I have problem with my FPR, my engine is 4G92P, with harder valvesping & P&P head modification, currently my FPR default reading is ard 50psi, im using 2nd hand arospeed FPR and im using honda civic (denso) fuel pump, are my reading reading normal or the FPR diaphragm broken or damage due to leaking or something??
p/s: if i tighten it, it can only compress to max 52psi & if i loosen it, the indicator pressure also shown decrease less than28psi, the question is...
1. Fuel pump problem or
2. FPR diaphragm problem?
3. Where can i find the Arospeed diaphragm kit?
Thanks in advance...