Hi Guys,
Sorry for keep you waiting for the information about the T1R header. Now, I would like to tell you guys where we are at
To make a 4-1 shorty header you can say it is easy or you can say it is hard. By using mendral bent with bigger pipes (sounded simple) are not the only facts to build a high performance header. The place where it joins (early joints or late joints) and the length of the pipes (shorten or extended) where it connects from the top flange to the collector affects the performance. Little bits and pieces count so we concentrated in this few points to build the header.
The new prototype has innovative
38mm (1.5") primaries (1st prototype 32mm and Stock is 28mm) and it is the biggest pipe that has been used with the L15A engine (correct me if I am wrong). We made the pipes longer and length as equal as possible for better mid-range torque. We have smoothen out all the exhaust inlet / joints to ensure smooth exhaust flow to get as much power as we can.
Here are some pics of the NEW prototype and the production model will look very similar.
-You can see the place where the 4-1 joins together, we have made it as low as possible to achieve as much power as possible.
-inside exhaust all ported to ensure there's no turbulance created by sharp edges or left over from welding.
I will be dynoing the car soon and will keep you guys updated.
Thanks
Ben