couple of questions

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GVR40

Passion Fingers
Joined
Apr 4, 2005
Messages
2,415
Location
Gold Coast
ok, i've been thinking a few things through recently, and came up with a couple of questions.
i gotta sell the vr4 as i can't afford to keep it, so i will be using my old car (gsr galant) and the questions i have,
1. will turning it into an 11000rpm 2.1L have much difference on power
2. how do i do this
3. where do i get a 4g64 (what car are they out of) and how much cost
4. what conrods do i need
5. do i need to upgrade the ignition side of things
6. will i need to go aftermarket ecu
7. what is the approx. costs of doing this

i want to keep it naturally aspirated for insurance reasons.

thanks in advance
 
GVR40 said:
ok, i've been thinking a few things through recently, and came up with a couple of questions.
i gotta sell the vr4 as i can't afford to keep it, so i will be using my old car (gsr galant) and the questions i have,
1. will turning it into an 11000rpm 2.1L have much difference on power
2. how do i do this
3. where do i get a 4g64 (what car are they out of) and how much cost
4. what conrods do i need
5. do i need to upgrade the ignition side of things
6. will i need to go aftermarket ecu
7. what is the approx. costs of doing this

i want to keep it naturally aspirated for insurance reasons.

thanks in advance

Before I even start, are you aware that highly tuned N/A's use ASSLOADS of fuel? You can't drive "off-boost" the power is always on tap.

Also, to get it to make power to 11krpm you'll need some seriously aggressive and probably custom camshafts. the car probably won't make ANY power until about 5-6k rpm but it'll pull like a train after that (kinda like a big port job on a rotor).

But for the questions:

1. Depends on the tune. You'll need an aftermarket computer, big BIG cams and other niggling bits (like dual valve springs, titanium retainers etc)
2. Head work, block work etc. Building a high power NA is way more expensive than building a high power turbo. Uses more fuel, and needs way higher compression to make the required power figures.
3. Sonata. Wrecker. Cheap
4. Something forged :D Don't forget the pistons.
5. To spark the amount of fuel you're going to be injecting you'll probably need an MSD or similar.
6. Yes.
7. To make power all the way to 11k rpm you're probably looking the happy side of 6-8 grand after assembly and parts.

Remember. There's only one way to make power in a combustion engine: Fuel and Air. More power = More fuel + More air.

If you want something you can afford to put about daily in, don't do this.
 
thanx for that mate, answered my questions, and its something i wont be doing just yet, i want something with a bit of balls that isn't going to cost the earth to run
 
That setup is going to cost a motza to run, not to mention the fact that it will be always "on the edge" as far as reliability goes.
I have had a couple of very high reving 4's and they do tend to self-destruct a lot more often than turbos do.
Just turn the boost down bud and you will have better economy!
 
its running on 10psi boost, its not just the fuel dude, its the maintenence and everything else that goes with owning a vr4
 
GVR40 said:
ok, i've been thinking a few things through recently, and came up with a couple of questions.
i gotta sell the vr4 as i can't afford to keep it, so i will be using my old car

Hold on a second

So your trying to say you want to ditch the VR4, then spend a shitload on an N/A galant? I just cant see the point, no matter how much cheaper the insurance is......???

And maintenance? N/A's still require maintenance too!!

Cars are like women, cost a shitload to maintain, but theyre worth it at the end of the day! well most of them are


Entaran said:
Mitsub's are expensive to maintain.


I beg to differ, 4 cylinders are cheaper to maintain than 6's or 8's...........

try $700 for a coilpack on an S-type Jag........

Entaran said:
Remember. There's only one way to make power in a combustion engine: Fuel and Air. More power = More fuel + More air

lorrie, theres something missing from that equation........ fuel and air wont get you anything except high. Thats why we dont blow up when we pump petrol at our local servoes.
 
Enteran simplified it (only a little bit)

To make more power you have to burn more fuel EFFICIENTLY.

He just got it the wrong way around:

More fuel + more air = more power.
 
Sloth said:
Enteran simplified it (only a little bit)

To make more power you have to burn more fuel EFFICIENTLY.

He just got it the wrong way around:

More fuel + more air = more power.

yeah but you also need a spark?
 
CLuTZ said:
Sloth said:
Enteran simplified it (only a little bit)

To make more power you have to burn more fuel EFFICIENTLY.

He just got it the wrong way around:

More fuel + more air = more power.

yeah but you also need a spark?

Pull your head out of your ass and stop being so pedantic.
I outlined above that an MSD would probably be required hence i'd already covered it. Think before you talk, a lesson I had taught to me the hard way.

Oh and parts for my old man's merc in some cases are CHEAPER than some of the equivalent parts on my vr4 from the dealer. So please don't talk to me about parts prices. Thanks, have a nice day.
 
cars in general are expensive..
big boys toys

my r/c is so cheap its not funny!
compared to the vr4 that is.. lol

lorrie, what happened to gto? evo?
 
Have you read what there is on Magnus Motorsports web site about these types of engines? suspect you have, but they are the only one I know of developing these type of things.

If you really want 11,000rpm, then you should likely look at running a 1.6 crank, I think the 2.0 crank is still too long a stroke for that sort of rpm.

I'd avoid MSD at almost any cost, their are units available that actually work for similar prices, if needed.
 
have you seen the john shep vid?
he revs his 2.0L to 10k..

the in car vid..
its amazing..
boost doesn't build up till around 5500 rpm..
 
Someones had a bad day :p

Entaran said:
Pull your head out of your ass and stop being so pedantic.
I outlined above that an MSD would probably be required hence i'd already covered it. Think before you talk, a lesson I had taught to me the hard way.
(cue violin music).........................................

hahaha.... some of these discussions are hilarious.

For the amount of money you would have to spend on the GSR galant to get to to rev reliably and consistently to 11k rpm (if youre seriously considering building a NA monster), it would be worth your while considering selling it to purchase a B16A or B18C engined honda and spending the dollars on that. I seriously doubt an worked NA galant could outrun even a worked B16A/B........ plus they sound better anyway.........

just an opinion, obviously some people will disagree :)
 
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