Bargain Supercharger Kit Coming?

[XRQTOR]

Originally Posted by sly

Might be a good idea to start a new thread with that offer, perhaps firm it up with details such as which head unit, what you plan to include... and see what interest there is. I'm cursing you didn't throw the gauntlet down a few days ago... I passed up the opportunity to buy a Novi 1000 for $1800 the other day because I couldn't organise a bracket in the seller's time frame. If the chance comes up again maybe we should talk.

I'll chase it up and come back with firm pricing & details on what will be included ok. FYI the novi blower has the same bolt pattern as a vortech, novi/vortech are made in the same shop.

[XRQTOR]

Originally Posted by stockoau

and would these kits also include injectors and a tuner?

I'll work it out and come back toy you guys.

[phibza_XR6]

what are the differences between the raptor and the vortec supercharges, is one a whole lot better then the other or does one produce more boost?

[phibza_XR6]

Originally Posted by sly

Maybe a custom grind? An easy upgrade for pushrod motors is higher-ratio rockers. AFAIK that's not an option for the I6 but you would get the same result with a higher-lift regrind of the stock cam.

Would a custom grind on the cam that comes in the vct motor, as u have said a higher-lift grind, produce alot more power?
What are the reasons that no one has made cams for these heads is it not worth it or to much stuffing around with the vct?

[StealthAu]

Originally Posted by phibza_XR6

Would a custom grind on the cam that comes in the vct motor, as u have said a higher-lift grind, produce alot more power?
What are the reasons that no one has made cams for these heads is it not worth it or to much stuffing around with the vct?

I'm thinking it is due to the limited market. Somepeope have had custom grinds, I think one guy got around 8rwkws gain including a retune to suit, so you have to weigh up the cost against the gains.

[phibza_XR6]

Originally Posted by stockoau

I'm thinking it is due to the limited market. Somepeope have had custom grinds, I think one guy got around 8rwkws gain including a retune to suit, so you have to weigh up the cost against the gains.

Yeh well thats it at the end of the day isn't it. Well once i decide wether or not i want to turbo or supercharge the ute i will have to do some research into what i can do to the motor internally as well. But either way i am looking for around 250rwkw, and i would prefer the supercharger option over the turbo. At the moment the ute is running at 151rwkw so i dont think 250 would be out of the question with the supercharger. What are your thoughts?

[StealthAu]

Going of the percantage gained by the car that was done, I'd say you should see that sort of power just with the addition of a cooler and exhorst.

[phibza_XR6]

Originally Posted by stockoau

Going of the percantage gained by the car that was done, I'd say you should see that sort of power just with the addition of a cooler and exhorst.

yeh well thats what i was hoping, so what is the difference between the Powerdyne supercharger and the raptor one? I mean is the the compressor wheel or something else, cause there really isnth that much to them!

[StealthAu]

Personally I think the raptor headunit offered in their kits seems too small to be running 9psi without having to worry about rebuilding it too often. I could be wrong though, I haven't bothered looking too deeply into the specs of it.

[phibza_XR6]

Originally Posted by stockoau

Personally I think the raptor headunit offered in their kits seems too small to be running 9psi without having to worry about rebuilding it too often. I could be wrong though, I haven't bothered looking too deeply into the specs of it.

fair enough, well on there site they reckon they are bringing out an 'R' type superchager sometime this month so i wonder what that will be like and if it would be adaptable to there kit for the ford. I would love to hear or see a car with the same motor as mine with the raptor kit in it! Anyway if i was to get there kit i wouldnt be buying the injectors or the flash tuner with the raptor generic tune, so that should drop the price a bit from $5200

[sly]

Originally Posted by stockoau

Personally I think the raptor headunit offered in their kits seems too small to be running 9psi without having to worry about rebuilding it too often. I could be wrong though, I haven't bothered looking too deeply into the specs of it.

It's rated at 750cfm... more than enough to feed an I6 at 6000rpm. Tim also reckons none of his units in Commodore kits have needed rebuilding yet, so he can't really say how long they go between rebuilds. He also claims the Raptor rebuild kits are cheaper than any other SC. I'm not at my usual computer ATM so don't have links. There is more info on some of the Commodore forum sites.

