I never dynoed the car on pump, we did however make 13-15 revisions of that map. The best 60-130 I got on pump was 7.2 I believe. With this being said there is something left to be desired about my ability to get the most out of the car.

I would be surprised if the car ran a 6.3. I'm at about 750 above sea level here.

I'll for sure post a verified vbox run once I do it. I have a hard time believing some of these times people report without providing the logs or verified graphs.

 

I'm not sure what the AFR is exactly, I haven't reviewed the logs myself nor have I driven the car since they dyno pull. The weather has been crappy here in central Ohio.

 

A couple of runs I just did 4th gear, so it takes out the "ability" factor and more consistency for measuring delta's before and after mods.


I know about the 60-130 #'s, but I use it under the same conditions to measure and it is almost flat and almost going a tad up hill. I don't care for bench racing 60-130 based on what your saying above, as when your door to door on the streets is how you tell who is faster in the real world.


Just do a 4th on a even road (repeat all test there) roll up to 45-50, mash the throttle, hold on until 7200rpm, repeat three times (after a mile or so cool down), take your average and bang! So when you do your next mod you can do the same test and see your delta difference.


If you do the above on a flat surface you should be 6.1's or better for sure with that power band you have and wouldn't be surprised if sub 6's rolled up.


When you did your pump gas 60-130, what method did you use?

 

Yes, Xona uses the HTZ compressor wheels.

 

I'd be interested in the logs if they're available.

-Jose

 

some solid numbers !

 

Here is the Log from the 704-691 dyno pull

Looks like my injector duty cycle was around 86% with the 1000cc injectors which I am very happy with.

I know I have/had a small boost leak on bank 1 at the intercooler. I need to re clamp the hose and I just haven't had the time to pull the intercooler to do so.
You can see the duty cycle on the turbo on that side is a little higher.

Looking at the 65mm VTG duty cycle you can see these guys are not nearly working as hard as they are capable. What would be interesting to see is how these 65mm HTZ wheels compare to the 68mm HTA wheels. I would surmise that the 65 mm are more efficient and would make as much power yet with less back pressure.

 

Looking good Ron!!

-Mitch

 

The limit with either turbo is probably going to be in the turbine. You might get a little more with the 68mm over the 65mm though. The difference between 65 HTZ vs 68mmHTA would still favor the larger wheel based on the anecdotal evidence I've seen.

 

Well Dan we almost figured that out. Anyone else have a 68mm dyno chart on e85?

 

You burning up some rubber out there?

 

I was about to get one but ran into some difficulties.

 

what is the rated flow capability of the 65htz? it's 47lb/min for the 68hta in the Champion turbo.

 

Guys the only way you are really going to know which turbo performs better i.e. 65mm or 68mm is to run both side by side on same day all the way up to VMAX. Until you do that this dyno info is v.interesting but not properly field tested

Intrigued to see the results myself.

 

The 65HTZ flows at 44 lb/min and responds better being smaller. HTA are still better than most. Plenty of air I have found and a nice match. Lots of cars running strong with this set-up and room to go.