OK...Went from a YSi to a aftercooled T?? Long story short. YSi made 22 psi and over 670 rwhp. But low end seemed to be lacking. Maybe I was crazy???Between my s trim dyno and YSi dyno, they were prety much the same in power to 4500 then the YSi pulled away. (s trim and 13 psi 530rwhp)
So far best of 10.32 at 134 with the YSi and MT DR's. Still needed to tune the suspension for better 60'.
Anyway, now have the T trim with the aftercooler(no water yet) and seem to be making a max of 15 psi at 5800. It flashes to about 12 psi instantly then goes to about 15 and levels off.
Now when I am at the track the car will see 6600 rpm's. However, for now the pulley that is on there is maxing the blower out 55,000 rpm's at about 5,800 rpms. I ordered a larger pulley so I will put the T at it's max in the 6,600 range.
Is the aftercooler box robing a lot of boost? I expected over or near 20 psi.
Does it have something to do with the blower being spun so fast at such low RPM's?
Or is this right?
So far on the street it does feel a little better than the YSi considering less psi.
Also is there a point of too much timing. I have initial at 31* and the BTM at 1/2. Since I will be making 3-5 less psi and have a cooler charge temp due to the aftercooler do I add 2-3 degrees of timing :D or is that too much?? I run c-14 at the track.
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