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SR-Series Engines (DE/VE) Engine Discussion: G20, 91-94 Sentra SE-R, NX2K, 95-98 200SX SE-R, 98-01 Sentra SE


       
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Old Mar 12th, 2008, 01:17 AM   #1 (permalink)
sx_ual
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NEO VVL head on DE?

ive been told that it might work
just want some clarity
im planing to drop in a sr20de into my car for now.
i was planning to turbo it but i herd about the neo vvl.
is it just the head that makes the difference or is it the whole thing?
is it the same block?

thanks

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Old Mar 13th, 2008, 09:47 AM   #2 (permalink)
IanH
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I believe this has been done only on a SR20DE. Try researching on SR20.com
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Old Mar 22nd, 2008, 12:12 AM   #3 (permalink)
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nothing about the neo head on a de. anyone else?
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Old Mar 30th, 2008, 01:00 PM   #4 (permalink)
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it should work cuz the sr16/20ve are on the 2.0 block so i dont see why it wouldnt but im not totally positive
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Old Apr 27th, 2008, 10:28 PM   #5 (permalink)
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to clarify a little bit more the ve does have a higher compression than our de blocks as well. im not sure if the head will swap though i heard something about it maybe fitting, havent ever seen a vvl in real life so i couldnts say, and something about an additional oil line having to be run. i want to look into it a little more ill keep you posted...trying to find jsut the heads may be difficult, and prolly cost around the same as a sr20 det
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Old Apr 27th, 2008, 11:58 PM   #6 (permalink)
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Quote:
Originally Posted by SE-R Redline View Post
to clarify a little bit more the ve does have a higher compression than our de blocks as well. im not sure if the head will swap though i heard something about it maybe fitting, havent ever seen a vvl in real life so i couldnts say, and something about an additional oil line having to be run. i want to look into it a little more ill keep you posted...trying to find jsut the heads may be difficult, and prolly cost around the same as a sr20 det
i know that you can get replacement heads for the neo. locating them is the hard part since only 600 sr16ve engines were made. if anyone finds out anyhting let me know. i have an extra ga16de lying around and would love to try it out
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Old Apr 28th, 2008, 09:12 PM   #7 (permalink)
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Quote:
Originally Posted by sx_ual View Post
i know that you can get replacement heads for the neo. locating them is the hard part since only 600 sr16ve engines were made. if anyone finds out anyhting let me know. i have an extra ga16de lying around and would love to try it out
First and foremost you shoudl search SR20forum.com VE head swaps on SR's are thoroughly covered. There are a LOT more than 600 SR16 motors made, it is the SR16VE N1 that was rare. Lastly an SR16 head will NOT work on a GA16 motor. The SR components do not interchange with the GA components.
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Old Jun 10th, 2008, 10:54 AM   #8 (permalink)
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Originally Posted by wes View Post
First and foremost you shoudl search SR20forum.com VE head swaps on SR's are thoroughly covered. There are a LOT more than 600 SR16 motors made, it is the SR16VE N1 that was rare. Lastly an SR16 head will NOT work on a GA16 motor. The SR components do not interchange with the GA components.
^What wes said.........Also, wes do you know what the HP different is between the normal manufactured SR16VE and the SR16VE N1? I read were there were only 200-300 N1's made.
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Old Jul 15th, 2008, 01:20 AM   #9 (permalink)
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SR16VE have 175ps and SR16VE N1 have 200ps factory and SR20VE have 190ps factory

Last edited by PRIMERA-BOI : Jul 15th, 2008 at 01:23 AM.
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Old Jul 16th, 2008, 07:20 AM   #10 (permalink)
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Originally Posted by PRIMERA-BOI View Post
SR16VE have 175ps and SR16VE N1 have 200ps factory and SR20VE have 190ps factory
^This is why all the SR20VE guys put N1 cams in their motor.
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Old Jul 17th, 2008, 11:49 PM   #11 (permalink)
arthurw87
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I believe the SR20VE and SR20DE blocks are the same.

It probably will fit. But wiring the VVL function up might be a bit of a hassle.
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Old Jul 18th, 2008, 03:00 AM   #12 (permalink)
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im pretty sure the block's the same but DE have lower compression than VE
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Old Jul 18th, 2008, 07:28 AM   #13 (permalink)
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Originally Posted by PRIMERA-BOI View Post
im pretty sure the block's the same but DE have lower compression than VE
^Yeah the VE compression is like 10.3:1. The DE is 9.5:1 and some of the DE's are 10.0:1.

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I believe the SR20VE and SR20DE blocks are the same.

It probably will fit. But wiring the VVL function up might be a bit of a hassle.
^Blocks are the same. People put VE heads on DE bottom ends all the time on the sr20forum.com
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Old Jul 19th, 2008, 06:50 AM   #14 (permalink)
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Interesting.
Is lower compression better for turbo applications? Hence the lower ratio on DE?
And would this mean turbocharging a DE is a better route?
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Old Jul 21st, 2008, 07:30 AM   #15 (permalink)
MR-4DOOR-SR20DE
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Interesting.
Is lower compression better for turbo applications? Hence the lower ratio on DE?
And would this mean turbocharging a DE is a better route?
^Lower compression is better for boost because you can turn it up higher and not have to the head lift or a blown getting a blown head gasket. You can still boost a higher compression motor, you just have to be careful on how high you turn it up.

Each setup is different so it depends on what applications you are running before somebody can tell you what level you can turn it up to. 7lbs. is usually a stock.
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