[SuziBlu]

atari4x4 wrote:

depending on the applicaiton the J20A 2.0L 4cyl makes 97-103kW@6300rpm 166-183Nm@3000rpm, now thats usable power.

Crikey, I like that torque figure, can I shoehorn 1 into the Maruti.

Otherwise, its a G16A, not sure of the revs but 123nm as stock, with some decent breathing, this will increase substantially.

[Ben_Sierra]

atari4x4 wrote:

depending on the applicaiton the J20A 2.0L 4cyl makes 97-103kW@6300rpm 166-183Nm@3000rpm, now thats usable power.

Yep.

Not quite so simple for a Sierra conversion though...

[zukmeista]

Ben_Sierra wrote:

atari4x4 wrote:

depending on the applicaiton the J20A 2.0L 4cyl makes 97-103kW@6300rpm 166-183Nm@3000rpm, now thats usable power.

Yep.

Not quite so simple for a Sierra conversion though...

It is with a trail tough conversion kit! $$$ though.

[Ben_Sierra]

zukmeista wrote:

Ben_Sierra wrote:

atari4x4 wrote:

depending on the applicaiton the J20A 2.0L 4cyl makes 97-103kW@6300rpm 166-183Nm@3000rpm, now thats usable power.

Yep.

Not quite so simple for a Sierra conversion though...

It is with a trail tough conversion kit! $$$ though.

And how well will the Sierra driveline handle the extra grunt...?

[jdk81]

Ben_Sierra wrote:

zukmeista wrote:

Ben_Sierra wrote:

atari4x4 wrote:

depending on the applicaiton the J20A 2.0L 4cyl makes 97-103kW@6300rpm 166-183Nm@3000rpm, now thats usable power.

Yep.

Not quite so simple for a Sierra conversion though...

It is with a trail tough conversion kit! $$$ though.

And how well will the Sierra driveline handle the extra grunt...?

I doubt the xfer case would be happy (even in high range with stock 1.3 gearing). 166-183 * 3.625 * 2ish = bye bye xfer case at primary gear interface.

[SuziBlu]

Many people use a 1l transfer case behind a 1.6l, there must be some Arni strength in suzi bits.

Id be more sus about the axles n CVs than anything else.

[sleeperzook]

SuziBlu wrote:

All twin cams are way up in the rev range, useless as far as Im concerned, I like the torque as low as possible. The g16b is a lot better, but Id like to see it even lower.

Horsepower/kilowatts is a sorta useless figure, its the torque that is what a 4wd is all about.

It's kind of off topic, because no-one is comparing apples with apples and I guess to do that you'd need to know what engine mods are planned, if any. The advantage of twin cams in my position is I have put adjustable cam gears on and decreased the overlap of my cams. This reduces the scavenge effect intended for top end revs, but has picked up my bottom and mid ranges a lot. Obviously I have boost, which comes on just past 2000 and is on 10psi by around 2500 and makes for great torque at useable revs. However again we're comparing banana vs your apple

In all honesty I think either will be a big improvement and a lot of fun. People will always have their favorites. Truth be told my zook on 5 psi still kills everyone and everything I ever wheel with and I have no doubt N/A GTi/Vit donks would be very capable too. For me, most driving is sand/mud depending on the season and the options of decent low down torque or big revs has worked well for me. It's not a HP comp, I'd put the decision more on cost and availability of donks.

Just remember....

Under steer is when your scared
Over steer is when your passenger is scared
Horsepower is how fast you're going when you hit the tree, and
Torque is how far you take the tree with you

[jonno_racing]

also something to think about.

all the motors u are looking at are going to be EFI.
EFI is a100% improvment on carbi.

[SuziBlu]

jonno_racing wrote:

also something to think about.

all the motors u are looking at are going to be EFI.
EFI is a100% improvment on carbi.

Why do you say that.

[jdk81]

SuziBlu wrote:

jonno_racing wrote:

also something to think about.

all the motors u are looking at are going to be EFI.
EFI is a100% improvment on carbi.

Why do you say that.

37% of made up statistics are 99% wrong

Angles (with gearing carrying revs stops the stalling issue on angles)
Choke (hmm well yeah, but is it worth the cost?)

Based on common efi setups, not newer settings with wideband sensors

Idle... pfft a carby can be tuned better than efi (efi cycles through the values as any reading of .45v is considered void)
partial throttle... jet a carby properly
wot (jet a carby properly), besides efi goes into open loop and ef doesnt help here anyway

The difference in power between the carby models and efi models is the valves and compression ratio.

[Fatzook]

SuziBlu wrote:

jonno_racing wrote:

also something to think about.

all the motors u are looking at are going to be EFI.
EFI is a100% improvment on carbi.

Why do you say that.

Because its true

[fordem]

jdk81 wrote:

37% of made up statistics are 99% wrong

Angles (with gearing carrying revs stops the stalling issue on angles)
Choke (hmm well yeah, but is it worth the cost?)

