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Did you check the codes? You said power train SES came on.

You should have found it then, it may not be on the V6. Maybe just he LS.

Utes have a,pump controller that adjust pump speed, it sits behind the centre consol. It slows the pump to reduce noise at idle and cruise. It may be faulty. You can remove the blue wire from the connector and the pump will run flat out all the time, we have to do this when tuning them to get...

Tune in lambda so afr calculation isn't messing with your head. Its easy enough though when you know the afr for lambda 1 for the fuel to convert but if your fuel is a mixture its not possible, nor does it matter when using lambda.

If you are relying on Holdens e85 tuning then the results will be average. There are significant gains from tuning the ethanol tables. Im never sure how a remote tuner can listen for knock. The sensors are good but often false knock at high rpm and need tuning in. I rely on my knock ears...

If your engine was leaking around the intake then it should have the tune checked. MAF or no MAF its a problem as the cylinders may be getting unmeasured air and in differeing amounts making some leaner than others. If there is a MAF it would be potentially worse as the MAF cannot measure the...

There are many "Tuners" that show a result in full throttle HP but go totally the wrong way about it. I'm often surprised by the poor quality of the tunes that come through our door, make the numbers but have fuel trims that are way off, have incorrect commander AFR's that don't match the...

It actually is derived engine torque and measured wheel torque. Forgetting losses the engine torque is a calculation based on roller rpm vs engine rpm. If the roller is doing 1/2 engine speed then the torque measured at the wheels is double. Derived engine torque comes from this and requires...

I get asked often and wrote these articles try to help people understand. I have been using dyno's for 20 years and have experience with most brands. Dyno operation - 4B Fabrications & Performance Tuning What is a dynotune? - 4B Fabrications & Performance Tuning

No camshaft or big modifications shouldn't cost $1k plus. we charge $880 which included disabling the MAF and adjusting the VE table which most guys don't do on a MAF tune. You've modified the exhaust so it should be tuned, you must have metal cats so the cat protection can be removed for more...

Unfortunatly dyno's are not all the same and can be all too easily manipulated, here's something I knocked up to try to make sense of it all. Dyno operation - 4B Fabrications & Performance Tuning

Yeah its more if EGR is passing all the time diluting the inlet manifold charge. Joel

Sluggish down low and nearly stalling? Check the MAF intake pipe hasn't got a split, if you can check codes, live data that will help. Could be EGR stuck on but haven't seent that often. Joel

I think a better description of the problem would help. Is it trying to stall, drop really low in rpm when you clutch it?

8.8:1 comp 10psi at 6000 rpm, needs a gilmer drive for more boost. Cheers Joel

Close but not quite.

Got it up to 363rwkW with new plug leads and non-projected tip plugs due to the spark blowing out, now it's belt slip on the blower, tighten the belt tomorrow and go for???? 380 rwkW? There is more in it too, but not in the buget, a new intake would give me another 1-3 psi boost and 400 rwkW I...

The T5 should be fine if you are running a stock inlet manifold as they limit power on the EFI engine, a lot depends on the driver, they tend to deflect the cluster shaft and break 2nd and 3rd in high torque engines, mostly forced induction. Driven sensibly it should be fine, I had a ported VN...

Yes and no. I have owned and operated 3 DTS Dynos and the results I have acheived have always been the same, one issue is the operator, the problem with most dyno's are that the rollers are not connected front to rear so if the vehicle is not tied down in such a way that the tyres remain in...

Yeah :( more than my old LS1 turbo Nissan Patrol to.

Things are looking good for the current VS project on the go. Having just recoed the engine with forged pistons and H beams camshaft and COME intake now we are seeing some cool figures from the HSV.

In order to demonstrate the ease of which most dynos can be manipulated we had to remove the connecting chain from our DTS ProDyne dyno. Howtocheatthedynorollers.mp4 video by 4wheelinls1 - Photobucket

Now I feel bad, I never got notification of this PM, sorry. I do a full Mafless tune with Auto set up. I have both EFI live and HP tuners. I set up high and low octane MAPS for when the fuel quality changes and tune for optimum performance and economy. Cheers Joel

Many late model manuals use an auto trans friction material on the baulking rings so you do need to use a compatible oil. I have always used TransMax Z Joel

Now I think about it that was an SV5000. Perhaps they were the only high comp engines.

I stripped one down for a rebuild that had flat tops in it, Salibas informed me that was the difference between the two, I had no reason to doubt them.

On a Buget, weld up the mechanical advance, start around 15 degrees static (also total) and fit the blower. Joel

I would believe the VT has bigger rails as it was a significantly better engine being sequentail and roller cammed. Early HSV's were nothing special, even the 185 had the same cam but with more compression. The power made by these engines in std from is no where near the capacity of the rails...

Nuthin if you draw through, you will need to manage the ignition timing, boost retard. Joel

I've turbo'ed stock 253 and 308 engine no worries, stay sensible and good tuning, retension the cylinder heads before you start.

Not if you are being conservative/sensible. The stock ecu will support more boost, especially with 98 octane. Done on a dyno to ensure sufficient fuel mixture. I do Nistune for milder applications, bigger injectors, larger MAF and big numbers are still acheivable with Nistune, I lean towards...

I'm not sure about the MSD having an advance curve, generally MSD would have a distributor with mechanical advance and boost retard is usually electronic, is there a MAP reference to the MSD? If you are using the stock distributor from the EST system I think from memory they are Hall effect not...

Don't get a mail order, OzTrack is very good but nothing compares to doing your car. What car and mods? I do a Maf tune from $550 in a manual trans car with stock engine and bolt ons, more for Mafless and auto but a stock engine never over $750, boosted and big cam stuff is more time...

Being a MAF based system a blocked air filter should have less effect. Is it only rich under power? If idle, cruise and cold start are OK. If its rich everywhere then yeah, coolant temp sensor, high fuel pressure (non-genuine reg setting or faulty) Have you made any mods? Intercooler? Where...

Having fitted and tuned all three I'd say the whipple supercharger is the best for instant power, peak numbers tend to be a bit lower due to IATs' but it's a wider powerband and more driveable. The twin turbo setup is mindblowing but complex under the bonnet and tend to be the most expensive...

The factory PCM is a good option and easy to reprogram, if no-one up your way does them Wolf do a plug in for the V500 that will also run the Auto, about $2200 from memory, we sell a few as the auto tuning is something not many aftermarket ecu's do. Have used them on Totoya and Nissan for...

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I can't speak for all mechanics but I can

In software, I use Tunercat and TunerPro RT, you could also do it in Kalmaker at twice the cost. You have to delete and reburn the memcal with the modified tune. All the sensors other than the cam are the same, the ECU will be fine. You may have to shorten the coolant sensor wiring if it is...

I supercharged a 215 VS clubby years ago from memory, it was a factory 355 with a very suspect 6 speed BTR manual conversion by HSV. It had the build no's on the dash and alike.