Extractors on Suzuki Vitara

I am doing up the head etc on my 96 Vitara and am looking at finally replacing the original exhaust manifold with extractors for better heat reduction. I managed to overheat and crack the head.

Wondering if anyone knows what brands of extractors are around and who makes / supply's them I have found a couple but I have never heard of either brand. One is Coby and the other is Rage.

Its an aluminium head and block with a cast iron exhaust manifold hence the seeking out of a new extractor set.

Got a new head on its way, and will be doing water pump (New) and radiator (Flush /service / check) cam belt etc so spending quite a bit on a car that is worth nearly what the repair will be.....

heard of coby been around for awhile

coby has been around for forever i can remember putting coby extractors and resonators on a couple of valiants i had in the early 80s.... they were the go to back in the day

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Originally Posted by timattalon

I am doing up the head etc on my 96 Vitara and am looking at finally replacing the original exhaust manifold with extractors for better heat reduction. I managed to overheat and crack the head.

Wondering if anyone knows what brands of extractors are around and who makes / supply's them I have found a couple but I have never heard of either brand. One is Coby and the other is Rage.

Its an aluminium head and block with a cast iron exhaust manifold hence the seeking out of a new extractor set.

Got a new head on its way, and will be doing water pump (New) and radiator (Flush /service / check) cam belt etc so spending quite a bit on a car that is worth nearly what the repair will be.....

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I got mine done by the exhaust outfit behind Rangiora Repco, was a while ago now but they did a great job and was pretty reasonably priced. well worth contacting them.

What Dannyb said would be wort a shot. Pity i am not in a shop with normal steel, we could probably make one.
Same comments on Coby as everyone. As for Rage, do they have them in stock/ If you can get your hands on one of them and see how well made they are, that might make a diffo if they are cheaper.
if you need a hand sing out Tim. Probably a bit limited with work at the moment but i know what a couple of people can do working together on this stuff

I’ve got a snorkel for a 2.4 petrol grand vitara in the shed. Sold car before snorkel fitted. Any use?

Vitara have a habit of overheating if the fan clutch fails or someone leaves the radiator shroud off

A set of hand made extractors will help if used with iridium plugs, and keep the antifreeze changes regular and use top quality

It wouldn’t hurt to put a 12 inch daviescraig elec fan on the front of the radiator with its own thermostat switch as added protection

They can be down on power and spend more time than usual on WOT on the highway

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Originally Posted by 7mmsaum

Vitara have a habit of overheating if the fan clutch fails or someone leaves the radiator shroud off

A set of hand made extractors will help if used with iridium plugs, and keep the antifreeze changes regular and use top quality

It wouldn’t hurt to put a 12 inch daviescraig elec fan on the front of the radiator with its own thermostat switch as added protection

They can be down on power and spend more time than usual on WOT on the highway

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Mine gets used for dragging my trailer around a fair bit. We have been chasing a miss that has been really annoying for about 6 to 8 months. Changed plugs, leads, dizzy, rotor, fuel filter and Mass air flow sensor (That caused a similar issue some years back) . In some ways it is a releif to know that it was water getting into the back cylinder as at least I know what it was now....

As for WOT , I tend to sit at about 90 as I usually have the trailer on, but will pull over to let others pass. I usually catch up to them at the next truck anyway so figure in most cases not worth going faster....

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Originally Posted by dannyb

I got mine done by the exhaust outfit behind Rangiora Repco, was a while ago now but they did a great job and was pretty reasonably priced. well worth contacting them.

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@dannyb @csmiffy sounds like a plan. I will check them out. If Coby and Rage are OK then I dont mind, one is $400 and the other $500. I just did not want to buy one I have not heard of and find out they were not great ....A bit like sub silent suppressors...Anyone remember rev rog..?

Not sure Im exactly following what you're trying to achieve - replacing the extractors is one thing but it won't by itself achieve a huge deal. As part of a free flow exhaust system, opening any intake restrictions and a careful look at engine bay heat control (lagging extractors etc) it would help. The heat is coming from in the engine, so getting the gasses out is the trick. The other thing is a brand new upgraded radiator with extra capacity and uprated fan(s). If you have a miss in one of these, you generally experience what you found with induction then shortly after either head(s) off or replacement donkey. Sometimes that doesn't fix the miss too...

