Forged Performance: 370Z Greddy TT Complete Package Results

DarkZide · 10-30-2010, 01:15 PM

Quote:

Originally Posted by Ryan@Forged

yes, we always dyno in 4th

Why? Aren't you supposed to dyno in the gear that is closest to a 1:1 ratio but not into overdrive. The 5th gear in the 6 speed is 1.00.

'10Anamoly · 10-30-2010, 02:22 PM

Numbers look good for 5psi. Blue couplers, not my style, but congrats on the build!

Sharif@Forged · 10-31-2010, 11:06 AM

Quote:

Originally Posted by DarkZide

Why? Aren't you supposed to dyno in the gear that is closest to a 1:1 ratio but not into overdrive. The 5th gear in the 6 speed is 1.00.

The 1:1 ratio needs to used on intertia dynos such as the DynoJet. On Load Based Dynos like the Dyno Dynamics and Mustang, the gear choice does not affect peak power so most of us 4th gear to keep the roller speeds down. We've done many 4th and 5th gear tests and the peak numbers are the same. Hope that helps.

DarkZide · 10-31-2010, 02:08 PM

Quote:

Originally Posted by Sharif@Forged

The 1:1 ratio needs to used on intertia dynos such as the DynoJet. On Load Based Dynos like the Dyno Dynamics and Mustang, the gear choice does not affect peak power so most of us 4th gear to keep the roller speeds down. We've done many 4th and 5th gear tests and the peak numbers are the same. Hope that helps.

Oh ok, I didn't know there was a difference in that respect.

Do you have to input that information into the dyno for it to make the right calculations?

ImportConvert · 11-08-2010, 11:21 AM

Quote:

Originally Posted by DarkZide

Why? Aren't you supposed to dyno in the gear that is closest to a 1:1 ratio but not into overdrive. The 5th gear in the 6 speed is 1.00.

Correct. Lots of 5.0 GT owners were dynoing in 4th and making near 400whp. They then got a bunch of them to properly dyno in 5th and the average was more like 360whp. It matters.

theDreamer · 11-08-2010, 11:24 AM

Quote:

Originally Posted by ImportConvert

So...how did you get a nice looking curve? I thought everyone had trouble tuning these and it resulted in some wavy lines past the 6K mark or so? Is this a problem of the past?

Tuning out the top just takes time and each Z will all be different based on the mods done.

Quote:

Originally Posted by ImportConvert

Correct. Lots of 5.0 GT owners were dynoing in 4th and making near 400whp. They then got a bunch of them to properly dyno in 5th and the average was more like 360whp. It matters.

Yes and no, it matters on what type of dyno you are running the car on.

ImportConvert · 11-09-2010, 11:41 PM

Quote:

Originally Posted by theDreamer

Tuning out the top just takes time and each Z will all be different based on the mods done.

Yes and no, it matters on what type of dyno you are running the car on.

Why was Z1 turning out such choppy tunes previously? Just didn't take the time, or has there been more advancement in understanding the PCM as of late?

10-30-2010, 02:22 PM	#2 (permalink)
'10Anamoly Track Member Join Date: May 2010 Location: GA Posts: 882 Drives: 2010 370Z BS M6 Rep Power: 18	Numbers look good for 5psi. Blue couplers, not my style, but congrats on the build! __________________ 2013 Ford Mustang GT 374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd

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