Uh, actually that IS correct. What do you think the net effect of lower back pressure is? The wheel spins slower as a result. Technically you're both right, but you're still wrong with the crappy attitude.

That's hybrid turbo 101, as in old Mitsu/Garrett hybrids and the like. Clip the turbine wheel for more flow and to control overall shaft rpm.

Also, you mention above "we noticed"... So who is we? The Royal we?

 

Um..I do not think there is ANY way that the expert (Tom@Champion) can possibly have anywhere near the experience, expertise and knowledge of the royal fellow across the pond who paid someone to put parts on his car...

Just sayin...

 

Wow. A know-nuthin ****** nozzle arguing with a respected tuner. I thought I had escaped this ricer bull**** when I sold my Evo....

 

The shop in Seattle quoted me approx 24 hours for the work which is a hell of a lot more reasonable. PM me for details.

 

Thanks, itguy. PM sent.

 

+1 at last someone with bit of common sense

 

You'll be waiting along time for a response. There are people who have asked Tom this question in the past and no response almost 5 years later.

885 whp is marketing. You'd be disappointed upgrading from FVD 66mm hybrid VTG to another hybrid VTG solution IMO if more power is your goal. In fact if Tom guarantees you 885whp or your money back on your 3.8 FVD built motor (in fact forget that 750bhp at the crank on pump) take his hands off and lets run the car at Brunters. Happy New Year Buddy!

 

I have also answered the question many times, but you will believe whatever you want to believe, so there's no point answering you any more. 9e is the best tuner ever, Champion Motorsport (company with a 20 year heritage of motorsport racing at the world's HIGHEST levels) are total liars, and every US tuner who has made this kind of power on VTG's are selling dreams. There....happy?

Happy New Year

 

he was referring to your 0-300kph metric.

 

Happy New Year Tom

Ha ha 9e are the best tuner ever - I have never said or implied this previously? Look 9e or me do not sell in the US so have no axe to grind and 9e do not sell hardware full stop. When fitting my GT2 RS VTGS they bought them brand new from Porsche and then sent them to have hybrid billet wheels. motorsport bearings etc. I do not even send my car to 9e for servicing however yes I do trust the owner Ken and his staff implicitly and to be fair to them before I run them into the ground lol they have just won best tuner of the year award in the UK during 2015 and have won a few other tuning awards. Whether they are the best tuner in the UK or not or not makes no difference to me whatsoever and I realise you're pulling my chain.

Equally if I was in the US I'd happily consider Champion, BBi, Protomotive, Evolution, Markski, TPC, AWE etc etc etc and the only issue I've had with you Tom (not Champion) is your quite ridiculous 68mm VTG power claim of 885whp. With the greatest respect it actually shows you do not understand VTGS or their limitations. If you did understand VTGS you'd know how ridiculous your 885whp claim really is my friend.

Also I wouldn't be surprised if Champion 68mm VTGS (with GT2 hotsides) are perhaps the best hybrid VTGS but why try and make monkeys out of enthusiasts like me and the OP by claiming there are no issues with monster VTGS at high speeds and that you/GIAC have miraculous fairy dust to tune around EGT issues when running high levels of boost without datalogs and without any empirical data whatsoever? Its not good form in my view and its how a few forum members here who obviously have 68mm VTGs get all defensive saying they know everything already etc etc.

I had my 997 turbo from new 2007 but there are loads of new guys coming on to the 997 turbo platform like the OP from other marques who want to optimise their cars. The only reason I bother to post is,

A) these new guys like the OP have asked a perfectly reasonable question and deserve an honest answer,

and;

B) so they do not have as hard time as I did when choosing a tune or VTG turbo upgrade solution or at least they go into tuning eyes wide open.

Another very nice forum member Bogg who actually has Champion 68mm VTGS with 997 turbo hotsides knows they pull timing if running high boost at higher speeds on track and as he does not go above 140mph he is happy

But on the other side of the coin another Champion customer on the 60-130mph thread or 68mm GT2 VTG build thread (I can't remember) experienced in his own words at above 150mph " .... if the temperature gets too high the car lowers the boost automatically. The car will start spraying more fuel to cool. Which will slow down your car.
If you check the afr on your car when you are testing your car you might see it.
Thats the problem about vtgs at very high speeds."

The same guy set the awesome record 5.5 sec 60-130mph with 68mm Champion VTG set up in and then swapped his Champion 68mm VTGS as well as all the other Champion accessories like carbon inlet pipes, carbon airbox i.e. circa $20,000 + tune $ + fitting $ i.e. bolt on components out for GT 3076 turbos literally a few months later. This guy took a meaningful $ loss. If someone had maybe told him in advance the limitations of VTGS for his type of use or to spec GT2 hotsides rather than 997 hotsides and not to run high boost on runs above 150 mph he may still have stuck to a VTG solution albeit GT2 hotsides or gone straight for Garretts and saved a load of $ who knows.

If you dig around certain owners of 68mm Champion VTGs are quite open that they suffer pulling ignition above 140mph- 150mph. Hopefully you can see why I struggle with YOUR 885 whp claim. You've not even run one of these cars in anger over say a mile so come on buddy give it a rest until you do. If you run the 885whp car over a mile and all the track data i.e. VBOX with datalog shows you do have 885whp I will be the first to congratulate you and I'd even consider shipping my engine to you to be built to the same spec. Have a prosperous 2016