Engine Build Thread

Mr.Squeeze · 11-30-2012, 04:01 PM

Quote:

Originally Posted by DIGItonium

Yea, part of the upgrade is the CSF radiator. I didn't list it since I'm primarily focused on the engine.

Those who built their motors, anyone got away with reusing the VVEL portion? I think I read it least one person did it without any issues. I was actually thinking about building the block and reusing/upgrading my heads.

@Mike, any word on the lower manifold adapter? My plenum is still boxed up in the garage.

8000 miles on my built engine and I didn't replace VVEL .

I have a couple of things to add for now I'm down in Florida at the PRI show .

No need for nismo oil pump stock is fine .
There is a Haltec unit coming out for the 370 I just saw it
CP does not make pistons for the 370 it will have to be custom set .

elperuano · 11-30-2012, 04:06 PM

Quote:

Originally Posted by Mr.Squeeze

8000 miles on my built engine and I didn't replace VVEL .

I have a couple of things to add for now I'm down in Florida at the PRI show .

No need for nismo oil pump stock is fine .
There is a Haltec unit coming out for the 370 I just saw it
CP does not make pistons for the 370 it will have to be custom set .

What part of Florida r u in now, and more importantly are u here with that built monster?? Lol

bullitt5897 · 11-30-2012, 04:53 PM

Quote:

Originally Posted by DIGItonium

Yea, part of the upgrade is the CSF radiator. I didn't list it since I'm primarily focused on the engine.

Those who built their motors, anyone got away with reusing the VVEL portion? I think I read it least one person did it without any issues. I was actually thinking about building the block and reusing/upgrading my heads.

@Mike, any word on the lower manifold adapter? My plenum is still boxed up in the garage.

Call SAM... I know he has the production unit in hand... the first one is being installed as we speak.

Mike

DIGItonium · 11-30-2012, 09:55 AM

No stroker for my build, although it is tempting. IIRC, just more heat. I'm sure responsive tuning is more than adequate.

elperuano · 11-30-2012, 10:34 AM

Might have to upgrade turbos or push more boost to reach desired hp level but you can only turn it up so much before it becomes inefficient. Think the Gtm strokers I've seen have been on the 350 platform. Some TT stage 3 or big singles. The torque should definitely go up with the stroker, most likely more torque than hp.

Mr&Mrs · 11-30-2012, 10:35 AM

Im so glad this thread came up if I could rep you a bunch in one day I would. Im going to give Z1 a call and get a price list going and possibly start ordering parts. Then I can leave the car with them on the way home from ZdayZ next year

elliotty · 11-30-2012, 10:38 AM

I would love to be able to get price lists in the thread to help compare/contrast options by desired RWHP goals. Built internals, strokers, head work, etc. That would be a GREAT resource! I am happy to help out.

kpjc4eva · 11-30-2012, 11:12 AM

i dont think the stroker kit is necessary. unless your going for bottom end power and no top end. It most likely will kick in the spooling time for tiny turbos, but going with a bigger turbo i dont think you will ever reach full boost in it.

But i take the over kill as a compliment g37hks dood. im doing it right one time. im not going to take apart the engine just to get to the block again. building it from bottom up. might as well. but ive also thought isnt this what building a motor is?

oh well just my input.

Mr&Mrs · 11-30-2012, 11:37 AM

My view on it being overkill is that you are nearing 20k + build. I own two 370z now both with expensive visual mods, and one with TT.

Im not putting another 20k into one of these cars I will just sell both and get a GTR if I even think of spending that much more.

Quote:

Originally Posted by kpjc4eva

i dont think the stroker kit is necessary. unless your going for bottom end power and no top end. It most likely will kick in the spooling time for tiny turbos, but going with a bigger turbo i dont think you will ever reach full boost in it.

But i take the over kill as a compliment g37hks dood. im doing it right one time. im not going to take apart the engine just to get to the block again. building it from bottom up. might as well. but ive also thought isnt this what building a motor is?

oh well just my input.

kpjc4eva · 11-30-2012, 12:23 PM

Quote:

Originally Posted by Mr&Mrs

My view on it being overkill is that you are nearing 20k + build. I own two 370z now both with expensive visual mods, and one with TT.

Im not putting another 20k into one of these cars I will just sell both and get a GTR if I even think of spending that much more.

Cool more power to you.

Chuck33079 · 11-30-2012, 11:37 AM

Quote:

Originally Posted by kpjc4eva

i dont think the stroker kit is necessary. unless your going for bottom end power and no top end. It most likely will kick in the spooling time for tiny turbos, but going with a bigger turbo i dont think you will ever reach full boost in it.

A larger displacement motor will spool any turbo quicker. As far as it being for low end power and no top end, that's up for debate. I would think that cam profiles, any head work, and turbo sizing would be more of a factor in determining the shape of the curve. You'll definitely make more power down low, but I don't think we've seen enough stroked VQ37s to determine if they die off up top.

kpjc4eva · 11-30-2012, 12:30 PM

Quote:

Originally Posted by Chuck33079

A larger displacement motor will spool any turbo quicker. As far as it being for low end power and no top end, that's up for debate. I would think that cam profiles, any head work, and turbo sizing would be more of a factor in determining the shape of the curve. You'll definitely make more power down low, but I don't think we've seen enough stroked VQ37s to determine if they die off up top.

