check the dyno sheet in there website evomsit . com
gt2 evt 670 dyno sheet

 

Wow! I love the LED DTRL's! They are very aggressive. I also like the carbon insert on the rear wing.

On second thought, the LEDs look plastic-ish. I like the standards better.

Color is amazing as well as the text on the door.

 

Obviously you are motivated to debate or you wouldn't make ignorant statements like:
"The limit for stock GT2 turbos is actually about 620PS on 100RON"
Says who??? Where is your proof, where is your data?? As I mentioned before, not only do we get results on the dyno but we back them up on the track. But let me guess, you still are going to claim that you know more about this stuff than we do, right??

 

I wasn't motivated but you asked:

Well, specifically on the GT2, I do have a bit of knowledge yes. Like everyone else I do not want to spend silly money on new bits (specifically turbos) when the original bits are perfectly adequate. I ran a configuration similar to your 670 kit ie intercoolers, 200 cell HJS cats, headers and some software from a German company who had a good reputation but up until recently it was software for other marques like VW, BMW.

The car ran well with the configuration and the new software seemed perfect. I had it dynoed on a Dynodynamics chassis dyno in shootout mode and (with decent intercooler air flow across the cores) got 612PS.


I was intrigued and concerned that the maximum boost level was "only" 1.2" bar when before it would run a lot higher, it just didn't seem right, also on monitoring the IAT it was obvious that the turbos were working very hard since the IATs were much hotter than when in standard tune. In this tune the car ran 0-300kph in 27s which is pretty damn fast....... a bit too fast.

I went to Germany to have RS Tuning test my intercoolers (another story) and they hammered the car on the autobahn whilst monitoring all numbers. Mr RS said the turbos were being made to run far too hard to produce the air needed for the 612PS and hence why there was "only" 1.2bar, the stock VTGs were completely maxed out. He said they would melt if I used it on the autobahn for more than a couple of back to back runs up to 300kph.

Now I know EVO do testing, of course they do and probably more than their US competitors but the testing RS do is is based around their engine dyno which has produced the majority of successful Porsche turbo race engines over the last 20 years and more importantly for this discussion they are at the cutting edge of developing, controlling and finding the limits of the VTG technology. The VTG technology is use din the car below and AFAIK they are the only engine builder racing with VTGs


As part of RS protocol my engine was engine dyno tested with the existing set up pre any RS Tuning - here is the dyno sheet:




You can see that Mr RS has written "MAFIA" on the sheet, this is Bavarian humour indicating that my engine was tuned by the "MAFIA" and as such was a ticking bomb.....So when Mr RS tells me that the stock VTGs are at the limit - I believe him, he knows what the limits are. This is not to say that you can't go beyond the limit and use the car on load for limited blasts, but that is not proper Porsche tuning IMO.....

Specifically why I said EVO have produced "silly numbers" in the past:

The only UK based EVO engined car that I know of was done by their distributor in the UK and dynoed on the same type of dyno which gave the claimed 670hp we are talking about.
The same dyno sheet from the UK company was used in EVO's marketing blurb as below:



So the EVO dyno shows 727hp and 753ftlbs all signed off and agreed by EVO so much so that they actually use it in their official brochure.... 753ftlbs that is 1024NM all on stock rods...... some very "silly numbers" there I'm afraid....

A UK mag got hold of the car and tested it against a couple of other tuned 997tts and it gave the acceleration numbers below:



So 60-160mph (to eliminate standing start variations) the EVO car was as fast as the Cargraphic car which has 626PS and 608ftlbs / 827NM.

The 9ff car with claimed 740PS was 2.6s quicker 60-160mph !!

This is the only car we have had in the UK and despite its dyno sheets being fully approved enough to be used in marketing brochure the independant acceleration numbers indicated an engine at best producing 100hp and probably 200NM less - hence "silly numbers"

the 670hp GT2 dyno sheets linked above mean the same as the above.....as I said to the OP in my first post on this thread, do a 200-300kph test, the numbers will tell you how much hp you have. 670hp should come in around 15s for a GT2 - you may have your turbos held wide open as in my first tune (see above) in which case, yes you have the power (at least 620hp of it ) and best of luck with it....

My call was and is that stock GT2 turbos can be made to produce 620PS and at this level they are being worked too hard for proper autobahn work, The new GT2RS has 620PS and I will wager anyone that the turbos will not be standard 530PS GT2 units, they will be different - this is for proper Porsche power not slip road, drag strip, street racing whizz bangers

 

So let me get this straight, you are saying that it is IMPOSSIBLE to get factory VTG turbos to make 670hp, and that our HP numbers are "silly", all because YOUR car doesnt' make that much power with factory VTG's????? Your vast experience and history with these vehicle and tuning them is based simply on the results of your tuner with your car??? Really?? Is that the best you can do? I was truley hoping that you had something a little more substantail that that.

I am sorry my friend but my data and proof of what we CAN do trumps your "data and proof" of what you calim we can't do.

 

I've said my piece, as usual people can read into it and research the "tuners" or "Porsche turbo race engine builders" as they wish....

I like EVOMS, I love their crazy builds but feel sorry that presumably because of the market they are locked into cannot evolve into the sort of outfit they could be and operate a proper engine dyno facility as all reputable race engine builders and auto manufacturers do

 

Just for clarification, are you stating that Evolution Motorsports is NOT a reutable shop? Maybe I am misinterpreting the statement above, but that's what it sounds like to me. Just curious.

 

Within its market it is probably the best and most reputable "shop", been around a long time - Todd Z sold me a twin scroll Holset blower for my 965 back in 1992 when he worked for Powerhaus, he was ahead of the tuning game then and remains so in fact I would go so far as to say he was one of the founders of modern "street" Porsche tuning and has massive khowledge....... If there was a different market over there for Porsche turbos I'm sure he would become the best in it, until then European turbo racers and Autobahn users use less "agressive" products which can last at the higher loadings put on them.

 

You have my number...

 

That is one hell of a ride. Let us know the outcome of the race EK. Check your Inbox.