Based on common efi setups, not newer settings with wideband sensors

Idle... pfft a carby can be tuned better than efi (efi cycles through the values as any reading of .45v is considered void)
partial throttle... jet a carby properly
wot (jet a carby properly), besides efi goes into open loop and ef doesnt help here anyway

The difference in power between the carby models and efi models is the valves and compression ratio.

I don't see fuel economy mentioned here - it may not be super critical but I believe that is perhaps the #2 reason that auto manufacturers have switched. The #1 reason is of course emissions.

With regard the "difference in power" statement - I'd like to comment on that also - that may be the case with the engines being discussed here, but if is far from the truth as a generalisation.

We run a couple of rotary powered track cars - and have the option of swapping between carbs (weber) and fuel injection simply by swapping the intake manifolds - so we're talking the same engine, same porting, same exhaust - the EFI is easier to tune, provides better "drivability", and more power.

[jonno_racing]

i also love the fact i lean in the car, dead cold, hit ign wait for the fuel pump to prime hit start and well it starts! every time and idles perfect, then once it gets warm it sits there and idles at 900rpm perfectly. something i have Neve got a carbi car to do, no matter how much time i spend on it!

[atari4x4]

jonno_racing wrote:

i also love the fact i lean in the car, dead cold, hit ign wait for the fuel pump to prime hit start and well it starts! every time and idles perfect, then once it gets warm it sits there and idles at 900rpm perfectly. something i have Neve got a carbi car to do, no matter how much time i spend on it!

x 2


shit, I just agreed with j_r

[jdk81]

Yes there is some difference over stock carby etc, and fuel economy/emissions.

But it isn't 100% improvement, not even close.

[jonno_racing]

jdk81 wrote:

Yes there is some difference over stock carby etc, and fuel economy/emissions.

But it isn't 100% improvement, not even close.

that depends. have u ever been stuck on a big lean with a car that stalled due to carbi and wont start again?

i have. not plesent.. espeicaly when that small amount of bank is the only thing holding you on your wheels!

[skelaaleks]

Carby cut out sucks big time

[SierraDan]

Digging up an old thread..

I'm keen on a gti motor as it's a conversion I can have in my car while on my p's.

How do the gti motors handle high rpm? My carb 1.3 seems to love the revs, are they similar?

What fuel system modifications need to be done?

[qwerty123]

SierraDan wrote:

Digging up an old thread..

I'm keen on a gti motor as it's a conversion I can have in my car while on my p's.

How do the gti motors handle high rpm? My carb 1.3 seems to love the revs, are they similar?

What fuel system modifications need to be done?

who told you that you can legally do it on your p's because i cant find any info on this.

[mnemonix]

SierraDan is in a different state to you therefore anything applying to him is irrelevant to you.
Check with your local state authority.


The gti donk loves to rev. They'll purr at 7500rpm all day provided you keep them cool and with a good supply of oil.
For fuel, the easy option is a coily/vitara tank with inbuilt swirl pot and use an in tank pump.
Otherwise, lift pump, surge tank, pressure pump and suitable filters along the way as per any other g16b conversion. Theres a few writeups to see how its done.

[qwerty123]

well vic and nsw both have the same rule in their book's that no engine conversions can be done unless the car came out with that type of engine in it as a factory option. for p platers

so im just curios to see who told him he could do it.

[SierraDan]

Cops care less around here. I have it sorted, but thts not the issue or topic here

Hi comp pistons worth doing? (going to rebuild before it goes in, and extra project to play with )

[mnemonix]

I thought Newcastle cops were some of the worst around. Over the years I've been defected for all sorts of things including "dirty engine bay", "Oil leaking from fuel rail" and "empty windscreen washer bottle".
Must just be me.


Do high comp pistons fit your long term goals for the engine?
Most people that fit a g13b have wet dreams about boosting it down the track.
If you do, stick with the standard pistons or perhaps go to vitara pistons to lower the compression.

If you're happy to remain N/A, cultus pistons will net you a ~11.5:1 compression ratio that is a real bonus in a high output N/A motor.

[SierraDan]

I'm a p plater and a courier. With zero patience. And I've only been pulled up for slightly speeding and was let off. I don't mind them Here


Turbo is out of the question for the next couple of years.
But the only thing better than a strong high output motor is a woman. So whatever I do to a n/a motor I'm gonna do it.

[mnemonix]

modified N/A motors are in the same category as a turbo though for a p plater?
I believe the wording is along the lines of "P1/P2 drivers SHALL NOT drive a vehicle with any modifications that increase performance".

All depends on how dumb a cop you plan on running into I guess.

[SierraDan]

Nah, performance mods that require a mod plate.

[Blueberry]

although i cant imagine them asking to see the pistons on the side of the road.

[jimbo_jones]

I love my gti motor but a g16b is just as good

[IN2DEP]

Just make every one happy mate and do a 1.6 bottom end with a twin cam head, bore the 1.6 out to 1.8 and then you will be loughing lol,

Its been done before lol and it is great down low

[SierraDan]

http://www.youtube.com/watch?v=jNU_lk3m2PE

I just frothed a bit..