3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
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Old 05-26-08, 01:40 PM
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Sounds like a good read
Old 05-26-08, 01:48 PM
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Damn Howard, I'm on the edge of my seat!
Old 05-26-08, 02:55 PM
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Howard, Good Luck,

Ken
Old 05-26-08, 09:18 PM
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Originally Posted by howard coleman
just a quick comment to assure interested parties that this thread will NOT degenerate into a food fight between people who wish to discuss whether other engines are appropriate. if you do wish to discuss this feel free to start another thread, maybe in the lounge section. posts as to how you feel about alt engined FDs have and will be deleted.
Thanks Howard. I'll be sure to return the favor on V8RX-7Forum.com.
Old 05-26-08, 09:19 PM
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Tuning in. I can't wait to see the results, especially from someone with an open mind.
Old 05-26-08, 09:22 PM
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Ive always heard that torque wins races? Any enlightenment on that aspect would certainly be appreciated.

How is the comparative weight distribution between the 2 setups.

Should be a lot of fun regardless of outcome!

-chuck
Old 05-27-08, 12:00 AM
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I'm subscribing to this as well... Excited to see results! Good luck Howard!

Originally Posted by a3dcadman
Ive always heard that torque wins races? Any enlightenment on that aspect would certainly be appreciated.

-chuck
Give this a quick read: http://www.yawpower.com/tqvshp.html
Old 05-27-08, 12:34 AM
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Originally Posted by a3dcadman
Ive always heard that torque wins races? Any enlightenment on that aspect would certainly be appreciated.

How is the comparative weight distribution between the 2 setups.

Should be a lot of fun regardless of outcome!

-chuck
They should both me very close to 50/50.
The LS2 FD car might actually had a tad more over the rear wheels as compared to the 13B FD.
Old 05-27-08, 06:16 AM
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"How is the comparative weight distribution between the 2 setups."

both cars will be weighed on my scales this week. rear weight wins on a road course w a front engined rear drive car...

to that end, each car has a rear mounted battery, no PS or AC.

should you wish more DUAL PURPOSE chassis/setup info today visit the Suspension section and read post one of my thread entitled: "Howard Coleman's chassis/suspension setup for the FD."

hc

Last edited by Howard Coleman; 05-27-08 at 06:54 AM.
Old 05-27-08, 09:08 AM
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Both cars have coilovers so if it's possible corner balance them.
Old 05-27-08, 10:09 AM
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subscribed.

I've been waiting for a thread like this ever since I heard about a LS1 FD. Howard, I'm glad to see it's you taking it on in your typical scientific approach. I'm also anxious to hear your impressions of driving a LS1 FD on the track.

now that you've got us all on the end of our seats, when is the first track day?
Old 05-27-08, 10:31 AM
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Originally Posted by a3dcadman
Ive always heard that torque wins races? Any enlightenment on that aspect would certainly be appreciated.

How is the comparative weight distribution between the 2 setups.

Should be a lot of fun regardless of outcome!

-chuck
+1

Supposedly, all things being equal, the car with more useable/tractable torque "under the curve" should win . . .

:-) neil
Old 05-27-08, 11:10 AM
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kick some V8 ***, Howard

it should be close
Old 05-27-08, 11:37 AM
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i will have an inital idea as to timing early next week.

certain items need to be obtained such as the NTO3+M wheels, tires aren't a problem, a Feed type 2 wing which i will modify, a set of Tein coil overs w a particular spring rate.

i will not do the Shootout without equal setups. i did contact BHF (track) and they will be getting back to me.

hc
Old 05-27-08, 11:42 AM
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Howard, will you attempt to handicap the power of one of the cars if it turns out one has a massive dyno advantage? Or is that the point
Old 05-27-08, 12:34 PM
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Normally I would have my money on the LS2 due to the torque factor, but after seeing an nicely prepped 2nd gen beat a gt V8 supercar I may put my money on the Rotary, but who know till it happen....

Howard, this is a wonderfull thing you are doing....Can't wait for the results...
Old 05-27-08, 12:54 PM
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aaannnndddd....




GO!
Old 05-27-08, 01:17 PM
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fun fun fun!!!!
Old 05-27-08, 01:22 PM
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damian,

don't you have vids of a similar contest somewhere in your archives?
Old 05-27-08, 01:40 PM
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Originally Posted by M104-AMG
Supposedly, all things being equal, the car with more useable/tractable torque "under the curve" should win . . .
Not necessarily true. A lot depends on the circuit you're running on, and whether it matches up well with the gearing and power characteristics of the engine.

If the course is a circuit with lots of fast flowing turns with no slow sharp-angled bends where you would dip into the lower rpms, torque won't really help you much.

Power "under the curve" is more aptly applied to the street, where you spend more time accelerating from lower/midrange rpm.

Anyway, back on topic. To me, it will be far more interesting to see Howard's subjective comments on the handling of the two cars rather than just looking at the lap times to see which car "won".
Old 05-27-08, 02:38 PM
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^Yep it will be interesting to hear about the both the subjective comments as well as the overall results.

Would be cool if the event is being datalogged? That might be interesting to look at the differences that was as well.
Old 05-27-08, 03:06 PM
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i am hoping to have the MSD GPS datalogger onboard both cars. it will go a long way to explaining the lap times.
Old 05-28-08, 12:37 AM
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I was wondering if there are any plans of vidoes of this interesting event ala DAMIAN's excellent road race vidoes.

Maybe a car mag or Mazda might be willing to tape the event.

I can always dream.

If I wasn't retired and broke I'd love to drive out and be a spectator.

Ken
Old 05-28-08, 10:12 AM
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Originally Posted by Kento
Not necessarily true. A lot depends on the circuit you're running on, and whether it matches up well with the gearing and power characteristics of the engine.

If the course is a circuit with lots of fast flowing turns with no slow sharp-angled bends where you would dip into the lower rpms, torque won't really help you much.

Power "under the curve" is more aptly applied to the street, where you spend more time accelerating from lower/midrange rpm.

Anyway, back on topic. To me, it will be far more interesting to see Howard's subjective comments on the handling of the two cars rather than just looking at the lap times to see which car "won".
Anyone that has been watching the Rolex Grand Am series has seen this played out over the past 2 years with the Speed Source RX-8's and the Porsches, and the Pontiac GXPR this year.

The same is likely to hold true with comparison between a V8 RX7 and an Rotary RX7.
Old 05-28-08, 02:59 PM
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Originally Posted by a3dcadman
Ive always heard that torque wins races? Any enlightenment on that aspect would certainly be appreciated.

How is the comparative weight distribution between the 2 setups.

Should be a lot of fun regardless of outcome!

-chuck
Hey guys, thanks for your perspectives and information links regarding my questions.

I do have another question to toss out for you.

My Innovate systems datalogger only allows collection of datasets for 6 functions at a time; A/F ratio and five other systems of my choice.

Is the datalogger you mentioned all encompassing for all of the cars functions and systems or are there only specific data sets that can be created and monitored with it. If so, which systems would you monitor, ie. RPM, TPS, coolant temp, intake air temp etc.

-Chuck


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