are a fair bit different to ours M8.
Over here, Turbo ET's and EXA's are available cheap and easy. Some of them are just about given away.
Over in your neck of the woods, you have to look very long and hard just to find one at all or just do it the hard way as you are doing.
Not a lot of choice really IF you are bent on owning one of these cars.
Way it is tho.
L8r
E

[TurboZ.Dude]

I was joking m8.

But you're absolutely right.

[tassuperkart]

You silly silly Finman!!!!

[Ash]

Over here, Turbo ET's and EXA's are available cheap and easy. Some of them are just about given away.

again you are dead right. McDonalds very soon will be giving away N12turbo's with their Happy Meals. ET's for boy's and Exa's for the girls.

[TurboZ.Dude]

ET's for boy's and Exa's for the girls.