Supercharging an VZ Exec?

**bigdaddycool** · 29-09-2009, 10:16 PM

Question: Supercharging a 2006 VZ Executive, whats a safe PSI to run the supercharger at.

I'm considering it atm... is 10 psi to high?....

**Burto89** · 30-09-2009, 08:56 AM

How much is the setup costing you?

**daniel555** · 30-09-2009, 09:16 AM

10psi is fine. Anything after that u'll need to run a cooler.

**Benboy** · 30-09-2009, 11:08 AM

If your 'just' thinking about now, why not talk to some installers, get some prices, let THEM tell you what THEY recommend as the most appropriate pressure to run at. Lot will depend on age, condition etc of your engine. p.s. make sure that you do your homework first !!

**bigdaddycool** · 01-10-2009, 08:08 PM

i'm stupid charging....... and i've decided to run 4 or 6 psi as not to stess things too much. Car is in great condition ......... always serviced etc. new oil, tranny done, brakes, sparkies, fuel filter etc in the past 10,000km's........ 120k on the clock.

**bigdaddycool** · 01-10-2009, 08:16 PM

do I need a modified car certificate to have it? Sorry I am ordering the parts and will be bolting it up myself....... but i'll probably take it somewhere so they can smooth out the tune on the dyno for me

**impulsive** · 01-10-2009, 09:31 PM

Legally speaking im pretty sure you need a mod plate.. make sure you paint the charger with the special paint.. remembering itll get you extra Kw's

**bigdaddycool** · 02-10-2009, 12:59 AM

given your signature impulsive........ I think you should drive a Ford.

Dont be hatin.

**Danoz** · 02-10-2009, 08:57 AM

Originally Posted by impulsive

Legally speaking im pretty sure you need a mod plate.. make sure you paint the charger with the special paint.. remembering itll get you extra Kw's

Due to the bonnet not heating up... hahahhaa

**CAL-FTW** · 02-10-2009, 09:18 AM

id proably look at 6-8 psi. dont forget injectors and possably a pump too!
but do your research, give a few of the site sponsors a call. thats what there for

**impulsesv6** · 02-10-2009, 10:05 AM

10psi is very hard to get to... in the actual engine that is
10psi before the tb is easy...

you need intercooled,
you need injectors,
possibly fuel pump,

what charger you thinking off?

**jaisvz** · 02-10-2009, 02:51 PM

LOL, ..... LOL!!!!
I wonder what fueled these thoughts *smug grin*
Hey ImpulseSV6! :P

**jaisvz** · 02-10-2009, 02:52 PM

And yes, intercooled is a must.
Trying to tune a non intercooled supercharged alloytec is almost useless.

**jaisvz** · 02-10-2009, 02:53 PM

P.S.
4 or 6 PSI? Lol pff. Whats the point?

VRRRRRRRRRRRRRR, LOL KRSHHhh

**Exidor** · 02-10-2009, 04:42 PM

If you are going forced induction.
You may need to revisit your open
diff dilemma.

**impulsesv6** · 03-10-2009, 08:30 AM

Originally Posted by rodbol

If you are going forced induction.
You may need to revisit your open
diff dilemma.

nah... the diff gears were too expensive...

just paint them, i hear it makes car go heaps awesome in the most unexpected ways

**L67 Calais** · 03-10-2009, 09:54 AM

WTF??? Someone fill me in on the painting thing.......

**Danoz** · 03-10-2009, 01:04 PM

Originally Posted by MISTER VP

WTF??? Someone fill me in on the painting thing.......

This thread should give you the level of knowledge and reputation of bigdaddytool

Painted Engine Bay - Pics

**Sean880** · 03-10-2009, 01:44 PM

You are wasting your money. These engines were never designed to take the stresses of a supercharger. You will have expensive problems and end up damaging your stock engine. Then you have the problem of your insurance on the car with this mod. If you don't declare the mod they can and will deny any claim you make.

If you want more power sell your V6 car and get a V8 - eg Sv8 model. A lot cheaper in the long run, a stronger vehicle in the driveline and no insurance or other hassles.

**FAT.36L** · 03-10-2009, 01:47 PM

The 175kw alloytec's run a 10.5:1 compression ratio so i wouldnt run over 8psi

**andyman** · 03-10-2009, 02:10 PM

Originally Posted by Sean880

You are wasting your money. These engines were never designed to take the stresses of a supercharger. You will have expensive problems and end up damaging your stock engine. Then you have the problem of your insurance on the car with this mod. If you don't declare the mod they can and will deny any claim you make.

If you want more power sell your V6 car and get a V8 - eg Sv8 model. A lot cheaper in the long run, a stronger vehicle in the driveline and no insurance or other hassles.

the bottom end in an alloytec is quite strong for a production motor,

id stick a moderate amount of boost on it,

i know of one guy living on the coast down here who has nos and a supercharger on his vz ute, been on for 25,000km, car has less than 40km on it, and its never had a drama

**bigdaddycool** · 03-10-2009, 04:34 PM

Again with the painted intake....... looks better then your stock crap and thats all I got to say about that.

And yes I might have to revist the diff problem........ but my way around that is to pull back the torque by .01under stock level where as i've run it upto .7 past stock on the Optimal Torque table which was what originally caused the issue.......

And I will admit I know ZERO about superchargers....... but that said, it's on it's way..... 10psi pully and I'll have to get a release valve of sorts to control the pressure so i can run it 4-6psi.

When I get it I'll run out and get a guage to read the pressure as I'll have to smooth out the idle surges no doubt....... It will be non intercooled for the time being, I'll see the effect it has on the fuel trims, spark advance and diff first. I'm not going to super power, I'm not going for KW........... I'm going for a decent in-between. My goal is not to be a tool and try and kill myself or blow my engine trying archiving the most power possible.

And no it wouldn't be hard to tune a "non-intercooled" setup........ because what your saying just by even saying that is you'd push it to it's max with an intercooler spark advance wise just because it's "intercooled" and supposed to stay around the same temp which will never be the case.

If you implement safety into any tune and take into consideration temps and **** fuel you'll always be right.

My goal is simply this:

Run 4-6 PSI, dyno result to archive the 180kw atw's mark with around 300-400nm torque preferably. I know I could go much higher....... but I dont need to.

**impulsesv6** · 04-10-2009, 09:56 AM

Originally Posted by bigdaddycool

And I will admit I know ZERO about superchargers....... but that said, it's on it's way..... 10psi pully and I'll have to get a release valve of sorts to control the pressure so i can run it 4-6psi.

When I get it I'll run out and get a guage to read the pressure as I'll have to smooth out the idle surges no doubt....... It will be non intercooled for the time being, I'll see the effect it has on the fuel trims, spark advance and diff first. I'm not going to super power, I'm not going for KW........... I'm going for a decent in-between. My goal is not to be a tool and try and kill myself or blow my engine trying archiving the most power possible.

And no it wouldn't be hard to tune a "non-intercooled" setup........ because what your saying just by even saying that is you'd push it to it's max with an intercooler spark advance wise just because it's "intercooled" and supposed to stay around the same temp which will never be the case.

If you implement safety into any tune and take into consideration temps and **** fuel you'll always be right.

have a think about what you just said...
now think about why only 1 workshop in the country has has consistant sucess with the alloytec and boost... and this workshop says about supercharged alloytec kits they sell "we decided they all had to be intercooled and thats the end of the story, going direct to the throttle body is no longer an offered option"

but youd be able to handle it no worries hay, lol

**bigdaddycool** · 04-10-2009, 01:05 PM

impulsesv6 i know exactly what your saying dude......... all I'm saying is until I see the effects of the boost for myself, i wont be wacking in an intercooler.

As you highlighted "i know nothing about superchargers" which is why i'm going to start with some low psi and work my way up ........... and see what effects it has on the car and with the fuel trims and so forth.

I more then likely may be back saying yes "you need an intercooler".... but we'll see. Honestly putting an intercooler in would be a pain in the **** just looking at it which is why for now i wish to avoid it.

**totq** · 04-10-2009, 01:44 PM

Bigdaddy, i've only read your engine cover painting thread and this thread.... you seem very 'aloof', no offence intended.
Since you don't know anything about this issue (supercharging), as you say, it can/will save you a lot of money to consider others' suggestions rather than your trial and see approach.
For example, there has been enough trials and development from other members and the s/c suppliers to suggest it be safe to run up to 10psi and intercooled.
To do otherwise will cost you dearly in tuning and retuning as you trial different ways - i have been there and done that myself.
Good luck with it, it'll go a lot harder after s/c.

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