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Aren, Thanks, I will take you up on that. I have decided to do a short run of this design. It will likely take a couple of months, but then I will have them. Thanks Joe

Do any of you know anyone in the Raleigh, NC or Los Angeles, CA area that are running the 4 piston calipers with 15" or 16" wheels? I have the caliper, I have the design, just need to check clearances before manufacturing. Thanks! Joe

I have been working to get the cost down. Unfortunately, at low volumes they are pricey to manufacture. Joe

Nigel, Yes, plans have changed. Four years ago I had a lot of ideas of where I wanted to go with the technology that didn't work out (mostly military applications). I spent a lot of time and money on that application, as well as on overseas patents, and got into a hole. Then my 240Z was stolen, stripped and dumped in the LA river AND then came the crash of 2008! I am happy to say that I am in a position to start expanding the product line (i.e. I am not broke anymore). But I no longer have my Z car. Nigel, what size wheel do you run? Is there clearance between the caliper and the wheel? Thanks, Joe

Gentlemen, The brake coolers took a long hiatus over the last couple of years, but they are back in development! I have the designs for the Toyota four piston conversions, but I would like to find out what the market would be for them. I will be releasing the Porsche Boxster units within the next month. The Corvette C5 is planned after that, but if there is enough interest then I can manufacture the ones for the Toyota's before the corvettes. I just need to know how much clearance is available between the caliper and the wheel and how many people will buy a set if they are less than $165 per set of four (complete front axle). Please visit the www.fourproducts.com and go to the contact page and let us know that you want them and if there are enough of you then so be it! The Corvette shall wait! Joe CEO, Four Products LLC Former Z-List moderator Associate Editor Nissan Sport Magazine

Thanks Daniel, I think that I found it, but what was confusing was that nothing else was changing. It appears that my accel trigger level was too low. I bumped it up and it didn't do it nearly as much. Gonna bump it up a little bit more.... Now if I can just solve me starting issues I will be happy. Joe

Dataloging is how I found out that it was happening. Pulse width is jumping up without any apparent reason.... What I mean is nothing else is changing to cause it.... I am confused. If it were noise on the TPS then that would show up.... Joe

Hi all, Still trying to trouble-shoot my megasquirt installation. 2.9L L28, NA. Using Flyback circuit. I am looking at my datalog and I am having these jumps in the injector pulse widths that are random. Just cruising along and the PW doubles briefly. This causes the car to bog down temporarily as it floods. There is no corresponding change in the TPS that should be causing it although the MAP does change after the event. Any ideas what it could be? Thanks, Joe

OK, I upped some of the settings in the VE table and the surging got much better, but still not completely gone. One issue that got worse was I now have an incredible backfire between shifts. What knob to I adjust to get rid of this. Can anyone direct me to some settings that someone knows work for a NA L28? Also, how do I set-up a wide band O2 sensor - any links? Thanks, Joe

I completely don't understand this. What is the o2 authority and how do I set it? Thanks, Joe

What is involved in switching to a wideband O2 sensor? I have had people tell me that that would help me run closed loop...do you have a link or parts list? For now, I think that I am running too lean. I will increase my required fuel value - that should effectively up everything across the ve fuel table, shouldn't it? Thanks, Joe

I am pretty sure that flyback was built into this board, so yes. I am not sure about the a/f ratio.... to the right of center means too much air (a large f small)? joe

Hi all, I am still having trouble with my Megasquirt setup on my 70 240Z. I am just running injector control and I swear, if I wasn't planning a turbo upgrade the SUs would be back. I still have lots of trouble starting it. I have to depress the pedal slightly and if that doesn't work I have to hold it on the floor. Also, when I am driving at a constant speed it feels like someone keeps tapping the brake pedal...I guess this is the opposite of surging. It does it under slight acceleration as well. On hard acceleration it doesn't do it. I am posting all my tables - any help would be much appreciated. This is a l28 that is bored out 30 over with the standard injectors without the dropping resistors. Nothing else special. Thanks! Joe

That is where I am as well....slight push of the throttle. I am much happier though! Now I need to address the surging problem that I am having. I will probably post the tables and settings to try and address that one. Joe

OK, this is the first time that I have heard about being able to run these closed loop. Is this because I am not running a wideband O2 sensor? Thanks, Joe