wondering about turbos...

[onehalfasia]

http://www.youtube.com/watch?v=HAGCiffKKes

Many well tuned Nissans i've heard sound similar. From the comments everyone seemed confused, I don't care what the noise is called, mostly the parts and the setup.

[rps13drift]

compressor surge!!! hes probably not running any blow off valve or one that has been set realy stiff

[onehalfasia]

compressor surge!!! hes probably not running any blow off valve or one that has been set realy stiff Is there any advantage to not running one, do most of the well tuned nissans(yashio, the video one, champ s14, basically most silvias) run no bov? I'm curious how they set them up and why.

[Z U L8R]

that sounds like a bov set really stiff.

if you run no bov your turbo will last a week, a month if you've been tithing and have found favor with the Lord lol

the bov keeps the boost from killing the turbo in between shifts, compressor surge is not a good thing

[SSC299]

compressor surge is so bad for your turbo. a pull type bov is the way to go....almost 0% chance of compressor surge. keep your turbo alive.

[Silverbullet]

that sounds like a bov set really stiff.

if you run no bov your turbo will last a week, a month if you've been tithing and have found favor with the Lord lol


your statement is too broad. I know people who've daily driven and weekend track their cars for a good two years with no BOV. I myself have been on and off with no BOV. It wont kill the turbo over night like you make it seem.

For a pure track car that is being driven on a track for 24/7 for a week... maybe? It also depends how much pressure.

[GSXRJJordan]

if you run no bov your turbo will last a week, a month if you've been tithing and have found favor with the Lord lol

I take it you've never actually run a turbo with no BOV. Lots of us have, and the turbos are ok years later... it's not the best thing for a turbo, but not nearly as bad as no oil/coolant, etc.

That sound is compression surge, yeah it sounds cool, and if you're like me you'll have your BOV set to dump when you shift at full boost, but not to dump when you shift at no boost (that way you get a little compressor surge under partial throttle/no boost, and a big BOV dump at full throttle/boost - but most importantly, your BOV won't leak under boost!)

I forget whether it was Mercer or J5, but one of the Viceroy guys was on a thread I chimed in on and said he ran his gt28 for over a year with no BOV, and was going to do it to his larger turbo too... like I said, not an immediate death sentence for the turbo, but not good for it by any means ~

[onehalfasia]

hm, thank you for the info thus far. The amount of wear on a turbo probably depends weather its bb or not also? Would having no bov on a gt28r at 15-16 psi be a bad idea, i could live with replacing the turbo yearly.

[rps13drift]

Dont quote me but i read some where that with ball bearing turbos like the gt series from garrett can take compressor surge with no ill effects.

[steve shadows]

http://www.youtube.com/watch?v=HAGCiffKKes

Many well tuned Nissans i've heard sound similar. From the comments everyone seemed confused, I don't care what the noise is called, mostly the parts and the setup.

what is your actual question though?

[onehalfasia]

what is your actual question though?Wondering what parts are needed to setup a reliable gt28r at 15-16psi. I have a intercooler, turbo/manifold, looking for injectors and fuel pump, management, rocker arm stoppers, headgasket, and cooling reliability parts/sensor/regulators. Would an apexi FC d-jetro be the way to go for management? I'm gonna dd the car for a while, possibly upgrade later. Any info on the above listed parts would be appreciated.

[onehalfasia]

what is your actual question though?What parts are needed to setup a reliable gt28r at 15-16psi. I have a intercooler, turbo/manifold, looking for injectors and fuel pump, management, rocker arm stoppers, headgasket, and cooling reliability parts/sensor/regulators. Would an apexi FC d-jetro be the way to go for management? I'm gonna dd the car for a while, possibly upgrade later. Any info on the above listed parts would be appreciated.

[johngriff]

Sounds like the dumb ssqv with a Mic right next to it.

You notice the sound mix does not change when we change camera angles, or at least the volume at which the BOV makes it noise. Looks like an HKS ad, looks like a chance to showcase the BOV noise, and it was definately made more apparent to whomever mic'd the car, and mix'd the sound on the video.

So, buy that bov, then stick a mic next to it, then put that into the iPod input on your head unit, crank that beezee up with your subs and listen to dat chirp blast.

As far as BOV vs no BOV. I am with Jordan as to setup, though it will scare most people. You might as well put a BOV on, its 200 or less. Do you NEED one....? Nissan equiped the CA S13 with no pressure relief, then equiped the SR S13 with one. Either they were after an attractive sound to sell the car, or it proved to increase the wear life. From the amount of blown CA turbos' I have seen now, Im going with the latter.

