View Full Version : how can i get another 25 kw
bloodviper
04-10-2011, 05:23 PM
hey guys
i am trying to get 25kw outta my v6 magna wagon i was thinking pod and extractors and maybe new cams and sum head work
presti
04-10-2011, 05:38 PM
don't bother with a pod filter mate. Extractors, a new tune on 98 and headers would do some work, cams also. Exhaust system will help with un-restricting it a little
bloodviper
04-10-2011, 06:00 PM
has any won delt with rpw
..GONE..
04-10-2011, 06:01 PM
A little more than 25kW is the DOHC conversion..
A few of these are pottering around the forums.. Great conversion although a little pricey and a little harder to find.
SuFz :ninja:
has any won delt with rpw
some have, not very many have been satisfied though.
T_double_U
04-10-2011, 07:00 PM
6G75 engine conversion.
Braedz
04-10-2011, 07:43 PM
6G75 engine conversion.
Cant do that in a 2nd gen. Engine is mounted around the wrong way.
T_double_U
04-10-2011, 08:00 PM
Oh my mistake,i always click 'what's new' and didn't notice it was in the second gen section.
bloodviper
04-10-2011, 08:10 PM
yeah wanna keep stock motor 25 kw doesnt seam much but gonna get my car dynoed first then see what i can do only wanna run 200 hp
bloodviper
04-10-2011, 09:15 PM
any one got a 2 dohc heads
GTO front cut is the right way round, N/A should have dohc, otherwise theres always the twin turbo ones that will gain more than 25kw
bloodviper
05-10-2011, 08:48 AM
i dont wat turbo i wanna keep origanl motor
Braedz
05-10-2011, 08:57 AM
Manual Conversion+ DOHC Conversion+ Full Exhaust System+ Tune = More than the 25Kw you are after.
MadMax
05-10-2011, 08:58 AM
If it was easy to get an extra 25 Kw out of that engine, wouldn't the factory have already done that?
The second gen V6 is a 2 valve per cylinder, short stroke design, it needs lots of revs before it makes serious power. It lacks the instant torque of the later 3.5 engine when you put your foot down. It feels pretty gutless at low revs. Live with it or get a third gen Magna, or do an engine transplant if you want more power and torque.
Madmax is right.
Getting an extra 25kw.. hmmm. Biggest problem against you is the engine design. But if you have money to waste, I would go ahead and find some sort of supercharger that will fit. Otherwise you should be looking at getting a manual TH with a 3.5 in it if you want power.
bloodviper
05-10-2011, 03:54 PM
that is just no point i want 200 hp in my engine na with auto it can be done i have spent thousands building mini trucks becase i can
good for you. A 20 year old magna isn't a mini truck is it.
I reckon its worth rebuilding your engine if you are hellbent on 200hp. Get some custom cams made up and a decent tune and exhaust should get you to where you need. Don't expect it to be cheap though.
-lynel-
05-10-2011, 04:05 PM
there is alot more too it then DOHC heads though the SOHC BLOCK can be used there is a lot of stuff like manifolds both exhaust and inlet that require changing. Power Steer needs changing as well as the wiring loom and ecu to actually run it
I jsut searched around and found a diamante halfcut Though a non turbo gto half cut would be easier to find.
bloodviper
05-10-2011, 04:24 PM
i know it aint a mii truck but being a mini trucker has alot of influence on this car like i am gonna bag it and shave it on sum nice 100 spokes just want it to go abit better
bloodviper
05-10-2011, 04:26 PM
why is a pod filter not so good
why is a pod filter not so good
afaik depending where and how they are placed, the airflow through the maf sensor can be messed up and it won't run as well as it could/should
Because this alone wont net a power increase. Remembering my old second gen, the inlet design was OK and wont be restricting too much. Dont believe everything you read in fast4s
bloodviper
05-10-2011, 04:47 PM
i redone the intake piping on my pulsar made a huge diffrence
i redone the intake piping on my pulsar made a huge diffrence
Really? Please tell me how to do this.
You can't just slap a pod filter on a car and expect gains. You'll need a heat shield and some ducting to the pod filter to get anything other than a loss.
-lynel-
05-10-2011, 05:38 PM
by huge gain you mean in sound? you can replace the inlet pipe to the tb on the 6g72 to get some nice induction noise but you wont net any power. period. I even believe there is a dyno sheet on here showing no difference in peak power when compared to a stock filter (might be for a 3rd gen though)
These engines are notoriously hard to extract power of in NA form. More so the SOHC 12v that we get in our 2g magnas. Wait 6months and you can buy my DOHC Verada i built for probably less then the cost of the conversion haha
bloodviper
05-10-2011, 05:41 PM
how much
bloodviper
05-10-2011, 05:44 PM
well i ran a k&n pannel filter with the pipe replaced with a stainlesssteel one i oticed more power when i put my foot down
MadMax
05-10-2011, 06:46 PM
Perhaps a stroker crank and boring out? Just a thought. lol
Step 1: remove headlight
Step 2: insert huge ram air intake
Step 3: retune to 98 octane and increased air levels
Step 4: rev it like bam bam bam bam bam bam bam and select d for maximum respect.
bloodviper
06-10-2011, 07:03 AM
guys i am trying to be serious
So are we. Unless you have cash lying around (5000 bucks at least) then stop chasing numbers with a car and engine that is clearly going to go pop in the not-too-distant future.
Get a newer engine, or get a newer car. Its that simple
chrisby
06-10-2011, 08:23 PM
100 spoke? That's different.
bloodviper
06-10-2011, 09:47 PM
yeah 18 inch 100 spoke chrome wires
-lynel-
07-10-2011, 03:50 AM
now i see why you need an extra 25kw, its so you can get the car to move with those wheels on haha
jokes btw
unless you're willing to go through an engine or 2 testing the ony way to get 25kw morre out of your 12v sohc 6g72 is NOS. I shoudl say thats the cheapest.
chrisby
07-10-2011, 10:49 AM
And nothing is more cooler than a couple of big dirty nos tanks sitting in the boot.
Red Valdez
07-10-2011, 11:27 AM
i redone the intake piping on my pulsar made a huge diffrence
That's on a Pulsar though. A completely different car.
As members have already said in this thread, items like air intake and exhausts on Magnas are well designed, so you're unlikely to gain much (if anything) in the way of peak power by upgrading them.
If you're looking for a 25kw+ gain you're going to need more than bolt-on mods.
bloodviper
15-10-2011, 07:24 AM
just got a mad payingg job what should be the first things i should get should i get cams and head work
just got a mad payingg job what should be the first things i should get should i get cams and head work
Go and buy a mad commodore.... please :ninja:
bloodviper
15-10-2011, 08:13 AM
it is people like you that make people do dodgy shit becase you dont help you are just a keyboard hero i came on this site to get help with my magna and i get nothing but dick head responses
to be fair, we have all explained this already but clearly you don't want to hear that your engine IS NO GOOD. There are very little off the shelf products for the 12v SOHC 6G72 that resides in your engine bay.
Go speak to an exhaust shop and get a full system made up, you might make 5 kW maximum. Truth is, you have a very old car and no doubt a tired engine. It sounds like you are quite young, which means you will probably enjoy revving the engine. It will no doubt start leaking oil if it hasn't already. Just face it, go and buy a car thats a decent base to start with.
Madmagna
15-10-2011, 09:33 AM
it is people like you that make people do dodgy shit becase you dont help you are just a keyboard hero i came on this site to get help with my magna and i get nothing but dick head responses
No mate, it is people like you who accuse long standing members of being dick heads when in fact if you used both the search function AND read this very thread you would get a heap of information
If you want the chance to stay on AMC and actually learn something, learn to take some tongue in cheek humour and also research (we dont need to sit here searching for you) and dont have a go at someone when all is here in front of you. If you dont want to hang around, keep this up and I will assist you, there is another forum for Magna's where your attitude will fit in fine
Sparky
15-10-2011, 09:39 AM
To get any gains from your motor your going to need first a job that pays very well, and then you can go to a engine rebuilder. So then you can get the engine rebuilt, with performance in mind. Like all the other people say your not going to find off the shelf performance parts for your car.
So you got two choice to build a performance motor or buy a new car. That kinda all your option :)
I like my car so I'm going to get a motor built for it. It may waste all my money, but I dont really care lol I won't see any money back if I do sell or write it off.
So you need a dose of reality :P Sorry but that the truth of the matter.
bloodviper
15-10-2011, 10:03 AM
i wanna rebuild a new motor that is what i am asking i am new to these type of cars i am use to mini trucks suspension work and body not engine mods i am not trying to be a dick i was just saying i dont need some one tellingsaying go buy a commodore
Building a strong V6 engine costs a lot of money (Between $4000-7000 plus removal, plus installation). You are much better dropping in an engine with more power straight-up. Easiest engine to use for this is the 6G72 DOHC V6 from the Mitsubishi GTO.
If you were keen, you could also try using the 4G63T from an Evo 1-4.
Either way, you're going to have to do a bit of custom work it get it in (ECU, wiring, etc...).
Something you want want to ask yourself though - Are you happy to spend the cars value 5 times over on gaining 25kw?
You could buy a 2002 VRX Magna for around $5k, which has about 30kw more power and a much better track record for reliability, modern features (power everything, cruise, and climate), etc...
-lynel-
15-10-2011, 10:18 AM
Its been covered already; and ill give you the benefit of the doubt
Prolly the best bang for buck mod to do to a 12v 6g72 in the 2nd gen is a manual conversion. If you can do it yourself you are looking at maybe 600 in parts depending on the wreckers and maybe 1200-1500 fitted if you go to a shop to do everything for you including finding the parts. A manual conversion will at least allow you to unleash some of the tied up ponies your engine makes. Small gains will be had witha full exhuast but expect to pay 2000 or so for a full exhaust. You would be looking at 2.5 mandrel minimum and large quality muffler or 2 to reduce noise. If you modify the inlet, even prior to the TB i would suggest buying a mappable ecu. They start from 500 2nd hand. Take it to a tuner and ge tthem to play with it until at least its at its best potential. After doing all this you will probably half the most worked 2nd gen in australia because no one bothers. It will be very nice to drive compared to a stock 2nd gen BUT still probably slower then even a stock 3.5 3rd gen which you could just about buy for the cost of modding your 2nd gen.
This is why everyone is telling you not to bother. It doesnt hurt to be different, i have done a LOT to my 2nd Gen but i cut my losses with the 12v and sourced a 24v DOCH engine. factory power is 151kw where as with 25kw more your sohc 12v will still be 140ish kw. The cost of mods above is more then the cost of the conversion, if you are handy with a spanner.
If you want performance look for soemthing more mainstream. falcons, commos, nissans, though you probably cant drive turbo? just assuming.
bloodviper
15-10-2011, 11:03 AM
so the gear boxes are on the same side i need to keep it auto for the wife and is the 24v what model is it out of
-lynel-
15-10-2011, 02:59 PM
well i got a 24v auto out of a diamante halfcut. took me 3 months to track one down. The advantages of a diamante half cut is yo u get all the gear you need plus some of the upgrade stuff like parabolic headlights and twin piston front brake setup. You could get a gto/3000gt half cut in auto 24v but you will more then likley need to import them. They dont bring over the auto's because no one, i repeat no one drives them or they convert them anyways. I was lucky to find the half cut as it was advertised as a TR magna, when it was a gen 1 diamante. just remember to double and tripply check because there are 6g72 12v sohc and 24v SOHC the latter being in the 3rd gen magnas over here. you want a 24v DOHC 6g72 preferably not one from a pajero/ though they can be adapated to a magna as long as you have all the manifold gear, which is different to the SOHC engine.
check out trademe.nz as they had diamante locally delivered and there are heaps for sale.
bloodviper
15-10-2011, 04:44 PM
thanks that is what i was after
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