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S12 Technical Areas => Engine Tech => ENGINE: Exotic Engine Swap Tech => Topic started by: boost addict on 12:49:24 AM / 11-Aug-10

Title: Info Wanted On Vg30dett Install
Post by: boost addict on 12:49:24 AM / 11-Aug-10
I have searched my but off on information regarding a VG30DETT swap.  No real information exists on this.  Only the same few pics of a few in the engine bay, but nothing about what ever became of these cars.  What ever happened to the guys that put these cars together?  Someone on here has to know more that the search reveals.  I have aprox 90% parts to assemble a complete VG30DETT including turbos.  Sitting....waiting....I need more information about what issues prevented completion of these projects.  I heard something about relocating the turbos due to clearance issues but thats about it.  Ive seen the pics, the VGDE looks no more cramped than it does in a Z32 300ZX.  Please help guys, I am dying to get this project on the go.
Title: Info Wanted On Vg30dett Install
Post by: boost addict on 10:10:14 PM / 11-Aug-10
Nobody?
Title: Info Wanted On Vg30dett Install
Post by: VG33ERGazelle? on 10:19:15 PM / 11-Aug-10
your best bet? strip your s12's engine bay of pretty much everything and start with a clean slate.

drop the vg30dett in there, see what kinda clearance you get, and go from there with your extras.

you'll need to fab, relocate, and fab smore...but if you're adamant, it can be done, obviously.

I had no info on my swap going into it and I got it done anyway, through trial and error.


just dive in feet first.
Title: Info Wanted On Vg30dett Install
Post by: sideways_s12 on 10:30:40 PM / 11-Aug-10
Lol have fun doin this swap there's a reason there's no info on it but hey anything is possible like vg33 said jump in feet first fab measure and repeat many many times lol then be prepared to have a beast that goes in straight lines and doesn't do much else loli looked into this swap when I first came joined and ditched that idea real quick. Have fun and more power to you if you get this done. Please post many many pics along the way tho.
Title: Info Wanted On Vg30dett Install
Post by: Leegamer on 09:20:49 AM / 12-Aug-10
If he could sit it back far enough, the balance could be improved...but I don't know how far it'll go back without making changes to the firewall and trans tunnel, etc.

Title: Info Wanted On Vg30dett Install
Post by: VG33ERGazelle? on 09:31:16 AM / 12-Aug-10
maybe, but honestly I say for us V6 guys, swapping to a vg33e is possibly the easiest swap.

yeah, you could go vg33er like me, but it's the same concept.


the motor fits right in, it uses factory motor mounts, headers aren't hard to find, nearly everything fits in factory places...

all you need is an upgraded ecu/wiring harness [or the factory ecu and wiring harness] and some custom hoses for the radiator you'll have to put in.

Title: Info Wanted On Vg30dett Install
Post by: boost addict on 02:00:15 AM / 15-Aug-10
Im keeping my mind open until I can test fit the motor.  If it looks impossible to fit the turbos, I will revert back to using a NA VG30DE.
Title: Info Wanted On Vg30dett Install
Post by: VG33ERGazelle? on 08:15:39 AM / 15-Aug-10
it's not even just the turbos that make it a tight squeeze, it's the DE part.

but, more power to you...I just prefer to not have to lift my motor out of the engine bay to do work on it lol.
Title: Info Wanted On Vg30dett Install
Post by: Jay on 11:00:23 AM / 15-Aug-10
Quote from: VG33ERGazelle?
but, more power to you...I just prefer to not have to lift my motor out of the engine bay to do work on it lol.

There is NO joking in this sentence. It's waaay tighter than a z32, and personally, the Z32 is way too tight for that motor to begin with.

Having owned and hated a z32, I would never put a VGDE in an S12

If you wanted to do the TT though, remote mount would be the best option...
Title: Info Wanted On Vg30dett Install
Post by: sam31183 on 02:42:19 PM / 15-Aug-10
you could remote mount the turbos into jays probe...that thing is always blowing snails anyways! jk jk jk!

in all honesty...i kind of want to see how close a fit its going to be when you go to put it in....its going to be tiiiiiight.
Title: Info Wanted On Vg30dett Install
Post by: VG33ERGazelle? on 02:48:28 PM / 15-Aug-10
here's how tight it is, google magic. [it was in a thread here. arro posted it in a gen chat thread xD]

(http://img.photobucket.com/albums/v216/arrospeed/S12_Tech/VG30DETT_S12_01.jpg)

that's completely ridiculous.
Title: Info Wanted On Vg30dett Install
Post by: Jay on 02:58:58 PM / 15-Aug-10
Quote from: sam31183
you could remote mount the turbos into jays probe...that thing is always blowing snails anyways! jk jk jk!

in all honesty...i kind of want to see how close a fit its going to be when you go to put it in....its going to be tiiiiiight.

