Jump to content
SAU Community

Recommended Posts

if you want your stock turbo to last you then 10 psi is all good, more than that starts to get unsafe, although i have heard of peoples stock turbo lasting ages on 14 psi :)

but yeah, 10 psi is safe, i wouldnt go more than that :laugh:

I plan running mine dual stage, 7psi for low everyday use and 12 psi for drags and when I want performance. What do u all reckon? Stock everything execpt turbo back exhaust and soon to have fmic

12 psi is a good one to have with dual stage

i use it and dont see the ecu going rich and retarded like it did on 14psi !!!

so 12's orite, if you really want perfection checks the afrs, tune, safc, etc but really just for drags yeah man 12's just fine if u running 7 psi everyday

p.s any more tho asking for trouble without a bigger front mount and basic mods

Edited by Zas)-(
What about with a stock exhaust BUT with a R34 SMIC, what boost?

7psi....as I have been kindly directed by members of this forum :verymad:

Its no good for your turbo to be trying to blow through a tiny pipe that has a few 90 degree bends.

What happens when you blow through a small straw a lot harder than normal??........ Your face goes red and heats up.......so does your turbo :thumbsup:

7psi....as I have been kindly directed by members of this forum :D

Its no good for your turbo to be trying to blow through a tiny pipe that has a few 90 degree bends.

What happens when you blow through a small straw a lot harder than normal??........ Your face goes red and heats up.......so does your turbo :D

but when i put the R34 SMIC it went to 8psi automatically, so surely 1psi more cant hurt it can it?...Im no expert tho, so any thoughts would be appreciated.

but when i put the R34 SMIC it went to 8psi automatically, so surely 1psi more cant hurt it can it?...Im no expert tho, so any thoughts would be appreciated.

Are you sure your boost went up when you put the smic on? or was it the BC that you put on.

I did this same mod to my car, and boost didn't go up.

I'm no expert either, but it doesn't take an expert to tell you that your performance gains will be minimal until you do your exhaust.

Sure you can bump the boost up a bit, you'll definitely feel it pick up better down low, but overall performance won't increase by much, along with you putting unnecessary strain on the turbo.

Are you sure your boost went up when you put the smic on? or was it the BC that you put on.

I did this same mod to my car, and boost didn't go up.

I'm no expert either, but it doesn't take an expert to tell you that your performance gains will be minimal until you do your exhaust.

Sure you can bump the boost up a bit, you'll definitely feel it pick up better down low, but overall performance won't increase by much, along with you putting unnecessary strain on the turbo.

yea was before i got boost control & still had std dual stage bleed 5/7psi...as soon as i out on SMIC i noticed it hitting 5psi alot earlier & also went to just under 8psi instead of 7psi

yea down low is awesome now & i agree without an exhaust not much gain in power is to be had especially in higher revs but just want to know whats a safe boost til i get an exhaust and power fc later on

As I said when I had a full exhaust and pod filter 10psi was fine had no dramas with it whatsoever. I wouldnt go any higher than that on the stock cooler though as there not very good at scrubbing the heat especially as we are getting into the hotter period of the year. I would leave your boost as is till you get an exhaust.

Cheers

Chris

As I said when I had a full exhaust and pod filter 10psi was fine had no dramas with it whatsoever. I wouldnt go any higher than that on the stock cooler though as there not very good at scrubbing the heat especially as we are getting into the hotter period of the year. I would leave your boost as is till you get an exhaust.

Cheers

Chris

1001 threads on this....serach..

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 account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Like a Stagea, but not as cool! Hope you have enough garage space for this, or is something going to leave to make way for it?
    • The new project has arrived. I have wanted one of these for such a long time, well before that meathead Clarkson drove one in Africa. I really wanted an E34 but I have some medical issues that mean I *really* can't bump my head and the lack of airbags in the E34 made it just too big of a risk.  I don't know why I've always liked these older touring BMW's to be honest, but man I love this car. She's been pretty well maintained for her 243k's with what appears to be only a single oil leak at the oil filter housing gasket. It has a bunch of updates including later model bumper and headlights, 7 series billion-way adjustable seats and it came with a few spares and another set of wheels with legal tyres. I got a unregistered car permit from the RTA and drove it back from Canberra on Saturday.                   First cab off the rank is cleaning it up for blue slip. I dont know how picky they'll be but I figured I'd clean the headlights, fix the oil filter housing gasket, replace the speed sensors (throwing errors) and swap the OE wheels (the M Sport wheels have a big chunk out of one of the tyres.) I also need to replace all 6 gas struts - 2 for bonnet, 2 for hatch and 2 for hatch glass. The car tries to eat me whenever i open any of these. My plan for this car; Ultimately, this is a budget car. I can't afford to throw lots at it and its because I have another car that I got this, if something breaks its no big deal. I will just maintain and repair it really. But eventually I want to do a manual conversion. It actually looks pretty straight forward for E39's and the trickiest part will be sourcing the parts.  I do need to replace some suspension arms or bushes because wow, she's a floaty old girl. She's also fantastically slow. Like really, really slow. When pulling back out on to the freeway on Sat after a quick pull over I needed to wait until no cars were visible before going.  Oh, and the guy I bought it from had a gorgeous R31 GTS-X in the garage. 
    • Do you have a picture? I assume it is a breather for gearbox oil as it expands, it should have a vacuum line run nice and high in the engine bay (R32 GTR has it on a top bellhousing bolt)
    • Hi all, I am putting an r33 gtst gearbox into a VL and have noticed what looks like a vacuum barb on the box (on top in the middle). Suspecting that it's a vacuum line but I'd like to double check, if someone could confirm the function of that would be great. Cheers in advance.
    • I’d love to find some where that can recover the dashes to look brand new and original. Mine has a very slight bubble, nothing compared to some I’ve seen though 
×
×
  • Create New...