Hi -

I bought my 2001 996tt which I bought from a member on this forum. I was told that this car had the reprogrammed chip that boosted the turbo. Over the weekend during our Father's Day drive through Blue Ridge Mountain Road in the Northern Virginia area, I was able to hit 0.9 bar. Does anyone know if stock 996tt can hit 0.9 bar or does my car have the ECU re-mapping? Thanks.

Kiet

 

You have a "flashed" ECU. Stock doesn't run .9bar.

 

Is ur car an X-50 then yes you can hit .9 in stock form! Is it humid when you were driving? What elevation were u at? Keep in mind weather & elevation impact are boost levels. For instance I have a 1.1 bar tune and when it's 115+ in Scottsdale sometimes I only hit.9 bar WOT. But sounds like u do have a tune!

 

Thanks. That's what I thought from what I've read. Previous had told me he thought the car was flashed as well. Thanks again.

Kiet

 

No - my car is a 2001 so no X50 option. Thanks.

 

Lol I should of caught that i wasn't paying close enough attention that it was a 2001.

 

Actually, great point! Yea, it really depends on altitude and temps too.

 

this thread makes me wonder if my car is chipped.. bought it with only 1000miles on it, but i 've seen it spike 1.2bar briefly (but the climate is much colder here). this is on a 2005 turbo s

 

It is most likely just as you said, a "spike". On stock fueling your car would be running lean at 1.2 bar. its most likely just a small spike. The 2004/5 had a slightly more agressive tune, which would probably explain that.

@OP: Your car is probably chipped. 0.9 bar in the mountians seems right. The air at that altitude is thinner so its harder for your turbos to make your max (requested) boost. When I went on a car rally locally this saturday, my 1.1bar tune only got to 0.9 bar at 4k feet. I was barely beating my friends M5. As soon as we came down from the pass, I was getting a couple car lengths on him once again! Be a little careful. If you go too high and go WOT with a tune you could be running your turbos out of their spec! If they get spinning too fast they're just making a lot of hot air, and hot air can = knocking! If you're doing some hard pulls in the mountians, put some race gas in for safety (thats what I do!).

Cheers

 

Stock is 0.7Bar or 10psi. Chipped your going to see .9-1.0 bar or about 15psi. Stock won't hit that unless weird altitude etc. be glad that's done, it's the best mod and costs $1000-20000 depending...

 

20,000??? From who?

And I thought EVOMSit was overprised at $3500 a tune...

 

My stock 03 Turbo can produce 0.9 bar boost for seconds though it takes hard acceleration in say 4th or 5th gear at around 8K feet above sea level. At lower elevations (approx. 4K) I've observed 0.8 bar boost.

At sea level 0.7 bar is as much as I've seen.

Some owners in southern CA report seeing 0.8 bar, maybe even 0.9 bar boost on the mountain roads down that way

Not sure where you are the conditions but 0.9 bar is not proof positive the engine's been "chipped".

The DME will allow more boost if the driver's torque demand requires more boost to satisfy. More boost, but of course with limits.

 

.7 is the highest I've ever seen on my car with K16's and basically sea level.

 

Haha oops. Yeah 1000-2000 not 20k. That "tune" had better be for 800hp

 

Thanks everyone for all the input. This just reaffirmed my car does have the ECU flash as told to me by the previous owner.