Stock 1G BOV upgrade
 

I just installed a boost guage today and a stock 1G BOV and it spikes at around 16PSI and goes down to 14.5 or so. Is this normal for a 2G?

Thanks

Re: Stock 1G BOV upgrade
 

What other mods do you have? But yeah its normal if you have a boost controller to do that especially on a fast spooling T25. I wouldn't worry about it as long as it comes back down really quick.

Re: Stock 1G BOV upgrade
 

Yeah I don't have any other mods yet. Just the new BOV, Boost Guage and intake filter (K&N Cone Filter).

I just don't want my EGT's to be too hot and then burn up my valves! So I figured I would check on here and see if you guys ran your cars for a while like that.

Re: Stock 1G BOV upgrade
 

You're fine, but it wouldn't be a bad idea to get a boost controller and keep it dialed in. I recomend the Joe P. MBC from www.boostcontrollers.com

Re: Stock 1G BOV upgrade
 

Oh I misread the situation... you dont even have a MBC?

I remember when I had my stock 7bolt, and a boost gauge and some mods I was making like 14PSI in first, then in second it would go to 16psi/17psi in 2nd/3rd/4th/5th but I had upgrade I/C pipes and exhaust which I figured made the difference in pressure

Re: Stock 1G BOV upgrade
 

I'm getting a MBC, I had one but it was a weird model so we didn't install it and I wanted the ball spring design S2kracka posted a link to. I should be getting it tomorrow.

The only thing that's weirding me out is (it could be my imagination) it seems like my vacuum has gone down like 1-2 PSI on idle, but I'm not 100% sure, that's not a sign of burned up exhaust valves is it?

My next step is to get an EGT gauge but I need to find a cheap exhaust manifold somewhere, maybe ported too.

Re: Stock 1G BOV upgrade
 

If you have a T25 turbo, then don't worry. You can never keep that tiny internally gated pos at a solid boost level, unless you set it down at 10psi.

Re: Stock 1G BOV upgrade
 

hm.....

Re: Stock 1G BOV upgrade
 

Yeah on my old 2G with the t25 I had it set to 17lbs or some shit and it would shoot up to around 20lbs for a quick second and then come right back down, and then after it hit 5000rpms it would beging to dropped because it was puking out. Get a different turbo or learn to deal with it, t25s suck.

Re: Stock 1G BOV upgrade
 

OK thanks for the tips guys, I'll probably be using the stock T25 throughout the winter but installing an EGT to monitor the temps.

Re: Stock 1G BOV upgrade
 

my caris all stock and my boost gauge goes from 13 psi and then 10 to redline