Raptor Superchargers Project Car VY

[Raptorsc]

ECOTEC MANIAC

More torque can be delivered earlier but it will cost in extra fuel consumption, the current setup definitely offers the absolute best in fuel economy (offers just the right amount of torque without killing the auto in the low speed range) and then to have high power output as needed. Having 100kw at 3000 rpm is a massive improvement over any stock engine which needs its full rpm (say 5600rpm) to find 100 - 120rwkw, so yes 100kw at 3000 rpm means huge gains in the daily driver range!


Very low rpm torque can also only be utilised in a manual, never in an auto, auto has to be above a certain rpm usually the stall rpm (1800 - 2000) to be able to transfer torque without wasting it as heat.

Also a stock ECOTEC has 305Nm (@3600rpm) of torque at its peak, the VY ProStreet intercooled car never drops below 435Nm at any point (and shows 450Nm @2800rpm) in the useful operating rpm range, see dyno chart.

An even higher torque version is (always is) the intercooled system should you want that!

Oceans of torque everywhere, all the time

[vy low]

with the ecu who has to tune it ??
cos i was wondering if i would be able to buy the kit then eventually buy the intercooler so as we have an ultra tune in kalgoorlie here and they do a bit of dyno tuning would pretty much any dyno tuner be able to do it ??? if so wat program would they have to have ???

[Raptorsc]

The ECU tuning modifications are provided as part of the complete kit, we don't have the software or access to it, that service is provided by chiptorque and there is a 14 day period in which tune will be changed for free if its not quite right.

[Raptorsc]

Added some genuine equipment badges this morning, a little warning for would be challengers

[GOTMYN]

Hi Tim,

I ahve been playing with my VY getting it ready for the Raptor Charger!!

Y/T Rollers 1.95:1's
Iridium Plugs
Cleaned Throttle Body
Magnatec Oil/Ryco filter
Tectaloy Gold Coolant
Moreys Oil stabilizer in diff 50% Diff Oil 50%
Removed contents From Cat
Pod filter connected to MAF.

I will be running Twin 2.5" Exhaust and Pacemakers when it is time, However, Am I going to get any benifits from Exhaust if I did it now, (before Charger). Or is it best to wait until I am Fitting Stage 1??.
The reason I ask is that It will be a couple of months until I have the cash for Raptor, But I can afford the exhaust now. Some people say I will lose power with this exhaust system without forced air. do you think this is the case? or get the exhaust done?? Also, I've watched the video of your car with just rockers and twin system, and mine goes nothing like it!!
thanks Tim.

[Raptorsc]

Chrisso

There will be a small benefit which we estimated earlier to be around 4kw, however if you are planning for the charger why not do it now if you can.

Some people say I will lose power with this exhaust system without forced air. do you think this is the case? or get the exhaust done??

People who thought they knew told us the same, it demonstrates their knowledge of this engine/car .... being minimal. Like I say the benefit is small but absolutely not a backward step, the dyno will prove that to you, it will take you forward 4Kw for certain, maybe more! But will yield much much more once the blower goes on. Just look around for a twin 2.5" directly from a 5.7litre HSV car, it will bolt right on, the sound is not wonderful under full power but is silent inside car when cruising etc and makes huge power. Don't forget to run twin cat ...... with internals in cats, doesn't kill power and keeps you legal.

Do you know where the power is currently at? A dyno run of your car would be very interesting at this stage.

Pacemakers are good design in terms of flow, joints etc but will most likely touch inside of engine bay subframe on drivers side when you go around a left hand corner, this is extremely annoying and will also give bad vibes to the knock sensor which in turn can kill power since the knock sensor thinks engine is pinging and in turn retards timing.

[GOTMYN]

Tim,

I havn't Dyno'd the car yet as Im reserving money for other items, However, My car is what I have mentioned in the past, A bit of a friek when put up against mates VY's.(before mods), the rockers etc have made a vast improvement in acceleration, but I didn't want to spend $1000+ and lose power that's all. I have been quoted for a twin 2.5" sports system Redback and I am fairly happy to pay $580 for it fitted. I will fit the Pacey's myself before hand. thanks heaps Tim, Your a great help. I don't think a stainless HSV system will be that easy to get hold of at a good price, so I will settle for this one.

