I took a handful of dyno charts I found on the forum and consolidated them into an Excel spreadsheet, and then created a series of dyno charts comparing various TT and SC setups against each other, as well as against a stock 350Z baseline. I also threw in a 650 RWHP Supra just for kicks.

The link to the PDF of the spreadsheet and dyno graphs:

http://www.vulcanmotorsports.com/tmp/350z-dynos.pdf

Included setups:

- Stock
- Greddy, 4.5psi
- Vortech
- Phunk's 9psi dyno (Greddy TT)
- Kudos' 17.5psi dyno (Greddy TT, built motor)
- 650RWHP Supra from t04r.com
- APS dyno at 9.2psi from their website

The dynos are interesting. Phunk's dyno is by far the most impressive to me, because his torque curve is huge in the low-end. Much higher than any other dyno. I attribute this to the tuning, particularly his ignition timing. I suspect Charles spent a lot of time on that map, and it really paid off.

Kudos' dyno is also amazing, except the low-end torque and slow spool-up are baffling. He attributed this to the dyno, saying that SGP had a simulated load on the dyno. I'm not sure why they set the dyno up that way, but I'm hoping they can take care of that. As it is, Kudos' dyno looks a lot like a Supra dyno, but with more torque. In other words, when the turbo spools up, there is a sudden massive jump in power. Seems like it could cause some traction issues.

 

Something to note , I beleive that Phunk has tuned with >100octane. That opens huge tuning potential. The others were 94 or below. Octane can make a huge diff.

 

You really cant compare dynojet numbers to dynopack numbers....its not apples to apples.

 

Agreed. Do you know what kind of dyno the Supra was running on?

 

I understand that dynos aren't perfectly apples to apples comparisons, but the shape of the curve is still relevant.

This is not a perfectly controlled scientific study, rather a simple look at relative performance.

I threw this together on very rough sample data. I'd be more than happy to look at better data from a consistent dyno manufacturer.. I just didn't have the time to do that research this afternoon when I started this little experiment.

Feel free to submit some dyno graphs with dyno model info, and we can incorporate more consistent data.

 

Nice work though this comparison can be misleading as all of the TT Z cars would need to dyno tested on the same brand of dyno, with identical fuel octane and in identical environmental conditions to ensure a level playing field for all of the products involved.

The difference is the dynamometers utilised for the different power graphs could yeild a variation of up to 50 rwhp.

For example you could run the identical TT car on 2 different brands of dynamometer and record a 50 rwhp variation.

Maybe a thorough review could be organised in the future where all of the above items are controlled..............this would be interesting for all to view.

Peter

APS

 

True, but also I woudl expect that if you (APS) tuned to 100 octane you could have pulled far less timng and your TQ curve would be broader and higher.