If I'm remembering correctly the stroker kit from GTM shortens your revolutions. So if you bought a stroker kit, for example and my understanding, and managed to stuff a 71mm turbo down I think its going to need more time to spool up, right? So our cars are what 7300rpm? If its full boost at 6500 hundred and the stroker kit knocks out the revolutions to 7000 rpm, what exactly is the point of a stroker kit? The 71mm turbo will never be fully used. I don't know but thats my understanding of a stroker.

Boring out would increase the revolutions. I see that MORE beneficial. IF IM UNDERSTANDING THIS. Again, I could be talking about of my ***.

elperuano · 11-30-2012, 12:13 PM

Quote:

Originally Posted by kpjc4eva

i dont think the stroker kit is necessary. unless your going for bottom end power and no top end. It most likely will kick in the spooling time for tiny turbos, but going with a bigger turbo i dont think you will ever reach full boost in it.

But i take the over kill as a compliment g37hks dood. im doing it right one time. im not going to take apart the engine just to get to the block again. building it from bottom up. might as well. but ive also thought isnt this what building a motor is?

oh well just my input.

Overkill or not, I could only hope that if you do ever build your motor you use it to its potential! That is a GREAT list you have and with all that 600 hp would prolly barely scratch the surface of what your build could truly handle.

When I build I'll aim for 700+ and I'll make sure I run it at that. To me personally it's only overkill in any scenario if u don't use it accordingly, anything less is a waste.

elperuano · 11-30-2012, 12:10 PM

Especially if using a big single turbo. Single turbo on a stroker kit would be siiiiick! R some big twins like Squeeze has.. With e85 n meth the power would be great. We just have to wait til someone can go down this path. It's been done on the 350/35 platform already. Built motor + corn fed = big numbers

de_dust · 11-30-2012, 12:12 PM

pretty awesome information! noob here, i was wondering if there are any info or parts from the gtr engine perhaps that would help with building this motor? i understand that the two engines are substantial different, but i am assuming there are more GTR built engines out there.

i came across this during going around the web, Nissan GT-R VR38 Engine Build - YouTube

it would be awesome if someone does this for our motor.

11-30-2012, 09:55 AM	#4 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	No stroker for my build, although it is tempting. IIRC, just more heat. I'm sure responsive tuning is more than adequate. __________________

11-30-2012, 10:35 AM	#6 (permalink)
Mr&Mrs A True Z Fanatic Join Date: May 2010 Location: Tampa Posts: 4,207 Drives: RZ34 Rep Power: 31941	Im so glad this thread came up if I could rep you a bunch in one day I would. Im going to give Z1 a call and get a price list going and possibly start ordering parts. Then I can leave the car with them on the way home from ZdayZ next year __________________ Project Z <--Click - Check out the link too many mods to list!

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11-30-2012, 10:34 AM	#5 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 29	Might have to upgrade turbos or push more boost to reach desired hp level but you can only turn it up so much before it becomes inefficient. Think the Gtm strokers I've seen have been on the 350 platform. Some TT stage 3 or big singles. The torque should definitely go up with the stroker, most likely more torque than hp.

11-30-2012, 10:38 AM	#7 (permalink)
elliotty Enthusiast Member Join Date: Sep 2010 Location: Charlotte, NC Posts: 355 Drives: '10 PG Nismo TT Rep Power: 15	I would love to be able to get price lists in the thread to help compare/contrast options by desired RWHP goals. Built internals, strokers, head work, etc. That would be a GREAT resource! I am happy to help out.

11-30-2012, 11:12 AM	#8 (permalink)
kpjc4eva Base Member Join Date: Jan 2012 Location: Dallas Posts: 43 Drives: Marine Corps boots Rep Power: 14	i dont think the stroker kit is necessary. unless your going for bottom end power and no top end. It most likely will kick in the spooling time for tiny turbos, but going with a bigger turbo i dont think you will ever reach full boost in it. But i take the over kill as a compliment g37hks dood. im doing it right one time. im not going to take apart the engine just to get to the block again. building it from bottom up. might as well. but ive also thought isnt this what building a motor is? oh well just my input.

11-30-2012, 12:10 PM	#14 (permalink)
elperuano A True Z Fanatic Join Date: Oct 2011 Location: Southwest FL Posts: 1,374 Drives: G37S Rep Power: 29	Especially if using a big single turbo. Single turbo on a stroker kit would be siiiiick! R some big twins like Squeeze has.. With e85 n meth the power would be great. We just have to wait til someone can go down this path. It's been done on the 350/35 platform already. Built motor + corn fed = big numbers

11-30-2012, 12:12 PM	#15 (permalink)
de_dust Base Member Join Date: Sep 2009 Location: baltimore Posts: 92 Drives: 370z black on black Rep Power: 276	pretty awesome information! noob here, i was wondering if there are any info or parts from the gtr engine perhaps that would help with building this motor? i understand that the two engines are substantial different, but i am assuming there are more GTR built engines out there. i came across this during going around the web, Nissan GT-R VR38 Engine Build - YouTube it would be awesome if someone does this for our motor.