Thanks Again.

[fluxxx]

hey raptor,

im looking at exhaust at the moment too, i was looking at the single 3inch system from FIT because apparently itll sound great.. will this be ok? or should i be looking at a twin 2 1/2inch system if im gonna get similar performance to your car?

cheers

matt

[Raptorsc]

Fluxxx

We do have a customer with a VT who is running the FIT large bore headers and 3" exhaust, his car made 210RWKW with our generic tune only!!!

I would suggest the FIT system definitely does work, with a custom tune the results "may" be fractionally more than we achieved.

Either the twin or the big single is seeming to work very well. Choose what you like.

[Raptorsc]

Had my first real run against and XR6T it is BF series 2 6 speed manual.

Now I know this is not a be all and end all comparison but it gives an insight into the whole setup.

It was a go from 60k on, with VY following (slight advantage due to wind cutting by vehicle in front) however the Ford had a solid advantage being manual AND 6 speed ...... essentially a ratio right for the job any time. Ford had dual exhaust with quad outlets, otherwise stock so far I know.

Anyhow back to the story

The Ford is away (both vehicles had quite a load as well - similar) and I think.... well I got something to prove here as well (Ford owner is friend) so we mash the accelerator to the floor ....... can the VY do it .......and whadda you know (there was about 100m between cars at start speed) the VY starts to close the gap. I'm thinking ....... this looks promising ..........(passengers in Ford start looking backward anxiously) and the mighty V6 just keeps eating into the gap like a kid into ice cream until we are on the back bumper of the Ford, all the while the back end of the XR6T was violently twitching at each of the many gear changes as the owner flat shifted it through. It was all 2 easy and even the mongrel 4L60E auto didn't kill the output enough to disadvantage the V6, really looking forward to getting some billett servos to sharpen the shifts some more ........ and give the XR6T an even bigger bite to chew on.

At present I think an XR6T AUTO would need a full EDIT to match the VY V6 with Raptor as even the manual car needed quite a touch more if it was going to pull away. A VY manual with ProStreet would be another thing for them to think about altogether

If a V6 owner was to go Raptor ProStreet (with rockers, extractors and exhaust) and then go 2600 stall converter and 3.45 gears in the diff, it would be reasonable to expect to see acceleration well ahead of most vehicles.

[johnC]

Raptorsc,
Excellent work on your VY!
But, what effect does this mod have on the life of the gearbox / driveline? I would have thought that the stock V6 gearbox would not be built to handle this power longterm...
Also, what sort of economy are you getting now? Still got plans to make it an SS lookalike?
Cheers!

[Raptorsc]

johnC

All good questions

Fuel economy

With real featherfoot driving it does achieve its original around town economy of 10 - 10.5 per hundred, it is still giving 650 per tank on the highway without draining it right down, however if you pay no attention to how you drive around town and just use that solid 450Nm of torque and hold the rpm around 3000 rpm and push on ......... the thing gets into the fuel .... no doubt about it. I am very happy that I have the choice of either extremely good economy or bulk power but the 2 do not go together at the same time

I absolutely believe the transmission (auto) will need a billett servo to protect the auto from slurring into the gears under high power conditions, otherwise I doubt there will be further problems. The slurring fairly kills the internals if not dealt with, fitting the billet servo reportedly is a complete cure. The single spinner diff effectively gets rid of any excess torque at low speeds thereby providing drive train protection. Back further you will note that we serviced the diff with a severe gear synthetic lubricant, its going very well and our car has the quietest diff of pretty much any VY around in spite of the "action" it recieves.

Thats the story as clear as I can make it at present.

