Hello again guys. I went to Stiegemeir's (the well known porting, tuning, dynoing place) today. First, I gotta say, this place is great! The guys were very professional, nice, and very knowledgable! I got to see several Gen V M62's off of Cobalts and Ions that are being worked on. They showed me their porting work, as well as a fully polished blower. Let me say, you've got to get your blower done by them!!! You'll see an increase in air flow, plus the polished exterior rocks!!! Sorry for the advertising, but I think it's somthing that us cobalt/ion owners need to look into doing!

Anyway, time for the numbers. Both runs were made on a Dynojet, one in 3rd gear, one in 4th. Also, dyno sheets are posted below!

3rd gear pull: 232.7whp, 198.6wtq

4th gear pull:232.3whp, 196.9wtq

I want to re-clarify, that this is on a BONE STOCK S/C SS, no changes made from the factory-under 1700miles! The 4th gear pull was done immediately after, with no cool down. Like most of the ones I see, it starts somewhat lean, and is in the high 10s afr by the end. This is with a slipping clutch, it barely grabs anymore. I call it the "sponge". Take care guys.

 

very nice

 

Nice numbers. You can host the charts here.

 

Nice indeed!

 

How do I do this? I couldn't figure out how to attach the pictures to the post?

Thanks for the responses so far guys!!

 

host them in the gallery here, then link them to your post

 

Gotcha, I'll try that now.

 

Ok, here's the 3rd gear pull:

https://www.cobaltss.net/gallery/fil...obaltSS004.jpg




Here's the 4th gear pull:

https://www.cobaltss.net/gallery/fil...obaltSS005.jpg

 

edit for everyone

 

Great #'s BTW

 

Those number are outstanding. Talk about chevy underating these 2.0's. Does anyone have a dyno with just an intake done or intake and exhaust?

 

yes there are lots out there ... do a search for "dyno intake"

https://www.cobaltss.net/forums/show...ht=dyno+intake

 

Thank you for getting that posted for me!! I don't usually post pictures or videos, so I'm not familiar how to. Thanks again!

 

i'll be getting my dynoed right After I install my Injen CAI. Just waiting on fed-ex to get it here.

 

no Problem Makes it easier if you have a link to a hosted picture or a hot linked picture(from another site) you can use these buttons

 

Nice job!! You beat my stock numbers No wlets add 45hp and 63lb ft of torque!!

 

Wow, very informative. Thanks again!

 

Sounds good to me,your check is in the mail, sir

 

Nice numbers...welcome to the club

 

Darn It Man, Those Are Great #!

 

Nice numbers dude.....!!

 

Thanks guys! I really wasn't expecting the numbers to be that high!

 

Damn Bad , thats awesome man . All those low predictions musta ticked your SS off

 

4th gear is the 1:1 ratio right? How did you dyno higher in 3rd then? Also, how is your clutch slipping at 1700 miles? And last, what did you do to prepare for the dyno? I.E. Filter removal, anything? Thanks, good numbers!!!

 

Great numbers man, congrats!!! Still can't believe how GM lowballed these cars.

Greg