G16B needing more power/torque Superchargers ??

[vitman]

my g16b is starting to struggle a bit (up steep climbs ect ) its fine in 4 low 1st gear but sometimes thats just to slow so i go to 2nd and the engine just dies out.
I was thinking of bolting on a toyota levin (4AGE) supercharger and running a low boost (5-5lb ) just to keep the torque up a bit .
Has anyone done this to a G16 before ? and advice will be appreciated cheers.

[Pico42]

It has been done, but far less often than turbochargers. I know of one or two in NZ (there are probably more) and have read of others overseas. Browse the teamswift forums for better details, but very loosely you probably need:

Supercharger(obviously) with plumbing
Bigger injectors
Better fuel pump (rising rate?)
Some better ecu (hack, piggyback, replacement)
Lower compression
A decent tune
Certification

How modified is your Suzuki already?

[crzyfl]

Suzisport in Queensland sell a kit to do this.

[zukmeista]

What size tyres are you running, lower gearing is a much better fix for big tyres than more power.

[Pico42]

Suzisport in Queensland sell a kit to do this.

Not for several years. There is an old website they cannot get rid of that does list the supercharger kit, but nowadays under new ownership they do new and used suzuki parts. Essentially a wreckers.

[vitman]

Driveline is standard at the moment. Currently I run buckshot 235/75r15 tyres but am going up to 31/9.5 (or 10.5) r15s . I don't really want to have to mess around with ecu"s and tunes ect so what Are the mods I can do to the engine to get the power up a bit ? I thought I could get away with low boost on a supercharger from the standard fuel supply but maybe not

[bob_or_jim]

Yeah your fuel supply will be ok for a little bit of boost, how much is only a guess though. You can use a rising rate pressure regulator that up's the fuel pressure as the boost rises. This is good for low boost applications as you are able to deliver more fuel through the old injectors but only when boosting. Are the engines run from a Map sensor or do they have an AFM (air flow meter)? There is a bit of trickery you can do to prevent the factory ECU from going into fuel cut when on boost but the method used depends on the Map or AFM.

If you have the ability to get this done yourself then it be worth doing. I would hate to think how much it would cost with a shop doing it.

Cheers

[zukmeista]

Just be aware that the 1600's already have issues with blocks/heads cracking, boost will not help.

[vitman]

The engine uses a air flow meter set up . Basically I just need 10-15 hp or so more to help it drag itself up hills without complaining haha. Yes I am aware of the cracking issues heads only crack on std manifold and blocks crack when you strike it unlucky only ever seen 2

[meatc]

Different motor but I supercharged a Nissan CA18DE (normally aspirated) 6 lb through a sc12 Toyota blower.

Under fueling cause detonation, couldn't take enough timing out (ran like crap at idle stalled etc or detonation at revs). Put rising rate fuel reg in, better but still detonation under high revs/load. problem was only solved when I did injectors and ecu from turbo version of same motor.

As similar as most jap stuff is I would say 5-6lb would say motor will physically cope for a reasonable while, but only if fueling can be addressed (ECU tune, piggy back system etc)

My 2C

P.S
Mike from winch.co.nz used to run a turbo vit, so he would be worth a call.

[zukmeista]

Still don't think it's a good idea, but here are some threads on boosting a G16, turbo seems to be a more common idea.
http://www.auszookers.com/forum/viewtopic.php?f=5&t=33672&hilit=turbo
http://www.auszookers.com/forum/viewtopic.php?f=5&t=39599&hilit=turbo
http://www.auszookers.com/forum/viewtopic.php?f=4&t=23079&hilit=turbo
http://www.auszookers.com/forum/viewtopic.php?f=4&t=27809&hilit=turbo
http://www.auszookers.com/forum/viewtopic.php?f=4&t=6124&hilit=turbo

[3.5Pajero]

Different engine, but similar experience to meatc - I once supercharged an old 2.0lt 79 Mazda 626 with a sc12. Used a suck though carb setup, but just couldn't get rid of the detonation. It would be sweet until the engine warmed up. Amazingly it put up with multiple thrashings from stone cold and sent lots of tyres to burnt rubber heaven. Not so sure I would want to punish my daily driver samurai in the same fashion though...

[Rotazuk]

I'm all for the supercharger but at the end of the day a j20 engine swap may be a better option .
Chris .

[zukmeista]

I'm all for the supercharger but at the end of the day a j20 engine swap may be a better option .
Chris .

I was thinking along the same lines, but by the time you buy the motor and change everything over to suit you would be better off buying one with a factory fitted J20 IMHO.

[churchill]

^^ Probably getting close to the truth.

The Toyota superchargers use a bypass system when the extra power is not required as they wear out quickly if run full time. Can probably just wire it up to a switch on your dash.

[meatc]

^^ Probably getting close to the truth.

The Toyota superchargers use a bypass system when the extra power is not required as they wear out quickly if run full time. Can probably just wire it up to a switch on your dash.

can also wire it via a solinod to the TPS so it turns on at foot flat (when you need the power.)

[vitman]

We'll it needs to be reliable and I know suzuki a are I have had the truck 2 years now and it's Never let me down once and it's taken a fair hiding , what benefit will an upgraded camshaft give me ? Thanks for all the advice

[churchill]

can also wire it via a solinod to the TPS so it turns on at foot flat (when you need the power).

That makes more sense.

[Heath]

Maybe see if you can get a different ratio for the diffs? Might help instead of upping the engine power make what power it makes more useable.

[zukmeista]

We'll it needs to be reliable and I know suzuki a are I have had the truck 2 years now and it's Never let me down once and it's taken a fair hiding , what benefit will an upgraded camshaft give me ? Thanks for all the advice

From what I have read a modded camshaft won't nessecarily give you more power/torque, it just changes the revs at which it happens.

Maybe see if you can get a different ratio for the diffs? Might help instead of upping the engine power make what power it makes more useable.

That was my first thought, but seeing as it's a manual G16B I would assume it already has 5.12 ratios?

[vitman]

Yes I'm darn shure it's got 5:12 ratio diffs , the idea of supercharger only kicking in at high rpm sounds like a good idea thanks

[Rotazuk]

I'm all for the supercharger but at the end of the day a j20 engine swap may be a better option .
Chris .

I was thinking along the same lines, but by the time you buy the motor and change everything over to suit you would be better off buying one with a factory fitted J20 IMHO.

Good luck finding one , not common until the grand vitara model . Considering the engine will bolt to the gearbox and it has a efi tank etc already it would not be a hard job .

[vitman]

But ecu , loom all that will need changed ? Or will I just need a j20 ecu ? It sounds like a good idea because those j20s feel like they have good power (driven a grand vitara at work with a j20)

[zukmeista]

Yes loom, ECU, and radiator as well. Not sure whether engine mounts are different.