vg30 in a q45

[rps13dn]

has it been done? im starting this project in november any help tips or advice would be greatly appreciated

[MinisterofDOOM]

Why? The VH is absolutely superior in every conceivable way. There's nothing to be gained from putting a VG in a Q.

[elwesso]

why not go with an ESSSS ARRRRR? Lighter and easier to mod...

Or, we could swap in a heavier motor with 2 less cylinders thats arguably more of a PITA.

regardless, the logic escapes me.

[Rex]

Not been done as far as most of the "Q45 regulars" know. I've seen 2 swaps that I can recall, an old ebay link to an auction for a Q45 with a Chevy V8 (can't recall if SB or BB) and the RB25DET swapped Q45 of midnightsliding.

What's prompting this swap idea?

[maxnix]

Wow! Retro mobile. If you are talking about an FGY33, they came that way in Japan, or later with a VQ.

[Q45tech]

The Clean Air Act prohibits installing an OLDER year engine into a street vehicle, even if the displacement is smaller. Also the engine must have been available in that model year for sale in US.

If you can't drive it on the street WHY?

[Raxephon]

The Clean Air Act prohibits installing an OLDER year engine into a street vehicle, even if the displacement is smaller. Also the engine must have been available in that model year for sale in US.

If you can't drive it on the street WHY?

So the original poster couldn't put a VG30DE out of a 1994 300zx into a '89-'94 Q45?

[Rex]

So the original poster couldn't put a VG30DE out of a 1994 300zx into a '89-'94 Q45?

Not per the "letter of the law" of the Clean Air Act.

[TBrack]

the newer infiniti v8s are better on gas with more power and less emissions, thats what you should throw in the old girl not some old underpowered v6

[rps13dn]

I can care less about the Clean Air Act. if that was the case i wouldnt ask about the swapthe q is going to be fully gutted sitting on 16x8 A.R.E. meshys jic coilovers I need i small power full engine to stick into the empty engine bay i have a vg30dett sitting here so i was wondering how whould that work but since u guy say its dumb ima go a different way what would u guys suggest

[maxnix]

I can care less about the Clean Air Act. if that was the case i wouldnt ask about the swapthe q is going to be fully gutted sitting on 16x8 A.R.E. meshys jic coilovers I need i small power full engine to stick into the empty engine bay i have a vg30dett sitting here so i was wondering how whould that work but since u guy say its dumb ima go a different way what would u guys suggest

Pretty brave statement for someone in LA.

I suggest "u guy" check out the local community college for a remedial English class so you can communicate effectively and enhance your chances for future socio-economic advancement.

[TBrack]

rb26 would be a good bet

[elwesso]

still not understanding the logic behind ditching the VH45? No 4 or 6 cylinder is gonna beat it in HP or more importantly torque out the box.

[Haitian_King]

why not go with an ESSSS ARRRRR? Lighter and easier to mod...

Or, we could swap in a heavier motor with 2 less cylinders thats arguably more of a PITA.

regardless, the logic escapes me.

SR? What's that?

[Raxephon]

SR20DE

[rps13dn]

ok guys ur not going to like what im about to type next but after doing some research i desited to go with the vg30dett mainly because theres more aftermarket part available for the vg and its to much work making the vh 5speed

sorry guys

[elwesso]

just out of curiosity what is your goal with a VG30DETT? How much HP? Remember you're going to have to make quite a bit more power out of a VG and the car is going to be way front heavier because the VG weighs a bunch more..

Honestly, if you want to go the easy route and not mess with a VH45 go with an LS1... At least thats only 1 step backwards vs about 3 with a VG.. The VG is a great motor, but you'll even see twin turbo Z guys taking it out for other motors.

[rps13dn]

whats the weight on both engines

[Haitian_King]

whats the weight on both engines

I think the VH45DE is about 500 lbs.

[elwesso]

I think the VH45DE is about 500 lbs.

yep, and the VG30DETT with all its associated accessories and stuff weighs about 650-700lbs.

[Haitian_King]

yep, and the VG30DETT with all its associated accessories and stuff weighs about 650-700lbs.

Wow. VH's rule!

[rps13dn]

i also have a ka24det last dyno pull out 450 what if i drop that in the q

[qship96]

i also have a ka24det last dyno pull out 450 what if i drop that in the q

450 peak short term HP number on dyno and LONG TERM reliable, DURABLE real output are two different concepts.

Still a poor choice for the heavy Q, it is torque you need to handle the weight, not horsepower. No substitute for cubic displacement.

If you are bent on re-engineering a motor transplant into the heavy old Q platform, I suggest to go to a larger rather than smaller engine than stock,maybe using a brand new inexpensive GM high performance crate motor in 5.7 liter or greater displacement.

[rps13dn]

how do u go about making the vh45de 5 speed clutch flywheel driveshaft etc.

[marksport]

how do u go about making the vh45de 5 speed clutch flywheel driveshaft etc.

Get the adapter plate. I know of 3 guys that have already done this.

[Rex]

You really want to talk to the folks that frequent NICO's VH sub-forum

[ViruzOne]

What about a VK45DE off a F50?? 340HP stock! all motor! doesn't sound too bad. .

I mean FGY33s came with the VQ30DET in japan, and the Y34 Gloria (02-03 M45) came with the same VQ30DET and also a VK45DE here in the states, So the mounts should be close or about the same shouldnt it? Wiring would be a bit** tho!

Well at least I see that with toyota and the LS400, SC400/300, GS400/300. The engines will swap back in forth with some mods. 1uz, 2jz, 1jz etc... Nothing out of the ordinary expect i hear wiring is a bit**. lol

[elwesso]

in all reality VH45s make as much power as VK45s do with a chip. VK45s were over rated and VH45s were underrated.

[qship96]

in all reality VH45s make as much power as VK45s do with a chip. VK45s were over rated and VH45s were underrated.

Not to mention, the VH45 was over-engineered and overbuilt to last, whereas the VK45 is proving to be under-engineered and developing major wear problems early in life { oil burning and therefor loss of compression and power}

I bet by 75,000 miles, the average stock VH is producing MORE HP/Torque than the average stock VK due to the above mentioned difference in build quality.

[Q45tech]

"Underengineered" ?

I think not, it is much easier to over build [over spend] for longevity than to cost control an engine so that it just survives warranty pr 100k. Too expensive if you make a mistake and end up replacing engines like Nissan found out in 2.5, 3.5, and 4.5.

Saving $360 on a VK means only 1 in 25 can warranty fail to breakeven.

They are still ahead of game but on certain [ manuals] G35 and 2.5 not so sure.