94touring

Well I think my thoughts are pretty clear. Trying not to get too insulty or flamey here, but its is a joke as far as i'm concerned. I think just about any of us nopiston/rotary gurus here will feel the same way. I was already skeptical of the whole idea when I first caught word of it months ago. Now that the revealing is 2 bolts that eliminate the trailing spark plugs I can't help but laugh at the $450 price tag. I for one already knew that you didn't even need the trailing plugs, they are just for emissions. As a matter of fact my other FD only ran on 3 plugs, because I was too lazy to figure out why my other trailing plug wouldn't fire. The sad part is, many newbie rx7 guys will get conned into buying this idea that may not make a difference in reliability anyways. I say instead of paying $450 for this, why not spend an hour or less on the dyno or with any other wideband and tune the car properly.

89 Rag

I agree, how would spending 450 on the plugs, or removing the trailing plug wires and/or unplugging the coil(s) produce any different result?

skunks

dont worry, he dropped the price to 100-150 and then stopped talking all together hahahaha. anyone want a kick in the *** for 100 bucks? im selling them, first come first serve but remember... you gotta sign the nda so you can't tell which cheek i kicked to prevent farts hahahaha

Fd3BOOST

Amazing that ignorance + RX7 ownership would make a nice income to someone. Sad really.

83turbo

There's a lot out there to read regarding # of plugs, plug placement,

combustion chamber shape, etc. Remember the R26B uses 3 per rotor, which

produced a documented increase in power and improved fuel consumption.

Some people say trailing does nothing, some say it helps mileage. Mazda

claims combustion is less complete without it (but this will vary depending

on RPM / engine load).

I will say that every single plug engine design has had the plugs slightly

above the minor axis, a little below Mazda's trailing location.

Mercedes claimed best performance at 9.5:1 compression was obtained with dual

plugs. Best performance at 11.0:1 compression was achieved with a single plug

in the aforementioned location.

rotarypower101

What kind of info are you wanting ?

There really is nothing to discuss other than the fact that not running the trailing plug can change the way the flame front propagates, and the afrs you will have in the chamber.

I think it has been covered in the club thread though you have to wade through the flames.



It’s a damn bolt. The end!



On a side note I will be making these and chroming them for only $10 over his asking price if your interested. The bling adds 13.65% more horse power because I say so.

TURBOX2

i just thought i would add that i have seen the plugs, screws what ever you wish to call them on the dyno with a car running 12.5/1 af ratios on 89 octane at 15psi without any problems at ALL. I think thats pretty impressive. The idea may be simple and ridiculous to some but a few people are really going to test these and post raw data numbers....until then I think everyone should hold out on the flames until the numbers come out. Then whether good or bad you can say whatever you wish with supporting data. On another note i DO agree that the price was a little expensive for the product, which is why it HAS been reduced to 150 for the time being.



--Nick

89 Rag

A bolt for .50 cents will do the same damn thing! if you want a pretty part spend another dollar and get a chrome bolt. I can't speak for others but I don't need a data sheet, what will it show, what the HP and torque curve are as the rediculously overpriced bolt passes into someone's ***! The phrase "dazzle them with brilliance or baffle them with bullshit" comes to mind, in this case it seems to be the latter of the phrase that applies.

TURBOX2

to each is thier own...I find it hard to believe that if you can prevent detonation even 90% of the time and can run leaner a/f mixtures with 89 octane gas you woudlnt be willing to spend 150 on a product. Once again i HAVE seen this work on the dyno but i believe there needs to be some raw data to validate the product.

boostdfd3s

I would agree with you if the "product" were dicussing wasnt a BOLT with a cone on the end of it. And as it was discussed on the other forum, the bolt can't completely fill up that hole to prevent carbon from forming there. It would have to be the exact same material for heat expansion and retention and machined to a thousandth of an inch, and even then a quarter turn could make the end stick out and take ur apex seal off. Not to mention, the rotor is covered in carbon anyway....whats a 2mm hole filled with carbon gonna hurt?



Im indifferent on the issue of NO TRAILING PLUGS, waiting for some raw data to come out....but a $150 bolt is rediculous in any case