Boost restrictor thingo

[NO_RSPECT]

Does anyone know if the washer looking thing inside one of the hoses that goes to the intercooler piping from the wastegate that has a red line marked on it is a boost restrictor thingo or does it help to increase boost etc.

figure that out and then get back to me

RiaZ

[Micko]

Does on a GTR - got the same line on the hose too

[NO_RSPECT]

well i was talking to gav with an r32 gtr and he said it did increase but he was also saying on the s platform s13, 14, 15 you need to put a bigger restriction in to get higher boost.

so cos i dont have a boost guage i am using the factory r33 one, yeah i know its shocking well it has a 0 and a +7 marked and when i took the restriction out it climbed to the mark that is between those two so basically 3.5 but when i put the thing back in it went to between the 3.5 and the 7. now it seems obvious that it is producing more boost but the seat of the pants story is different. the car doesnt seem to have that 2 stage factory boost like normal it just gets to the 3.5 and sits there rock steady

someone enlighten me

I can check again when i get a boost guage but if someone has a guage how about you go out right now and pull that thing outta there and come back and let me know

RiaZ

[rob77]

Get a bleed valve, plumb it to 12psi, fang the absolute tits off your car in 30+ degree heat.

*disclaimer* if you damage your car from information I have provided stiff shit

[NO_RSPECT]

i got a bleed, havent installed it yet i just wanna make sure i know what this does so for all the others with stock cars and no bleed etc we can take 5 mins and get that thing the hella outta there

[rev210]

the bleed valve install is a 'no-brainer' (that's why I could do it).

It plumbs staight in with no fuss. Adjust it slowly a notch at a time and give it a bootfull on the freeway in 4th. In fact the freeway is a great place to do the tune. There is no need to exceed the limit as the turbo under load in 4th will get to max boost well before you break the law.

leave it at 10psi and I'm sure you will be more pleased.

[GTS-t VSPEC]

Yeah, I'm with rev, if you don't want to fork out big money for a EBC then a bleed valve for mild boost is fine, not very good with non-stock turbo's though.

See'ya:burnout:

[NO_RSPECT]

what are you guys talking about now.... what is the deal with the restrictor thingo, cmon,

i got a bleed , forget me installing it. I wanna find out if the restrictor is better not there or if it is not a restrictor as such??

something like that

oh and yes the bleed will be going in shortly. i wanna get the dump pipe sorted first and the boost gauge

[adam 32]

"not very good with non-stock turbo's though"

id have to disagree there paul. i run a bleeder on my turbo and its flawless. holds 15psi no worries. no spiking and builds smoothly, couldnt ask for anything else. from my experience with a GFB bleed valve theres much better things to spend money on then an EBC (which are quite pricey)

i understand u dont see the top secret supra getting around with a turbosmart bleed valve but for most of our cars bleed valves are decent

[GTS-t VSPEC]

Most other people experience spiking with there bleed valves, they aren't designed to compensate for the change in boost levels like an EBC, but some people like them. I used one for a while, didn't like it, but that's my situation.

Non-stock turbo's tend to produce alot more airflow, and the bleed valve doesn't react too well.

See'ya:burnout:

[adam 32]

but on an external wastegate which has greater control over exhaust gases it works well, as in my case

[GTS-t VSPEC]

Yeah, external wastegates are a major improvement for proper control. I will have one oneday, but until then I'll keep my EBC, it works nicely, plus has the advantage of being able to change boost in cabin, but agreed they are too expensive.

See'ya:burnout:

[rev210]

bleeder are a poor mans EBC and don't do anywhere near as good a job bringing the boost on quick or holding boost.

If you have the money an ebc is great stock turbo or not. If I had one my times over the quarter would be a tenth or two lower just from the extra response they offer.