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Originally Posted by No.3

Not sure Im exactly following what you're trying to achieve - replacing the extractors is one thing but it won't by itself achieve a huge deal. As part of a free flow exhaust system, opening any intake restrictions and a careful look at engine bay heat control (lagging extractors etc) it would help. The heat is coming from in the engine, so getting the gasses out is the trick. The other thing is a brand new upgraded radiator with extra capacity and uprated fan(s). If you have a miss in one of these, you generally experience what you found with induction then shortly after either head(s) off or replacement donkey. Sometimes that doesn't fix the miss too...

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I am hoping it is the cause of the miss- I feel like I have tried everything else.....

For the most part it works OK. I am not looking for power or performance. I am happy with standard performance and reliability and for what I do, bog standard has been fine. I have had it for over 100,000km and In fact all I am really trying to achieve is reduce as many contributing factors to it finally breaking as I can. Apparently one of the contributing factors to the heads on these vehicles going is the fact that the head and block are aluminium and the standard exhaust manifild is cast iron. The manifild as it is retains a lot of heat even after the block and head cool down, which extractor headers help address. Its not getting a hard time (270,000km on it and as far as we can tell it is the first time the head has been off....)

The radiator is on the list seeing as I will have to get it checked anyway, as is anything else I can do while I am in there so hopefully we can leave "the lid on" for another 250,000km.....

Cobys......oh yeah,the loud cars of the 80s all had them........ they have been around for a very long time.
dont know squat about your wagon but when we had towing issues with the terrano,a wee cooler put on trans made all the difference and we have had zero issues since...apparently the patrols need same extra radiator to get the best out of them.

Lake pipes were the ghizz back in the day along with Cobys.

@No.3 I know what you mean but extractors can help.
Know a mate that that did that to his 2.4 surf years ago for the same reason

Every little thing helps, but to really get the most from the 'each little thing' it would pay to do the lot. I would make a point of sorting the miss issues before spending a heap of coin on it, the one I helped on that was bad for missing and losing HP (really flat off the line and missing and farting about for no really easy to id reason) got a lot of work done to it but even with the replacement engine it still had the miss. Ended up getting sold with the miss and a boot full of once-used parts, I can't remember if the new owner sorted the thing. Apart from the miss (it had replacement or fully checked out coils, ecu, MAF sensor, oxygen sensors, crank angle/knock, cam, temp, oil pressure and temp, the whole 19 yards). I can't think off hand of anything that wasn't tried and the bitch still missed and farted about. Possibly the only thing left would have been the loom, but they even checked that out and cleared it...

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Originally Posted by No.3

Every little thing helps, but to really get the most from the 'each little thing' it would pay to do the lot. I would make a point of sorting the miss issues before spending a heap of coin on it, the one I helped on that was bad for missing and losing HP (really flat off the line and missing and farting about for no really easy to id reason) got a lot of work done to it but even with the replacement engine it still had the miss. Ended up getting sold with the miss and a boot full of once-used parts, I can't remember if the new owner sorted the thing. Apart from the miss (it had replacement or fully checked out coils, ecu, MAF sensor, oxygen sensors, crank angle/knock, cam, temp, oil pressure and temp, the whole 19 yards). I can't think off hand of anything that wasn't tried and the bitch still missed and farted about. Possibly the only thing left would have been the loom, but they even checked that out and cleared it...

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That is pretty much what we have done so far prior to discovering the crack in the head and the missing water. We had a MAF issue about 8 years ago and replaced the MAF and it has run well ever since which is why , when it started again late last year, I replaced the MAF first thinking it was that. That made no difference, hence leads, and plugs, dizzy and rotor, coil and fuel filter as we worked through what could cause it.

I assume you have tried different octane levels???? seems a lot of new vechiles are really fussy about which they like..... we have range of options now,none cheap but the difference in power between 91 and 98 octane is rather a lot.... small motors notice this even more so.

Good point there, the V6 version pinked and farted about on 91 but didn't have the miss or other issues. Run a sh1tload better on 96 and worked out cheaper on mileage...

