Standing mile
We Fd guys like going fast around corners. Also the stock 5th gear ratio isn't necessarily the best for top end acceleration. A **** load of hp, great aero, and gearing is what you need. Hell I bet you Ernie T's Semi PP Fd would put down some great MPH if he had a Jspec tranny.
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
i am aware of only one FD that has run the standing mile. it had a 550 rwhp V8 in it along w a T56 and ran just under 200. the nose was up a bit thru the lights. if it had been down it probably would have made 200.
there is a guy who generally runs his GT35 FC and i believe he runs 170-180. pls correct me if you have the exact number...
the Texas Mile is at the top of my list after finishing my turbo(s) project. the mile was one of the reasons i switched to a T56.
it is very interesting to compare the FD and the ZO6. executive summary, aero is really important thru the lights and the FD has a significant advantage w re to frontal area and drag coeffficient.
howard
there is a guy who generally runs his GT35 FC and i believe he runs 170-180. pls correct me if you have the exact number...
the Texas Mile is at the top of my list after finishing my turbo(s) project. the mile was one of the reasons i switched to a T56.
it is very interesting to compare the FD and the ZO6. executive summary, aero is really important thru the lights and the FD has a significant advantage w re to frontal area and drag coeffficient.
howard
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Joined: Sep 2008
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From: Finland
i am aware of only one FD that has run the standing mile. it had a 550 rwhp V8 in it along w a T56 and ran just under 200. the nose was up a bit thru the lights. if it had been down it probably would have made 200.
there is a guy who generally runs his GT35 FC and i believe he runs 170-180. pls correct me if you have the exact number...
the Texas Mile is at the top of my list after finishing my turbo(s) project. the mile was one of the reasons i switched to a T56.
it is very interesting to compare the FD and the ZO6. executive summary, aero is really important thru the lights and the FD has a significant advantage w re to frontal area and drag coeffficient.
howard
there is a guy who generally runs his GT35 FC and i believe he runs 170-180. pls correct me if you have the exact number...
the Texas Mile is at the top of my list after finishing my turbo(s) project. the mile was one of the reasons i switched to a T56.
it is very interesting to compare the FD and the ZO6. executive summary, aero is really important thru the lights and the FD has a significant advantage w re to frontal area and drag coeffficient.
howard
http://www.speedconcept.fi/speedpart...lmoittautuneet
10-8-10-8
Joined: Jan 2012
Posts: 848
Likes: 12
From: Australia
I would have thought the diff gearing from an automatic car would be more suited to this?
(Many will tell you that the snout flange on auto to manual diffs is not interchangeable- if you have a lathe & mill, yes, it is
(Many will tell you that the snout flange on auto to manual diffs is not interchangeable- if you have a lathe & mill, yes, it is
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
"My first standing mile results...:
congratulations for getting out there
, it must have been quite a ride.
according to your tire diameter and gearing it looks like you were running 7360 rpm at 180 assuming no tire slip.
to run 200 (11% more speed) you have to either decrease frontal area by 11% or decrease drag coefficient by 11% { or decrease both for a total of 11%} or increase power by 36%.
drag HP needed to run a particular speed increases w the first power of frontal area and drag coefficient and the THIRD POWER of road speed...
180 X 180 X 180 = 5,864,400
200 X 200 X 200 = 8,000,000
8,000,000 / 5,864,400 = 1.36
1.364 X 517 = 703 hp to do 200
OTOH, if you could reduce frontal area/Drag Coefficient by 10% you need 630....
of course there are numerous other factors, one being your torque curve and it's relationship to transmission gearing. the primary reason i switched to the T56 w the 2.66 first is to get a closer spacing between the gears so i would be more to the right on the torque curve. i pick up around 600 rpm V the stock FD gearbox.
did you log your runs? running your motor thru 5 gears is no small feat. 5th gear is a major pull for the motor.
congratulations!
howard
congratulations for getting out there
, it must have been quite a ride.according to your tire diameter and gearing it looks like you were running 7360 rpm at 180 assuming no tire slip.
to run 200 (11% more speed) you have to either decrease frontal area by 11% or decrease drag coefficient by 11% { or decrease both for a total of 11%} or increase power by 36%.
drag HP needed to run a particular speed increases w the first power of frontal area and drag coefficient and the THIRD POWER of road speed...
180 X 180 X 180 = 5,864,400
200 X 200 X 200 = 8,000,000
8,000,000 / 5,864,400 = 1.36
1.364 X 517 = 703 hp to do 200
OTOH, if you could reduce frontal area/Drag Coefficient by 10% you need 630....
of course there are numerous other factors, one being your torque curve and it's relationship to transmission gearing. the primary reason i switched to the T56 w the 2.66 first is to get a closer spacing between the gears so i would be more to the right on the torque curve. i pick up around 600 rpm V the stock FD gearbox.
did you log your runs? running your motor thru 5 gears is no small feat. 5th gear is a major pull for the motor.
congratulations!
howard
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Joined: Sep 2008
Posts: 89
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From: Finland
here is my logs.
When i drive my standing mile there is hard side wind and i have to put up gas pedal couple time :-( you can see it my logs.
Thank you for calculations.
Besgt regards,
Postert
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Joined: Sep 2008
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From: Finland
Last edited by postert; Jul 10, 2012 at 01:57 AM.
