[belac515]

Has anyone else looked into this?
If so, what can you tell me about it?

I heard about it from a Z forum and started looking all over for information on it, but haven't had much luck. So I thought I would come here.

What it is, is you take the 3.3L VG33E and bore it out and install VH45 (Infiniti Q45) pistons, which gets you 10:1 compression and 3.4 litres of displacement.

It's supposed to be an extremely torquey setup.

 

[dubie2003]

This is the first I have heard of this but it may be a mod that the 300zx guys do. It may be worth surfing their forum to see if they have any info.

 

[mrgrayaz]

everyone talks about it - no one seems to have done it. you can get the VH pistons in 6 packs from some website, but I forgot what it is....

you use the stock VG30DETT crankand rods, and then put the VH pistons on it. you have to them rebushed...Run Cams, headers, and port/polish the heads....they do still sell oversize VG33e valves and supposedly your looking at 250whip with a tune....

Trust me I've looked into it, as I currently make 150 crank HP...but theres alot of talk and not many people who have done it.

 

[mudslinger]

i have heard talk of this but i dont believe anyone has actually done it...yet. may be in progress. but in theory it could work well. or not work well. i have heard a lot about 350z's bored out to 365's.

 

[mrgrayaz]

different engine. Its on my todo list.

 

[nisracer]

sounds like a lot of work for low hp, why not just do a vg30dett swap and call it a day depending on the vehicle, the manifolds and downpipes may have to be fabbed/customized. but it would be much cooler than building a high comp vg imo. those swaps are cheap, and you could get nasty hp easly. the only way i would see an advantage over boosting, is if it could rev much higher then its low 6k ish redline, wich would most likey call for valve springs and retainers, cams etc... all costing more and more, when you could just spend about the same and have a much larger modding potential, and a brouder aftermarket suport.

buy this,
JDM 300zx engine swap motor Vg30dett z32 Twin Turbo OEM: eBay Motors (item 260645405611 end time Aug-10-10 12:58:45 PDT)

then these, and alter them to fit a fronty.
OBX SS321 TURBO HEADER MANIFOLD NISSAN 300ZX VG30DETT: eBay Motors (item 370276060047 end time Aug-12-10 11:31:56 PDT)

 

[belac515]

Not really looking into a swap right now. Just trying to get the pro's and con's of building the engine I already have. I'm not too worried about it right now, but would like alittle more power later on. I still need to finish suspension before thinking about anything else.

 

[nisracer]

boost ftw! lol

but i hear ya on the not wanting a swap, there is always little things that are a pain. thats why i built and boosted my ka in my old 240sx. i had lots of freinds with sr's, 2 ls1's, and a couple 1&2jz swaps, and all of them had harness issues, from injectors that would cut out "serious prob", to insterent clusters not working "anoying prob" lol. but when they are done right without shortcuts, swaps are awesome.

 

[belac515]

Yeah, I have a friend with a 2jz swapped 1st gen celica, one with a RB25det 240, and my best friends right now is gathering pieces for a 13B rotary swap into an is300. When done right they are great, but I really don't want to go through the hassle of doing one. Just hearing them b*tch about it not starting and having to spend hours going over every little thing to see what wasn't done right and having to order parts unexpectedly and having to wait has scared me away for awhile.

 

[mrgrayaz]

sounds like a lot of work for low hp, why not just do a vg30dett swap and call it a day depending on the vehicle, the manifolds and downpipes may have to be fabbed/customized. but it would be much cooler than building a high comp vg imo. those swaps are cheap, and you could get nasty hp easly. the only way i would see an advantage over boosting, is if it could rev much higher then its low 6k ish redline, wich would most likey call for valve springs and retainers, cams etc... all costing more and more, when you could just spend about the same and have a much larger modding potential, and a brouder aftermarket suport.

buy this,
JDM 300zx engine swap motor Vg30dett z32 Twin Turbo OEM: eBay Motors (item 260645405611 end time Aug-10-10 12:58:45 PDT)

then these, and alter them to fit a fronty.
OBX SS321 TURBO HEADER MANIFOLD NISSAN 300ZX VG30DETT: eBay Motors (item 370276060047 end time Aug-12-10 11:31:56 PDT)

Because your missing the point.
you ever try and and fit a VG30DE into our engine bays? Good Luck. It wont happen without serious fenderwell modification. those engines are WIDE. Those DOH Cams gotta go somewhere.

