OK, from what Ive seen there are two ways to increase displacement on the vg30/33: Stroke kit (3.0 to 3.2) and vq45 pistons (3.3 to 3.4) but i haven't seen any one do both... essentially 3.6.

my current project is a vg33e to er in a 94 D21, but i might atempt to bore, stroke and super charge my extra vg33e for a grand total of VG36ER !!...

my intentions you ask?? ... Honda KILLING D21

any input would be great..

Lots of money to beat a Honda?? that is my input.....

A stroker as you say from 3.0 to 3.2 + an overbore to a 3.4 does not equal 3.6It is actually 3.54 if using a 93mm bore and a 87mm stroke.

Next question why do all that to beat a honda??Sure I love sleapers! I had a chevy small block in a Volvo 240 Wagon. I also built an externally stock appearing b13 that ran 12.2@ 117mph with over 300whp (don't remember exact figure) Kevin at Performance Autosport could tell you.My opinion on the stroker kit is it's not worth the money.add BOOST to what you have now; vg30 or vg33.but just my opinion, you are more than welcome to disagree.

edited b/c I did not mean to come across wrong.....Modified by bimrtech at 2:37 PM 12/2/2008
Modified by bimrtech at 2:38 PM 12/2/2008

He's right, boost is the best bet...cheapest as well.

mtcookson is working on doing a VG38...not many details are known...but I can't WAIT!!!!

search for his thread (I think he made one here...) or just email him.

Keep us posted and good luck!!!

There aren't any stroker kits that I know of for the VG30/33 except for maybe Paeco but I've not heard of anyone getting a stroker kit from them.

Luckily... you don't need one. The VG33 has very thick cylinder walls that will actually allow you to bore it out to 3.8 liters. If you're aiming for 3.6 liters, just bore it out to 96 mm, get custom pistons, and you'll be at 3.61 liters. I'd also have the pistons made to accept the VG30DE(TT) wrist pins so that you can use DE(TT) rods for good availability of aftermarket rods.

I used the data from the JUN kit for the de engines. It is only 13k!

I could not find one for the vg33http://shop.edoperformance.com....html

Boost....the ultimate displacement replacement.......

ok, this is what i have... 94 d21 with vg30 + 4x4 drive train, vg33 form 02 pathy, m62 S/C from 03 fronty.

i was intrested in the stroke kit because it will compound the bore job, plus, combined with the m62, will help with the low end for off roading. i dont want to turbo due to loss of low end and quick throttle response. i live in upstate new york so this is my "winter vehicle" it needs to have even, controleable power unlike a turbo's "power band". on the other hand i would like to pull up to a light and waste pritty much any one who is sitting there. you have to under stand that alot of ignorants as i like to call them, live in this area. the kind of people that buy "cold air intakes " that just suck the hot air from the cooling system. or swap there brand new car there mommy boght them for some rusted out pos honda because thats what some one else has. as the truck sits, its not a dog 0-60 but its defiantly not a 300zx, reason being .... 4500 pounds vs 3000.

vg38 plus stroke = about 4.0?

other thoughts...

which vg heads will accept the biggest valves... not witch one has the biggest valves, because that's the 33 i believe but witch hast the most unneeded material that i can grind away to fit the lagest valves i can find?

how much boots (via s/c) can i give the engine if i leave it at 9 to 1 ?

best cam for s/c?

im not looking to replace displacement with boost, im looking to combine the two...

yes i know the 94 d21 v6 4x4 stock does not weight 4500 lbs, when i noticed rust starting to form on the frame, i reinforced the entire frame from about the drivers door all the way back to the bumper with a custom box frame around the original box. put me to 4500 at the weitgh station.

in a hurry so pardon the grammar.

project has been put on hold due to weather, its been cold as hell here. i will post when i get some work done

Sorry for the delay.

Unless you can find someone to do the stroker setup I would just stick with the bore, especially since that stroker setup could get very expensive very fast. An SOHC VG with a big bore like that is definitely going to be a low end torque monster, especially with a supercharger and proper cams so I wouldn't worry about getting the displacement that high.

As far as valves go, the best you can do is 1mm oversize on both intake and exhaust. You can get those from Ferrea.

As for the supercharger... I highly recommend staying away from the M62. Its already undersized for the 3.3 so getting it up to 3.6 or greater is only going to make it worse. If you're going to go with a supercharger I highly recommend to at least get an M90 like those equipped on the Pontiac Grand Prix GTP.

I would also reconsider the turbocharger route. If setup correctly you can have a turbocharger setup that can act just like a supercharger. I had a Maxima that I turbocharged and it was completely linear and controllable, no major spikes. Same with a Z31 Turbo that I have. The most important thing is to size the turbo right. For your setup I would go small for quick spooling and low end power, just big enough for the power you're looking to achieve. Proper cams will also help this further. One thing to always think about when you want low end power but don't think a turbo can do it is... turbo diesel trucks. Tons of low end power with instant response. Big engine, small turbo. It can definitely be done.

