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Discussion Starter #1
Here is the dyno graph:



Before:
264.3 WHP
230.1 WTQ

After:
272.2 WHP
242.8 WTQ

This was done at HB Speed in Fountain Valley. I forgot to ask what gear he was doing the pulls in but I have a hunch that it was 5th because he mentioned that their Dynomite dyno reads about 10 WHP lower than Dynojets in the area. These kind of numbers sound like the slightly inflated numbers that we see from 5th in the Z. I had him bump the redline to 7000 and bump up my idle to 800.

My car is an '03 with the following mods:

-Injen SES-1985C
-Stillen Metallic HFC
-K&N Typhoon intake system
-MD 5/16 spacer
-Rev-Up lower plenum

...and 90,000 miles!

Let me know what you guys think!
 

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looking good! : )
 

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Once I convert to kw and nm so I can understand better 203rwkw is huge for an 03 with those mods! Your torque gain regardless is very good.

I thought running the car in 4th inflated the results? 5th gear is 1:1. It's a common error made by mechanics on our cars.
 

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Discussion Starter #4
Yes, 5th is 1:1 but for some reason, on the Z, people see higher numbers in 5th than in 4th, which is weird. i8aCobra was saying that, for this reason, he thinks that 4th is a better representation of actual power. That seems plausible to me, I expected it to come in in the low 260's so the extra ten or so HPs maybe be because these are 5th gear numbers, not sure though. Check out this thread:

http://www.350z-tech.com/forums/index.php?showtopic=40354

Regardless, the torque gain is VERY noticeable and it's in my favorite part of the power band so I am very happy no matter what the max power is. Also, they corrected my low idle, high AFRs, and bumped my idle. No more random misfire at idle! Overall, I am very happy with it!
 

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:clap: I'm convinced that I need to do this soon. Those are great numbers for those few mods. Woohoo!
 

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Brent, thanks for that link. I'd missed that thread.

I went back and had a look at my dyno when the car was stock and it was done in 4th too.. 157.2rwkw or ~211whp
 

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To the OP, I forget if the enthusiast has cruise control, but if so, did you get multiple maps put on as well? Numbers look great though. Also How did they do the AFR, since our 03s have narrow band o2 sens? I'm guessing with the sniffer in the tail pipe. I really want to get mine done soon.
 

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Discussion Starter #8
QUOTE (zcountry @ Mar 21 2010, 10:44 PM) index.php?act=findpost&pid=594002
To the OP, I forget if the enthusiast has cruise control, but if so, did you get multiple maps put on as well? Numbers look great though. Also How did they do the AFR, since our 03s have narrow band o2 sens? I'm guessing with the sniffer in the tail pipe. I really want to get mine done soon.
Yep, the enthusiast has cruise. I have five maps:
-stock
-mild
-aggressive
-economy
-valet (3k rpm max, 55 mph max)

Yes, he used a tailpipe sniffer to read the AFRs. If you are considering doing it, do it. Best NA mod I've done. By far. All of my other mods have produced a "maybe it feels faster" feeling on the butt dyno but it is DEFINATELY faster after this. It amazes me what this engine can still do after 90k miles of being wringed out on a regular basis!
 

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I was just going to say that your torque numbers look really low then I saw you had a revup lower collector
 

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Discussion Starter #12
QUOTE (6spd z33 @ Mar 30 2010, 08:03 PM) index.php?act=findpost&pid=594538
I was just going to say that your torque numbers look really low then I saw you had a revup lower collector
Yeah, the jury is out for me on whether that was a good idea or not. I read a few things, got it cheap, and assumed that Nissan HAD to have improved it on the Rev-Up. I figured that that is where they got some of the extra 13 HP that the Rev-Up has over the DE. I didn't really consider it's effect on torque when I installed it.
 
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