How much whp is enough for 11.5?! Assuming streetlegal car with AC and stereo (and Toyo RA1 are legal tires remember 
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1/4 mile times with mods
- Thread starter Batmobl
- Start date
How much whp is enough for 11.5?! Assuming streetlegal car with AC and stereo (and Toyo RA1 are legal tires remember
I would guess between 350 and 400 rwhp. So many other things have to do with your 1/4 mile time so it's hard to peg it to just hp. My car has A/C and Stereo and runs 12.60's with 280 rwhp. I'm guessing with 350 I could be in the low 11's.
I think you need to be close to 400 RWHP to get into mid 11's with the NSX. I think its a lot harder to get into 11's than people think. But really, I don't pay much attention to E.T's, the real indicator of power is your MPH. Traction and launch capability has a lot to do with ET's. And unless you are up for abusing the crap out of your NSX's, you will not get into 11's easily. You will need cheater slicks and that will put some real pressure on the drivertrain. If I go to the track, I am going to launch off the line like I'm driving miss daisy... and just see what my MPH will be.
Twin Turbo with 150 shot Nitrous on street tires 10.56, just turbo's on street tires 11.20
ccathey,
that is a VERY impressive 60' time. i'm assuming you are running on DR's. but even more impressive is that you did not snap an axle.
congrats!
that is a VERY impressive 60' time. i'm assuming you are running on DR's. but even more impressive is that you did not snap an axle.
congrats!
I took my 2005 100% stock NSX to www.beaversprings.com about 3 weeks ago and got some not so great results.
I only ran 3 runs but they were 13.5X @106 to a worst of 13.7X @ 105mph.
the best run was powershifting (gas to the floor while shifting) and traction control off (obviously). I think all of my 60' times were under 2.1 so it launched well.
Not so great considering my Stock Evo ran 13.4 and I didn't even powershift it.
I only ran 3 runs but they were 13.5X @106 to a worst of 13.7X @ 105mph.
the best run was powershifting (gas to the floor while shifting) and traction control off (obviously). I think all of my 60' times were under 2.1 so it launched well.
Not so great considering my Stock Evo ran 13.4 and I didn't even powershift it.
I'm surprised your times were what they were. When I had an E46 M3, my best trap was 104 and I ran 13.4s with a 60' of around 2.
Time for a CTSC Scot if you keep your car past the lease. I remember when you had an 03 cobra and then your Evo. The CTSC by no means will get you faster than a modded cobra but you'll be in the mid 12s easily (I got a 12.65 on my first try and then I burnt my OEM clutch).
That's b/c you are an amateur.:biggrin: :biggrin:
Seriously though that time is a bit dissappointing. I would think low 13's are doable with a stock NA2.
Hey Matt. i didn't recognize your name over here until i looked at your sig.
I was not real impressed with my times... there was a slight headwind but i had generally been able to beat magazine times with my cars.... o well.
Sounds like turbo's or supercharger is the way to go..... did you keep the bottomend stock with your CTSC?
I was not real impressed with my times... there was a slight headwind but i had generally been able to beat magazine times with my cars.... o well.
Sounds like turbo's or supercharger is the way to go..... did you keep the bottomend stock with your CTSC?
Ya, i felt like a tard... 
with 2.0 60' times I have no idea why the car wasn't in the low 13's.... I shifted as fast as I could and didn't smack the rev limiter, etc..... o well...
On the last run I did a burnout to heat up the tires, popped it about 5500rpm and burned through the clutch...doh... still got a 2.0 60' foot time.
with 2.0 60' times I have no idea why the car wasn't in the low 13's.... I shifted as fast as I could and didn't smack the rev limiter, etc..... o well...
On the last run I did a burnout to heat up the tires, popped it about 5500rpm and burned through the clutch...doh... still got a 2.0 60' foot time.
Scot
I used to go by dvdoughboy (still do on s2ki) and that's probably why you didn't recognize me.
I am still on the stock bottom end and am running with just the CTSC slapped on. No other additions. The autorotor kit makes more than the 6lb of boost than they say. Most of us see 7-8 lbs regularly. I haven't heard any pinging so I feel ok.
I'm planning on going back to the drag strip just to practice again and to see if I can get low 12s. I know this car isn't made for that purpose but it's fun to see.
I used to go by dvdoughboy (still do on s2ki) and that's probably why you didn't recognize me.
I am still on the stock bottom end and am running with just the CTSC slapped on. No other additions. The autorotor kit makes more than the 6lb of boost than they say. Most of us see 7-8 lbs regularly. I haven't heard any pinging so I feel ok.
I'm planning on going back to the drag strip just to practice again and to see if I can get low 12s. I know this car isn't made for that purpose but it's fun to see.
Just ran a 12.9 at 108 at Bandimere Speedway near Denver last night...
60-ft time was 1.9.
Best before that was a 13.5 at 104 also at 1.9 60 foot... then I discovered that my Comptech high-boost pulley was actually a stock pulley for a 3.2 liter engine (about 3 5/8 inches). Changed it out for the real high-boost pulley (about 3 1/2 inches) and my torque jumped from 220 to 248, with max torque coming at about 4,800 rpm instead of at 5,200. The car pulls really strong... the power comes on much sooner in the rpm range. For example... before, max torque of 220 came at 5,200, and now I hit 220 ft lbs at 2,800 rpm. Horsepower went from 312 to 322 at the wheels... not as dramatic a boost, but the torque feels fabulous. Max boost went from about 5.4 pounds at 5,100 rpm to about 7.2 lbs at 4,400.
