I just got mine in yesterday , Now im not real happy with the way that it looks its all dirty (Upper Manifold, Valve Covers, Ill post pics later today or 2morow morning) Dirt dust and grim no oil but lotta dust do these motors sit in wearhouses or what why is it so dusty. Did i hear right that these motors have diff. cams or do only the VG30ET have that euro cam? Im gunna start rippin it down today I wanna take it to 3.5L , Does anyone know the cylinder wall specs the guy at the local dealership is gunna try to find out for me before i start machining, dont wanna make them too thin but i think i remember seeing a Z31 guy going to 3.7L without re sleaving or going threw the walls. Anything else that im gunna notice that will be diff on this motor other than the (upper Intake, Emmisions, Few Wires)? Its written in paintmarker that it has 18,000 do u think that this is an accurate measurment of mileage or is this just to get us here in the states to buy them??

 

VG30E USDM AND JDM ahve same sucky cams
3.0 VG to 3.5L??? don't think so...not enough material, people have already explred that realm
3.7L VG30ET??? ....won't believe that till I see it
IMO JDM motor mialage is a toss up...beleiving an importers milage claims on their engines are total guestimates in most cases

 

ahhh what the farthest uv seen a VG machined too. I wont know how close that mileage is untill i see the rim on the walls with only 18,000 like it says there should be virtually no rim at all. Suck azz on the cam problem thought I would have some cams to sell on here , since im just gunna swap my motorsport ones anyway!o-well

 

I've seen a VG30ET up to 3.2(local Z guy) and then of course there the VG33 block from the Pathfinder

this is from Z31.com...

"When Nissan designed the motor[VG30E/T], it used what is called a maximum displacement theory. That is, the motor cannot (should not) be bored, stroked or ported. The motor is designed for a specific size, to keep weight and reciprocating masses down."

 

DA-MAX, is a .20 over bore still too much for this case?

as for mileage, if you plan to tear it down and start over, the mileage is not very relevant (unless the engine has seen massive abuse affecting the actual block).

 

I agree about the mileage , didnt know about the maximum diplaccement thingy that neat but sucks for me!!

 

there are a few .20 over on z31.com

and this is the 3.2L guy from DC..bad *** car
http://z31.com/board/print_profile.php3?user_id=3264

 

What happens when you bore it out to the limit and then you screw the block again? Now you need a whole new block because you already bored it out to the max.

 

JB Weld sucka!!!

 

Well i have a good block in the car now so i figure if i blow this one i still have one good block with the oroginal bore and new pistons, Rings, Rods. But the plan would be not to go so far that its too far and aids in blowing the block maybe ill just hone it again like the old one and throw a new set of pistons and rods in it and all new bearings and focus on the heads.

 

paeco has a stroker kit for the vg30 engine that puts it up to 3.5 liter. it requires a bit of boring as well. costs a crap load though. if i remember correctly its around 1800 or so.

 

fwwwwwwwwww 1800 thats just alittle outta my price range, DA-MAX claims that its not possible but i also thought that i saw a kit for it. can Anyone document a 3.0 -> 3.5 conversion?

 

1. cylinder wall taper is minimal on these engines. I have a lawnmower motor that has a larger groove than my 165k spare engine.

2. Jeffy you gotta pay to play

3. hahaha JB Weld that would be fun to try.

4. You donkeys do know that the VE/VG have the largest stroke out of all the maximas right?

 

sleeve it

 

Guys wanna spend a pretty penny and see some gains, fab these into your VG Max and ull see some crazy Torque and HP.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2454299489

 

mine was dusty, but it cleaned right up though.

 

ya ill have some dusting to do 2morow!!! LOL

 

CRC green cans of brake cleaner.
Lazymans cleaner

also remember to go from top to bottom

 

Well I bid $75, but that other donkey outbid me.
One of you VGer's better hop on this.

Hell, maybe since it requires a custom intake manifold one of you guys could supercharge your maxima with these heads... you know, kill 2 birds with 1 stone. blah blah blah

 

lol not for me, not worth it for a 90 max vg maybe if we were talkin about an 04' 3.5 and we were puttin those type of head on and building custom intakes and stuff but not on a 90 max, dont need to spend 5 times as much as the car is worth under the hood, even though id love to do it!!

Top to Bottom !!!!Top to Bottom !!!!Top to Bottom !!!!Top to Bottom !!!!Top to Bottom !!!!

Ok Got it Ill go Top to Bottom !!!!

 

Here is something I found awhile ago. don't remember where...

"VGs are very much like L-series in that you can mix and match lots of parts. ALL North American VGs have the same stroke and they all have the same size bearing journals. I do not know about the VG20 found overseas. The VG30E block cannot be bored to use VG33 pistons, the cylinder walls are too thin. The magic formula to build a VG34 is this: Bore a VG33 block .060 over. Use *stock* 1995 Infiniti Q45 pistons, rings, and wrist pins. Use VG30ET rods with custom, larger I.D. small end bushings as the Q45 wrist pins are 1mm larger. You can use any SOHC VG crank (they are ALL cast), but there are differances in front snouts and related accessories so use one you've got all the parts for. Avoid any SOHC VG crank that's been run with a serpentine accesory belt as these tend to break off the crank snout! The above VG34 combination is the one used in the off road trucks. If I remember right this bottom end comes out to 10.5:1 compression, perfect for a street motor. Sly said a VG34 with "good" cams and stock heads will make 250hp on 93 octane in street-trim. With port work and the "right" cams and intake a VG34 can make 300hp on pump gas. Sly says that no matter what you do they won't make power over 6500rpm as the displacement is too big for the head design. The question I've never heard answered is what happens when you turbo a VG34? I don't know anyone that's done it so I don't know what the limit is. I'm guessing the crank will come apart first. I've been told by many that SOHC VG cranks are short lived when 350hp is exceeded. It is possible to use the forged DOHC crank in a SOHC block but it requires a custom flywheel and messing around with a few things to make it go together. It's relatively painless but I've only done one so far. If you are thinking about building any VG be warned that they are difficult and expensive just to rebuild stock. Many automotive machine shops cannot hold the tolerances neccesary to make a VG live, especially if it's warmed-over. Rebuild parts are also expensive, but then they should last 200k miles."

 

todamax,
that was interesting..if you remember later on, lemme know where you got that info from.

90seblack,
those zx heads are in compton! i'm not sending money to compton. nothing will be coming back to me

this is a great thread to read. i gotta come down to your are sometime this year man. i wanna see your max!

 

I just got a JDM vg off Ebay. I received the engine and it was in PERFECT condition. The JDM vg's have no egr and are the exact same specs as US vg's, which, so they have the exact same power.

The 3.7l kit I've seen was for the Vg30dett, and not SOHC vg's. Boring out an engine for more displacement isn't always the best thing. So you gain a little more torque, you're still going to have a SOHC vg that sucks at top-end power and doesn't rev very well, unless you do lots of head mods and an engine build. Don't get me wrong, you can still do stuff with vg's and make some serious power, however it gets pretty damn expensive. I added up all the parts it would take to build my VG for sustaining higher rpm (as high as 7k) and making power a little higher in the powerband, which involved a lightened/strengthened valvetrain and forged bottom end. Long story short, going by Paeco prices (haven't decided whether I like Paeco or not) it was going to cost something like 6-7k! For that much, I'm able to buy/swap a damn rb26 into my 240z!

 

swap in a VE

 

duh i wanna but a 4.1l chevy inline 6 in mine, will it fit????

(thats still better than hearing about vq and sr20det swaps.) maybe i should drop a v8 in there? maybe a vtec.

jeez im dumb