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Heard JWT cams in a VQ35 last night...

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Old 10-29-2004, 05:04 PM
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Heard JWT cams in a VQ35 last night...

I met up with PhnxBlu and it sounded mellow at idle...not lumpy at all. I can't comment on mid/top-end sound, since he just rev'd it a bit in neutral.

He has PR CAI, HS headers, Budget bpipe, Cattman rear section(older style I think), and a custom TechnoSquare reflash for cams to smooth the idle/hicuping issues.

Very healthy sounding HOT car.....
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Old 10-29-2004, 06:53 PM
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Ahh...so the ECU was changed a little to accomodate the idle? I wonder what it would sound like without that...
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Old 10-29-2004, 10:34 PM
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what does it idle at?
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Old 10-30-2004, 05:32 AM
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I would take a guess and say around 900
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Old 10-31-2004, 03:41 PM
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my girls 3.5 4th gen with cams idles around 500-600 fine
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Old 10-31-2004, 07:25 PM
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So is it ok to idle around 600 rpm with JWT cams? I heard 900 rpm is the ideal idle. I tried adjusting the idle, but no matter what I do, the idle doesn't change. It stays around 600-650 rpm.
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Old 10-31-2004, 08:15 PM
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Why does the 5th gen need a different idle? Doesn't the CVCT deal with the rough idle by itself. Thats the way it is on the Z's at least.
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Old 11-01-2004, 09:22 AM
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No, it ran bad, not sure how, until TS reflashed it a couple times in person.

The idle didn't sound raised extremely high, but I didn't visually notice on the tach what RPM it was set at. I asked PhnxBlu what TS changed and he didn't know. He just said it was having driveability issues and that the TS reflash fixed it nicely, however supposedly it dropped his peak power a bit, maybe 10whp.
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Old 11-01-2004, 01:37 PM
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Originally Posted by Cumalot
So is it ok to idle around 600 rpm with JWT cams? I heard 900 rpm is the ideal idle. I tried adjusting the idle, but no matter what I do, the idle doesn't change. It stays around 600-650 rpm.
Warm up car. Turn off. Dissconnect TPS, turn on car. Adjust idle screw on IACV. Turn off car, plug in TPS.
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Old 11-01-2004, 04:38 PM
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Originally Posted by kevlo911
Warm up car. Turn off. Dissconnect TPS, turn on car. Adjust idle screw on IACV. Turn off car, plug in TPS.


I already know how to do it. Didn't work for me.
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Old 11-01-2004, 05:03 PM
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you can just adjust the TPS to have a higher voltage at closed throttle. I have a 800 rpm idle at the moment from when I reset my TPS after taking off the PF TB.
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Old 11-01-2004, 05:34 PM
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Originally Posted by I30tMikeD
you can just adjust the TPS to have a higher voltage at closed throttle. I have a 800 rpm idle at the moment from when I reset my TPS after taking off the PF TB.

That's what I was going to tackle next. Hopefully that will do it.
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Old 11-01-2004, 06:06 PM
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Originally Posted by Cumalot
That's what I was going to tackle next. Hopefully that will do it.

it will. You can adjust your idle to exactly where you want it.
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Old 11-02-2004, 02:26 AM
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My car idles nicely at 750. Before the reflash I had severe hesitation until 4000 rpm no matter what gear I was in. I dont know how they fixed that, maybe they toyed with the timing?? My only real prob now is the lack of power until 3500 rpm, the most gutless 4 bangers outthere could prolly smoke me off the line.
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Old 11-02-2004, 05:45 AM
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Originally Posted by PhxBlue
My only real prob now is the lack of power until 3500 rpm, the most gutless 4 bangers outthere could prolly smoke me off the line.
Don't you just hate that? I got the same problem. It can get very annoying. Only way to solve this for me is a high stall TC.
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Old 11-02-2004, 08:45 AM
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Time for VTC pulleys, however TS needs to figure out how to reflash the cam angle vs. load tables stored in the ECU.


http://www.z1auto.com/prodmore.asp?m...ine&prodid=922
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Old 11-02-2004, 10:12 AM
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Originally Posted by Cumalot
Don't you just hate that? I got the same problem. It can get very annoying. Only way to solve this for me is a high stall TC.

small turbo + brake boosting
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Old 11-02-2004, 11:07 AM
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N20...............
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Old 11-02-2004, 04:18 PM
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Also, JWT has tuning capabilities on the VQ35s, so hopefully soon they will figure out how to optimize the CVTC to work with their cams <4000rpm or better the Nismo VTCs and their cams.

Hopefully, now that their VQ35 TT Z/G kit is hitting the market at SEMA, they'll start releasing new ECU reflashes for the Z/G and 2K2+ Maxima owners can get some benefit.
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Old 11-02-2004, 04:30 PM
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Originally Posted by Cumalot
Don't you just hate that? I got the same problem. It can get very annoying. Only way to solve this for me is a high stall TC.
3.5 bottom end will change that believe me.
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