82 Track Car transformation begins
04-23-2009, 01:45 PM
#46
Inventor
Rennlist Member
Rennlist Member
Stock S3 injectors are tan, too...
04-23-2009, 08:06 PM
#48
Race Director
Its interesting that both my "widow" and Tom's track shark made VERY similar HP numbers when using the stock LH-EZK, but Tom made far more torque? The widow made 294whp stock on a mustang dyno (full race exhaust, 928intl headers with mandrel bent 2.5" rest).....then made 302whp with the spacers.....however my afr's are all over the place...went from crazy rich to scary lean in the midrange & okay up top.....
04-23-2009, 09:01 PM
#49
Nordschleife Master
Brian, the size of the exhaust is what I think made his torque as high as it is. If he could trade some of it for HP I think he would be very happy.
04-23-2009, 09:17 PM
#50
Deleted
Rennlist Member
Rennlist Member
Thread Starter
I'm sure I've posted about my future car plans...but first..I think oiling will need to be addressed...accusump first...and then the exhaust..(headers/proper x pipe/ better rear pipes)...then probably the intake..(something with more flow capacity).....and yes, I would trade torque for more HP 
.
As far as the track day goes, this is our semi-annual track attack in Spokane at their newly re-done Spokane Motorsports Park. About 15 928s and the same amount of "other" makes. The track is basically hot all day, and we can literally run all day if we want....nice setup for tuning and learning the limits of our cars...an absolute blast. I'll likely be doing more SCCA stuff (Portland and Bremerton) next year as I haven't finished all the stuff needed to get the car to pass tech and I still need my novice license class.
I'll get the a/f curves from Brian...but they area basically straight shot somewhere between 12.5 and 13...
. As far as the track day goes, this is our semi-annual track attack in Spokane at their newly re-done Spokane Motorsports Park. About 15 928s and the same amount of "other" makes. The track is basically hot all day, and we can literally run all day if we want....nice setup for tuning and learning the limits of our cars...an absolute blast. I'll likely be doing more SCCA stuff (Portland and Bremerton) next year as I haven't finished all the stuff needed to get the car to pass tech and I still need my novice license class.
I'll get the a/f curves from Brian...but they area basically straight shot somewhere between 12.5 and 13...
04-23-2009, 09:48 PM
#51
Race Director
Tom-Colin
As a comparison here is the widows dyno sheets....the 1st run was with a non op flappy and NO spacers...the 2nd was with spacers and a working flappy....stock LH-EZK....with S4 cams, 928intl headers and a custom mandrel bent 2.5" stainless exhaust with only two small mufflers.... I was NOT expecting the AFR's to go SO lean compared to my over rich before....really odd, but they tend to mirror the same curves.....hopefully some tuning will correct the AFR's to a more "normal" level....
As a comparison here is the widows dyno sheets....the 1st run was with a non op flappy and NO spacers...the 2nd was with spacers and a working flappy....stock LH-EZK....with S4 cams, 928intl headers and a custom mandrel bent 2.5" stainless exhaust with only two small mufflers.... I was NOT expecting the AFR's to go SO lean compared to my over rich before....really odd, but they tend to mirror the same curves.....hopefully some tuning will correct the AFR's to a more "normal" level....