[xr8ute]

Originally Posted by stockoau

Personally I think the raptor headunit offered in their kits seems too small to be running 9psi without having to worry about rebuilding it too often. I could be wrong though, I haven't bothered looking too deeply into the specs of it.

This seems like a fairly reckless statement to make, especially since you admit you "haven't bothered looking too deeply into the specs"...

If you are not exceeding the max rpm of the impeller then you should have no worries about frying belts or bearings. Does anyone know what the max impeller speed ends up with this kit?

[sly]

Originally Posted by phibza_XR6

fair enough, well on there site they reckon they are bringing out an 'R' type superchager sometime this month so i wonder what that will be like and if it would be adaptable to there kit for the ford.

At 17psi you would need to beef up your pistons, rings and rods... add a serious fuel pump & injectors etc etc. It'd go alright though.

One of the benefits of the Vortech is that the same head unit can be used for applications from 4 to 20psi (V2 SQ, others go higher) with just a pulley change... and matching engine mods of course!

[sly]

Originally Posted by xr8ute

If you are not exceeding the max rpm of the impeller then you should have no worries about frying belts or bearings. Does anyone know what the max impeller speed ends up with this kit?

According to 928motorsports.com the head unit is good for 11psig at 57,000 rpm. so at 9psig it would be doing a bit less than that.

Just thinking about that though, the Yanks are using these Raptor V's on Porsche 928's which range from 4.5 litre SOHC (per bank) to quad-cam 5.2 (or 5.4???) litre. These engines spin over 6000rpm. Our I6 would be comfortably within the Raptor's capacity.

[xr8ute]

Originally Posted by sly

According to 928motorsports.com the head unit is good for 11psig at 57,000 rpm. so at 9psig it would be doing a bit less than that.

Sly, you are misunderstanding that statement. There is no direct relationship between "boost" and impeller speed. At 57,000rpm, that blower might make 20psi on one engine, and only 3psi on another....every engine is different.

Boost is like a measure of the difference between the air demand of the engine, and the air supply from the blower.

The blower wont even be pumping the same amount of air in both scenarios, because the effeciency of the impeller differs depending on the air pressure it is pumping into....compressor surge and so on.

[lostdude]

sorry to go off topic but i'm thinking of going turbo route myself. Does anyone have any experience with the SNortperformance turbo kits?
for 3125 delivered, it says 200 to 250 rwkw.
:

[xr8ute]

Originally Posted by sly

the Yanks are using these Raptor V's on Porsche 928's which range from 4.5 litre SOHC (per bank) to quad-cam 5.2 (or 5.4???) litre. These engines spin over 6000rpm. Our I6 would be comfortably within the Raptor's capacity.

Its got me buggered why they are running such small blowers on those motors. When you look at most of the 928's though, they made less than 300hp, so they aren't massively high performance V8's.

They used to run powerdyne BD11a's in their kits, but they heavily promoted the upgraded impeller and better quality bearings that made them more efficient and with higher impeller rpm capability.....pretty close in performance to a Vortech S-Trim.

[phibza_XR6]

Originally Posted by sly

At 17psi you would need to beef up your pistons, rings and rods... add a serious fuel pump & injectors etc etc. It'd go alright though.

One of the benefits of the Vortech is that the same head unit can be used for applications from 4 to 20psi (V2 SQ, others go higher) with just a pulley change... and matching engine mods of course!

Yeh at 17psi it would go pretty hard, but i am not willing to spend all that money on re-doing the engine. Think i might just give there kit ago and see how it turns out! Would putting under drive pullies make much more difference on the vct motor?

[sly]

NOSXR is doing a group buy for underdrives for BA/F's. He claims gains of up to 9RWKW... NFI how this translates to the AU VCT. I didn't think you could get an underdrive for the AU anyway... or are you looking to change all the accessory pulleys rather than the harmonic balancer / crank pulley?

