Drivetrain Venting boost at WOT
#1
Venting boost at WOT
Good morning, i'm having an issue with my setup which is as follows:
- JMTC 47mm turbo
- Alta IC
- Catless DP with 3" exhaust
- Manic stage 3
- Forge BOV
- 1 step colder plugs
- Blocked PCV as per Tiger venting to atmposphere
Overall performance feels good when im not getting on it hard say 1/2 to 3/4 throttle, but when I go fully WOT the BOV starts to vent boost randomly in short bursts affecting the performance. One other detail is that my CEL is on and it is a catalyst emission code my manic tuner is checking that issue next week but I dont think it has something to do with what is happening. Any ideas?
- JMTC 47mm turbo
- Alta IC
- Catless DP with 3" exhaust
- Manic stage 3
- Forge BOV
- 1 step colder plugs
- Blocked PCV as per Tiger venting to atmposphere
Overall performance feels good when im not getting on it hard say 1/2 to 3/4 throttle, but when I go fully WOT the BOV starts to vent boost randomly in short bursts affecting the performance. One other detail is that my CEL is on and it is a catalyst emission code my manic tuner is checking that issue next week but I dont think it has something to do with what is happening. Any ideas?
#2
With Forge BOV, there are different springs for different boost pressures. Sounds like you have the softest spring installed... You should have at least the Yellow spring installed.
https://www.forgemotorsport.com/Valv...duct--826.html
Valve Spring color coding:
Green - 5-15 PSI
Yellow - 15-23 PSI
Blue - 23-30 PSI
Red - 30 + PSI.
https://www.forgemotorsport.com/Valv...duct--826.html
Valve Spring color coding:
Green - 5-15 PSI
Yellow - 15-23 PSI
Blue - 23-30 PSI
Red - 30 + PSI.
#4
#7
so I’ve been fighting this problem
for long time my self,
i even ordered a 30psi spring from forge still didnt Work.
Little back ground on my mini
12:25.1 compression
forge bottom end
high flow head
cat cams
47mm turbo
running 13psi
93 oct with meth
I’ve tryed the forge upgrade DV .
the problem I got with that
I was spooling the turbo backwords in higher boost .
Sound like a rally car with no blow off or dv
So my next plan is to get turbo smart bock off plate
an run a blow off valve over by the throttle somewhere
for long time my self,
i even ordered a 30psi spring from forge still didnt Work.
Little back ground on my mini
12:25.1 compression
forge bottom end
high flow head
cat cams
47mm turbo
running 13psi
93 oct with meth
I’ve tryed the forge upgrade DV .
the problem I got with that
I was spooling the turbo backwords in higher boost .
Sound like a rally car with no blow off or dv
So my next plan is to get turbo smart bock off plate
an run a blow off valve over by the throttle somewhere
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