Jim Wolf Cam testing for the VQ37VHR -- Results inside!

abm89 · 07-18-2019, 04:37 PM

Interested in that torque gain/curve

OptionZero · 07-18-2019, 06:37 PM

what kinda gas? 93? e85?

johnnydrama · 07-18-2019, 06:45 PM

Quote:

Originally Posted by OptionZero

what kinda gas? 93? e85?

93

chuckie311 · 07-19-2019, 12:24 AM

Hmmm seems like you didn’t gain very much.. I gained 21whp on 91 gas..
I would have figured you would have been mid 360 range
What are the TQ numbers

johnnydrama · 07-19-2019, 09:16 AM

I don't have the graph or video yet from the Dynosty team but I know they are busy and will get around to it when they are able. But, thought I would go ahead and share my thoughts and opinions.

I'm bumming a little bit quite honestly. 351whp is a great result for N/A on pump 93 octane, don't get me wrong. And I should probably pull my head out of my ***. However, going into this I thought I would definitely be at or above 360whp.

I was at 341whp last may and added the following that could or would have an impact to whp rating:

-Upgraded Z1 Race intakes from standard
-Z1 Ported Lower Intake manifold
-Dewla Air Intake Guide
-Z1 2-Piece Lightweight Rotors
-JWT Cams/Springs and other supporting mods

The real kicker is that I actually lost 1-2 ft. lbs. of torque, which has me scratching my head more than anything. Even installations that didn't pick up much WHP always seemed to yield better torque ratings. And I can feel it, down low and in the midrange, more than ever the power is up top despite not raising the redline at all.

So I have a lot of questions right now. Did poor weather 92 degrees and 90% humidity have something to do with it? Are my throttle bodies a choking point? Is e85 the real star? Should I have another tuner take a stab at it?

Just to be clear as well, I do not regret doing this installation at all. I was already extremely pleased with the power this car was making and 400 crank HP was my goal all along. I'm interested in squeezing every little bit out of the car and the money and/or time to do so was not an issue. That said, I think I would be hard pressed to recommend it at this point based on the results. The car does sound better and is a blast to rev out. 350whp is a nice round number as well, and I'm sure a lot of guys would give a lot to get there so I don't want to come off as negative. Just was surprised it didn't do a little better is all.

Chuck33079 · 07-19-2019, 09:23 AM

Quote:

Originally Posted by johnnydrama

Did poor weather 92 degrees and 90% humidity have something to do with it?

Absolutely. Dyno it again in December and you'll see the numbers you were hoping for. The heat is bad, but the humidity is killer.

Hotrodz · 07-19-2019, 09:57 AM

Quote:

Originally Posted by Chuck33079

Absolutely. Dyno it again in December and you'll see the numbers you were hoping for. The heat is bad, but the humidity is killer.

Agreed! Thick heavy hot air is a power killer. I live at 3500' and when I drop a 1000' or more my performance increases significantly.

Sent from my SM-G965U using Tapatalk

OptionZero · 07-19-2019, 10:01 AM

1) same dyno machine as last time?
2) did u already have the ported upper intake plenum?
3) the header ... I don't understand why, but on Z1's instagram they talked about how long tube style doesn't always make more power. Haven't seen anyone explain it. Z1 sells short style

Chuck33079 · 07-19-2019, 10:29 AM

Quote:

Originally Posted by OptionZero

3) the header ... I don't understand why, but on Z1's instagram they talked about how long tube style doesn't always make more power. Haven't seen anyone explain it. Z1 sells short style

You explained it yourself. If they made long tube headers they would say they're the better ones.

Z1 is a pretty good place to buy parts, but they love to pump up their own products over others.

johnnydrama · 07-19-2019, 11:04 AM

Quote:

Originally Posted by OptionZero

1) same dyno machine as last time?
2) did u already have the ported upper intake plenum?
3) the header ... I don't understand why, but on Z1's instagram they talked about how long tube style doesn't always make more power. Haven't seen anyone explain it. Z1 sells short style

1.) yes
2.) yes
3.) I think it has been proven and documented that you can make power with long tube style(FI, Motordyne, PPE, etc.) or the Z1 shorty header & test pipe combo

OptionZero · 07-19-2019, 11:05 AM

Oh I have no doubt, just wondering if anyone else had such experience or heard some explanation to support that claim

abm89 · 07-19-2019, 11:47 AM

Those are great numbers despite the heat. I doubt I'd be making anywhere close to that right now. The torque numbers still seem a little lower than what I would expect with cams, but of course... heat.