I'm looking for an underdrive myself as I'm thinking of shortening my diff to 3.73, which will spin all my accessories 15% faster (compared to 3.23). If you get an underdrive crank pulley, you'll need a correspondingly smaller blower drive pulley as well, otherwise you'll underdrive the blower...

[HLC]

i thought the AU motors were underdriven from factory?

[StealthAu]

Originally Posted by HLC

i thought the AU motors were underdriven from factory?

Theres no such thing as underdriven from factory.

[sly]

I think he meant underdeveloped...

[FGII-XR6]

Originally Posted by HLC

i thought the AU motors were underdriven from factory?

the 5.0 is, compared to the US engines so if you buy an underdrive from the US for a 5.0 it will make no difference.

Originally Posted by stockoau

Theres no such thing as underdriven from factory.

this is only 1/2 right. as stated above the aussie 5.0 is underdriven compared to the engines used in production in the US so some say it is " factory underdriven"

none of this applies to the 4.0 of course

[xr8ute]

Originally Posted by au3xr6

the 5.0 is, compared to the US engines so if you buy an underdrive from the US for a 5.0 it will make no difference.
this is only 1/2 right. as stated above the aussie 5.0 is underdriven compared to the engines used in production in the US so some say it is " factory underdriven"

none of this applies to the 4.0 of course

The AU/Explorer 5.0L underdriven thing is a myth....the pulley ratios are all within about ~2% of the std E-Series V8.

You can underdrive either with a mix and match of e-series and AU pulleys, but to state the AU 5.0L is "underdriven" compared to US V8's is incorrect.

I believe there are underdrives available for the AU 4.0L, but as stated, if you reduce the size of the crank pulley, you will be underdriving the blower as well.....

[sly]

Originally Posted by xr8ute

I believe there are underdrives available for the AU 4.0L, but as stated, if you reduce the size of the crank pulley, you will be underdriving the blower as well.....

As most of us here are waiting to fit a blower, that just comes down to specifying a different blower pulley when ordering. I've had no success so far in finding underdrives for the I6, any info/advice gratefully received.

[sly]

In case anyone is wondering how Raptor fared in the Mackay deluge, Tim says:

Where we are its one of the few locations that never floods or at least not in the history of white mans occupation of Mackay ........ we are going just fine and have been making up superchargers right through the whole event. We are waiting on the laser shop to cut out the AU bracket parts for us right now but will be some slight delays until the flood clears.

[blackers10]

glad to hear they faired well in the floods!!

bet his shops value just tripled!!

hope his house was ok too?

did anybody end up getting some more up to date pricing on the kits?

[sly]

AFAIK he offered an introductory price of $4800 for anyone who put their name down before Jan 3, others have suggested $5200 otherwise (for complete, bolt-on-and-go kits). I believe he's making some more refinements to the non-VCT kits to get a bit more out of them now that he has his own development mule. If so, I'd expect final pricing may vary again depending on what has to be added or can be "simplified".

Personally, I haven't asked for a price yet. I don't believe it's fair to hold someone to a price guesstimated while the spec isn't finalised. That's just my opinion... others may differ.

He's likely to have the market to himself for a while too. CAPA seem lukewarm at best on doing anything with Vortechs for the I6 now they're going out of Powerdynes... and it's taken almost 6 months longer than he first thought to get a kit to market, so there'll be a fair slab of development costs to recoup.

[sly]

Has anyone noticed a subtle change in wording on the Raptor site lately? (along with revised release dates for the Raptor R and Raptor V Hybrid).

Where it used to say that Raptor 'chargers benefitted mid-range and top-end power but were "not suitable for towing caravans" it now says

Raptor superchargers benefit the entire RPM range of your engine, the low, mid and top end gains are phenominal

I'd always assumed the bit about caravans meant not much change in low-rpm torque, maybe Tim meant that a Raptor-equipped car would just pull the guts out of a 'van??? :evil3:

[sprjenkins]

LOL, people are still waiting for this, it was supposed to be out anyday, just "finalising the tuning" 8 months ago. Come on its just a supercharger kit, how long does it take.