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At UpRev getting the 370 Tuned

Originally Posted by semtex 5th. no shyt bro? I dyno'ed in 4th every time i've done it, dyno'ed from 267 to 283 w/ HFC's in 4th, so your saying I

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Old 10-29-2009, 06:49 PM   #31 (permalink)
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Originally Posted by semtex View Post
5th.
no shyt bro? I dyno'ed in 4th every time i've done it, dyno'ed from 267 to 283 w/ HFC's in 4th, so your saying I could actually be putting down more?
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Old 10-29-2009, 06:50 PM   #32 (permalink)
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Sharif was telling me that with Dyno Dynamics, he can adjust the settings to compensate for whatever gear he's running the car in. So as long as your guy had the settings correct, it shouldn't matter. DynoJets do not have that setting adjustment, however, so it's more important to be in the correct gear on a DynoJet if possible.
That sounds about right, the guys at Engine Logics stated it did not matter what gear I did the run in as this is a Dyno Dynamics.
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Old 10-29-2009, 07:03 PM   #33 (permalink)
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no shyt bro? I dyno'ed in 4th every time i've done it, dyno'ed from 267 to 283 w/ HFC's in 4th, so your saying I could actually be putting down more?
Yes, if you're dyno'ing on DynoJet. Here's a pic of the screen from that day they accidentally did some runs in 4th instead of 5th, to give you a better idea.

RunFiles 001 and 003 were done in 4th. 002 and 004 were done in 5th.

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Old 10-29-2009, 07:17 PM   #34 (permalink)
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Actually, I think a big part of the difference in power is in fact the intakes. I disagree with Rich on that note.
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Old 10-29-2009, 07:32 PM   #35 (permalink)
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Would it make much of a difference on a dyno though? Because the hood would've been open, right?
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Old 10-29-2009, 07:36 PM   #36 (permalink)
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Would it make much of a difference on a dyno though? Because the hood would've been open, right?
He might gain 5-8 more HP with stillen G3, because the hood open with short ram intakes will create false results. We saw that with me when I did Takeda, I did close hood tests and Takeda did open hood test and they saw gains while I did not.
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Old 10-29-2009, 09:20 PM   #37 (permalink)
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Yes, if you're dyno'ing on DynoJet. Here's a pic of the screen from that day they accidentally did some runs in 4th instead of 5th, to give you a better idea.

RunFiles 001 and 003 were done in 4th. 002 and 004 were done in 5th.

Precisely what I was on.
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Old 10-29-2009, 10:13 PM   #38 (permalink)
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Yeah I'm surprised he's not into the 300's, considering his mods. Caneman -- is your car manual or automatic?

Edit: I just went back through the thread and noticed that he doesn't have the G3 intakes. That would account for some of the difference.

I agree as mine dynoed 293 rwhp on UPREVs dyno with my mods. And I have a HR 350z.
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Old 10-29-2009, 11:50 PM   #39 (permalink)
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Had my 370z dynoed with Uprev at Indecracing in Kent, WA. today. They were the 3rd dealer in the US to sign up with Uprev when they started and know their stuff. This was their first 370z they have done and there is a learning curve involved. He was on the phone to Uprev a couple of times and Uprev was in the process of doing another 370z at the same time. He installed five maps: performance, economy, stock, valet and theft. It is controlled with the cruise control switches. I was there for about five hours with about half the time on the dyno. Lawrence, the owner, spent about 45 minutes smoothing out the A/F maps on his computer. A couple of notes: the graph is SAE corrected (not sure if that is what everyone else is showing - uncorrected [actual horsepower] was over 300. The runs were made in 4th gear so numbers may be a little low. Interestingly, my car seems to like a rich mixture and when he leaned it out more it started to lose power. Also, Uprev is working on cam adjustments but that is somewhere down the road. My mods are R2C intake(with Modshack vent), Berk HFCs and smaller crank pulley. They use a DynoJet, model 248C.
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Old 10-30-2009, 08:55 AM   #40 (permalink)
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Had my 370z dynoed with Uprev at Indecracing in Kent, WA. today. They were the 3rd dealer in the US to sign up with Uprev when they started and know their stuff. This was their first 370z they have done and there is a learning curve involved. He was on the phone to Uprev a couple of times and Uprev was in the process of doing another 370z at the same time. He installed five maps: performance, economy, stock, valet and theft. It is controlled with the cruise control switches. I was there for about five hours with about half the time on the dyno. Lawrence, the owner, spent about 45 minutes smoothing out the A/F maps on his computer. A couple of notes: the graph is SAE corrected (not sure if that is what everyone else is showing - uncorrected [actual horsepower] was over 300. The runs were made in 4th gear so numbers may be a little low. Interestingly, my car seems to like a rich mixture and when he leaned it out more it started to lose power. Also, Uprev is working on cam adjustments but that is somewhere down the road. My mods are R2C intake(with Modshack vent), Berk HFCs and smaller crank pulley. They use a DynoJet, model 248C.
That's a very respectable gain. Congrats!
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Old 10-30-2009, 09:15 AM   #41 (permalink)
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That's a very respectable gain. Congrats!
Noob question. When folks speak about invalid readings with the hood open (with short-tube intake mods), I'm guessing that is it due to lower temps in the engine bay, right? I'm only familiar with dynos for motorcycles (DynoJet w/Power Commander, etc).

To take it a step further, when a car is in motion (cooler air being drawn into the engine bay), numbers should be higher than a stationary vehicle on a dyno, right?
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Old 10-30-2009, 09:30 AM   #42 (permalink)
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Noob question. When folks speak about invalid readings with the hood open (with short-tube intake mods), I'm guessing that is it due to lower temps in the engine bay, right? I'm only familiar with dynos for motorcycles (DynoJet w/Power Commander, etc).

To take it a step further, when a car is in motion (cooler air being drawn into the engine bay), numbers should be higher than a stationary vehicle on a dyno, right?
Temps are part of it, but airflow is also a big (if not bigger) issue. When you have your hood open, the filter elements are free to draw in as much air as they want. But when you actually drive, you drive with the hood closed (hopefully), and with the hood closed, the air is much more restrictive (and hotter). Let me put it this way, the inlets for the G3 intake sit in front of the radiator behind the bumper cover. A test was performed (by RCZ I think) comparing dyno numbers with the bumper cover on vs off. Not surprisingly, the numbers were better with the cover off. So we have the same principle at play here. Air flow is going to be more restrictive with the bumper cover on than it will be off. So dyno numbers with the bumper cover removed are going to be somewhat elevated -- "invalid," if you want, because we drive with our bumper covers on, not off.

Regarding the car in motion and how that affects airflow, yes airflow will be better with the car in motion. That's why dyno shops typically aim huge fans in front of the car during dyno runs -- to simulate driving conditions as much as possible.
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Old 10-30-2009, 09:55 AM   #43 (permalink)
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Now I have to find a local Protuner
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Old 10-30-2009, 06:00 PM   #44 (permalink)
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Old 10-30-2009, 07:17 PM   #45 (permalink)
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caneman88,

If you're willing some time, I'd love to get a ride in your car. I live in San Antonio and have still not started the modding process but would like to get a feel for what is possible with bolt on's AND a tune.

Thanks,

Tony
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