Rusty · 07-19-2019, 02:11 PM

Quote:

Originally Posted by Hotrodz

Agreed! Thin light hot air is a power killer. I live at 3500' and when I drop a 1000' or more my performance increases significantly. Cold heavy air makes power

Sent from my SM-G965U using Tapatalk

Fixed it.

johnnydrama · 07-19-2019, 10:59 PM

Here is the video I took during the final pull:

johnnydrama · 07-23-2019, 10:53 AM

Here is the graph. The 342whp run is from May 2018 before the Cam installation. Temp./Humidity was also much more favorable during that session as well. You can clearly see the loss in midrange torque.

07-18-2019, 04:37 PM	#601 (permalink)
abm89 A True Z Fanatic Join Date: Feb 2013 Location: Austin, Texas Posts: 1,386 Drives: 11 370Z \| 24 EL450 Rep Power: 64763	Interested in that torque gain/curve __________________ Complete Parts List: https://github.com/abm89/ztouge-build

07-18-2019, 06:37 PM	#602 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,238 Drives: 15 370Z Nismo 6MT Rep Power: 214100	what kinda gas? 93? e85? __________________ OptionZero Build Thread

07-19-2019, 12:24 AM	#604 (permalink)
chuckie311 Enthusiast Member Join Date: Jul 2012 Location: las vegas Posts: 313 Drives: Q50/G37 Rep Power: 13	Hmmm seems like you didn’t gain very much.. I gained 21whp on 91 gas.. I would have figured you would have been mid 360 range What are the TQ numbers __________________ Tuned by (Seb@Specialty-Z) 2011 G37 Cam'd FBO 347whp 280wtq Corn Fed 4.08 Gears

07-19-2019, 09:16 AM	#605 (permalink)
johnnydrama Track Member Join Date: Feb 2010 Location: Bloomington, IN Age: 40 Posts: 601 Drives: Nismo & FPace SVR Rep Power: 2231	I don't have the graph or video yet from the Dynosty team but I know they are busy and will get around to it when they are able. But, thought I would go ahead and share my thoughts and opinions. I'm bumming a little bit quite honestly. 351whp is a great result for N/A on pump 93 octane, don't get me wrong. And I should probably pull my head out of my ***. However, going into this I thought I would definitely be at or above 360whp. I was at 341whp last may and added the following that could or would have an impact to whp rating: -Upgraded Z1 Race intakes from standard -Z1 Ported Lower Intake manifold -Dewla Air Intake Guide -Z1 2-Piece Lightweight Rotors -JWT Cams/Springs and other supporting mods The real kicker is that I actually lost 1-2 ft. lbs. of torque, which has me scratching my head more than anything. Even installations that didn't pick up much WHP always seemed to yield better torque ratings. And I can feel it, down low and in the midrange, more than ever the power is up top despite not raising the redline at all. So I have a lot of questions right now. Did poor weather 92 degrees and 90% humidity have something to do with it? Are my throttle bodies a choking point? Is e85 the real star? Should I have another tuner take a stab at it? Just to be clear as well, I do not regret doing this installation at all. I was already extremely pleased with the power this car was making and 400 crank HP was my goal all along. I'm interested in squeezing every little bit out of the car and the money and/or time to do so was not an issue. That said, I think I would be hard pressed to recommend it at this point based on the results. The car does sound better and is a blast to rev out. 350whp is a nice round number as well, and I'm sure a lot of guys would give a lot to get there so I don't want to come off as negative. Just was surprised it didn't do a little better is all. cv129, Hotrodz, abm89 and 2 others like this. __________________ 358WHP/271WTQ BUILD THREAD

07-19-2019, 10:01 AM	#608 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,238 Drives: 15 370Z Nismo 6MT Rep Power: 214100	1) same dyno machine as last time? 2) did u already have the ported upper intake plenum? 3) the header ... I don't understand why, but on Z1's instagram they talked about how long tube style doesn't always make more power. Haven't seen anyone explain it. Z1 sells short style __________________ OptionZero Build Thread

07-19-2019, 11:05 AM	#611 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,238 Drives: 15 370Z Nismo 6MT Rep Power: 214100	Oh I have no doubt, just wondering if anyone else had such experience or heard some explanation to support that claim __________________ OptionZero Build Thread

07-19-2019, 11:47 AM	#612 (permalink)
abm89 A True Z Fanatic Join Date: Feb 2013 Location: Austin, Texas Posts: 1,386 Drives: 11 370Z \| 24 EL450 Rep Power: 64763	Those are great numbers despite the heat. I doubt I'd be making anywhere close to that right now. The torque numbers still seem a little lower than what I would expect with cams, but of course... heat. johnnydrama likes this. __________________ Complete Parts List: https://github.com/abm89/ztouge-build

07-19-2019, 10:59 PM	#614 (permalink)
johnnydrama Track Member Join Date: Feb 2010 Location: Bloomington, IN Age: 40 Posts: 601 Drives: Nismo & FPace SVR Rep Power: 2231	Here is the video I took during the final pull: cv129, Rusty, Elmo370z and 1 others like this. __________________ 358WHP/271WTQ BUILD THREAD

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