Originally Posted by MMC Racing (Post 438636)

I don't think this has been asked - what PSI is that dyno at?

Originally Posted by MMC Racing (Post 438636)

I don't think this has been asked - what PSI is that dyno at?

Originally Posted by Kyle@STILLEN (Post 438450)

I don't have an exact answer for that yet but it has definitely been a topic around here.

Our biggest issue is that there is nowhere for us to get 93 octane fuel. We were talking yesterday about possible locations and the closest place we can think of is Oklahoma...We're currently looking into it though.

Originally Posted by RCZ (Post 438645)

Cool, are there any plans for a Stillen branded meth/water injection kit? Maybe you guys could talk to Aquamist, SMC, Coolingmist or Snow Performance for some support. I think it might be nice insurance and a little extra power for those who are planning on pushing the limits a tad.

Originally Posted by stormcrow (Post 438643)

Yes, we all overlooked that question. :roflpuke2:

Kyle - As far as 93 octane goes, why not just mix your 91 octane with 100 octane unleaded? There is a calculable ratio for which you can get 93 from this mixture. I believe 3 gallons of 100 octane added to 10 gallons of 91 will net a 93.1 octane fuel. :) There, I just saved you from having to import fuel from Oklahoma. *lol*

Originally Posted by RCZ (Post 438645)

Cool, are there any plans for a Stillen branded meth/water injection kit? Maybe you guys could talk to Aquamist, SMC, Coolingmist or Snow Performance for some support. I think it might be nice insurance and a little extra power for those who are planning on pushing the limits a tad.

Originally Posted by LUVZTTZ (Post 438672)

Alrighty...early March is winding down. On what day will you be dropping the Press Release? Seems like a fair question :excited:

Originally Posted by Kyle@STILLEN (Post 438433)

Figuring out the proper efficiency "range" of a Vortech supercharger takes a few things:

1) Volume of air you're trying to move
2) RPM that you're spinning the supercharger
3) Size of the engine you're trying to feed.

Basically, there might be a "sweet spot" of efficiency on the compressor map for the 370Z but it's going to be very different for an engine like a Charger SRT-8 however you can still use the same blower for each application.

One of the great things about the Vortech V3 supercharger is that it is a very efficient blower at over 70% efficiency.

Originally Posted by Kyle@STILLEN (Post 438687)

Yea, we have found a few sources on mixing 100 and 91 to get a final outcome of 93 but I don't know how much I trust it and I don't really want to risk our customer's engine's on it.

Originally Posted by stormcrow (Post 438744)

Mixing higher and lower octane fuels to achieve a middle ground is a long-standing practice and hasn't resulted in any catastrophies that I know of. But, even if there were an inherent risk, you wouldn't be risking customer's cars on it, no? You would be mixing on your own car to produce a 93 octane base map tune for your flash that comes with the kit. Or am I missing something here?

Originally Posted by Kyle@STILLEN (Post 438751)

You are correct, and we have done that in the past on some vehicle's. For example, I mix 100 octane with 91 octane on my dirtbike all the time.

But, if we are preparing a tune on our car using a 91 mix with 100 octane and say we don't get it 100% right and we end up with say 95 octane fuel...Then we're sending out a tune to our customer's who are in states with 93 octane hoping that the fuel we had in our car was truly 93...when in fact it was 95 and therefore the tune is going to be too aggressive.

is that a better explanation?

Originally Posted by stormcrow (Post 438765)

Yes, and I actually grasped that. But, unless you *really* dropped the ball in your mixing of fuels, that scenario is next to impossible. Looking at it that way, you could have all sorts of scenarios play out for the negative. What if the fuel you received from OK was watered down? What if it had degraded? What about summer fuel vs. winter fuel? (drastic differences in 93 here) All of these things are really sort of moot. If you really wanted to tune for 93, the mixing is easiest route. And I was just throwing it out there to help.

Originally Posted by stormcrow (Post 438765)

Edit - saw your addition. It's cool. Whatever you guys feel is best for your company. Truly was just trying to help you out. If it is really not an option for you guys, no worries. If you want to know more about it, here is a good fuel company created chart on mixing for different octanes.

http://www.lansystem.com/jh/octane.jpg

Originally Posted by Kyle@STILLEN (Post 438780)

I understand completely and I hope you didn't take my reply as argumentative or anything like that. Sometimes I just like to clarify that I explained myself well but by asking if it made sense can sometimes be derogatory...I hate the internet for the simple reason that it can not convey any tone in your writing other than "wow, this guy's just being a jerk!" Unless you throw an LOL at the end of everything you write in which case you look like a sixteen year old girl texting her girlfriends.

To be perfectly honest...We don't like to take chances when it comes to some of the really important things like fuel, brakes, tires, roll cages, seat frames...Any time that something can fail in a catastrophic way, we like to take a lot of pre-cautions. For example, you should have seen all of the testing that went into the development of the CCM brakes for the GT-R. We tested out at El Toro air base for a couple of months with those things. We didn't want to put the CCM brakes in the hands of a customer only to find out that something might go wrong. The good thing...we found out that they are a PITA to bed properly. It literally took us two days at ridiculous speeds and temperatures to get them to properly bed in. So now, AP Racing puts them on a brake lathe before we send them out to a customer. We don't ask the customer's to bed them in because we don't think it's safe, or even possible to do it properly.

Originally Posted by Kyle@STILLEN (Post 438782)

This could be very helpful, I will pass it to my engineering department!

Thank you very much!