What are your power goals, besides good low end of course? Max power you're looking to achieve? With that I can help design the s/c or turbo setup even further.

As far as the compression ratio goes, 9:1 is just fine for boost. There are plenty of guys running high boost on 9:1 setups and even daily driving them plus it will also help out your low end power goals.

bimrtech wrote:I used the data from the JUN kit for the de engines. It is only 13k!

I could not find one for the vg33http://shop.edoperformance.com....html

thats the stroker kit i was referring to.

what is the largest bore pistons i could get without custom ordering them? wiesco has a form that you can fill out for ordering pistons but it has a lot of options that i don't understand.

the turbo/ supercharger thing is more of personal preference.. everybody has turbos for one and for two headers that will fit in my engine compartment to accept a turbo and clear my 4x4 drive line is going to be a pain.

thanks for the info on the valves that helps a bit, i would really like to know which cam to get and a link to the website, because i cant seem to find any thing.

with the supercharger, i already have the m62, and i like the fact that it bolts on with no moding, ive looked at the m90 just not shure how to fit it in there and took up the throttle body to it. witch brings me to another question, is the stock 3.l throttle and maf going to cut it? im trying as hard as possible not to modify the original wiring harness.

as far as power goes: 3.6 was just a number i though out there, im looking to go as big as possible so 3.8 would be great 4.0 stroker, even better. for numbers id like at least 350 400 hp and 450-600 ft/lbs

this will be a daily driver, and i want to carry over the reliability that it already has. it currently has 170 K on the original clutch and most other parts, i can go out and slam it though every gear in 4x4 in any weather conditions, park it and in the morning when its -10 deg out it starts up better than most newer cars and is ready to go do it again, its been down four-wheeler trails, in creeks, driven though 4 foot of snow, had 1.5 ton in the back, and has pulled more cars out of ditches that your average tow truck. that kind of reliability is almost a necessity.

im pretty sure that most large diesel trucks have trubo setups to move their torque curve more mid(2K) to high(4k)end.

Ahhh, ok. That stroker kit won't work without many headaches getting everything lined up. The snout is slightly different than the VG33's as far as length goes but most importantly, the oil pump used on the DE(TT) is basically thicker. With some modification you can make the DE(TT) oil pump work but then you'll have to worry about all of the accessories. If you used the VG33 crank pulley it will be spaced outward a little bit meaning it will no longer line up with the accessories, they would have to spaced out equally. Another option would be to use the DE(TT) crank pulley along with those accessories but you'll probably get into further complications there. I know the alternator and a/c bracket will bolt up to the VG3xE block but the power steering pump bracket won't work as it mounts to the head.

Then of course there is the price tag on that sucker.

I personally recommend just to go straight to custom pistons. The pricing isn't going to be that bad and that way you'll know its right. Easiest thing to do would be to send a VG33 piston to a company and tell them to make it bigger. I would also have them make it to accept the VG30DE(TT) wrist pin so that you can use DE(TT) rods. Most will have that wrist pin size on file.

Everyone has turbos because they are better. You are right though, that is the one downside to them, a turbo setup will take a bit of work to get in there.

Looking at your power goals... the M62 will not cut it. Like I was saying before, it is already too small for the VG33... to try pushing it up to 350-400 hp on a 3.6+ liter V6 is going to be rough. It will be putting out some major heat and will likely decrease reliability heavily. The M90 is going to be your best chance for those power goals. Another option would be a centrifugal supercharger. One of my least favorites of the forced induction variety but they are quite efficient, extremely linear, and pretty easy to setup. Only downside to the linearity is it isn't going to have the low end that a turbo and positive displacement supercharger is going to have.

For those numbers you want, 3.6 should be fine. Technically... 3.3 would be fine too. I actually know of a guy who did a smallish T3/T4 turbo setup on a VG33 and at 13-14 psi made nearly 490 ft. lb. torque at 3,800 RPM.

With proper cams and the higher displacement that torque band should move a little lower. With the M90 and the 3.6 the low end torque should be pretty... well... scary.

For the cams I would go to a company like Isky Cams. You can call them up, tell them what you want (power, location of power, etc.) and they should be able to grind a pretty good cam for what you want. Be absolutely sure to replace all of the lifters with brand new lifters when you do that or you will ruin your new cams.

