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Forged Performance: A couple of visitors stopped by...

A couple of local customers stopped by with their new 370Z's. I went ahead and loaded both of them on the dyno. Bone stock, and Stillen Exhaust/Berk HFC. Needless to

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Old 03-24-2009, 10:54 PM   #1 (permalink)
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Default Forged Performance: A couple of visitors stopped by...

A couple of local customers stopped by with their new 370Z's. I went ahead and loaded both of them on the dyno.
Bone stock, and Stillen Exhaust/Berk HFC. Needless to say, I was SHOCKED with the results.





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Old 03-24-2009, 10:57 PM   #2 (permalink)
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37 hp from cats and exhaust? Did I understand that right?
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Old 03-24-2009, 11:21 PM   #3 (permalink)
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37 hp from cats and exhaust? Did I understand that right?
Yeah, more info please!
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Old 03-24-2009, 11:59 PM   #4 (permalink)
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did you run them multiple times? were they both already broken in? more info is needed that number seems way way low on the bone stock
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Old 03-25-2009, 02:36 AM   #5 (permalink)
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It was done on a Dyno Dynamics dyno (DD), which is pretty notorious for its low results. Semtex explains it all in the following post:

Stillen Exhaust with Berk HFCs
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Old 03-25-2009, 09:07 AM   #6 (permalink)
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did you run them multiple times? were they both already broken in? more info is needed that number seems way way low on the bone stock
Mike's Z just passed the 1200 mile mark (the white, bone stock one). Mine had right around 1500 miles (the blue one with the Stillen/Berk setup). Yes, there were multiple runs on each. I think around 5 or 6 runs on each, if I remember right.
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Old 03-25-2009, 09:14 AM   #7 (permalink)
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Yes you remember right Ben... I was hoping for 260hp for mine but that darn DD killed me lol. these two cars are as close as you could get in the real world the only differences was mine has navigation and Ben's had 300 more miles with the upgraded exhaust and cats. We both had about 6 runs each with the highest run recorded. Ben's car was consistent in staying around 290-291 with his setup. Mine stared out cold at 248 and once warmed up remained constant around the 253-254 range.

What is most important is how flat the torque curve is and how these mods kept them that way all the way to redline!
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Old 03-25-2009, 09:21 AM   #8 (permalink)
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well i must say then that is an amazing gain! Ben and Mike have you driven each others cars? can you feel that extra horse power? oh and are both 6spds?
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Old 03-25-2009, 09:24 AM   #9 (permalink)
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We appear to have doubters on other threads. lol

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I also still don't believe 37 WHEEL horse power from cats and exhaust on the VQ.
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Old 03-25-2009, 09:26 AM   #10 (permalink)
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well i must say then that is an amazing gain! Ben and Mike have you driven each others cars? can you feel that extra horse power? oh and are both 6spds?
Haven't driven each other's cars. Yes, both are 6MT. Both have sport pkg.
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Old 03-25-2009, 09:45 AM   #11 (permalink)
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What kind of A/F (air/fuel) ratios were you seeing between the stock and modded car?
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Old 03-25-2009, 09:49 AM   #12 (permalink)
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Ohh I can tell you Ben's car is faster lol I rolled on the throttle a couple of times that day and he ate me up! His car definitely makes more power and I can believe the 37hp!

also when we were dynoing my car sat a ok on the dyno however when Ben's car was on the dyno it wanted to jump off from the extra power. the cars on the dyno were totally different animals. Mine was calm and smooth where as Ben's was still smooth but it was almost like a lil monster was growing in their! like i said both cars a practically identical except for 300 miles and Nav (best feature EVER!) hehe
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Old 03-25-2009, 09:55 AM   #13 (permalink)
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Can each of you describe how you handled your "break-in"?
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Old 03-25-2009, 10:13 AM   #14 (permalink)
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Can each of you describe how you handled your "break-in"?
I tried to do the 'keep it below 4000 rpm' thing but really just couldn't. I ended up driving normal, which for me means that I usually shift at around 5000 rpm. I did make a point to not drive it hard until the 1200 miles were up though (i.e., no WOT to redline). I did take it up to redline during the test drive though, and I should also mention that it already had 20 miles on the odo when I bought it, so who knows how it was treated during those first 20. Finally, I don't know if this could be a factor at all, but as I work from home it took me quite a while to complete my break-in miles (about 2 months). I think Mike took a lot less time to complete his break-in cycle.
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Old 03-25-2009, 10:18 AM   #15 (permalink)
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Our dyno does read quite a bit lower then most DynoJets and DynoPaks. So don't be alarmed with a 250'ish baseline.

Here are our rough baseline numbers we typically see on our Dyno Dynamics

VQ35DE 215-220whp
VQ35HR 230-235whp
VQ37HR 250-255whp
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