Nissan 370Z Forum

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-   -   Boost vs. RPM (http://www.the370z.com/forced-induction/71299-boost-vs-rpm.html)

DIGItonium 06-02-2013 02:57 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 09:48 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 09:54 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 01:31 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 01:32 PM

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

DIGItonium 06-15-2013 12:45 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 06-15-2013 11:49 PM

Quote:

Originally Posted by DIGItonium (Post 2363037)
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 :tup:

roplusbee 06-16-2013 01:30 AM

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

Sent from my SGH-T889 using Tapatalk 4 Beta

G37Sam 06-16-2013 01:52 AM

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

DIGItonium 06-17-2013 09:23 AM

Quote:

Originally Posted by G37Sam (Post 2365293)
Glad to hear! Let's hear what she sounds like now! :D

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.


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