ULLCEE INFAMOUS Member 40 Member For: 6y 2m 16d Gender: Male Location: Gold coast Posted 26/12/23 10:53 AM Share Posted 26/12/23 10:53 AM Hi guys hope everyone had a mint and safe Christmas 💯 Just wanted to ask if anyone has experienced this with their car,I have a ba xr6 turbo has valve springs pump gears head studs 1000cc injectors 460 walbro Throttle body relocation 3inch pipeing Big cooler 4inch dump High flow cat 4inch exhaust 45mm turbosmart hypergate Car was originally tuned to 15psi before going external it had a 7psi spring in the waste gate when first fitted and it never boost spiked or went to limp mode. After fitting 14psi spring it comes on boost hard but doesn't hit gate as it goes into limp and after a little bit it comes good again just want to kno if anyone has experienced this at all any help will be much appreciated cheers guys Link to comment https://www.fordxr6turbo.com/forum/topic/97165-ba-xr6-turbo-external-wont-open-hits-limp-mode/ Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 16,337 Member For: 10y 3m 6d Gender: Male Location: South Australia Posted 26/12/23 12:09 PM Share Posted 26/12/23 12:09 PM (edited) It's a tune related thing. 50% of a 7psi spring = 7psi + 3.5psi. 50% of a 14psi spring = 14psi + 7psi Your wastegate duty cycle table has too much in it down low for the harder spring. Instead of having 80% in the lower rpm area (that it probably has) it needs 20%, that it probably needs. Edited 26/12/23 12:10 PM by Puffwagon Got smacked with the tardle stick. Link to comment https://www.fordxr6turbo.com/forum/topic/97165-ba-xr6-turbo-external-wont-open-hits-limp-mode/#findComment-1721535 Share on other sites More sharing options...
ULLCEE INFAMOUS Member 40 Member For: 6y 2m 16d Gender: Male Location: Gold coast Posted 26/12/23 12:47 PM Author Share Posted 26/12/23 12:47 PM Cheers puff so I'm overboosting?and if I run a smaller spring it should be ok?it's only sometimes when I get upit,it goes into limp and other times it gets up and goes but doesnt seem to get on gate?it has a pcm tech tune on it for 15psi just shy off 500hp Link to comment https://www.fordxr6turbo.com/forum/topic/97165-ba-xr6-turbo-external-wont-open-hits-limp-mode/#findComment-1721537 Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 16,337 Member For: 10y 3m 6d Gender: Male Location: South Australia Posted 26/12/23 01:04 PM Share Posted 26/12/23 01:04 PM That's what it sounds like. You can tune some leeway with the boost and yours might have some. Link to comment https://www.fordxr6turbo.com/forum/topic/97165-ba-xr6-turbo-external-wont-open-hits-limp-mode/#findComment-1721538 Share on other sites More sharing options...
ULLCEE INFAMOUS Member 40 Member For: 6y 2m 16d Gender: Male Location: Gold coast Posted 26/12/23 02:40 PM Author Share Posted 26/12/23 02:40 PM Ok cheers I might try a 10psi spring and hopefully see if that changes things thanks again Link to comment https://www.fordxr6turbo.com/forum/topic/97165-ba-xr6-turbo-external-wont-open-hits-limp-mode/#findComment-1721539 Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now