Finally got my dealer to get up with Racers group and they are going to install the UNichip on my 02tt and still warranty the car. Is the Ruf exhaust the best to go with? Also their dyno is a two wheel dyno they use for racing.. I suppose they will just disconnect front wheels?? Racers group said their is a new addtional $ 300.00 piece which will add more horsepower?? How much horsepower can I expect from unichip,exahust, air filter and additional piece..??Any input will be appreciated..

Mac

 

What's the "additional piece"?

I am in a similar position as you are with dealer, warranty etc. I am looking at either Ruf or Cargraphic (sound version, not export version) exhaust. IMHO, Fabspeed is too loud for everyday use.

I've seen a Dynojet dyno sheet for a tuned TT with Unichip and Fabspeed: 450 rwhp and 470 rwtq. This scares me in fact since the stock turbos may be overspinning. Another car dynoed at 420 rwhp. The stock was around 340 rwhp. These numbers come from a tuner (IDA in NJ) I might go with.

 

I'm curious as to how you are getting the dealer to warranty the car with these modifications. Can you go into further detail about that? Maybe I can convince my dealer to do the same. cheers

 

Dealer said as long as they sell the car, get the parts through them, they do the installation and i bring it back to them for repairs they will stand behind the work. This is a racing dealer and they have mechanics that have been with them for twenty years..they know what the car can handle... I hope.

 

Warranty claims CANNOT be denied unless the manufacturer can PROVE that any failure was caused by an aftermarket product in question. Manufacturers and dealers can blow alot of hot air, but their claim wouldn't stand before arbitration or a courtroom, unless, of course, the aftermarket product did indeed damage the car.

If an aftermarket part in question damages your car, then the liability falls upon you or any agreement that you have arranged with the aftermarket part manufacturer and/or supplier. You really need to have this agreement in writing and you need to be comfortable with this agreement.

 

VS,

The car with the 450rwhp, Do you know what the hp at the flywheel was or equates to?? I live in Ca and am going to bring my turbo to the racers group to do the unichip also. I already have the Fabspeed exhaust installed and a BMC air filter and was curious about the HP figures. Looks like the car dyno w/ the 450 rwhp should be close to mine after the Unichip???

Thanks

Andreas

 

Andreas,

AFAIK, the "rwhp" number depends on the particular dyno used to measure it. There are variations among different brands i.e. Dynojet vs. Dastek and even among different dynos of the same brand.

As a rule of thumb, 18%-20% loss from flywheel to rear wheels can be used. This is consistent with the stock car dynoing at 340 rwhp. Based on that, 450 rwhp should translate to 550-560 hp at the flywheel. This is very high for a car with stock turbos. So this *could* be a case of overenthusiastic tuning (read the engine/turbos will not last long). I'll contact the tuner directly with regards to that car and try to find out if it had GT2 turbos.

I think you are in a very good position since TRG guys are the experts --- I'm sure they'll give the maximum your engine can produce staying within a reasonable safety margin. I will be really surprised if you turn out 450rwhp, but I do wish to be surprised

 

VS,

When I spoke to them directly they had thought we could obtain 510-530 maybe 540 hp @ the flywheel without changing the turbos. They stated every car was different and we would just have to see as we were actually tuning it. They also stated whatever we did get that I could do a second chip as CJV has which would be on an A/B setup in the dash that would be switched when using a higher octane fuel that would allow the turbos to create more boost and about 10-15 more hp. I have not heard of this new bolt in item that was mentioned above?? I am curious of this???

Thanks

Andreas

 

Guys:
The car at IDA that was 450 RWHP was not working right and they had to undo the unichip installation. In fact they also pulled out the Fabspeed and put back the stock exhaust.

The 420 RWHP car runs great.

AT

 

[quote] The car at IDA that was 450 RWHP was not working right and they had to undo the unichip installation.<hr></blockquote>
Al T., thank you for this information. Somehow, I'm not surprised.

[quote] The 420 RWHP car runs great.<hr></blockquote>
Yours? BTW, were that you with a nice silver 2002 TT at the Tobay Beach autox last Sunday? If so, thanks for letting me listen to Fabspeed exhaust <img src="graemlins/wave.gif" border="0" alt="[byebye]" />

 

Yes - If you were the guy who wanted the ride to hear the Fabspeed - sorry I could't do - had to get home to Wifey.

Will be at the 4/7 event.

AT

 

Hi Guys, I had sometime today and did some research. Spoke with Two tuners evo (Todd owner) in AZ and also spoke with Mike Carillo (Brand manager for CEC that dists the Techart system. Both very knowlgeable and car nuts like us.

I cant make up my mind both make good systems from the feedback they gave me. Both stand strongly behind there products. Evo with there return policy and Techart with there warraty if some thing breaks (dealer installed). Evo has 3 levels and so does techart. They seem to make the same power peaks and the slopes of dynos are about the same. But Techart goes further by offering a modified K16 with a K24 inlet thus accepting a GT2 100 cell 530Hp. I guess its amatter of personal preference and bank account. If you want to get GT2 power about 35-40HP more I sway towards evo. However; the X50 I have is already there so I think I sway towards Techart even for 19K. Since every one is concerned with pushing the K16 to 1.0 bar. The Techart is 1.1bar and 1.2overboost but with modified K16.
Both say the front dif is only good for 540 to 550. The evo pepole say about the same as techart 1.0 is about 500 to 510hp. Im trying to remember everthing, I hope Im not misqouting if I do its not intentional.
But evo is $3500 versus $19K.
Also was told today that 996TT does about 0.6bar and 0.7 overboost. My X50 is 0.7 bar and 0.8 bar ovrboost on my dash. But, one gentleman did say that they have seen stock turbos come thru with 1.0 bar hmm,, some body at the factory was having some fun that friday. does any one have any info what is the max sustainable boost for 996TT ,, sounds like 1.1 is max
Thanks
Jeff

 

JEFFMD,

X50 includes K24 GT2 turbos. Why do you want to change to smaller K16/24 turbos? Both the Evo and TechArt packages are intended for regular TT's with K16 turbos and the stock Turbo exhaust.

As far as I understand, all you need to do to obtain 530-540 hp in X50 car is to get it tuned with Unichip. The price should be in the range 2,000 - 4,000 depending on where you have it done. Well, *maybe* you'll need to replace exhaust. Again, your exhaust is supposed to be the same as GT2's - how bad can that be?

Since you've already paid around 20K to have the X50 goodies, why pay more to (possibly) downgrade?

 

JeffMd,

I would agree with VS, stay with the K-24's and modify them. I would possibly have them extrude hone internals and subtle port job. Have the impellors upgraded to the Skyline type, it would flow much more air. And an ECU upgrade with Unichip or Garrett.

Using the k-16/24 style turbos would be going backwards, as you would not have the airflow of the modified k-24's. The k-16/24 have a pronounced lag down low, using the k-24's would eliminate the pronounced lag.

In the end with these mods you will be well in the 550 hp depending on exhaust.

Oak