sideways32

the plugs came gapped correctly, the person i brought the coils off said they were good cond. im going to buy a waste spark setup to get rid of the coils problems soon, ill see if this helps, the old rb25de used to run average in the car, thats why im thinking its the fuel pump. recently changed the fuel filter because it was blocked with shit, ill have to get someone to take it to my mechanic cuz ive lost my licence for sustained loss of traction for 6 months

hey, i recently done an engine conversion on my r32 coupe gts25. took out the rb25de and replaced it with an rb20det crate engine from japan with 114,000ks under full boost, standard 8psi there seems to be quite a bad miss. its done this since i put the engine in and i was just wondering if anyone could tell me what it might be..? the car has a full 3" exhaust, a front mount intercooler kit, pod filter and a 6 puk clutch. i have changed the spark plugs and today i put some replacement second hand coils in but it didnt make a difference it misses driving on vacume and on full load (full loads worse by far)... i was thinking about getting a 500hp walbro fuel pump as the body has done 260,000 any help would be good. cheers, Daniel