Does anyone have the BSR tune, and if so what kind of boost are you noticing. the kit is supposed to be between 22 and 24 psi im spiking 22 and holding 20.any reason why?

 

I'm not sure. I'd ask them over at Hahn probably. What octane tune did you get?
I have the BSR tune. At first mine spiked up to 24-25 and settled at 22ish.
Now it just goes up to 22ish and holds.

 

mine goes to about 22 or so

depends on the weather

i don't think you will see 24lbs with this tune

 

That does seem a little low. I assume you checked all your fittings especially the one at the intake in the front of the engine it is a worm drive clamp and my stock clamp failed there, sprung and was replaced. It doesn't show you have upgraded piping on your sig? Up here trifecta and bsr are 25psi thin air and mine has been as high as 27, So there is a cpl lbs of variance? might be normal and go back up for you in different humidity and outdoor temps??

 

I am thinking about purchasing a PPC tuner from Hahn sometime soon. For those of you that have the PPC tuner are you happy with the product? Its a lot of money just curious if it is worth it. Also what are some numbers you are seeing with this tune?

 

You're going to get a LOT of answers saying it's NOT worth it and to get Trifeca or custom tune with HPT.

I have the BSR tuner and have about 15,000 miles with the Tune. I don't have a single issue with it. Very nice product. The midrange torque is awesome! I also did a factory airbox mod which the car responded well to.
I don't have any numbers to give you from MY car. Over on the Sky and Solstice forums there are some dynos. Gain is generally around 45HP to the wheels.

 

Thanks for the input. I like the products that Hahn produces. I have a Cool Ram Intake from Hahn and was very pleased with the product. Just looking for a good tune now. I like the PPC for the fact that you can return it to stock when ever you want for dealership visits.

 

Higher alt will increase boost to keep the same power level, so up at high locations... you're not making more hp with the increased boost...

Charge piping will not increase boost, just airflow is smoothed out.....

The BSR did go to 24 or even 24.5 for a few months then 20-22 steady...... It's a learn down.. and as for 93 ocatne vs 91, there's but a 1-3 whp difference.....

My car has every possible bolt-on and it only makes 287 whp at 21-23 psi and low alt, with HPT so go figure.....

 

No i dont have any upgraded piping at this time , but im going to check all my fittings and see if i have some sort of leak. thanks though

 

all these boost readings are pending the accuracy of the stock guage in each car which I am sure is not dead on ***** accurate.

 

BSR makes around 276 whp on 91 octane and 284-286 whp on 93 octane according to a few different dyno sheets I have seen. The stock Tuning was designed around 95 octane fuel according to psychostevo.

 

Without touching cam timing, I see in my logs, IIRC, roughly 20.5psi steady (+/- .2psi) on my setup (downpipe and K&N drop-in) below 5500rpm. That's taking the MAP readings and subtracting out ~99kPa for atmospheric and converting it to psi with the constant 1kPa=0.145037738psi. I live 600~800ft above sea level.

Does the BSR tune do anything to cam timing or is a boost and timing only tune?

 

It keeps the stock timing table . Approx 10* advance at WOT. It also keeps the stock cam tables. That is why most people gain only 25-35 whp over stock not 50+ whp like a good custom tune does.

 

I've seen BSR dynos 40-45whp gains. Still not as good as a custom I know. But I don't think it's as low as you're saying.

 

Depends on the fuel used and on Hahns website it shows a 45 whp gain ( catback was on the car too) but that stock TC also made almost 255 whp and 270 wrtq stock and those results were most likely on 93 octane not 91. Also if you look at the power curve and torque curve they are pretty ugly if you ask me. http://www.turbosystem.com/ProjectVe...S-TC%20PPC.htm

 

Try this link https://www.cobaltss.net/forums/showthread.php?t=169374 yeah looks terrible 323 whp 361 wtrq. in the 12's half a year before anyone else looks pretty damn good to me so how is it so inferior again?

 

yeah 323 wheel hp looks very terrible to me also

and 12.9's in the heat of last summer is very dam good

amazing how many people have to bash the bsr tune, I have had it since last august and not one issue even with my upgrades