Boost vs. RPM

DIGItonium · 06-02-2013, 03:57 PM

Haha good point. Can't wait to feel the response. I'm borrowing a '98 Civic and it has much more response than my car at the moment lol.

DIGItonium · 06-14-2013, 10:48 AM

TP install progress:
Removed passenger side HFC. Confirmed from carbon deposits by the edge of possible leak due to lack of gasket to the downpipe. No wonder there's a whine noise. Last tech must have tossed it out after replacing the transmission several times last year. HFC surprisingly intact, but flash light test shows it is almost clogged.

Tech pulled oil line from turbo and is looking for a replacement gasket.

Chuck33079 · 06-14-2013, 10:54 AM

You're going to love it once you get the test pipes on. There's no telling how long you've been running with the cat partially clogged before it failed. Between that and the fact you're currently driving a car powered by an asthmatic gerbil, the Z is going to be a rocket ship.

Having a daily driver that was ungodly slow saved me thousands in mod money when I still had my STI. There was no need to keep modding it if you drove a 1991 Volvo 940 nonturbo Mon-Thurs.

DIGItonium · 06-14-2013, 02:31 PM

You're right, Chuck. The the exhaust isn't any louder and there's no rasp. The tone changed a tiny bit, but has a more distinct VQ tone in the midrange. The boost setting is set low, so it's barely pushing 6 PSI. However, I'm getting boost at mid throttle at 3k in all gears. Throttle response feels much better. Also, the passenger side turbo whine is gone, but there's this nice faint turbo whoosh sound now as it spools up.

Well, the temps are 100F right now, but the engine didn't heat up like it did last year. Oil temps barely exceeded 200F, and the water temps remained.

Chuck33079 · 06-14-2013, 02:32 PM

It's amazing what getting rid of an astronomical amount of backpressure will do, huh?

DIGItonium · 06-15-2013, 01:45 PM

I dialed the boost back up, so it's around 7-8 PSI. I was amazed as well and definitely felt an increase in power in my gutt lol. I took my neighbor for a drive, and it scared him. I told him this is the reason why I drive real slow and carefully on our street - not just for the safety of the kids around me lol.

Time to kick it up a tiny bit more... [evil grin] since mid throttle response feels so good.

Nixlimited · 06-16-2013, 12:49 AM

Quote:

Originally Posted by DIGItonium

TP install progress:
Removed passenger side HFC. Confirmed from carbon deposits by the edge of possible leak due to lack of gasket to the downpipe. No wonder there's a whine noise. Last tech must have tossed it out after replacing the transmission several times last year. HFC surprisingly intact, but flash light test shows it is almost clogged.

Tech pulled oil line from turbo and is looking for a replacement gasket.

You get to experience the thrill of going FI twice

roplusbee · 06-16-2013, 02:30 AM

Awesome dude! I'm glad you got it worked out.

Sent from my SGH-T889 using Tapatalk 4 Beta

G37Sam · 06-16-2013, 02:52 AM

Glad to hear! Let's hear what she sounds like now!

DIGItonium · 06-17-2013, 10:23 AM

Quote:

Originally Posted by G37Sam

Glad to hear! Let's hear what she sounds like now!

My car is going in the shop next week to get storm repairs done, so I'll try to have a friend help me with some videos. It sounds so good. I just have to get over the fuel smell for now. The slight spooling sound is so cool I wish it was louder lol.

06-02-2013, 03:57 PM	#31 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	Haha good point. Can't wait to feel the response. I'm borrowing a '98 Civic and it has much more response than my car at the moment lol. __________________

06-14-2013, 10:48 AM	#32 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	TP install progress: Removed passenger side HFC. Confirmed from carbon deposits by the edge of possible leak due to lack of gasket to the downpipe. No wonder there's a whine noise. Last tech must have tossed it out after replacing the transmission several times last year. HFC surprisingly intact, but flash light test shows it is almost clogged. Tech pulled oil line from turbo and is looking for a replacement gasket. __________________

06-14-2013, 10:54 AM	#33 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	You're going to love it once you get the test pipes on. There's no telling how long you've been running with the cat partially clogged before it failed. Between that and the fact you're currently driving a car powered by an asthmatic gerbil, the Z is going to be a rocket ship. Having a daily driver that was ungodly slow saved me thousands in mod money when I still had my STI. There was no need to keep modding it if you drove a 1991 Volvo 940 nonturbo Mon-Thurs. DIGItonium likes this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

06-14-2013, 02:31 PM	#34 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	You're right, Chuck. The the exhaust isn't any louder and there's no rasp. The tone changed a tiny bit, but has a more distinct VQ tone in the midrange. The boost setting is set low, so it's barely pushing 6 PSI. However, I'm getting boost at mid throttle at 3k in all gears. Throttle response feels much better. Also, the passenger side turbo whine is gone, but there's this nice faint turbo whoosh sound now as it spools up. Well, the temps are 100F right now, but the engine didn't heat up like it did last year. Oil temps barely exceeded 200F, and the water temps remained. G37Sam and GaleForce like this. __________________

06-14-2013, 02:32 PM	#35 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	It's amazing what getting rid of an astronomical amount of backpressure will do, huh? __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

06-15-2013, 01:45 PM	#36 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	I dialed the boost back up, so it's around 7-8 PSI. I was amazed as well and definitely felt an increase in power in my gutt lol. I took my neighbor for a drive, and it scared him. I told him this is the reason why I drive real slow and carefully on our street - not just for the safety of the kids around me lol. Time to kick it up a tiny bit more... [evil grin] since mid throttle response feels so good. __________________

06-16-2013, 02:30 AM	#38 (permalink)
roplusbee A True Z Fanatic Join Date: Dec 2009 Location: Killeen, TX Posts: 2,360 Drives: 2007 350Z NISMO Rep Power: 23	Awesome dude! I'm glad you got it worked out. Sent from my SGH-T889 using Tapatalk 4 Beta __________________ 2007 350Z NISMO #0618: Zerolift \| UPREV \| F.I. \| Greddy \| Competition Clutch \| Injector Dynamics \| Aeromotive \| Pioneer \| JL

06-16-2013, 02:52 AM	#39 (permalink)
G37Sam A True Z Fanatic Join Date: Dec 2008 Location: Dubai, UAE Posts: 1,507 Drives: RB'd G37 Rep Power: 21	Glad to hear! Let's hear what she sounds like now! __________________ '14 Viper GTS '08 RB'd G37S - Sold

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
4.08 and boost	whoLEEoh	Engine & Drivetrain	16	12-07-2015 09:08 AM
608WHP GT-R 93 Oct. Low Boost	Kevin@AkumaMS	Tuning	9	11-29-2012 10:43 AM
twin boost for my Z	jetguy	Forced Induction	1	09-19-2012 07:37 PM
Got Boost?	Nitex	The Lounge (Off Topic)	8	04-09-2012 02:40 PM
Need Mic Boost?	Osiris	Audio & Video	6	07-14-2010 04:43 PM