will the n12 NA motor still work as a turbo motor ??

mystic_20_2000 · Post by **mystic_20_2000** » Thu Feb 12, 2009 5:44 pm

as the subject says. can i just use the n12 na motor and switch all the essentials

my motor either through rings/head gasket or valve stem seals. smokes a ton once warm and oil slightly milky ( i mean SLIGHTLY ) top layer and oil cap.

i am having tons of problems finding a decent block and head to replace this motor. Is it possible to use the NA block and head ??

Thanks in advance guys

photoglossy · Post by **photoglossy** » Thu Feb 12, 2009 6:02 pm

Sure it is. No problem at all. You will just have a 9.0:1 compression turbo.

What head is it? 15M? If it is an EFI N/A E15 it will be a 15M head same as a turbo motor.

mystic_20_2000 · Post by **mystic_20_2000** » Thu Feb 12, 2009 6:19 pm

haven't found a suitable NA motor yet. but there are a few on offer around town here.

dropping compression shouldn't be a problem - i can just use the e15et pistons ( i think ).

as far as i know .. apart from having a huge compression ( which can be fixed ) the only other difference is that turbo oil feed return line which will need to be drilled out.

photoglossy · Post by **photoglossy** » Thu Feb 12, 2009 6:33 pm

Dont bother dropping compression... Just run an intercooler and decent fuel and you will have a much better engine.

mystic_20_2000 · Post by **mystic_20_2000** » Thu Feb 12, 2009 6:40 pm

Awesome - i might have to back off the boost though - i dont think 15 PSi and a 9.?:1 compression ratio is a good idea on a stock puter.

Neo - ( see readers rides ) did something similar as far as i can remember, he started off with the stock Astra motor. and it was a scarey car.

chezza · Post by **chezza** » Thu Feb 12, 2009 7:41 pm

So what your saying is that if you just drill the block for the feed and drain.
Bobs ya uncle lol

mystic_20_2000 · Post by **mystic_20_2000** » Thu Feb 12, 2009 8:01 pm

chezza wrote:So what your saying is that if you just drill the block for the feed and drain.
Bobs ya uncle lol

Yeah thats what i am hoping ... lol

unless you can think of something that i am missing

chezza · Post by **chezza** » Thu Feb 12, 2009 8:17 pm

I didn't think it was as easy as that mate.

Damo · Post by **Damo** » Thu Feb 12, 2009 8:22 pm

Damo wrote:
mystic_20_2000 wrote:Awesome - i might have to back off the boost though - i dont think 15 PSi and a 9.?:1 compression ratio is a good idea on a stock puter.

Neo - ( see readers rides ) did something similar as far as i can remember, he started off with the stock Astra motor. and it was a scarey car.
He had custom forged pistons with re-jigged piston pins to drop crown height in the bore, because he had the extra throw of the E16 crank. You will need to do similar if you don't change the N/A rods for the turbo rods.

Damo

mystic_20_2000 · Post by **mystic_20_2000** » Thu Feb 12, 2009 8:23 pm

chezza wrote:I didn't think it was as easy as that mate.

i know that its not easy going from a NA pulsar ( as a complete car ) to a Turbo because you need the fuel lines upgrade the brakes and the ECU and harness.

i dont think there is too much more than - compression, oil feed return. if anyone else out there that can shed more light on this it would be really handy.

how bout it moderators ??

photoglossy · Post by **photoglossy** » Fri Feb 13, 2009 3:45 am

you will need an oil return into the sump. Im not sure if the NA block has a turbo oil feed in the back.

I have 2 NA EFI motors on stands in my garage. Im doing the same thing.

10psi in 9:1 compression should be killer!

TurboZ.Dude · Post by **TurboZ.Dude** » Fri Feb 13, 2009 8:24 am

photoglossy wrote:you will need an oil return into the sump. Im not sure if the NA block has a turbo oil feed in the back.

Nope, but it's got the "bump/mold/whatever" for it so it may be possible to drill a hole there and attach the necessary parts.

mystic_20_2000 · Post by **mystic_20_2000** » Fri Feb 13, 2009 9:17 am

TurboZ.Dude wrote:Nope, but it's got the "bump/mold/whatever" for it so it may be possible to drill a hole there and attach the necessary parts.

thats what i was thinking, drill out the hole. or weld a new fitting into the sump itself so i dont have to dick around if i need to replace the block.

ET pulsar bits are getting harder and harder to find cause we all keep blowing them up, lol. Just thought the N12NA would be a cheaper and more readily available alternative. the wrecker here has 2 sitting in his yard in ok condition.

TurboZ.Dude · Post by **TurboZ.Dude** » Fri Feb 13, 2009 10:07 am

mystic_20_2000 wrote: thats what i was thinking, drill out the hole. or weld a new fitting into the sump itself so i dont have to dick around if i need to replace the block.

Dicking around is probably the more durable alternative even if it requires more work. Don't wear yourself out though. Just kidding hehehe... partially.

mystic_20_2000 wrote:ET pulsar bits are getting harder and harder to find cause we all keep blowing them up, lol. Just thought the N12NA would be a cheaper and more readily available alternative.

Yep, you're probably right.

et_rider · Post by **et_rider** » Fri Feb 13, 2009 11:18 am

ok have an engine for you its a exa turbo engine for you it has a good head on it, it was running when pulled out suits rebuild exacly what your looking for a new set of rings and while your there bearings and your set.

now its my mate that is selling it he owns eyecandy accesories now he said he palletize it for you so you can organise it getting send over there:

now he has said $70 bucks for the engine and at a guess it should only be around 70 bucks shipping.

Now the offer is up to you i just now how hard it is to make a na turbo its not easy as i have half done one my self and gave up half waythough went out bought a et lol there is a lot of head fucks that cum into it near the end

if you decide to then feel free to give us a buz on 0402 527 704

ta matt

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will the n12 NA motor still work as a turbo motor ??

will the n12 NA motor still work as a turbo motor ??

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