We got a chance to tune the cobalt today with our new HP tuners software. We picked up 100 ftlbs of torque over stock and 35whp. We were running roughly 23psi of boost on the stock turbo. 93 octane fuel. The gains you see below are very common for turbos being pushed to its limits, the torque gains in the midrange are massive, yet horsepower doesnt go up nearly as much. The car is a LOT more fun on the street.

Modifications to the car:
HP Tuners software tuned on our dyno
Synapse Motorsport 3" catless downpipe
Synapse Motorsport 2.5" aluminum charge piping
Manual Boost Controller at ~23psi

final results:
360 ftlbs/275 whp
stock:
260 ftlbs/240whp

 

nice gains!!

 

holy crap!! Good work. Can't wait to see what turbo swaps are going to look like. How does the direct injection like the extra boost on stock turbo? when do you expect to reach the DI limits?

 

the fuel system has shown no signs of leaning out at this level, and we are running it a bit richer than stock.

 

3 words..

hit the track...

some more words..
i shat..

even more words.. catback, intercooler and intake i don't care what anyone says thats good lol even just based off the hp gains.. 35 whp on 1k worth of mods.. thats pretty good.. a turbo swap is going to be unreal on these cars... i think we're going to find out how much these engines can take very fast

that midrange power is crazy low end not so much

 

WOW!! This just made it 10x better that I picked up an SS/TC. Now aslong as the motor can hold up and the tranny, I can seriously see an intake, catback, aftermarket intercooler, and some DR's SS/TC run deep into the 12's. And that is with a tune.

 

nice gains

you log it w/ AFR ratio & boost pressure?

 

nice numbers , that thing must pull nasty.

 

what are your idc's?

and is that to the flywheel?

 

nice peak #'s...man that turbo is really dying up top though

 

holy *****...that's a ton of torque

 

i have hptuners... how do you get the update.

 

is that wheel or flywheel hp?

 

wheel hub

 

Ah! makes me want to go trade my ss/sc in on the ss/tc!!

 

I didn't think they would be able to tune this ECM for much longer then this! Is this a beta or something? Either way it looks like that small turbo is going to hurt us. It is nice to know that the fuel system is keeping up though. Thanks for posting the dyno and good torque number!

 

I knew it was coming. Stage 2 guys are fucked.

 

so now combine this catless dp..with a 3" exhaust like hahn's........and ic upgrade....

 

I think so. Time for some twin screw action for the SC guys (is that even an option?)

 

i think the catback might also be hurting the car a littel bit judging on hahns numbers full 3" exhaust will do this car good

 

Expensive, but yeah its out now. Sucks to have to spend about $4000 for the mods to consistently run with a stock turbo SS/TC, then have the big turbo ones untouchable by damn near any normal LSJ.

 

And add that with a CAI and a nice HP tune, and you have a BEAST!!!

 

Stage 2's won't be the one's who are fu**ed when GM checks their ecu history for changes ...

(but for those who don't care about voiding their warranty, nice work Synapse!)

 

nice...verrryyy nice!!

 

great job Synapse hope to be getting both those products and the tune soon love the numbers