Nissan 370Z Forum - ClemsonWill's Journal

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We finished up some more of my custom tune yesterday. The base tune that UpRev sent is extremely rich. The injectors were at 100% above 5400 RPM. Basically I was dumping unneded fuel into engine. We smoothed everything out to 13.0 A/F. It took a while so we were unable to mess with the timing but I hope to gain a few more horses once we get some more time to strap her back down to the dyno. Below I have attached the dyno charts.

1) These two graphs (with and without A/Fs) my original dyno with FI exhaust only compared with the tuned car with all my bolt-ons (FI TDI CBX, FI LTH, and Stillen G3). I never got a complete baseline. I know I should have but I just couldn't help myself. I had to start modding asap.

http://www.the370z.com/members/clems...w-air-fuel.jpg

http://www.the370z.com/members/clems...o-air-fuel.jpg

Next chart represents the start of the day yesterday compared to the final numbers. So you can see the UpRev tune picked up about 15 hp and 11 ft/lbs from 4500 rpm up. I think this is the most telling dyno chart to show how beneficial a custom UpRev tune can be. Not to mention my gas mileage is going to be so much better. :tup:

http://www.the370z.com/members/clems...e-same-day.jpg

I am happy so far. But I think there is definitely more room to go when I get some more time for tuning.

Should be putting the car up on jack stands today for more parts to be installed.

11,618
Mileage 9411

Here are some pics of the car on the dyno.

http://www.the370z.com/members/clems...dyno-front.jpg

http://www.the370z.com/members/clems...-dyno-rear.jpg

Sorry, these were cell phone pics. I should have the DSLR pictures up in the next week or s.

Did you get any SAE numbers?

No, I didn't. I could probably get them but it's not worth it. SAE will be slightly lower.

Nice! Can you feel the power difference from the tune? Also compared to stock and now your bolt on's, how was the power difference there?

Will that's great! Years ago I remember doing the poor man's tune on my big turbo SRT4 by running down the highway, pulling over, checking my data logger and making adjustments to keep a healthy 11.6 AFR. I had unlimited pulls just as long as I didn't get stopped...lol!

Quote:

Originally Posted by LakeShow (Post 1672030)

Nice! Can you feel the power difference from the tune? Also compared to stock and now your bolt on's, how was the power difference there?

We are talking 30 hp so I'm sure if I drove a stock one then got back in mine I could tell a difference. But to be honest I can not say it feels faster. Although I can say it feels smoother, revs faster, and sounds better with my mods and tune.

Quote:

Originally Posted by IMWEZL (Post 1672153)

:icon18: That's what I did with my S2000 and Flash pro. I would mess with the Vtec and AFs slightly but I was always too scared to make drastic changes. Luckily my buddy mostly tuned the Z so I'm confident it's done right.

Quote:

Originally Posted by IMWEZL (Post 1672153)

This is how we used to do it, but i would be driving and my friend had the laptop tuning away. :driving:

Did you get your wheels Kaien?

Quote:

Originally Posted by ClemsonWill (Post 1676001)

Did you get your wheels Kaien?

Set to hit US shores may 4th, then to me soon after...:driving: