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Old 08-22-2008, 04:44 PM   #1
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Default SP 350Z low boost dyno numbers

I wanted to start a new thread on our current shop car progress, so if a mod could delete the other thread, I would appreciate

Here are the specs on our 350z

SP 3.5L (Darton Sleeves)
Headgames Race Heads
Brian Crower Stage 2 cams
CJ Motorsports Intake Manifold
SP Twin Turbo Kit 67bb
SP Fuel System (CJM Fuel Rails)
ProEFI 128pin ECU
RPS Carbon Carbon Clutch

onto the dyno numbers and vid

Pump gas (93octane)
11psi = 605rwhp
15psi = 675rwhp

110 Octane
17.4psi = 723rwhp
21psi = 790rwhp

We're very pleased with the numbers and it has a beautiful hp curve, nice and smooth.

We'll throw some C16 into it next week and turn up the boost!!

View Video on FQuick

Chris
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Old 08-22-2008, 04:58 PM   #2
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600+ Hp on only 11 psi, wow. That car is sick
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Old 08-22-2008, 05:30 PM   #3
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Can we have to dyno chart to see the spool and powerband? Also, whats up with all the smoke on decel?
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Old 08-22-2008, 06:14 PM   #4
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Quote:
Originally Posted by thawk408
Can we have to dyno chart to see the spool and powerband? Also, whats up with all the smoke on decel?

I will post the dyno sheet on Monday but I can say that the HP finally crests at 8400 RPM. The turbos come on strong at 4500.

As far as the smoke goes, I believe it is a combination of a bad scavenge pump along with not enough crankcase ventilation. I am still running the stock PCV valve so that may have to go!!
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Old 08-22-2008, 06:19 PM   #5
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Wow..these numbers seem like stroked equivlants
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Old 08-22-2008, 06:23 PM   #6
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Quote:
Originally Posted by Crom
Wow..these numbers seem like stroked equivlants

Nah, the stroked guys are still ahead.....

We just have really good heads, a great intake manifold, some really big turbos and a kick ass computer to our benefit!!


I am very pleased though how the HP never falls off all the way up to 8400!!
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Old 08-22-2008, 06:24 PM   #7
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Quote:
Originally Posted by SoundPerformance
I will post the dyno sheet on Monday but I can say that the HP finally crests at 8400 RPM. The turbos come on strong at 4500.

As far as the smoke goes, I believe it is a combination of a bad scavenge pump along with not enough crankcase ventilation. I am still running the stock PCV valve so that may have to go!!
What are you revving it out to? Whats helping it make power that high? The intake manifold and heads? Because I know those 264 BC probably are not helping very much at that high of rpm.
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Old 08-22-2008, 06:29 PM   #8
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very cool. cant wait to see some graphs. also cant wait to see how everything (especially the intake) does at the higher boost. give me a reason to pull the trigger on the casting!!!
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Old 08-22-2008, 06:30 PM   #9
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larry if you look at the PCV nipple on the back of the driver side valvecover, its restricted on the inside quite small (towards the inside). i drilled mine out to match the ID of the nipple to help vent pressure once the manifold is boosted and the PCV valve closes
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Old 08-22-2008, 06:41 PM   #10
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Very nice. Got a pic of that intake manifold?
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Old 08-22-2008, 06:43 PM   #11
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Quote:
Originally Posted by RudeG_v2.0
Very nice. Got a pic of that intake manifold?
Middle of the page.

http://my350z.com/forum/forced-induc...-update-4.html

Also, chris I would appreciate it if you left the old threads and dont have them deleted. They have some very nice information in them.
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Old 08-22-2008, 07:30 PM   #12
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Quote:
Originally Posted by thawk408
Middle of the page.

http://my350z.com/forum/forced-induc...-update-4.html

Also, chris I would appreciate it if you left the old threads and dont have them deleted. They have some very nice information in them.
Very good point! I hope the mods don't mind 2 threads

Charlies intake is doing great, and seeing the power just shoot up is a beautiful thing. Dave at headgames did an amazing job too!

I took it for a very quick blast on the street for a couple gears. HOLY CRAP!!! Feels awesome, oh and those mickey's HOOK
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Old 08-22-2008, 07:52 PM   #13
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Now lets see how long the factory 6spd last....

Also, what turbine A/R are you running on the 67s?
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Old 08-23-2008, 07:39 AM   #14
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You guys at SP are amazing!
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Old 08-23-2008, 01:17 PM   #15
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on a cold motor we made 813rwhp @21psi today

I'll get charts today.

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Old 08-23-2008, 01:31 PM   #16
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Old 08-23-2008, 02:04 PM   #17
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HP & TQ on the last pull

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Old 08-23-2008, 04:37 PM   #18
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What hotside A/R is being used?
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Old 08-23-2008, 06:35 PM   #19
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now i see on the green run the power goes all the way to the end at 8400. on the other runs it drops off quickly just before that. is that quick drop just where you let off the throttle?

any plans to rev it higher? only curious because id like to see how the manifold handles 9000rpm... but results are ****in rad anyway!
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Old 08-23-2008, 07:01 PM   #20
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Quote:
Originally Posted by phunk
now i see on the green run the power goes all the way to the end at 8400. on the other runs it drops off quickly just before that. is that quick drop just where you let off the throttle?

any plans to rev it higher? only curious because id like to see how the manifold handles 9000rpm... but results are ****in rad anyway!

Yeah I probably let off a bit earlier on that pull!!

I can try going a bit higher.... just for you!!
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Old 08-23-2008, 07:01 PM
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