Originally Posted by
jasoncsc
Hi Rody,
I am going to purchase a brand new VSR-04 from the surplus of a fellow hobbyist. I am going to run it in a tight track using 25% runner time fuel. I would like to pick your brains about:
1: Do I need to add head shims?
2: manifold/tuned pipe choice? Here in Hong Kong I can't get your tuned pipe set from shops which I am sure is perfect match to your engine. We have OS and Nova here. Because the track is not big, I am looking for acceleration than top end performance.
Thanks you
Hi Jason,
1) Normally you can also use the original head-shim setting with 25%, however if you distord the wire of the glowplug during use I suggest you add an extra shim of 0.1mm(copper color)
2) The OS 2080-SC with the original manifold will give you the power you need from the VSR04, if you need more topspeed then try the same pipe with the MR02 manifold.
Hope this has helped you further.