Hi all the whale is planning for a major engine change... just wanted to know what you guys think as i need expert advise....

As you all probably know I am working on taking down those skylines, 200sx, wrx, etc... with my magna and i was thinking of the following thing to do...

1. Whole engine conversion to and i quote from GOOD PERFORMANCE from Yanora "3.0L MIVEC engine from the states" change of internals polish heads, etc...

2. Twin turbo... first turbo hits in at 2 and half Rev... and the second hitting in at three hundredth of a second later so almost at the same time... and a second turbo working on a switch... so normal driving will be with only the singel turbo...

3. buying a VTEC controller as from what i know MIVEC, VTEC and VVTI do almost the same thing (but dam hondas VTEC are the strongest)... and with the VTEC contoller i would be able to reset when MIVEC hit in, I set it at higer rev... so practically when turbo starts kinda dying down... MIVEC hits... so therefore ill have like a third burst of power....

4. and of course the basics.... turbo back exhuast, a new ECU, etc...

Please tell me what you think of what im planning to do...

Honestly, and don't take this harshly, I think you're making things too complicated for yourself.

Doing what you propose, even assuming it was all possible, will cost you an absolute fortune and you won't end up with much more power than you would have if you took your existing engine, added forged pistons and flowed heads then bolted two turbos on, one per bank. This configuration alone is good for well over 350kW at the wheels and will guarantee you a low 12 second pass.

BTW, the turbo setup you are proposing, which is basically a sequential turbo setup, is fraught with problems... sequential turbo configurations always are. It's very hard to get a smooth transition from one turbo to the next because their boost curves and their effect on power is so different, by definition.

Also, you're unlikely to improve things by altering the MIVEC switching point. Just about all the piggy back and probably all of the full replacement ECUs can alter the MIVEC/VTEC switch point but unless you're actually changing cams you'll find the factory setting is on the money.. at least I've never seen anyone say otherwise.

MIVEC on boost is very hard to tune and manage. just ask anyone that has boosted their VTIR. very hard but not impossible. but there will be complications, seeing as it is an implanted engine, and boosted.

what engines are you considering?

Yeah, forget about the Mivec. It's designed for N/A max gains. I'm not saying that it's not worth using but when you're looking at 3k just for the engine then that's a fair whack from a budget for a TT kit that's probably worth 10 - 11k without engine strengthening and other dramas you will experience. Also, why use Mivec on a smaller engine when the 3.5 with the right turbo cams will produce plenty of power? I guess it might help drivability while on the lower cam but once it kicks in if you're running heaps of boost, you might have some fun as it changes over.

Why get the engine from the states when there are examples in Australia? Have you decided on a budget? The Mivec / turbo setup will need a new management system.

Well ive did some research on the weekend... and Good Performance was happy to do the engine conversion and putting the twin turbo than send it over to X racing to do the pipes and intercooler and the comp work and VTEC controller... they quoted me about 35-37K and my car will be off da road for longest 2 weeks...

Well they told me that the MIVEC engine are very hard to find in Australia... well thats only 1 place i went to... be going 2 Ruf performance this weekend, than ADVAN, PAC Performance etc... might even call up RPW....

35-37k?!??!!! Are they gold plating the engine too? or does it come with self tapping beer kegs? ask around dude...... 35-37k, you could buy an EVO 5 or 6 for that price!!

also, start researching and finding out EXACTLY what engine/s you are looking at. what it can/cant do, limits, strengths/weaknesses, further mods available. cos if you go to these places that you have mentioned, they will try to get as much $$ out of you as possible...... so if you go armed with some sort of knowledge they may not be so eager to COMPLETELY rip you off..... otherwise, if you go there saying 'i just want my car to go fast, and make that psssscht sound', all they hear is $$$$$$$.

i rekon its a sick idea but have you thouht about the extras

i.e better brakes. if you upgrade all your engine and have some massive 300kw monster and have stock brakes then good luck getting it all engineered.

also have you thougth about suspension as also you will have engineering problems.

best of luck but im with the difference on this one buying an evo would be an option on par

oh also you might want to look into box strengething and an LSD

cheers sheriff

They think you're a tyre kicker if they're are giving you a price like that. You will need more than a Vtec controller to run the engine and 2 weeks - as if. Just to be different doesn't justify this. You wouldn't be the first to turbo the car nor would you be the first to convert to Mivec. Buy an Evo, money far batter spent.

But hey, it's your hard earn't dollars. You might want to ask Velocity and Booya how they felt about shelling out the pennies. Booya has spent way more and has tried to sell the car several times.

What component is the majority of the expense?

yeah!! 2 weeks!!
dont want to sound like a downer, but 2 weeks would be hardly enough time to swap engines! let alone install and tune whatever STANDALONE ECU you will need, not to mention any of the countless other complications that WILL arise....

but hey, if i had the cash, i'd do it!! or maybe just buy an EVO......

2 weeks is when i put my car in... they will build the engine seperately first... and when the engine is done then they will call me in 2 do da engine swap and other things...

I like this body shape... i want 2 keep it... so Evo out of the question LOL...

Yea i may have to do some more research before i go to those places hm... well thanks for the advise guys keep em comming... any advise is good advise....

