Had a ton of runs today. But i was dealing with a heat soak issue. My times would be a full second slower if i just did a hot pass. 90F ambient temps, intake temps were 100+ at the start lines. That plus having to deal with a ton of wheel hop if i spun the tires.
Basically what it boils down to is this car is not meant for the straight line. Though this car is a blast in the twisties. If i had 60F temps, with a bigger Intercooler i could have hit 13.4 i'm sure.
Car is set up with Megasquirt II, using launch control and flat foot shifting. Mod list is pretty long, so i post the relevant stuff:
Stock engine internals. 12psi. FM kit, gt2560 (ported and polished header turbo (cold and hot side) and cast downpipe), MBC(junk need to get EBC working), turbosmart BOV, FM 2.5" Exhaust w/ test pipe, MegaSquirt, AEM wideband, 750cc 5o injectors, Mishimoto 3 row(huge) radiator, and Mishimoto slim fans. ebay front mount FM stage 1 clutch. 195/50/15 Yokohama S-Drive tires, Bunch of suspension stuff / tons of chassis stiffening, full brake system upgrade and other miscellaneous things.
Car is a 94 r package car and has a full interior, and trunk, with the spare tire.
MegaSquirt RX7 (UPDATE 5-21-2013)
I own a 1988 Mazda rx7 gxl and this is what has been done to the car:
J-spec S5 TII 13B with Stock Ports (bough used from Japan and no internal
upgrades at all)
MegaSquirt II V3.0 (Bowling & Grippo 2005, with NO additional VR card)
Stock CAS (modified with 2 teeth taken out/ 180* from each other)
Stock N/A leading coil
Stock N/A trailing coil that has been modified as well
NGK Spark Plugs
NGK Spark Plug Wires
1000cc Delphi Primary and 1200cc Secondary
Aeromotive A1000 Fuel Pump
100 Micron Fuel Filter
6AN Stainless Steel Braided Fuel Lines
E85 with premix (need help getting afr's correct for E85 usage...)
Maxima Castor 927 premix (just as good as Klotz Benzol - I do a 1gal : 1oz
All emissions have been taken off
Power Steering Delete, A/C Delete, No Power Brakes
NGK PowerDex AFX Wideband
Hallman ES Manual Boost Controller
T76 .81 A/R P Trim Ceramic Ball Bearing turbo
3" Down Pipe to 4" Glass Pack to a DynoMax Exhaust
44mm HKS Wastegate
Greddy RS BOV
I'm currently using TunerStudio MS V2.0.6
as for the firmware: ????? not sure
Coil timing (approximate advancement) "approximate" due to the timing light
shifting back and forth from the yellow mark/in-between/ and red timing
I have the CAS stabbed 4 notches counter-clockwise from the timing dimple
L1 = 0* advanced (closest to the yellow timing mark)
L2 = 0* advanced (closest to the yellow timing mark)
T1 = 15* advanced (closest to the red timing mark)
T2 = 5* advanced (closest to the red timing mark)
MSII V3.0 parameters:
Spark Mode: Toothed Wheel
Trigger Angle: 0.0
Ignition Input Capture: Falling Edge
Spark Output: Going Low (Normal)
Number Of Coils: Wasted Spark
Spark A Output Pin: D14
Dwell Type: Standard Dwell
Maximum Dwell Duration: 3.0
Trigger Wheel Arrangement: Single Wheel With Missing Tooth
Trigger Wheel Teeth: 12
Missing Teeth: 1
Tooth #1 Angle: 175.0
Wheel Speed: Crank Wheel
Second Trigger Active On: Disabled
And Every Rotation Of: Crank
Enable Rotary Mode: Rotary On
Output Mode: FC Mode
RX8 Mode: Disable
MegaSquirtPNP Miata MM9093 MM9495 MM9697 Setting Base Timing
How to set your base timing with the MegaSquirtPNP for Miata Models MM9093,
MM9495 and MM9697. These are MegaSquirt-I Extra Firmware based EMS Systems
for the 1990-1997 Miata. This video is pulled from the CD-ROM supplied
with the MSPNP ECUs as instruction for the install process. For more
information go to http://www.megasquirtpnp.com or
Junkyard Turbo Swap! Chevy-Powered 1971 Datsun 240Z Autocross Thrash - Roadkill Ep. 26
What do you get when you cross a rusted 1971 Datsun 240Z with a Chevy 4.3L
V6 and a turbo from a Ford Power Stroke
Diesel? The Rotsun! During Roadkill Episode 25, Freiburger and Finnegan
revived the Rotsun expecting it to dominate in the 9-car autocross showdown
of previous Roadkill project cars. It also needed to beat a 2014 Kia Rio 5,
but failed to do so with the Rotsun shamefully breaking down before
completing a decent lap. So in this episode: revenge. After swapping in the
mismatched turbo and making nearly 400
rear-wheel horsepower, the guys head to
the autocross at the Goodguys 5th Spring Nationals in Scottsdale, Arizona
and mingle with fans on their way to a rematch with that dastardly Kia.
Roadkill appears every fourth Friday on the Motor Trend channel.
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LS3 V8 Miata Build - Project Thunderbolt Part 3
This time we let that big LS3 out of its crate, mount it up to its new
subframe and modify our engine bay to make it all fit!
Visit me on Facebook: http://www.facebook.com/TomsturboGarage
More Thunderbolt photos and details at: http://www.V8Mazda.com
Project Thunderbolt has been made possible by:
Summit Racing has a massive catalog of parts available at great prices.
They offer excellent technical support, friendly customer service and
lightning-fast shipping. I've been a Summit Racing customer since 1991 and
have always been impressed by their service and support.
V8 Roadsters is your Mazda engine conversion and performance specialist!
They are the masterminds behind this LSx drivetrain swap kit and much more.
From brake upgrades to Getrag differential install kits to complete
turn-key engine conversions, they are the best at what they do.
Thank you for watching! -Tom
Dragracing 101 - The Tree and Staging
What's a "Christmas tree"? How does "deep staging" work? Why is that red
bulb lit? These, and many other questions are answered on this episode of
Drag Racing 101