Dyno Power Run Vz Ss

[MRVZSS]

Hi All,

The SS Went On A Dyna Pack Chassis Dyno on the Weekend for a power run. The Car is basically a stock A4 with Cat Back and SS CAI. Initially I was hoping for around the 210 - 215 RWKW mark, but after 3 runs, the best was 203.9RWKW. Pretty disapointing, I was expecting the CAI and the Catback to give me a few extra RWKW but as it turns out, from what the guy said, the mods have actually restricted the car rather than give additional peformance. My guess would be the SS CAI. Should Be going for Some Dick Magic (Mafless Tune) Soon, and maybe ditch the SS CAI for a OTR CAI.

Anyone had a Dyno Run on an untuned VZ yet?

Any Other Reccomendations?

[untamd]

Is the dyno Pack dyno the ones that bolt on to the axles? And not the rollers?




Veasna

[MRVZSS]

Thats Right!!!!!!

They take the wheels off the rear and bolt the dyno to the wheel hubs.
Apparentley it gives a more accurate reading, commonly used for race cars.

[motomk]

Is this the same dyno you got an initial readout off?

[MNR-0]

200rwkw stock is on the money for a VZ. The catback will add nothing to your peak power. The SS CAI *could* add power but I doubt it.

Yes, as you've just found out, your expectations were too high given these relatively minor mods. If you haven't already, do a search on mods like headers, diff gears, tune/edit, MCAI, pulley, TB etc.

Everyone wants their car to read high on the Dyno. You have an A4 so immediately toss that notion right out the window and save yourself further disappointment. A4s are not Dyno Queens.

[NVU300]

Wise words said from MNR-0..... I agree 100% I put my VZ SS on a DYNO DYNAMICS dyno with no mods what so ever and only 500k's on the clock and it made 186rwkw which I thought was pretty good considering its an auto......

I think you were expecting way to much on a near stock VZ when you were hoping for 210 - 215rwkw....... But hey at the end of the day there only dyno figures and a dyno is only really any good for tunning a car......

Get out to the track and race it thats the best way to tell what you really have..... To many variables when it comes to dynos....... My mates vl turbo made 393rwhp on one dyno and stuck it on another and made 443rwhp then went out and run 11.1 @ 124mph......

Like I said to many variables.......

[MRVZSS]

I do Agree that my expectations were too High. I Think that came about from reading the MOTOR hot tuners magazine, where they had a Bog Stock VZ SS M6 pulling 224RWKW. Up against a FPV GT pulling out 240 Odd RWKW. Any Idea what it sould reach after a Mafless Tune.

[vuster]

Why not get the LS1 edit done?

[Sid447]

One thing you are all forgetting.

A Dynopak bolts to the hubs as somone has already mentioned.
Which means the rear wheels are removed;
which means the biggest part of the transmission loss is removed;
which basically means you need to knock off another 30rwKw or so.

[markone2]

Re run it on a shoot-out dyno...*if you must*, but if it's power your chasing and not paperwork, take the above advice and get yourself an edit....A4's have a nice advantage down the 1/4 mile and do not need high falutin graphs to pull good times...times never seen by magazine testers.........;) imho

[frenchyss]

Hi guys,
I own a vt2 ss a4, that what i know stock makes around the 160- 170rwkws, i've done a few mods to bring it to the 260rwkws, my question is, why are people in regard to the vz ss mentioned on this thread saying that the 200rwkws is normal for a stock ss car.
Whats the difference between the two at a stock point of view?
cheers.....

[MRVZSS]

frenchyss,

The VT SS has 220FWKW Stock where the VZ SS has 250FWKW Stock.
Improvments such as Electrinoc Throttle Response, 85mm Maf Pipe Etc., Give the VZ 30FWKW over the VT.

[BLACK 346]

Hi guys,
I own a vt2 ss a4, that what i know stock makes around the 160- 170rwkws, i've done a few mods to bring it to the 260rwkws, my question is, why are people in regard to the vz ss mentioned on this thread saying that the 200rwkws is normal for a stock ss car.
Whats the difference between the two at a stock point of view?
cheers.....

Better exhaust, LS6 manifold, bigger injectors, better
factory tune, that is a few off the top of my head.

Edit: I am assuming a cam was amongst your few
mods to achieve 260rwkw :)

[frenchyss]

yes, intake mods, full exhaust, cam, springs, and edit to bring it to that, plus a few extra's like shift kitted auto 3.73 diff to get it off the line a bit better, have a continual grin on my face every time i drive it, would still like to get to a drag night to see how she runs, but time is an issue, as i'm located in albury.
cheers...

[untamd]

I made less power on the dyno pak dyno compared to the rollers, the tuner told me its because the car wasn;t spinning as much and the dyno pak is a more accurate reading.






Veasna

[SV8VY]

One thing you are all forgetting.

A Dynopak bolts to the hubs as somone has already mentioned.
Which means the rear wheels are removed;
which means the biggest part of the transmission loss is removed;
which basically means you need to knock off another 30rwKw or so.That makes your figures even worse :eek:
Go somewhere else mate and get a dyno dynamics shoot out mode done...with rollers...or better at your nearest drag strip ;)

[Clint]

I have a Dec04 build SS M6. Left it with Steve at F1 Performance in Melbourne and he put it on their Dyno Dynamics dyno. The car is stock apart from K&N filter and HSV cat-back exhaust.
The car recorded 200rkws before LS1-Edit and 225 rkws after the LS1-Edit. It had 8000 on the clock - but the difference in drivabilty is amazing - revs much more cleaner now and is more responsive. Economy has improved (but this is relative to your right foot). It's a city driver so is perfect for the traffic light grand prix.....

[Thunder]

As Sid mentioned, the Dynapak dyno's usually read higher than a Dyno Dynamics dyno as there is less drive train loss and no slippage of the tyres on the dyno.

If you do another set of runs, do it with the CAI fitted, then take the top section off the CAI and run it again. You will be surprised with the result.

Cheers
Greg

[MRVZSS]

Untamd,

What readings did you get for the different dyno's?

[untamd]

It wasnt for an LS1 but for rotary but i think it was like 40-60rwHP





Veasna

[Padina]

Hi All,

..... I was expecting the CAI and the Catback to give me a few extra RWKW but as it turns out, from what the guy said, the mods have actually restricted the car rather than give additional peformance. ....
Anyone had a Dyno Run on an untuned VZ yet?




you serious about this? why would the exaust system restrict it? I had my on the dyno completely stock, and pulled 177rwkw at first run, but then as we ran it more times, the highest reading we got was 206rwkw. With the maff edit, max we got was 221rwkw.

i've got the beast booked in for a stainless de filipo exaust system including extractors, well the lot, from front to rear. this should improve the power it will give out, wont it??? after the exaust system is installed i will take it back for an edit. APPROX what should i expect at the rear wheels?


Cheers...:D

[STATIE]

i've got the beast booked in for a stainless de filipo exaust system including extractors, well the lot, from front to rear. this should improve the power it will give out, wont it??? after the exaust system is installed i will take it back for an edit. APPROX what should i expect at the rear wheels?


Cheers...:D

Knowing where you are getting it done and considering you are still unopened - those mods should be good for 11's :eyes:

Dont worry about the dyno reading.
Take the advice of your tuner.
The sound alone is worth the $$$

[MRVZSS]

Mate,

Don't worry too much, In my case I personally think that the CAI is the Restriction not the Exhaust. I think it will come good after a mafless tune. The car was running very rich when on the Dyno. Fuel consumption has increased to about 380Km's / Tank. What I think has happened, the computer has detected the extra air flow therefore pissing more fuel into the engine to compensate for the additional air flow. I think this should come good after fiddling with the Air / Fuel Curves.

In For a Mafless Tune At Dick's In the Next Month or So, can't wait.

[VLWagonbeast]

My mate got 207rwkw at F1 in an M6 VZ SS with 500km on the clock. His VX SS got 171rwkw three years earlier on the same dyno.

[alexcs]

i recently got 222rwkw on a shootout05 dyno, intake temp was only 22.

pacemakers, hi flows, sureflo custom twin 2.5" catback :) (another plug!)

vt with the same mods did 200rwkw just before me. (different catback, tihnk it was xforce)

if youre near your car at the moment, walk out to it and rip the ss inductions shit off right now! replace it with the factory box, or a OTRCAI and retry your dynoing on a regular dyno.

the common consensus on this place is around 195-205rwkw is the average stock reading for a vz ss/sv8, but even then i wouldnt worry, if you stick to quality bolt ons like a powertorque or sureflo OTRCAI, a PT, sams, dicks etc tune, a difil, sureflo exhaust, and 3.73 diff for your auto, 3.9s for manual, you will not be dissapointed :)

if you arent, something is horribly wrong! a good point to remember, the issue or MAF v MAFless tune for the VZ is mainly up to whether you will ever want to do headwork, cam, and/or aim solely for ET's and MPH at the strip. if the answer is no to all of these, a MAF tune may prove preferable, but confirm with your tuner.

[chillicatqld]

My VYII SS ute pulled 213rwkw pre Mafless tune!

Mods were: Full zorst system - TRI Y HPC coated headers, open cats with mandrel bent dual 2.5" system, filter, 2nd hole mod, and Maf pipe.

Was quiet happy with that figure.... Mark at PT coaxed me into a Mafless where I pulled 230rwkw - thought may have been more since I had such high initial run - but the difference in the driveablilty is amazing!!
You can see my dyno chart here if anyone is interested:
http://www.plushcreative.com.au/ftp/DYNO%20SHEET/my%20dyno.jpg

Would really luv to run in on 1/4 to see its full potential. :D

[Wonky]

On a dyno down here known to be pessimistic my A4 VZ SS with 1,500km (apparently) pulled 190rwkw (they couldn't find the sheet). After MAF edit, K&N filter and DiFillipo twin system it was just over 210rwkw - not as much gain as I expected but the difference in drivability is amazing.

[vt clubsport]

Hi All,

The SS Went On A Dyna Pack Chassis Dyno on the Weekend for a power run. The Car is basically a stock A4 with Cat Back and SS CAI. Initially I was hoping for around the 210 - 215 RWKW mark, but after 3 runs, the best was 203.9RWKW. Pretty disapointing, I was expecting the CAI and the Catback to give me a few extra RWKW but as it turns out, from what the guy said, the mods have actually restricted the car rather than give additional peformance. My guess would be the SS CAI. Should Be going for Some Dick Magic (Mafless Tune) Soon, and maybe ditch the SS CAI for a OTR CAI.

Anyone had a Dyno Run on an untuned VZ yet?

Any Other Reccomendations?

I didnt think they made a OTRCAI for the vz yet????

[alexcs]

im sure itll fit, it just means you run mafless right?

[Chev Lumina SS]

Not sure if this is relevent or if it will perhaps help but a UNCHIP is also an effective way of increasing power. As a matter of interest all the cars that arrive in South Africa do end up getting chipped as the high altitude in Johanesbrg is making the motors run soo rich that they are using about a tank of fuel to 250 kms or so. Lot of guys have had there cars chipped with the UNICHIP and found reasonable gains in power.

Here we also arent required to have cats on so most guys throw those away, get quite a bit more power by bining those. ;)

With UNCHIP and freeflow, catless exhaust and MAF removed my VX gets about 230 rkw, not sure about other mods its had(bought second hand) but even if the dyno is a bit wonky feels fast enought to me, fast enough to hang with a POrsche 993 Turbo through 1st gear.... ;)

[Roger]

you serious about this? why would the exaust system restrict it? I had my on the dyno completely stock, and pulled 177rwkw at first run, but then as we ran it more times, the highest reading we got was 206rwkw. With the maff edit, max we got was 221rwkw.
i've got the beast booked in for a stainless de filipo exaust system including extractors, well the lot, from front to rear. this should improve the power it will give out, wont it??? after the exaust system is installed i will take it back for an edit. APPROX what should i expect at the rear wheels?Cheers...:D

No, the issue is RECALIBRATING THE COMPUTER: 1. SS Inductions CAI - sounds good, would channel cooler air, but it is restrictive. 2. Exhaust system (& there's good & bad simply because of mis-matching of components or poor design), well that will give a V8 noise.
3. Prior to re-tuning the computer to suit ANY of those mods - a recipe for lots of mis-matching & the factory settings going haywire trying to chase why it's fuel delivery doesn't seem to spit the right numbers out of the O2 sensors anymore...... a good possibilty to go backwards.
Sam's Dyno day, mid 2003 I think, my VYM6 - with only an SS Ind CAI (which has now gone) basically stock was 202rwkw, another bog stock VYM6 was 208 ! All other VY's were lower (on the day) & most had mods which included exhausts - BUT THEY WERE UNTUNED.
Sureflo put there goolies on the line & offer a dyno run before & after they install an exhaust & as he would appear to have done plenty can get a positive result. But TUNING it, will take full advantage !
In any case - how many of the blokes here have said the driveablity has improved out of sight following a tune ? The power figure is simply 1 part of the whole equation, the torque & power curves & how fat they are low down in the rev range are what give you the increase in performance, not neccessarily the max kw figure.

[Thunder]

I didnt think they made a OTRCAI for the vz yet????

Ours fits VZ but mafless only and not with the Monaro bonnet.

[Walt]

...if you stick to quality bolt ons like a powertorque or sureflo OTRCAI, a PT, sams, dicks etc tune, a difil, sureflo exhaust, and 3.73 diff for your auto, 3.9s for manual, you will not be dissapointed :)...

Hey alexcs, I've just been told you've switched a sureflo system for a di filipo. Is that true? (I ask 'cause I'm getting front to back exhaust, a mafless tune & a 3.91 diff for my Monaro & I'm struggling to decide between a sureflo tri-Y system (daily driver - want power down low) & a di filipo 4>1s system)

...so I'm really interested in di filipo vs sureflow...

[wicky]

Mate,

Don't worry too much, In my case I personally think that the CAI is the Restriction not the Exhaust. I think it will come good after a mafless tune. The car was running very rich when on the Dyno. Fuel consumption has increased to about 380Km's / Tank. What I think has happened, the computer has detected the extra air flow therefore pissing more fuel into the engine to compensate for the additional air flow. I think this should come good after fiddling with the Air / Fuel Curves.

In For a Mafless Tune At Dick's In the Next Month or So, can't wait.

Strange comments in your above thread. I'm not a scientist but extra air flow more fuel WELL CAI must be doing something.