marsredr100

iTrader: (1)

322g/s @ 8600 rpm on 10-22-08

Rote8

It got cold up there?


Could you have an intake leak pre-blower?
To eliminate the wost possible problems;
Did you have antifreeze?
In the intercooler too?

marsredr100

iTrader: (1)

That's nice but can we get more pictures of your toes?

marsredr100

iTrader: (1)

The insulation will provide quicker drops in AIT once you start spraying meth, lower AIT while spraying and it will prolong AIT increase once you stop spraying. Also, your AIT will be @ 5 degrees lower (no meth) while sustain cruising on the highway. It will not help if you are on extended stop and go traffic.

olddragger

iTrader: (3)

it got cold but just in the 40's and besides on the way home in the 60's--still there.
i do get intermediate a/f's in the 15's so it may be ignition --but to both rotors at the same time? time to break out the voltmeter--i guess.
no intake leak.
OD

marsredr100

iTrader: (1)

Start with making a nice doorstop out of your mazsport ignition solution. Then get yourself four yukon or msd coils followed by a pair of ngk 10.5 for the leading plugs and 11.5 for the trailings. I can crank my car (after it sits parked for a week) early in the morning, move it for less than half a minute, shut it off and crank it back up later with no issues whatsoever. Ever!

Rote8

The Mazsport ignition works fine; as a base to hold the Yukon/LS1/MSD coils.

morkusyambo

OD. I would go ahead and replace the Mazsport igniton setup with something else. Its not like you're gonna be able to buy replacement parts for it anyways(sorry, couldn't help myself!). I was having misfires as well untill a few weeks ago. I was running trailing RX7 plugs due to the recommendation of Mazsport(heh, go figure). I then switched back to brand new OEM plugs, gapped to .030. Wala, no more misfires, running smooth as silk.

BTW, i've been running the MSD coils for a few thousand miles now with no problems.

shinka213

how did you know they were mine???
they could have been moons....

california style

I think 337 g/s is my highest (recorded one anyway)

Rote8

This is only during a burst, but it will set your head against the seat.

marsredr100

iTrader: (1)

Are you kidding me? I can spot sexy toes from afar.

Besides, I bet you dollars to doughnuts that Moon’s toes are packed with plenty of toe jam.

morkusyambo

Rote8, what was the #?

olddragger

iTrader: (3)

yep i agree--worked with it some last night and I think i have boiled it down to ignition. Funny I have been running these since march?
Maybe its a wire--checking further.
new plugs gapped at 30 already.
only a po301 now and only with a little load. car is a little bit--not much--harder to crank maybe 4 turns versus 3 before.
i have a set of good oem coils, one thing good about the ms ign is I already have the connectors you need for the msd/yukon set up!! Already have the wires too!!
Summitt racing is 40 min away. The money is about 2 months away
I will just have to remove the ignitor box set up.

Ya'll call that offroading? COme on down to Ga and let me show you how it is done clay hills from caulk mining that are 200 meters high and at about 80% incline! All the mud and water you would ever want! I ran a cj5 with 36 inches and I had a loaf of bread floating in the floorboard!
Fun isnt it!
OD

Bastage

iTrader: (1)

Not sure if you're aware, but you can get 4 yukon coils for about $90 shipped from these guys:

http://www.northeastcore.com/

That's where I got mine.

MazdaManiac

iTrader: (3)

Don't forget that, at the torque peak (where your maximum MAF readings are occurring), the S/C is using 30 - 40 g/sec just to power itself, so you have to deduct that from your net power calculation.

Bastage

iTrader: (1)

looks like 361.04 g/s

Brettus

iTrader: (2)

Interested to see if the MS coils are your problem - they didn't last long if it is !!!

morkusyambo

I'm not sure what you're talking about, but we are discussing the maximum g/s which usually occurs @8500 rpm.

Where did you read that the S/C uses 30-40g/sec to power itself?? Isn't that like 30-40crankhp??

olddragger

iTrader: (3)

it was the coils--installed the oem set and she is purring.
Damn expensive lesson. coil wires metered out ok so i can use them
Thanks Bastage i did not know that --yhay helps one heck of a lot!!
just added a little anti freeze --getting down to 26 tonight--were the hell did this come from?
Too early to tell but i actually thing the car is running better with the oem coils.
damn expensive lesson.
oh well i got such a good deal on a transmission--low mileage--- that i guess it makes up for it.
Welcome back MM
OD

MazdaManiac

iTrader: (3)

That is pretty late, but that is also a characteristic of the S/C. It pushes more air on RPM, rather than engine demand. Compare the torque curves for a visual on that.


What do you mean "read"?
That is what it uses at peak load, minimum. It is probably closer to 50 in this application. It pulls nearly 1.5 HP at idle!

That is why you see roughly equivalent net power between the turbo and the S/C with such a wide airflow discrepancy.
The 6 - 10 HP the turbo takes out of the net power is already built into the metered airflow.

Rote8

Remember, you can use the Mazsport coil bracket to mount LS1/MSD coils...

Rote8

That one was 361, my best ever (so far) was 369
I wonder what the MAF tops out at?

I need to upgrade my coils and injectors soon....
Working on doing both by next month.

MazdaManiac

iTrader: (3)

Technically, it tops out at 365 g/sec on the OE scale.

However, your flash may extend that, depending on what your tuner did.

rx8thunder

Asked this in a SC vs turbo thread bit didn't get a real answer. Hoping you guys can offer your perspective.

I've seen all of the charts and have read a fair amount about both SC and Turbo options but have not driven either (none avail in my area). Would like some perspective from those that have actually driven both. Looking for "driveability and feel" differences for a DD. I assume that the numbers only tell part of the story. Please tell me the rest. How is the Petit SC experience different than the turbo experience on the road and track? Thx