As of 2 days ago i was able to break the tires loose bad in 3rd gear, @18lbs, and today i tried the same thing and it held traction pretty damn good. It KINDA felt like it was about to break loose but didnt. These are on street tires, same tire pressure. This is at about 390ish whp. This leads me to belive that something cant be right. The ONLY thing i did was change my plugs. Same gap except i used 7's instead of the 9's. (all i had for spare) No misfires either. Compression reads fine 205 205 202 200. All slightly lower than last, but its not the same gauge either.

 

Maybe the asphalt was different when you did it again, outside temps play big rolls too.

 

well thats the thing. Ive done it on all kinds. I know this is kinda a shitty way of telling power, so im gonna head over to the dyno once i get a chance. The air temp was actually SLIGHTLY cooler than last time. i guess i wont stress it too much for now. but its just in the back of my head.

 

I think that pretty much every day till i get in a race and then think nope all is fine.

 

i thought the same thing when i spanked a WS6 last night.

 

was the weather more humid or hotter? That is the likely cause of power loss.

 

the weather was about the same, actually cooler and less humid.