Jump to content
SAU Community

Recommended Posts

Hey guys,

how accurate are the standard R32 boost guages? Even after putting my 3 inch dump/front pipe in addition to the full 3 inch exhaust the boost is still only going halfway to +7. Surely with these mods it would have higher boost? How much gain would be had from boosting it to around 12PSI. I know of the issues with the ceramic wheels :cheers:

Link to comment
https://www.sau.com.au/forums/topic/62068-how-accurate-stock-r32-boost-guage/
Share on other sites

thats where your slightly wrong mate.

Putting on an exhaust on a stock turbo skyline will 100% give you a natural rise in boost to around 9-10psi up from the stock 6-7psi.

This is due to the backpressure being decreased massively and allowing everything to flow. Reponse it better too.

Cheers - ash

im getting 0.9 bar (13.05psi) from a pod and 3" (read with a HKS gauge). i bought the car as it is (Yesterday) so i dont know if ther are any other mods, cant see any from a brief look. is it possible that this boost gain is just from a pod and exhaust???

thats where your slightly wrong mate.

Putting on an exhaust on a stock turbo skyline will 100% give you a natural rise in boost to around 9-10psi up from the stock 6-7psi.

This is due to the backpressure being decreased massively and allowing everything to flow. Reponse it better too.

Cheers - ash

My R32's boost didn't change at all after pod, then turbo back exhaust and now FMIC. It reads 9.5 PSI on aftermarket guage.

Mine is abit weird...

I fitted a auto meter gauge myself and when driving im hitting 13~14 psi of boost...

mind you all i've got is cat back exhaust > airfilter >bov, nothing else...

....hmm hmm.....

Hasnt played up or anything but yeh....thought the r32gtst run 10psi stock and maybe the odd spike to ~12psi...

Thats funny cause the waste gate actuator on an RB20 is already round 10psi

And of cause response will be better with an exhaust.

thats where your slightly wrong mate.

Putting on an exhaust on a stock turbo skyline will 100% give you a natural rise in boost to around 9-10psi up from the stock 6-7psi.

This is due to the backpressure being decreased massively and allowing everything to flow. Reponse it better too.

Cheers - ash

they maybe 10psi, but the dont run that till you exhaust em

and just what planet are you from? The stock dump may be a restrictive POS but it aint gonna restrict it from getting to wastgate actuator opening pressure.

Perhaps if you ask him nicely Sydneykid will explain things for you...:flamed:

How does a larger exhaust explain the turbo running more boost than the actuator is rated at?

I don't think any one 'really' knows what the stock RB20DET actuator is rated at do we.

Its all speculation.

Even if we were to test it how would we determine it unless we were to get out hands on a bran spankin new actuator.

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

    • I'm normally copping my own abuse from neglecting my daily drivers. "Those suspension bushes will last a bit more", "Don't worry about the oil leak, just keep topping it up". The project cars I'm always doing things slowly on them as I'm wanting them to be done better, and neater, and nicer. Luckily I don't have to deal with 18 year old Matt's "Learning to wire" stuff in the project cars. And there's only one piece of wiring I'm displeased about in the Landcruiser, and it's about to be cut out... However, the box loads of parts that have been going through this place lately for the Landcruiser... Brake pads Brake Rotors Full handbrake overhaul Wheel Bearings Seals Swivel hubs Steering Boxes Half the suspension joints Shocks Air bags (Ones to go in the rear springs for towing) Water pump Timing kit Lower timing case Harmonic Balancer Radiator Lots of other little seals and shits Gas struts for the bonnet New power window switches And god knows what else I've forgotten... Ha ha ha I have my fingers crossed the pinion seals don't start leaking on the diffs, that the transfer case doesn't leak, and the gearbox input shaft doesn't leak, nor the rear main seal. As they're about the only seals I haven't replaced in the driveline! I'm seriously eyeing off buying new caliper rebuild kits front and rear brake calipers... I'll probably recheck all the valve clearances soon too, and hopefully, it should be all good and sweet to haul some long distance trips again!
    • Every time I pull my 3x gauges out of the console and see the crack-addict way that I did the wiring, and I just can't bring myself to tear it all apart and "make it nice", because it is currently working. In fact, the last time I was in there I probably made it worse.
    • The best part is when you own the car long enough that you look back and find your OWN ham fisted amateur shit!
    • The annoying part about neglect, is when you start to replace one thing, and find ten more broken things. Ham fisted monkey repairs you normally only find out about when trying to do something unrelated! Ha ha   Neglect you can kind of anticipate the huge costs to fix it all. Ham fistedness is normally a shock the first time your work on a new old car, as everything "looked" good before.
    • For DBA, check out their guide table here. https://dba.com.au/wp-content/uploads/2023/01/Direct_Replacement-Guide-2021.2.pdf   Additionally they have some other guides and info on how to make sure you choose the right pad.
×
×
  • Create New...