happydude303

iTrader: (1)

when my car was first mapped it held 1.6 bar and no i.ve noticed it does quite make that all the time especially in second gear and some times in 3rd gear, no its not the solenoid as ive had a new perrin 3 port fitted and when it was done, im running an 18 g turbo could this be the wastgate becoming weak and opening to early or could it be somthing more simple or worrying and if it is the waste gate what one do i need anyhelp would be great cheers

tweaks

iTrader: (7)

what does it drop off to ?

happydude303

iTrader: (1)

its not dropping of it just dont make 1.6 in second it makes about 1.4 -1.5 and then sometimes it will make 1.6 in 3rd but sometimes it will make only 1.5 but in 4 and 5 its fine

tweaks

iTrader: (7)

what kind of boost control are you using ??

happydude303

iTrader: (1)

sim tec ecu is running all of it

happydude303

iTrader: (1)

and thats only 8 months old lol but the turob was second hand

happydude303

iTrader: (1)

any one ideas

tweaks

iTrader: (7)

i'd have a chat with whoever mapped it and see what they say.do simteks have in gear boost control ? thought i'd read they did

happydude303

iTrader: (1)

yeah i have and they think the waste gate actuator but id like second opinion but im thinking i need to get a uprated one form some like turbo dynamics

tweaks

iTrader: (7)

if it was weak actuator you'd expect it to be the same in all the gears tho.had a simalar thing on mine after it was mapped but i turned wastegate duty up a bit and all is well

bluenose172

iTrader: (2)

This tends to be normal on cars with ECU's that don't have per-gear boost control, but I think the Simtek has per-gear WG tables, maybe they need a tweak. It might be that 1st/2nd and even 3rd are too short to build the required boost though.