S2000 STR prep resource
AP1s, especially the early ones, run fairly rich. I can't speak for AP2s, however.
Originally Posted by NFRad' timestamp='1318905651' post='21079034
Would the AFR need to be looked at with this no muffler setup, just to ensure it doesn't get to any danger zones, 15's?
I'd imagine there's much less back pressure with no mufflers back there. Or am I completely off here.
I'd imagine there's much less back pressure with no mufflers back there. Or am I completely off here.
Originally Posted by NFRad' timestamp='1318905651' post='21079034
Would the AFR need to be looked at with this no muffler setup, just to ensure it doesn't get to any danger zones, 15's?
I'd imagine there's much less back pressure with no mufflers back there. Or am I completely off here.
I'd imagine there's much less back pressure with no mufflers back there. Or am I completely off here.
I have a toda header, 70mm hfc, and a t1r 70r exhaust with a k&n

My car is still very rich and is going to see nice gains from the 2012 ecu rule change.
Btw this dyno was before the apexi neo. My cross over is at 5k now. I saw a dyno of a ap1 with bolt ons tuned on a haltech ps1000 and it gained 28whp! Can anyone say 2600lbs with 230-240whp?

My car is still very rich and is going to see nice gains from the 2012 ecu rule change.
Btw this dyno was before the apexi neo. My cross over is at 5k now. I saw a dyno of a ap1 with bolt ons tuned on a haltech ps1000 and it gained 28whp! Can anyone say 2600lbs with 230-240whp?
I have a toda header, 70mm hfc, and a t1r 70r exhaust with a k&n

My car is still very rich and is going to see nice gains from the 2012 ecu rule change.
Btw this dyno was before the apexi neo. My cross over is at 5k now. I saw a dyno of a ap1 with bolt ons tuned on a haltech ps1000 and it gained 28whp! Can anyone say 2600lbs with 230-240whp?

My car is still very rich and is going to see nice gains from the 2012 ecu rule change.
Btw this dyno was before the apexi neo. My cross over is at 5k now. I saw a dyno of a ap1 with bolt ons tuned on a haltech ps1000 and it gained 28whp! Can anyone say 2600lbs with 230-240whp?
Shhh... Don't tell our secret! It's been a while since I say that graph it might of been in the mid-range but like you said that's where we need it. I'll have to look around and try to find it again. The proposal got linked somewhere in the racing forum. I saw it 2 days ago.
So 21 ft/lb of tq would make you happy Dave? Yup you might get your dream come true... Just gotta fork out the money for the tuner and they could prolly etune the car. 
Let's hope evans come through.

Let's hope evans come through.



