Wow, that's in sharp contrast to the apparent enthusiasm you had for testing these in a controlled setting in the beginning. Something must have happened to change your mind about fooling with it. That's disappointing, because no one would question your results, versus the people trying to sell the product.

 

Dave,

I guess there are some mechanics behind it that I don't fully understand. First, I'm still trying to figure out why a stuck injector wouldn't just cause fuel cutoff, rather than detonation. Also, due to the vagueness of exactly what and how the KDR Anti-Det device works, I'd think it should/could prevent detonation of any sort. But of course, every device has it's limitations, and chances are, this is one of them I guess...

 

I was wondering the same thing, why wouldn't it just stick fully open? Static?
Dumping more than enough fuel, it wouldn't detonate. If it stuck when closed, I wouldn't think it would leave enough fuel for any combustion let alone detonation.
That's similar to fuel cut rev limiters or the traction control that some people use.

 

David (right? lol), that's *exactly* what I was thinking of...like the rental car fuel cuts...while it's ECU based, it's STILL a fuel cut nonetheless. You just don't have any fuel left, and you lose power. Don't stock FD's have fuel cut AND a rev limiter?

 

I have seen the KDR device, I have not signed any non-disclosure, and I can tell you that the PG Unlimited device is NOTHING like what KDR is researching.
The PG device looks like a machined plug that screws into the trailing plug hole, and that's it. Everyone remembers the picture.
The real device clips onto your existing plug and fills the trailing hole perfectly, and the trailing plug wire stays connected (IIRC).
I think the key to this device is a 'chip swap' onto the stock ECU for fueling and timing. The last test I heard about this had a dyno run of the chip go south because the programmer forgot to bypass fuel cutoff! Poof.

I think the market for this device will be owners interested in performance mods without the expense and learning curve (& potential newbie disasters) of standalones. I suspect that excludes most enthusiasts here...but I bet there is a relatively large market of FDs out there that qualify.

 

I wanted to test them more but never could find the time. My car was tuned for 20lbs and race gas which I ran all the time and that made it more time consuming for me to tune for the plugs. From the little time that I used them the car ran really. Someone send me an email if you would like to do more testing on these.

Jason

 

You guys forget that the primary will still be firing in some fuel, a little less than half what is required. This is enough to maintain combustion. The very hot compresed air of high boost is still being shot inward, the lean mix heats up the rotor surface, and the little bit of fuel that continues to come in starts hitting that hot surface and pre-igniting, which is detonation.

IF you could cut ALL the fuel from the engine instantly, then yes, it would never result in detonation, just a stall/limiter condition.

 

That's strange. I have it and I'm running a Microtech LT8S.

 

Hi Black97. I did not mean to be misleading. Of course it could be used with standalones. My point is that for people without expensive standalones, they might enjoy the same benefits of performance mods without worrying about putting out $$ for ECUs and tuning while getting some safety via the device.

 

I thought your car was still@KDR?

 

It is. But everything is installed save for the GReddy FMIC. I'm thinking about just bringing it home with my PFS SMIC, just so I have it back and can start breaking it in.

 

So you haven't actually driven the car with said device?

 

Nope. But Skip said it works really well with the MT. And another member who lives in the same town as me, Conv. WS6, had the device on his car with a PFC and and loved it. He was the one who convinced me to get it. I'm still slighty on the fence but from what I understand it's nothing permanent so I can change it back later.

Sorry, if I was getting a little ahead of myself.

 

skip has been trying to get me to convert from power fc to microtech. I think it is their favorite ecu, because i guess it can do some things that skip has been trying to perfect as another new way of tuning or something.

 

Plus it gives them more money! KDR's ECU of choice used to be the PFC, I remember hearing something about the anti-detonation device and the PFC don't get along to well.

 

They made no money off of me buying anything. I outsourced almost every single part. They just built the engine and installed it.

Skip did say with the Anti Det and the PFC I could run 19psi on pump. He said with the Microtech he would be able to go even higher.

 

So you didn't have to pay them to install the Microtech?

 

Yeah but if it weren't the Microtech then it would've been the PFC. They said the Microtech is easier for them to tune so I would save there.

 

You are aware that the PFC is straight plug and play right? Meaning you pretty much disconnect the factory ecu and plug in the PFC.

 

Hm, I may have to swing by KDR and speak with Dave about getting this device installed to see if it can help minimize my propensity for breaking apex seals

 

Yes. But if it were going to take them more time to tune it than the Microtech, then the tradeoff wasn't so bad.

 

When you say 19psi on pump gas, what octane level are you referring to?
(because supposedly even with forced induction the anti-det device allows for lower octane fuels?)

 

I'm assuming 93, but I haven't really talked to him about it in depth yet. I will bring it up when I call tomorrow.