My Viggen still have heat soaking issues even after mods to deal with it. It is better than factory but if you drive it and let it sit for anything less than 6 hours or slow city driving in any weather including winter the power/boost is greatly reduced. At first it pulls hard like it should then after either of those or after a while it just feels very sluggish. This is really annoying; Any ideas as to why?
Mods: rebuilt engine w/Je forged pistons, Stock Tune, T5 cams, 28x8x3.5 IC in front grill, Forge BPV, New MAF, New coolant temp sensor, New front O2 sensor, GS V2 3" DP, 3.5" cone filter, All heat shields on, Always 91 octane,
Mods: rebuilt engine w/Je forged pistons, Stock Tune, T5 cams, 28x8x3.5 IC in front grill, Forge BPV, New MAF, New coolant temp sensor, New front O2 sensor, GS V2 3" DP, 3.5" cone filter, All heat shields on, Always 91 octane,