has anyone got a dyno print out from a stock, or near stock 12A??? (mines only got extractors)

i just want to see what the stock curve looks like??

thanks

 

Man, from the title of this, I thought you were posting a dyno printout.

 

haha, thats what i thought too. i would like to see one also

 

Moi aussi.

I was waiting for 450hp N/A no nitrous

 

*grin* i guess this would be a misleading title.

 

damn it...no printout...

 

I fell into the same catagory as everyone else who's posted in this thread...

WHERE'S THE SLIP???

Jeff

 

no dyno.. heheh

 

Me too LOL

I was like damn another supped up 12A

 

Not exactly stock, but still relevant since the Nikki carb was stock...the curve was the inportant part anyway, right??

 

The best accurate source of information I have found is in "The New Mazda Guide" by Michael Hollander. On page 10 is the 12A performance curves for hp and torque. Its interesting hp climbs in a straight line to 80hp at 4000rpm then slows off to 97 at 5000, then only gets another 3hp in reaching the max 100 at 6000rpm. There is little benefit from going above about 4800 rpm except to get more engine wear!

Page 10 has a very interesting graph, the RX-7 running performance curve, showing driving force and running resistance for speed and rpm in each of the 5 gears.

 

Got a scan of this?

And does anyone have a dyno sheet for their 12A?

Once I get mine done, I'll be sure to dyno an post! heheheh

 

what mods were done to the car when you dynoed it wow it made power all the wat to 9 grand

 

The bottom of the graph reads MPH... not RPM.

 

I made 680RWHP with a stock part 12a on an "underrated dyno" (R&D Dyno in Gardena CA) and I want to show you the sheet but i dont know how to post a picture on the thread.....so please if someone could excuse my inexperiance and explain to me that would be greatly appreciated.

 

stock part???

I want to add something here, even if an engine makes no more power over 6k you have to consider winding it up more than 6k in order to keep the revs up in the power range when shifting. If I shift lower than 7k from first to 2nd I lose...take note...high RPMS rule

 

Here is the dyno sheet associated with the 680rwhp I made with my 12a www.rotaryshack.com/dyno

 

I dont see the graph. And was this at 33 PSI?

CJG

 

680 HP? hmm....

But I'm planing on do my 12a rebuild, soon as I get the cash, I was wondering if anyone knows bout how much HP I would build running a 10k+ motor, NA, with RB intake manifold, holley 4 barrel car, straight exahust?

SOme one done this yet, im sure

 

sammymatik- Without increased porting the engine will be restricted so around 125rwhp would be maximum. How are you going to get a 10,000rpm motor?

 

680RWHP,

I don't know if that's your business at the website that your dyno sheet is posted on; but the price-gouging on the corner seals and springs needs to go. Good business practice isn't to buy a Mazda part, jack the price way up, then tout it as your own "High Quality Racing Seal". Corner seals are less than $4 each, and the springs are less than $2.50 each. Also, you need to tell your customers what makes your very typical looking 'race' apex seals so special before they lay down all that money.

Here's the link if anyone wants to see what I'm talking about.

 

LOL The so-called "Racing Corner Seals" are just pre-1979 solid Mazda seals.