Dont wanna sound rude, but I think your gonna regret it...
Nice idea and would be an awesome car etcetc, but I would bet youd end up spending not far off $50k with engine, install, brakes, suspension, rims, tyres, computer, multiple tunes to get such a complex system smooth, gearbox (the stock will disintigrate before long under that power) and the list goes on. Also is your ride AWD? Cause it will be a pig to drive with 300kw+ through the front wheels....
You wont get even 1/2 the money you spend on it back if you ever sell it.
Insurance... HAHAHA... good luck.
For that money you could get a very nice car, that would be HEAPS nicer for normal driving, cheaper to insure (and possible!), and it would still be a very quick car!
But its your cash... I admire you for wanting to do something unique, but I find it very hard to justify all that money...
Good luck on whatever you decide to do! :thumbsup:
Pete

3 litre MIVEC motors come with tiptronic auto attached. Not manuals. If you want manual transmission, and I assume you do, you will also need a custom flywheel because the holes in the MT flywheel don't match the MIVEC.

I think that forced induction is a sound idea with a MIVEC motor, but be prepared to change the upper cam profile to match the turbo boost profile.

Minimum exhaust would be 3".

And as others have posted, there are many other gotcha's out there! Not the least is that there is naff all known about the Jap Spec 6G72 MIVEC engine.

But even in N/A, the MIVEC spins happily to its peak power at 7,000 rpm :D

hmmm rethought what i sed

spend the money, get a beast and go nuts!

honestly, do it, you will be the first HERE to have a twin turbo mivec (VVTI controlled) magna.

but as i sed b4, you need to also think about other items, i.e brakes, suspension, tyres, rims, lsd, engineering, gearbox, driveshafts, ecu, tuning.

all that alone there your talkin 15-20g's if you get the real good quality stuff

hmmm rethought what i sed

spend the money, get a beast and go nuts!

honestly, do it, you will be the first HERE to have a twin turbo mivec (VVTI controlled) magna.

but as i sed b4, you need to also think about other items, i.e brakes, suspension, tyres, rims, lsd, engineering, gearbox, driveshafts, ecu, tuning.

all that alone there your talkin 15-20g's if you get the real good quality stuff

i agree, if ur gonna perform this sorta thing, u might defanately wanna consider about suspensions, breaks etc... and u most defanately need an LSD and a heavy duty clutch and more parts than jus engine mods. but by all means, do it!!

wats better is a twin garrett 12 turbo setup, woah.... but again, u need LSD, heavy duty clutch and fly wheel, better breaks, and more stuff which im not bothered mentioning :D

i agree with redav, their trying to rip you off big time mate!!!

if it was me the title wouldn't have been "what you think" it would of been "have a look at the rediculous price these guys quoted me!"

you should be able to build 2 twin turbo magna's with 37 thousand, one for you one for me then we can go to the casino and put $5000 on black lol

DO it for SURE!!!!

If u could get it to work, it would be one of the most unique and awesome cars.
Cars will only spin when pushed. there are 1000kw gtr's out there than still run on the roads.

if u got the money and wanna do it then i agree.
If i could i would as well, its all about originality....

and this would be original

do it but an lsd will only help so much, awd??, research hardcore before u do this, so u can lead mechanic find if they will bull**** u etc, being naive could cost you up to 15k.

1. I live in the "states" we do not have 3.0 Mivec engines here.

2. You can not put a turbo on a switch, that proves you sir have 0 idea what you are talking about.

3. As others have said Mivec and boost will not get along. Variable valve timing is meant for NA gains.

I suggest you do a lot of learning before you do any spending. You will regret it later if you don't.

there are two 3.0lt mivec engines up on the gold coast and one up at brissy and rpw has one...

but yeh wouldnt turbo it, maybe get a DOHC 6g74 then fully build that up and turbo it,

if u wanna go all out do a quad turbo set up

1. I live in the "states" we do not have 3.0 Mivec engines here.

2. You can not put a turbo on a switch, that proves you sir have 0 idea what you are talking about.

3. As others have said Mivec and boost will not get along. Variable valve timing is meant for NA gains.

I suggest you do a lot of learning before you do any spending. You will regret it later if you don't.

1. well now i learnt something new... there aint 3L Mivec engines from the states... thanks...

2. turbo on a switch maybe a stupid thing to say... but ay its just an idea... may be wrong may be right... thats why im asking the experts... dont kill for it...

Suggestion Taken I will be doing more research on things he has told me and more research on my ideas... but thats why im asking people here on what people think... but in the mean time dont kill me for what i say... just trying to be unique now tell me ish that sin?? DAM BE COOL....

Ehh don't mind me. :cool: Just do some research.

there are two 3.0lt mivec engines up on the gold coast and one up at brissy and rpw has one...

but yeh wouldnt turbo it, maybe get a DOHC 6g74 then fully build that up and turbo it,

if u wanna go all out do a quad turbo set up

I KNOW BOTH PEOPLW WITH THE MIVECS AT GOLD COAST

1. well now i learnt something new... there aint 3L Mivec engines from the states... thanks...
There are but they weren't native to America. There's been a couple auctioned off on eBay.


thats why im asking the experts... dont kill for it...
Neither are we but some ideas just aren't reality, now a supercharger on a clutch is more plausable.


I KNOW BOTH PEOPLW WITH THE MIVECS AT GOLD COAST
Import yards or car owners that have converted?

I ain't no mechanic nerd, and i don't know what the diff between VTEC and MIVEC is, except for the fact that one's by mitsubishi and one's made by honda. But i'm lead to believe that variable valve timing engines can still be turboed. I mean, look at the horodes of boosted civics and rice hondas in america. I'm sure there are a few eclipse's that are turboed too. are eclipses mivec?

yeh eek they can be turbo'd it is just really hard to tune them

yeh eek they can be turbo'd it is just really hard to tune them

yes..... and you can supercharge it too!! in fact you can have six turbo's if you'd like, but it depends on how much $$$ you want to spend.