XtremeDime

iTrader: (16)

Sounds like youre running a front mount. Do you smell much of the exhaust?

XtremeDime

iTrader: (16)

Ttt!!

Reject

iTrader: (24)

i hear the jet engine sound every day at work at it never gets old

jeremym

iTrader: (3)

will the atmo wg over power the atmo bov?

Super Slow SS

iTrader: (9)

they operate at different times, in theory, but usually you can hear both.

Super Slow SS

iTrader: (9)

What BOV on the first video?

This may be the most responsive turbo on a f-body I have ever heard, what size engine and .ar?

LOST IN SPACE

It is a Bosch. If you need more info than that I will chase it up for you, please just let me know.

Heres a dyno vid from today but the camera really doesn't pick up how deafening the noise is, and thats only a twin 2.5" system.

[youtube]rzwul00y_4E[/youtube]

xXxSilveradoxXx

iTrader: (5)

So running an open wastegate causes the "jet engine sound"? How does that work? I always assumed that only rearmounts made that sound because the turbo was so close to the end of the exhaust.

Reject

iTrader: (24)

rear mounts do that becuase look at where their WG is at... it would be useless to route it back to the downpipe and the down pipe end in half a foot. the sound is becuase the excess gasses are let to escape and it's creating that sound off of the turbo.

LS1Silverado05

iTrader: (41)

You guys are making me REALLLLY want to hurry up and get my car on the road!

SKINNY69

I REALLY need to buy an f body. The auto vs 6speed debate is the only thing holding me back.

xXxSilveradoxXx - It basically sounds like a monster exhaust leak once full boost is achieved. You'll have to find someone in person to get an idea of what I'm talking about.

jeremym

iTrader: (3)

has anybody used the JGS stuff? wastegates or the bov's?

Super Slow SS

iTrader: (9)

I have never used one although according to my research and the popular opinion on this forum, they make great stuff and lots of people use them.

I think there is a little confusion on the f16 butt load of air screaming by sound vs the high pitch whistle you get from a rear mount car when referencing the "jet engine" sound.

WS6HUMMER

iTrader: (19)

I have a JGS 50mm WG, its very well made, it uses a piston instead of a diaphgram like some others do. The cons about it is that its a pain changing the springs out on the car, you have to be very carefull when putting the hat back on or you will tear the bottom o-ring.

WS6HUMMER

iTrader: (19)

Also for everyone running an open dump WG, does it throw off a wideband since its opening up before the O2 sensor? I know when you have an exhaust leak it will make the wideband read false lean.

67Firebird455

iTrader: (27)

Shoot, good point man, I didn't think of that...

NicD

iTrader: (7)

No, it's not open anywhere near any amount of vacuum so it wouldn't get close to sucking in air.


It does pretty well for the combo, especially since everybody always repeats that a low compression motor is slow to come into boost or runs like garbage without boost. It's just an 8.5:1 compression 347 with a T76 .96 a/r.

xXxSilveradoxXx

iTrader: (5)

Auto VS T56, the debate continues! I know auto is fastest but I wanted a 6-Speed, go figure.

I thought that was gonna be how an open wastegate would sound, like an exhaust leak. I didn't think it would make the "jet" sound!

Sounds like we need a front mount, open wastegate video for an accurate comparison.

Very good point! Although I'd rather have my car running a little rich than a little lean!

xXxSilveradoxXx

iTrader: (5)

Dude is running a big 6.2 liter with a T70 turbo with a 1.00 a/r turbine housing.

Big Engine + Smallish Turbo = Response!

xXxSilveradoxXx

iTrader: (5)

^^^Opps, I though we were talking about LOST IN SPACE's ride^^^