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Joined: Sep 2008
Posts: 89
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From: Finland
New video
MR-Foto.fi
MR-Foto.fi
I have always wondered about standing mile times for fd's. I went to the texas mile years ago as a spectator and didn't see a single fd. but about 15 supras!!! only fd I could ever find was the one that's already been posted at 195mph with the ls motor.
So I guess the record 207mph. that's gonna be tough to beat!
So I guess the record 207mph. that's gonna be tough to beat!
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Joined: Sep 2008
Posts: 89
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From: Finland
Speedparty 2013 results, only one rx7.
results are km/h
http://www.speedconcept.fi/images/ti...3_tulokset.pdf
results are km/h
http://www.speedconcept.fi/images/ti...3_tulokset.pdf
Last edited by postert; Jul 8, 2013 at 05:58 AM.
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Joined: Sep 2011
Posts: 682
Likes: 4
From: Pawtucket, RI
I did 184.8mph at the Texas Mile last October. LS2 with 465rwhp.
With a 99+ lip and no rear spoiler, the rear was a little wandery above 165!
I might do it again sometime with front lip removed, a front undertray, rear diffuser, and possibly wheelcovers. No power mods planned, though, so I think 186 or so (300km/h) is about all she'd be good for, but that would be a cool target to hit
With a 99+ lip and no rear spoiler, the rear was a little wandery above 165!
I might do it again sometime with front lip removed, a front undertray, rear diffuser, and possibly wheelcovers. No power mods planned, though, so I think 186 or so (300km/h) is about all she'd be good for, but that would be a cool target to hit
Joined: Oct 2001
Posts: 6,279
Likes: 728
From: Florence, Alabama
registration for the Oct 25 Texas Mile opens (and probably closes) Aug 11. it is my intent to run the Oct event and it will require a successful dyno session before Aug 11. i have been wanting to run the event for a few years but XXX happens.
i plan to run half gas and half E85. Postert, what fuel were you running?
as far as the FD being a road course design.... absolutely. as one who has been a road racer all my life i couldn't agree more.
there are a couple of reasons i want to do 200 w the FD.
top of the list is to show that the 2 rotor motor can kick ***, the second is to demonstrate what superior aero is all about.
dyno results during the next 3 weeks will determine if i am on the entry list.
howard
i plan to run half gas and half E85. Postert, what fuel were you running?
as far as the FD being a road course design.... absolutely. as one who has been a road racer all my life i couldn't agree more.
there are a couple of reasons i want to do 200 w the FD.
top of the list is to show that the 2 rotor motor can kick ***, the second is to demonstrate what superior aero is all about.
dyno results during the next 3 weeks will determine if i am on the entry list.
howard
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Joined: Sep 2008
Posts: 89
Likes: 0
From: Finland
hi,
i run 98e5 with 50/50 water methanol injection.
my dyno result is only 530ps/ 20psi
Standing mile run boost is 23psi abaut 550-570ps
i change biger exhaust housing my old was 0.81 new is 1.15
my hi rpm power curve is better.
my front bumper is aftermarket model, i think at stock bumper aero is better.
my car is street car with mirrors etc.
underlay is flat, i install aluminium panel.
no rear wing.
188mph/ 7700rpm
i think i change my turbo (turbonetics t66) Borg Warner S400SX3 t4 Turbocharger With Attenuator "Race Cover" (74mm) 1.1 exhaust housing
Here is compressor map:
http://www.agpturbo.com/borg-warner-...ce-cover-74mm/
What you think this turbo, my power goal is 650-700ps?
good luck, i hope at everything go right and you can make 200mph
i run 98e5 with 50/50 water methanol injection.
my dyno result is only 530ps/ 20psi
Standing mile run boost is 23psi abaut 550-570ps
i change biger exhaust housing my old was 0.81 new is 1.15
my hi rpm power curve is better.
my front bumper is aftermarket model, i think at stock bumper aero is better.
my car is street car with mirrors etc.
underlay is flat, i install aluminium panel.
no rear wing.
188mph/ 7700rpm
i think i change my turbo (turbonetics t66) Borg Warner S400SX3 t4 Turbocharger With Attenuator "Race Cover" (74mm) 1.1 exhaust housing
Here is compressor map:
http://www.agpturbo.com/borg-warner-...ce-cover-74mm/
What you think this turbo, my power goal is 650-700ps?
good luck, i hope at everything go right and you can make 200mph
registration for the Oct 25 Texas Mile opens (and probably closes) Aug 11. it is my intent to run the Oct event and it will require a successful dyno session before Aug 11. i have been wanting to run the event for a few years but XXX happens.
i plan to run half gas and half E85. Postert, what fuel were you running?
as far as the FD being a road course design.... absolutely. as one who has been a road racer all my life i couldn't agree more.
there are a couple of reasons i want to do 200 w the FD.
top of the list is to show that the 2 rotor motor can kick ***, the second is to demonstrate what superior aero is all about.
dyno results during the next 3 weeks will determine if i am on the entry list.
howard
i plan to run half gas and half E85. Postert, what fuel were you running?
as far as the FD being a road course design.... absolutely. as one who has been a road racer all my life i couldn't agree more.
there are a couple of reasons i want to do 200 w the FD.
top of the list is to show that the 2 rotor motor can kick ***, the second is to demonstrate what superior aero is all about.
dyno results during the next 3 weeks will determine if i am on the entry list.
howard
Last edited by postert; Jul 14, 2013 at 11:18 AM.