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Originally Posted by Micky Duck

I assume you have tried different octane levels???? seems a lot of new vechiles are really fussy about which they like..... we have range of options now,none cheap but the difference in power between 91 and 98 octane is rather a lot.... small motors notice this even more so.

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I dont think I could call my '96 JX Vaitara 'new"....:thumbsup: I have tried running it on 96 for a few months a few years back and did not notice any discernible difference. Even Ks per litre remained unchanged. Its really only the last few months it has started playing up. I have had it for over 10 years and it has always run well, been looked after fluids changed, filters changed etc. A lot of the things I have changed trying to find the issue are things that it was probably due to be replaced anyway given it is over 25 years old and has 270,000 on the clock. ( I have had it since 160,000 km)

As mentioned, It has not been driven hard enough to get it really hot in the decade or so that I have owned it. And in the last 6 months, the only thing that has changed is that I use it once a week or maybe fortnight rather than 2 or 3 times a week as I have been motorcycling to commute more to use less fuel. It is 30km to work each day so when I do commute, they are getting a proper run not a short stop start park type commute.

All I really want to achieve is to get another 10 years or more out of a vehicle that I enjoy using. It is the right size for what I want to do with it and while a little more power is always nice- I dont need it, so I am happy with driving it within its limitations.

Shouldn't be too hard finding decent wrecker bits for it on the plus side - also the lack of modern CANBus systems is on your side for anything you want to do as you don't have to threathen the thing to make it play nicely with any new bits!

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Originally Posted by No.3

Shouldn't be too hard finding decent wrecker bits for it on the plus side - also the lack of modern CANBus systems is on your side for anything you want to do as you don't have to threathen the thing to make it play nicely with any new bits!

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Wreckers can be a nit hit and miss...In this case, they have plenty of original cast headers like I have but very few aftermarket extractors as they sell pretty quickly. Same with the heads...mainly because it seems to be a fairly common issue so most heads at the wreckers are either cracked, or sold. And there used to be three wreckers here that I knew had these, one sold the land and shut up shop, one sold out to the neighbouring wrecker who decided nothing under 20 years old....and the third winds up selling the 'good' bits pretty much as fast as they come in....

There is an Auckland company selling new cylinder head kits for all sorts of vehicles

Have used their kits three times now on friends vehicles and they are solid quality

Even had all gaskets and TTY head bolts

Probably kiwi cylinder heads.
Do good deals most of the normal diesel motors here but I do know it pays to get a better head gasket. Otherwise pretty good pricing and generally reliable

I don't know if their still going.
It was called Mudbits I think up , Tauraunga. Did extractors & extras for Suki's.

Ours gave up about the same km.
Cracked on top of the head between the core plugs.

Usually the original manifolds were dumped because the inner skin failed & blocked the passages.
Ours was single skin so they must have changed the design at some time.
We had the same problem trying to get good second hand parts.

For a simple engine doing the head takes a lot of patience.
& small fingers. :)

Great little trucks when they're going.

We've now got the Grand Vitara 2l four door.
Bit gutless over the Napier Taupo but more room.
Pennyless

Hmm all this chat makes me think about getting another. Apparently you can swap in an EFI swift motor, same block etc.

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Originally Posted by 300CALMAN

Hmm all this chat makes me think about getting another. Apparently you can swap in an EFI swift motor, same block etc.

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I heard the Baleno of the same age was (almost) the same motor too

These guys are great for info.
https://www.suzuki-forums.com/forums/#suzuki-models.145
I'm on there to keep up with the latest info on our wee Ignis.
Anyway, some good guys on there and they may help out with 'what fits with what'?
Did the Vitara's suffer from inlets coking up? Better fuel (95) cured a lot of problems with cars that suffered from that.

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Originally Posted by 300CALMAN

Hmm all this chat makes me think about getting another. Apparently you can swap in an EFI swift motor, same block etc.

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An all alloy 289 or 302 you mean :)

With a diesel hilux box n transfer case

Couple of auto hilux diffs and she be a cruiser

Keep it standard on the outside

On the earlier Vitara's it was quite common for the exhaust manifolds to collapse internally and this would lead to low power and heat build up and head failure. Extractors where the common fix. I got a set in from eBay many years back as at the time all NZ suppliers had no stock available. It was cost effective then.