[Raptorsc]

Looking a wheels and suspension at present, could be quite a while before I go the SS front and rear bars, but then again if someone comes along with a set tomorrow I would take it without a second thought

[cmira]

ive got a vx series 2 exec can you send me some pricing on a kit for this?
and where can i find the video of your vy?

thanks fella

[Raptorsc]

cmira

The price (VU VX and VY kit) is currently on the website, http://www.raptorsc.com.au/kits.php?id=29

The video

Have been thinking about this, last night I performed the first stalled up start and all hell was let loose with tyres protesting .... very loudly, will set up something with vid footage and maybe some 0-100 stuff.

Will get something up here or on youtube with a link here in next 7 days.








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[cmira]

thanks cuz

[Raptorsc]

Thinking of taking the VY out for quartermile run tonight, see what it gets without fast shifting servos in the auto and then in some weeks get the servos fitted and measure the difference on that.

[Tadgh]

Thinking of taking the VY out for quartermile run tonight, see what it gets without fast shifting servos in the auto and then in some weeks get the servos fitted and measure the difference on that.

After you put em in and get the cooler on you should come for a holiday and have a run on this day. I would love to see how the VY goes!

[Raptorsc]

Yeah I have my eye on that one, probably can't make it .... have noticed it tho

[GOTMYN]

Don't keep us waiting too long Tim, How did it go last night??
Looking forward to hear the results.
Ive done the lot now ready for your kit!!
I am fitting an electronic single stage shift kit next week to hopefully crisp up the trans!!

[Raptorsc]

VY CHRISSO

14.5@94mph

Something to try is 1320/trap speed = true potential a car can run. Would be 14.0 for our VY with auto.

I was hoping for something around 14.2, which is typical for our Stage 1 kits and considering the VY is larger/heavier than VS etc but was showing more power. The trans is a dog, I have video of a run and you can clearly hear car on the limiter but not shifting through from 2nd to 3d. Will get that up for all to see soon. Effectively the auto was only useful for 2 gears which really sucks. Gonna have to get this sorted so I can keep up with SEAGULL who is running 14.0@98mph with a Stage 1 system with auto trans.

Ran against an BF XR8 260Kw manual, won that. Ran against a turbo silvia (many mods) and he won by the smallest fraction. Last run was against an old Ford XC hardtop fully modded for drag action, obviously he won.

Another example is it floggs a stock VY 245Kw V8 SS auto by miles, we have one of those kicking around as well.

As for the engine, the ECOTEC just loves its new found strength, turns the 2 wheels @110kph while in a nice sideways drift heating the tyres prior to a run in 2nd gear .

I have some more interesting stuff I will put up that I come across while preparing for the drags, some photos etc.

Will get that up soon as well

[Raptorsc]

First vid to go up

This one from the local dragstrip

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

The video is pretty much self explanatory

[MaN|aC]

stop teasing me with the link

it doesnt help as im paying off my stroker and trying to save up for a s/c lol

[fluxxx]

stop teasing me with the link

it doesnt help as im paying off my stroker and trying to save up for a s/c lol

i know what you mean, im saving for the s/c as well and seeing that is just a tease.

nice video raptor

[Raptorsc]

Have been researching the 4L60E thing, some good input by FIT and also transman (find him elsewhere in JC forums).

It was recommended that we run 500ml more of oil above the full mark for the auto when measured hot (as it should be). So out to the car and check check and double check, couldn't believe my eyes, it was no higher than down in the "cold" section when car was hot, there was obviously a serious shortfall in oil. Not sure how I arrived at a low oil scenario, all oils were checked immediately after we purchased the car.

It took a full 750ml of oil to bring it back to full and then added another 500ml to that, lets just say the shifting and auto performance has certainly improved a lot Times will begin to improve now that the converter/trans is properly full of oil. Hoping auto is still fine and will get those billett servos in soon.

Did a quick run yesterday and car goes from 0-230 in approx 1.2km of distance, that did include taking the time during the run to be sure it was in lock up 3rd gear rather than 4th gear.

So to all out there with a 4L60E and you might be thinking its just not shifting correctly or maybe its bumping the limiter a bit before it changes gears ........ these are certain signs that at the very least the oil may be low.

Another post coming in a minute about the pre drag brake fluid issue.