This is an excellent way to get alot of power with NO MODIFICATIONS to our drive train. Pull engine out, put engine in. Hook up to original wiring, ECM, Fuel, accessories, cooling system etc etc. a far different proposition then an" engine swap" from another vehicle... In this case there is no modification needed.

 

[Coldfire1990]

when you run the 3.0 cranks you need to run 3.0 accessory drives and pulleys and what have you.

reuse the 3.3 rods they are already a beautifully made forged rod

the 3.3 and 3.4 will have a very minimal difference in torque if you took both motors and had the same cams headwork headers tune ect. the extra .1 liters arent worth it unless you need a bore and hone and new pistons.

 

[belac515]

the 3.3 and 3.4 will have a very minimal difference in torque if you took both motors and had the same cams headwork headers tune ect. the extra .1 liters arent worth it unless you need a bore and hone and new pistons.

I've heard the exact opposite form more than one source.

Idk though, I really don't know much about engines besides the basics and how to boost a car safely. Once you get into pulling apart the engine and dealing with the internals and all of that I'm pretty much lost.

I'll be honest with myself, I'll probably never get around to doing this. When the time comes that I really need more power or my engine goes I'll start seriously looking into it again. For now I'll just stick to low and slow.

 

[Coldfire1990]

the 3.3 and 3.4 have a 3% difference in displacement and the stroke is the same.

stroker motors are famous for thier torque output as the longer stroke gives the rod and piston more leverage on the crank (like using a breaker bar versus a small ratchet). this action produces a motor that makes more torque

the other way to make more power is to build the motor. and when people are talking about building 3.4's they are building the motors to make more power (horsepower and torque) and they are never compared to a 3.3 that was built the same way, they always compare the new built 3.4 to the old bone stock or mildly modded 3.3.

 

[fusionfronty99]

sounds like a lot of work for low hp, why not just do a vg30dett swap and call it a day depending on the vehicle, the manifolds and downpipes may have to be fabbed/customized. but it would be much cooler than building a high comp vg imo. those swaps are cheap, and you could get nasty hp easly. the only way i would see an advantage over boosting, is if it could rev much higher then its low 6k ish redline, wich would most likey call for valve springs and retainers, cams etc... all costing more and more, when you could just spend about the same and have a much larger modding potential, and a brouder aftermarket suport.

buy this,
JDM 300zx engine swap motor Vg30dett z32 Twin Turbo OEM: eBay Motors (item 260645405611 end time Aug-10-10 12:58:45 PDT)

then these, and alter them to fit a fronty.
OBX SS321 TURBO HEADER MANIFOLD NISSAN 300ZX VG30DETT: eBay Motors (item 370276060047 end time Aug-12-10 11:31:56 PDT)

those DEs are way to wide for the frontier, richard (Frontier2k1) tried to stuff one into his project truck... the twin intakes just were taking up tn much space

 

[nisracer]

isnt the old q45 block sohc, i wonder if one of those would fit?.?.?... that would be cool, i've seen one in 240sx, so i would imagine it would fit in a first gen frontier. but then again, you can fit a vg30dett into them "if anyone would want to that is"

there's quite a few LS1 swapped 240's around here in texas, they are a simple swap with good reliable hp before mods, and react well to just about any mod. that would be awsome to have in a 1st gen frontier! but i then again you would be back at swapping and the OP is'nt intrested in swaps for good reasons.

 

[mrgrayaz]

the 3.3 and 3.4 have a 3% difference in displacement and the stroke is the same.

stroker motors are famous for thier torque output as the longer stroke gives the rod and piston more leverage on the crank (like using a breaker bar versus a small ratchet). this action produces a motor that makes more torque

the other way to make more power is to build the motor. and when people are talking about building 3.4's they are building the motors to make more power (horsepower and torque) and they are never compared to a 3.3 that was built the same way, they always compare the new built 3.4 to the old bone stock or mildly modded 3.3.