I would measure the stock throttle body. I want to say the popular VG upgrade is a ?70mm? TB off of a 240SX if I recall correctly. If it is smaller than that I would upgrade. Those upgrades are rather easy so I wouldn't worry about that part of it. The MAF on the other hand... that one I'm unsure of. I've not seen what the limits are on the truck MAF's and am unsure if it uses the same MAF from other VG3xE equipped vehicles. For you power goals it will be safe to assume that you'll want to upgrade to the N62 MAF from the Z32 300ZX. If the plug isn't the same you simply have to splice in a pig tail harness for the Z MAF into your truck wiring harness. Its very easy to do, I wouldn't worry about it much.

The thing that is going to be a bit more difficult is the tuning portion. Have you decided how you want to go about tuning it? I highly recommend Nistune but there are some other good options out there.

this is gonna be shot i will finish it up tomorrow i have to get to bed, but i'm going to use a vg30e crank form a pickup so i can use all the stock accessories, there eliminating the headache of major wiring, power steering and a/c changes, the harness that is on the 33 is getting **** canned except for the connectors them selves and and a couple inches of wire, a stock 94 pickup engine harness will be spliced to the 33's connectors, this should allow me to swap the engine with out touching the body harness.hard body's have one big bunch of connectors in the font where the engine harness hooks to the body harness so that part is easy. the maf of the 300 should have the same signals, and i oculd beable to afix my tps to the 240 tb so no biggie there. do you know if the D21 with the KA24DE has the same tb as the 240 with the KA24DE? the truck maf sucks by the way, go check it out in the junk yard some time you will get a kick out of it. as far as nistune, ive checked it out, but there is no garentee that it will work with my ecu. i will probably pay the big bucks to have a guy in Rochester dynotune it, saposto be one of the best

just to double check, the vg30DEtt rods will work int a non D vg correct? i ask because Eagle sells a set of H Beams that they rate for 1500hp that are cheap as hell ($600). what do you think?

http://www.eaglerod.com/2008%2....htmlPage 82, its kinda hard to read but its the top one in the Nissan list

Go Scat... costs less and is said to be of higher quality by many people: http://store.summitracing.com/...w=sku

More info here please....

I actually know of a guy who did a smallish T3/T4 turbo setup on a VG33 and at 13-14 psi made nearly 490 ft. lb. torque at 3,800 RPM....

I have been looking into possibly turboing mine, but havent figured out all the details of it. STS makes a rear turbo that I have been considering but I think there is more to it than simply bolting it on and letting it fly. Only looking for 5-10 psi for a little extra. Its currently a N/A, thinking you need more fuel and a replash when going from n/a to boosted, or am I mistaken?

Nitewulf wrote:More info here please....

I actually know of a guy who did a smallish T3/T4 turbo setup on a VG33 and at 13-14 psi made nearly 490 ft. lb. torque at 3,800 RPM....

I have been looking into possibly turboing mine, but havent figured out all the details of it. STS makes a rear turbo that I have been considering but I think there is more to it than simply bolting it on and letting it fly. Only looking for 5-10 psi for a little extra. Its currently a N/A, thinking you need more fuel and a replash when going from n/a to boosted, or am I mistaken?

You would be correct for the reflash.

For your fuel, you can just get a nismo fuel pressure regulator or something cheaper. They're usually not expensive.

I would get a bigger header-back or cat-back exhaust and then bolt the turbo up. You'll get better response out of the turbo that way. You'll also be letting your engine breath better.

For 5-10psi, you shouldn't need to lower your compression ratio or need an intercooler but I would do both just to be safe.

Everyone I talk to seems to have no clue where to aquire this reflash... any clue? I want the rear turbo application because of the ease of installation. I can do that install without wrestling under the hood and doing major changes ahead of the cats. I already planned an aftercooler to be installed, I have the ability to aquire that and the turbo and scavenge pump for the oil relatiively inexpensively. I do most of my own fabrication, so the plumbing is not a problem either. I have been trying to figure out some of the basics of it, but putting it together isn't a issue. I like to do all my research into something before I try it out. Is the same process I used before designing and fabbing my own throttle body spacer, it has a few differences than your typical run of the mill spacer, but that is a different topic.

JWT does the reflash if I'm correct?

Use the search button or Google it. You'll find it.

Per Jim Wolf technologies.... we are not making any products for your particular vehicle due to the lack of demand.

There went that idea.

O well. It WAS a good idea. Still is actually. You just need to find a computer company that will do it.

nistune, or take it to a specialist

edit:

im looking for 500+ ft-lbs at 1.8-3K.

as an update: there is a M90 of a 3.8 early 90's mustang that has the intake on the right side, im planing on getting one of those. in the mean time im bolting my m62 on my vg30 with no modification to the engine to see what happens

I hope you're planning on running stock boost with the M62.

Hi everyone, I am new here. I just developed a rap in the lower end in my frontier V6 so it is in need of a rebuild. I would like to add a stroker kit. Does anyone know what the max stroke that you can get out of a VG33?
Modified by Strikermike at 12:03 PM 3/14/2009