[johngriff]

What parts are needed to setup a reliable gt28r at 15-16psi. I have a intercooler, turbo/manifold, looking for injectors and fuel pump, management, rocker arm stoppers, headgasket, and cooling reliability parts/sensor/regulators. Would an apexi FC d-jetro be the way to go for management? I'm gonna dd the car for a while, possibly upgrade later. Any info on the above listed parts would be appreciated.

D-Jetro with 600cc inj, tune, and good piping and cuplinks will do that. Any thing else is going to be Safeguards and Power adders.

[steve shadows]

What parts are needed to setup a reliable gt28r at 15-16psi. I have a intercooler, turbo/manifold, looking for injectors and fuel pump, management, rocker arm stoppers, headgasket, and cooling reliability parts/sensor/regulators. Would an apexi FC d-jetro be the way to go for management? I'm gonna dd the car for a while, possibly upgrade later. Any info on the above listed parts would be appreciated.

gt28r? that doesnt mean anything to me.

Im assuming proper nomenclature, that just describes a garrett t28 frame with a ball bearing turbine and a gt spec wheel of some sort.

If your talking about a gt2860r you can keep your 370cc injectors and just turn up the fp base about 5 psi and track down a mines ecu from japan for economical purposes. Or pick up some 480cc injectors from the s15 and grab an enthalpy tuned rom or one from Martin at XAT (iirc they are still doing free lance here and there).

PFC is great if your serious about going that route, defintley better than a rom tune.

gt2860r wont make more than 320whp even with a fully build sr (with stock compression all-be it) so i dont see the fucking point of running injectors sized for a 450whp setup.

[onehalfasia]

D-Jetro with 600cc inj, tune, and good piping and cuplinks will do that. Any thing else is going to be Safeguards and Power adders. thank you for the tips

[onehalfasia]

gt28r? that doesnt mean anything to me.

Im assuming proper nomenclature, that just describes a garrett t28 frame with a ball bearing turbine and a gt spec wheel of some sort.

If your talking about a gt2860r you can keep your 370cc injectors and just turn up the fp base about 5 psi and track down a mines ecu from japan for economical purposes. Or pick up some 480cc injectors from the s15 and grab an enthalpy tuned rom or one from Martin at XAT (iirc they are still doing free lance here and there).

PFC is great if your serious about going that route, defintley better than a rom tune.

gt2860r wont make more than 320whp even with a fully build sr (with stock compression all-be it) so i dont see the fucking point of running injectors sized for a 450whp setup.

turbos is from a manual s15

[johngriff]

I retract my statement.

Get a ROM tune and an AFM (N60/N62/J60) and the stock S15 (460's iirc). That is pretty much all you will need until 15/16 Psi, after that 91 octane will become unstable and you will need higher octane or an additive (such as meth/water).

[onehalfasia]

I retract my statement.

Get a ROM tune and an AFM (N60/N62/J60) and the stock S15 (460's iirc). That is pretty much all you will need until 15/16 Psi, after that 91 octane will become unstable and you will need higher octane or an additive (such as meth/water). I'm leaning towards the PFC d-jetro after reading a few threads about engine management.

[johngriff]

If it is just the S15 Turbo, then there will not be much to tune for, it really does not require an extensive retune, or constant tunability like the PFC or similar management would provide.

[onehalfasia]

If it is just the S15 Turbo, then there will not be much to tune for, it really does not require an extensive retune, or constant tunability like the PFC or similar management would provide. well, i kinda want to learn how the program works, and also might upgrade turbos in the future, seems fairly user friendly also, i basically have no idea about the rom tunes so i could be wrong.

[johngriff]

With the PFC in regards to the commander, there is nothing to learn except pain and suffering. So, if you are looking for a thorough experience make sure you pick up the FC loggit along with your PFC, otherwise it will be worthless to you as a self tuner.

At this point, you are in it so much cash that there are better EMS systems out there that will convert you to MAP as well, yet the whole experience is rendered moot if you are tuning and mapping a well mapped turbo (S15). Maybe a different turbo is in order to justify the tunability of some of these systems.

[koukimonster139]

bovs are for fucking sissys.

[Z U L8R]

i've never ran a turbo without a bov, you are right. the two friends of mine that did, their turbo's did not last a week. therefore i said what i said. who cares about a stock turbo, all fine and dandy if you got it like that. but why spend $1000+ on a turbo, only to run it with no bov, just so you SOUND cool. that's what ricer's do, they SOUND cool, but when your turbo takes a shit, and i'm still driving my car, i'll be laughing at you

[koukimonster139]

turbo sounds are the most riceiest shit you can make your car do...