I was discussing options for increasing the power output of a V35 with a tuning shop specialist I know.
While he is investigating the cost of fitting a supercharger for me (HKS probably) he took me out to the workshop to lift the hood of an old 300ZX he'd been working on. There was an engine I wasn't expecting there with the infiniti logo on it and 8 cylinders.
This particular car he had turboed and it was developing 460 rwhp.
What was interesting was that stock it developed 300rwhp and that it was a relatively easy job to fit.
This combined with the fact that these V8 donor cars can be cut in half in japan and the front half imported very cheaply here got me thinking.
For maybe half the cost of fitting a supercharger kit I could have an alloy 4.5 litre V8 installed.
Tons of torque and oh what an exhaust note with a twin system
Has anyone who may have done this let me know if it was worth it.
Would be keen to find out any information

 

youre going to have the heaviest understeered G35/45 ever. stick with the SC

 

Both are all alloy engines.
I would prefer replies from those who have tried this mod or reasearched the suitability of a mod such as this rather than have people make assumptions
Cheers

 

From what I know it's been done, but only by better known tuner shops or manufacturers with big money to spend. Top Secret over in Japan took a G35 coupe and threw in a 4.5l V8 VK45DE from the Nissan Cima (Q45 here in the USA) and twin turboed it. They said it wasn't easy to get the VK45 to fit in there.

SuperStreet Article on TT V8 G35

For the average enthusiast without deep pockets, doing the V8 swap is most likely cost prohibitive. Would be much cheaper going with a built engine and FI. But if you got cash to blow and time to spare go for it.

 

Thanks for the link dklau33.
I certainly wouldn't be twin turboing the V8 but leaving it NA.
Without having to squeeze two turbos and all that piping maybe the engine itself would fit in OK.
To S/C a V35 over (down) here would cost $10,000(aussie dollars) using Vortec while an APS TT kit is $15,000 fitted plus $2,000 freight to truck my car to APS .
I can buy a half of a Q45 for $2,000 plus the mechanic felt another $2,000 to get it fitted in the car.
So you see why I would like to find out if it is feasible from someone who has done it.
If he could squeeze this engine between the strut towers of an old 300ZX and then build his own turbo kit for it and fit that too then the G35 V8 should be do able and be a reasonably quick and torquey ride.
While the stock V8 only produces 300rwhp that outright number does not show how great in the midrange this engine would be.
Cheers

 

For the prices you are saying then maybe doing the VK45 in the G isn't such a bad idea. But you have to remember all the time and labor it's going to take to make it work. It's not a trivial matter. Hopefully you find someone who has experience doing this and can get a better idea of what you could be in store for. Good luck.

 

the swap can be done and the mounts are allmost the same. I met some people that have done it but i am in america. florida gets down n dirty with that. But a 2jz turbo swap is better n in the long run u will be able to produce crazy horse power without touching the internalls. i am going through that myself right now

 

There was a guy on my350Z I think that did this with the Q45 motor, and a guy that's definately on my350Z doing this with an LSX monster of a V8. I'm very interested to hear the results, I should go back and check his progress. The weight for the LSX swap was not an issue, something like 50lbs heavier than a 3.5w/turbos and it sat further back I think, but don't quote me. I say do it! Find the right shop that really WANTS to do this, for those prices on materials an install w/ issues would be worth it as long as it's a reputable shop that's not trying to screw you. I had an engine and transmission swapped into my Caddy for around a grand and they had lots of wiring and front suspension issues to deal with, figure with a ton of issues it probably wouldn't be more than 3 or 4x that much- still less than FI.

 

It is illegal [on the street] to install a larger displacement engine in any car newer than 1989*.............Federal Clean Air Act as more displacement means more emissions at idle and cruise. Superchargers are sometimes exempt because they don't affect idle or steady cruise. Bulk of driving.

Also engine swap must be the same engines as used in family something that was sold as a G35 engine...........their is a waiver procedure if you have EPA test emissions and they are less or equal to as build year engine...........newer ULEV swaps might be ok? Check with EPA.

 

The OP is in Australia so I dont think this will apply to him

 

Yeah that sounds plausable, but it's done all the time. I assume they just get their inspections done at the same shop that did the swap.

 

its perfectly legal here in australia to do the 4.5L swap.. all you have to do is get an engineer to look it over and write a certificate of safety, which might cost you $1000 or so.. actually you should consult them before the build

check out www.skylinesaustralia.com there's someone on there (NA_R33) who put a 4.1L V8 into an R33 GTS he might be able to help you out a bit also

cheers,
Warren

 

Other than the coolness factor... I'm wondering why you want to this and not buy a car such as a vett with a V8 in it already. Especially going NA. To each his own or no?

 

there are no RHD vette's in australia unless they're imported and then converted

for that price they are certainly not value-for-money

plus, the infiniti/nissan is a much better car in my opinion! (i own an '86 vette, and an '03 V35 here in australia)

 

Why not get a Holden Monaro??? Corvette engine, 4 seats, fully independent suspension, unbelievable mod potential and national pride for you all in one package. Cam and tune alone nets 100hp