3.4 has a much higher compression ratio. a built 3.4 your looking at least 9.5:1 compression ratio verses 8.9:1. Thats HUGE.

isnt the old q45 block sohc

No. It wasnt.

but then again, you can fit a vg30dett into them "if anyone would want to that is"

No. You cant.

there's quite a few LS1 swapped 240's around here in texas, they are a simple swap with good reliable hp before mods, and react well to just about any mod. that would be awsome to have in a 1st gen frontier!

small blocks are much smaller then anything nissan makes

 

[Coldfire1990]

"3.4 has a much higher compression ratio. a built 3.4 your looking at least 9.5:1 compression ratio verses 8.9:1. Thats HUGE."

It is huge but what I'm getting at is a 3.3 and a 3.4 built exactly the same, compression ratio, headwork, cams, intake, exhaust, ect the power difference will be negligable. Agreed? or not?


"No. You cant." :thatswck:

Never say cant or impossible. anything can be done with the right knowledge and tools or money to pay someone who has the knowledge and tools

there is no can and cant. there is easy and hard.

 

[nisracer]

No. It wasnt.


No. You cant.



small blocks are much smaller then anything nissan makes

small blocks= true
but vg30dett into an s chassis= yes sir you can, there is acctually more room in an s chassis than a z32, they are rare, because it is a stupid swap, they are huge, heavy, little and or expensive aftermarket, and they dont make as much hp for your buck as sr, ka-t, rb, 1jz, 2jz, ls1-2-3-etc.... so its normally not even considered. i just figured the swap would be easier since its the same basic block as the other vg motors, so they may share some parts and the harness may be easier to splice.

VG30DETT into 1989 240SX : Hybrids

and the vh45 swap fits easy also, you just have to build headers for it.

YouTube - ‪Vortech supercharged Vh45de s14‬‎

 

[mrgrayaz]

"3.4 has a much higher compression ratio. a built 3.4 your looking at least 9.5:1 compression ratio verses 8.9:1. Thats HUGE."

It is huge but what I'm getting at is a 3.3 and a 3.4 built exactly the same, compression ratio, headwork, cams, intake, exhaust, ect the power difference will be negligable. Agreed? or not?

No. The definition of a vg34e is a VG33 bored out .60 over with VH45DE pistons. and a increased compression ratio. A bored out VG33e.....would a be VG33e bored .60 with....bigger VG33e pistons. AKA same compression ratio. so the VG34 yes is barely bigger displacement wise, but its the increase comp ratio, and the fact that most people build them and put forged VG30DETT everything in them, and run 900WHP on them that makes the difference. The Z guys do this swap all the time - the truck guys not so much.


Nissan put a VH45DE in a Frontier at the Test Track once. They used it to tow tire test trailer. They pulled the 4wd (it wouldnt fit) and ran straight pipes out the wheel wells. Does it fit? I guess if you call that fitting.

But Gentlemen - we are digressing from the pt. VG34e.

 

[Coldfire1990]

No. The definition of a vg34e is a VG33 bored out .60 over with VH45DE pistons. and a increased compression ratio. A bored out VG33e.....would a be VG33e bored .60 with....bigger VG33e pistons. AKA same compression ratio. so the VG34 yes is barely bigger displacement wise, but its the increase comp ratio, and the fact that most people build them and put forged VG30DETT everything in them, and run 900WHP on them that makes the difference. The Z guys do this swap all the time - the truck guys not so much.

dude you are completely missing the freaking point
you are still comparing a stock or mild rebuild to a built motor

VG33E STOCK BORE BUILT EXACTLY THE SAME AS A VG34E

SAME COMPRESSION RATIO compression ratio is not hard to change
want more mill the heads or dome the pistons, want less dish the pistons

SAME PORT AND POLISH WORK

SAME CAMS

SAME INTAKE AND EXHAUST SETUP

WILL PRODUCE ALMOST THE EXACT SAME POWER NUMBERS

if you dont understand the point i'm still trying to make let me know so i can try to find yet another way to explain it because it really has escaped you thus far :comphead: