Under Rwkw

[WaRz0r]

I also went to BRISBANE TUNING & TURBO CENTRE and paid 260$ and got them to do a diagnosis to find out why it was not making much power. They found a slight boost leak from the turbo to the TB. Then they did the final dyno and it made 184rwkw. They said this is normal and when I changed the exhaust I would notice a bigger power increase. I did mention to him that I thought these made about that stock so it should be even more with the capa edit. He told me that wasn’t true. What should I do?

Craig

[blueboost]

did they tell you what boost it was running, the tune might not have loaded, and that might be the stock xr6t tune, did you feel any difference?

David

[gogo]

no problem Craig!

One other thing I didn't mention is the gear is largely irrelavant - this should not materially impact power figure (just torque figure) provided the ramp rates on the dyno etc are adjusted to suit...

As for turbo bolt - that is possible - the stock arrangement has a tendency to leak between the manifold and the turbo housing, however this will be very loud and very noticable (like any leaking or damaged exhaust) - for this to impact you boost level the exhaust gasses have to leak out and bypass the turbo which translates to a big leak.

The torque curve would suggest that if it is a mechanical problem (as opposed to just tune), that you have an issue more like a restriction in the exhaust or inlet plumbing given the way the torque falls.

Very basically as revs increase flow on both induction side and exhaust side will increase if trying to maintain a torque level - if you have a restriction in the plumbing the faster you rev - the greater the (detrimental) impact this has on the performance. Most cars with the stock induction set-up will behave like this to some extent anyway (due to the poor design ofthe induction system in particular).

This is just more pronounced in yours than most curves I have seen (not that that is a hugh number)

The other most common issue that might explain this is the waste gate actuator is starting to fail - having said that the boost appears fairly good in mid range, but they can sometime hold to a point. This will allow more flow to bypass the turbo - which means lower boost.

As for what BRISBANE TUNING & TURBO CENTRE have told you - I do not beleive that is acurate...

The stock exhaust is good for plenty although a high flow cat will definitely help (one of Nizpros customers has run over 400rwkw with stock exhaust cat back from memory - just replace dump pipe and cat...).

One dyno is not the same as another - so the exact number is not so important - with a CUSTOM tune - most cars will produce between 230 and 260rwkw - typically about the 250rwkw mark in a manual. Your is in completely the wrong order of magnitude. Lets see if someone can suggest an alternate tuner for you...

It is quite possible get these results through less than ideal tuning

Good luck!

Ben.

Edited 25/09/06 04:28 AM by gogo

[SavageF6]

  WaRz0r said:

I did mention to him that I thought these made about that stock so it should be even more with the capa edit. He told me that wasn’t true.  What should I do?

Craig

←

You're right, and the guy that told you it's not true is FOS.

[Barry Blue]

  WaRz0r said:

Its the standard maps from Powertorque . . .. .

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I too started with the standard maps from Powertorque, and my 10psi map produced 211RWK, but was only puting out 6psi

Then the Wog gave me an 8psi map of his own and one trip around the block blew my cooler hoses off, then the Dyno showed it was running 11psi

Clarke

[Kimberley Scott]

Mate PM Goldie and take it down to him, get hem to look over the car for you. He will be able to tell you what faults if any are with your car, Get them sorted if any and then reload tune and get it redynoed, if dollars allow get a custom tune.

Scotty

[DBOSS]

  Barry Blue said:

Then the Wog gave me an 8psi map of his own and one trip around the block blew  my cooler hoses off, then the Dyno showed it was running 11psi

Not really an 8psi tune then is it

[Barry Blue]

  DBOSS said:

  Barry Blue said:

Then the Wog gave me an 8psi map of his own and one trip around the block blew  my cooler hoses off, then the Dyno showed it was running 11psi

Not really an 8psi tune then is it

←

Neither was the 10psi map from CAPA

Maybe when flashed into another car the results would be different

By the way DBoss, what psi is your car running?ooops SORRY, silly me, forgot, no hair dryer

Clarke

[turtle33]

  WaRz0r said:

I also went to BRISBANE TUNING & TURBO CENTRE and paid 260$ and got them to do a diagnosis to find out why it was not making much power. They found a slight boost leak from the turbo to the TB. Then they did the final dyno and it made 184rwkw. They said this is normal and when I changed the exhaust I would notice a bigger power increase. I did mention to him that I thought these made about that stock so it should be even more with the capa edit. He told me that wasn’t true.  What should I do?

Craig

←

these guys were knobs when the vl's were around, seems nothings changed

[F6 UTE]

Whoever sold you the 'box + tune', do they have a dyno??

Get them to run your car up stock, then straight away run it up flashed.

Something isn't right, but maybe the Charge temp correction tables haven't been altered.. ( They limit power when it's hot )

Is it any better first thing in the morning, or when you start it up at the end of the day??

Hook up a boost gauge, go for a run stock, then flashed. ( borrow one?? )