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Old 04-10-2018, 05:17 PM   #1
speedworxs
 
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1nz turbo with recipe!

so i am installing my turbo 1NZ in to a 02 mr2 spyder.

But
i'm going for a solid 400 hp (ish). I figure the 1.5 honda makes 400, why can't I
my recipe so far:
1nz block, crank $50
75mm vitara pistons (approx 8.5 c/r) $150 *thanks EchoLaQua*
CXRacing H-Beam Connecting Rods $200
crower valve springs, titannium retainers, and reground cams $800
Honda D-series ram horn style manifold (with 1nz flange) $300
Chinese/eBay turbo $300
ecu ??? (likely megasquirt or clone for cheap)
total 1800 +ecu
i'll need a clutch too

this recipe on civics (vitara pistons and t3/t4) is reliably making 400 hp. so i don't think i'm far off.
this is the honda site post #14

any input is great.

Last edited by speedworxs; 04-10-2018 at 06:25 PM.
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Old 04-10-2018, 06:41 PM   #2
Dliverance
 
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I think you might find it difficult to make that kind of power with that setup but I’m in to see what you get. I have an 03 spyder myself. I would love to put my 1nz in it with boost and put the 1zz in my Yaris lol.
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Old 04-10-2018, 06:42 PM   #3
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Btw, one of the reasons Honda’s can do it is because of head flow. Just food for thought.
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Old 04-10-2018, 06:50 PM   #4
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yeah, i have the head apart on my work bench now. i can port it out a bit, but its actually a pretty nice looking head to begin with. i think minor 'clean-up' and the port should flow ok.
i'm hesitant to make outrageous claims, i don't want to look like xbgod... but given that the Dseries is the same displacement, i didn't think it was too outlandish
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Old 04-10-2018, 10:26 PM   #5
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you're numbers are way off. you are missing about 100 parts. i figure it would be about $10,000 to get a reliable 260+hp. i don't think a reliable 400hp could be done for less than double. you are talking custom everything. the transaxle alone is going to be over $6000.

you're set up is going for an unreliable (chinese turbocharger) 160-ish hp...

for reference: the 2018 WRC yaris is 375hp. it costs over $100,000

Last edited by SirDigby; 04-10-2018 at 10:46 PM.
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Old 04-11-2018, 01:02 AM   #6
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Old 04-11-2018, 06:55 PM   #7
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considering i'm going to forged rods, lower compression, and cams, i don't think i'm suggesting anything crazy - blown_xa made 350whp with stock components
http://www.yarisworld.com/forums/sho...t=41181&page=4
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Old 04-11-2018, 09:35 PM   #8
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ah... i am reading this post....looks like a bunch of issues, one every month or so.. looks like the transaxle is trashed...and then at the end he blew the engine.
so, to build a RELIABLE engine, it is going to cost many monies
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Old 04-12-2018, 01:32 AM   #9
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30 psi is a LOT of boost. If you really want to make 400 horsepower, I suggest swapping in something that is already proven to make that kind of power. Something like a 3sgte.
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Old 04-12-2018, 11:09 AM   #10
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I'm curious why you don't go the 2ZZ route instead. Not hating, just seems like a better way to get a performance boost that's proven and potentially has more research for boosted applications. Of course Garm did 350+ bhp with a forged/sleeved build on his 1NZ, so you can totally do it.

That said, I've got similar dreams of putting a twin charged 1NZ into a MK1 MR2. =) It will mate with the transmission mounts of the MR2 if you use an xA/xB C50 bell housing, just have to fab the engine-side bracket.

The C56/C60 is a solid driveline, much stronger than the C50 from the xA/xB/Yaris/MK1 MR2. If you really need more power handling, you can always go E153 like the V6 swaps and they routinely do 300-400 bhp, but then you're out of my realm of knowledge as far as fit and fabrication.
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Old 04-12-2018, 11:20 AM   #11
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500 hp in a 1nz is def possible if you got that dedication, maybe ~350 is where you could be aiming, which can be achieved semi-reliably with some elbow grease.

i had an 02 spyder, fun car, always wanted to drop a 2gr in it, making it a nice mini evora.
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Old 04-12-2018, 12:19 PM   #12
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Post

Quote:
Originally Posted by enviri View Post
500 hp in a 1nz is def possible if you got that dedication, maybe ~350 is where you could be aiming, which can be achieved semi-reliably with some elbow grease.

i had an 02 spyder, fun car, always wanted to drop a 2gr in it, making it a nice mini evora.
yeah, i think 350 is achievable. i posted blown_xa build, since he made that power level on stock components. i am upgrading rods, pistons, and cam...
depending on turbo selection i don't think 350-400 is unacheivable.
also, i am using the c56 trans from my mr2, but the 1nz bell housing.
the mr2 only weighs 2200 so even if i get to 250hp, i almost double the factory power, and the 1nz is lighter with the turbo, than a 2zz.
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Old 04-13-2018, 11:27 PM   #13
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#1, combustion chamber (obviously) just soften some of the edges, and shine it so carbon won't stick
#2 intake port* this port is actually really well done. i admit i'm no expert, but it is clean and straight. no bad bumps or curves. minor cleaning to the casting flashes, the injector bung and the throat/bowl before the valve is all that i think is really necessary on the intake side.
#3 intake from top, again not much to really see.

after i clean the head with some solvent, generally get really high on cleaner solution (and make outrageous horsepower claims), i will take some pics of the exhaust port. which i believe is the exact opposite of the intake... it's too small, has a bump immediately after the valve, and like many toyotas in general, just not a high performance exhaust port (not insulting, meant works fine in factory condition)
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Old 04-14-2018, 09:32 AM   #14
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My buddy Evilthorne has a supercharged 2zz spyder in Kitchener ON. He's mention some spyder guys like to go 1nz...i dont get it, but the engines are generally crazy reliable.
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Old 04-14-2018, 10:48 AM   #15
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Quote:
Originally Posted by thebarber View Post
He's mention some spyder guys like to go 1nz...i dont get it, but the engines are generally crazy reliable.
lotus philosophy, add lightness!
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Old 04-16-2018, 03:36 PM   #16
speedworxs
 
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ordered my rods this weekend,
H-Beam Connecting Rods for Toyota 1NZ 140.9mm Rod
when they get here, bring to machine shop to make the 18mm wrist pin up to 19mm (then can use honda pistons, which are cheap and plentiful)
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Old 04-25-2018, 07:44 PM   #17
speedworxs
 
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cleaning my old block and head,
ghetto style hot tank !
https://www.youtube.com/watch?v=VaVGwAJVffY

this container,
http://www.canadiantire.ca/en/pdp/ne...-0424608p.html
this heater, i'm in an apt, cant do the outdoor stove submersible heater
this solvent
https://www.homedepot.com/p/Simple-G...3005/100060853
pics to follow tomorrow, got my rods in the mail (also pics tomorrow)
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Old 04-25-2018, 09:20 PM   #18
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Like the video, curious if you'll get solid results with the little electric heater..

Recommend being cautious with solvents and aluminium.. I trashed an old carb using a generic solvent (damned if I can remember which one, but it was a common household cleanser) - came out clean, but was brittle and pitted. I realise a cylinder head is a lot more solid, beefy hunk of material, but may be better to find an aluminium safe solvent.

While aluminium prefers more neutral pH, caustics are that much worse than acids it seems.. https://www.google.ca/url?sa=t&sourc...0F5fs27iRRH7K7 Clearly extreme, but thought it was a fun video.

Would hate to see you end up with cylinder head damage or a failure down the road.

-- Adam
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