TauhuTauhu said:
below 3k sucks big time....3k-8k smooth and powerful
tauhu, your pipe too big lah... you should have stick to 1.5" for the primary and 1.5" for the secondary also and finally 2" for final.
power comes from 2k to 8k
oh I nearly forgot you running gze ignition with wasted sparks,,.....???? and BT ecu for fuelling ???? like this may be would be different from mine lah...
I just got BT ecu and made convertor adaptor........ like shxt man ..... due to lack of time I did not install the original trumpets, which was about 6 inches.
The drivability of blacktop without long intake runners is very bad. My pure silvertop plateform can outrun my grey-top without trumpets anytime, anywhere, any revs, any condition, any throttle, etc etc etc.
Just like the extractor issue, I am convinced that blacktop when running open throttles need very long runners... say 12 inches as oppose to the original 6 inches.
Some people have driven my pure silvertop before and is amazed by the low rev.
As for concern over the high revs, I've got videos from Sepang with yolk, GT20v, shamburke, banzai, TRD16v, etc to prove ... no issues with any range .... my engine pull from low rev to high rev smoothly, timely, predictably.
BTW my engine pistons' rings are badly worn and I am loosing allot of compression.... yet all my rpm ranges are good.