Sigh.... I'm not looking forward replacing it this time though. Either the whole car will go up in smoke, the trans will go up in smoke, Or I'll go straight into a tree.... I should take a video of the shaft play in the last turbo for ya... It's funny



Notice that S12 is a RHD car too
Title: Info Wanted On Vg30dett Install
Post by: VG33ERGazelle? on 03:06:20 PM / 15-Aug-10
yuh, but it's still completely ridiculous.

yeah, the swap is cool and it's prolly pretty damn fast [my supercharger car is ridiculously fast] but still...at least I can get to my spark plug wires. xD



Title: Info Wanted On Vg30dett Install
Post by: Jay on 03:22:29 PM / 15-Aug-10
Quote from: VG33ERGazelle?
yuh, but it's still completely ridiculous.

yeah, the swap is cool and it's prolly pretty damn fast [my supercharger car is ridiculously fast] but still...at least I can get to my spark plug wires. xD

The VG30DE Has the coil on plug. They're between the intake runners. No plug wires to access, and in that car easy access to the plugs.

However, Anything under the intake manifold, and taking the manifold off, your fucking BONED
Title: Info Wanted On Vg30dett Install
Post by: VG33ERGazelle? on 04:00:37 PM / 15-Aug-10
oohhh okay that makes more sense...

but yes, intake and under...you are effed. and with those motors most of the problems like to happen down there anyway lol
Title: Info Wanted On Vg30dett Install
Post by: boost addict on 08:40:56 PM / 15-Aug-10
I have owned 4 Z32s and have dealt with injector problems and such on more that 1 occasion.  An intake pull on a VG is not that hard, plus the engine was designed that nearly everything is at the top or the bottom.  Sure you will have to pull the engine to axcess the turbos, but its no different on a Z32 chassi.  Only the S12 will have more clearance to get under the car.
Title: Info Wanted On Vg30dett Install
Post by: boost addict on 08:56:08 PM / 15-Aug-10
I have been staring at a Z32 parked next to my S12 in the driveway.  The hood on the S12 is longer and wider.  It also has more depth that the Z32 chassis.  From the pic above(one of the 2 I have seen searching), the top of the motor(plenum)seems to fit pretty good.  That being the widest part of the engine, the only areas that would seem to cause clearance issues wuold be the turbos and downpipes.  Ill post some pics of what I have been looking at later.
Title: Info Wanted On Vg30dett Install
Post by: boost addict on 09:32:31 PM / 15-Aug-10
Quote from: VG33ERGazelle?
here's how tight it is, google magic. [it was in a thread here. arro posted it in a gen chat thread xD]

(http://img.photobucket.com/albums/v216/arrospeed/S12_Tech/VG30DETT_S12_01.jpg)

that's completely ridiculous.

Look at this picture.  Imagine: battery, washer resevoir, Z32 fuse/relay box, charcoal cannister, alarm horn, cone filter all not in there.  This would free up a ton of room in the front corners of the bay.  Front mount turbos, and this leaves plenty room for downpipes and IC plumbing.
Title: Info Wanted On Vg30dett Install
Post by: VG33ERGazelle? on 10:01:31 PM / 15-Aug-10
ey man, we're not here to tell you NOT to do it. We're just warning you that it's going to be difficult, it's going to take forever, and you're going to have to flex your fabrication muscles until they ache.

they told me the same thing when I started my swap.

We're not telling you no

we're just waiting for you to git r'done and prove it =]
Title: Info Wanted On Vg30dett Install
Post by: boost addict on 10:14:54 PM / 15-Aug-10
VG30DETT with DS turbo in stock location

(http://i330.photobucket.com/albums/l401/bcain300tt/Project%2085%20200SX%20Notch/Project85notchfitment004.jpg)

Manifold flipped over to move turbo to front position

(http://i330.photobucket.com/albums/l401/bcain300tt/Project%2085%20200SX%20Notch/Project85notchfitment007.jpg)

A box O goodies;)

(http://i330.photobucket.com/albums/l401/bcain300tt/Project%2085%20200SX%20Notch/Project85notchfitment009.jpg)

Tape sitting across CA20E with 4 inches of clearance on pass side

(http://i330.photobucket.com/albums/l401/bcain300tt/Project%2085%20200SX%20Notch/Project85notchfitment014.jpg)

Same tape sitting across my mockup VG30DETT
(http://i330.photobucket.com/albums/l401/bcain300tt/Project%2085%20200SX%20Notch/Project85notchfitment001.jpg)
Title: Info Wanted On Vg30dett Install
Post by: VG33ERGazelle? on 10:18:46 PM / 15-Aug-10
well get started schoolin us then!  
Title: Info Wanted On Vg30dett Install
Post by: boost addict on 10:24:07 PM / 15-Aug-10
Still waiting to get the project started.  I have to sell one of my Z's before I can get started.
Title: Info Wanted On Vg30dett Install
Post by: VG33ERGazelle? on 10:25:59 PM / 15-Aug-10
good luck, and definitely keep us posted.
Title: Info Wanted On Vg30dett Install
Post by: methylprop on 05:06:57 AM / 16-Aug-10
Here is a site that might help you. you can also you tube (Nissan 300ZX Z31 VG30DETT Swap Part 1) and (Nissan 300ZX Z31 VG30DETT Swap Part 2) if that helps at all.
 I'm rooting for you 100% man. I started to do this swap in my SE last march and backed out.  

 
http://forums.nicoclub.com/vg30dett-into-1...sx-t187589.html (http://forums.nicoclub.com/vg30dett-into-1989-240sx-t187589.html)