Altitude here is a big factor on quarter-mile times.. Bandimere is at 5,500 feet. For comparison, I have seen a stock 2002 3.2 liter NSX run at 14.0 at 104 here.. so my first time into the 12s felt especially great!
Suggestion for those with Comptech high boost... double check your pulley size.. there may be more (cheap) power available for you!
60-ft time was 1.9.
Best before that was a 13.5 at 104 also at 1.9 60 foot... then I discovered that my Comptech high-boost pulley was actually a stock pulley for a 3.2 liter engine (about 3 5/8 inches). Changed it out for the real high-boost pulley (about 3 1/2 inches) and my torque jumped from 220 to 248, with max torque coming at about 4,800 rpm instead of at 5,200. The car pulls really strong... the power comes on much sooner in the rpm range. For example... before, max torque of 220 came at 5,200, and now I hit 220 ft lbs at 2,800 rpm. Horsepower went from 312 to 322 at the wheels... not as dramatic a boost, but the torque feels fabulous. Max boost went from about 5.4 pounds at 5,100 rpm to about 7.2 lbs at 4,400.
Altitude here is a big factor on quarter-mile times.. Bandimere is at 5,500 feet. For comparison, I have seen a stock 2002 3.2 liter NSX run at 14.0 at 104 here.. so my first time into the 12s felt especially great!
Suggestion for those with Comptech high boost... double check your pulley size.. there may be more (cheap) power available for you!
For 5500ft above sea leval, the correction factor is below:
Take 12.9 x .9315 =12.01635sec is the equivalent time at sea level, not to mention the addtional power at lower attitude. I see high 11s in you.
You had excellent but not great 60ft time. I see 1.6sec in your set up.
Thanks for the conversion info, NSXsupra!
Can anyone imagine a care model better than this?
Mine is:
-- A daily driver -- reliable!
-- A show car -- i am showing at the Exotic Car Show and Concours D'Elegance in Colorado on Sunday http://www.cpco.org/concours/index.htm ... where I was second in class last year
-- A track car... i do 1/4 mile just to quantify mods... i mostly do club track events and am really working on high-performance driving... been to track events at the Pikes Peak International Speedway (now closed), Las Vegas International Speedway, the Spring Mountain Motorsports Ranch just to mention a few... bringing me together with some great car enthusiasts and allowing me to connect with some really wonderful folks..
Does it get any better than this?
Some questions:
I run on Toyo T1R tires... 1.9 60-foot times seem to be the best I can do right now. I launch at 3,200 rpm.... above that, my trap speed goes up, but my 60-foot and full 1/4 times go down because the tires spin. There is a very delicate relationship here between rpm and launch and times and trap speeds.
I'm looking for some advice on strategies... i have played with launches from 3,000 rpm to 4,500 rpm... i have a natural tendency to give it a lot of gas as i let the clutch out, which can also affect wheel spin. Should I not do that? What other things can I play with to improve 60-foot time? Tire pressure? My clutch seems excellent.. it's an ACT racing clutch from SOS and have never felt it slip.
Thanks!
Nsxsupra-
Where did you get that number for the correction time? Are there different numbers for different altitude levels? That’s pretty cool!!
Where did you get that number for the correction time? Are there different numbers for different altitude levels? That’s pretty cool!!
The number are from NHRA.
http://www.carcraft.com/techarticles/116_0306_nhra_drag_racing/
http://www.gnttype.org/techarea/misc/altitude.html
NHRA Correction Factors
The Accompanying Charts Are What The NHRA Uses To Convert E.T. And MPH
The accompanying charts are what the NHRA uses to convert e.t. and mph for varying track elevations. To convert your numbers to sea level equivalents, simply multiply the applicable factor by your e.t. and mph. For example, to convert a 12.00 at 112 mph pass at LACR with a 2,700 feet elevation, simply multiply 12.00 by 0.9692 and the 112 mph by 1.0339. The final conversion tells us that our high elevation pass would equate to an 11.63 at 115.80 mph pass at sea level.
Lowering tire pressure helps traction. Every car is a little bit different, you just need to find what works the best for. Your 60ft time is already good enough to call it a day.
I just got home from the stripp and here is the result...
NSX-T 1996 with Taitec headers and exhaust.. the rest is stock..
60-Fot: 2,022
1/8 speed: 132 km/h (132 kilometer/hour = 82.020 mile/hour (mph) )
1/8 time: 8,8
1/4 speed: 173,8 km/h ( 173.8 kilometer/hour = 107.9 mile/hour (mph) )
1/4 tid: 13,54
It seems to be a ok time for a almost stock NSX..
more info about the ca: www.garaget.org/smacke
NSX-T 1996 with Taitec headers and exhaust.. the rest is stock..
60-Fot: 2,022
1/8 speed: 132 km/h (132 kilometer/hour = 82.020 mile/hour (mph) )
1/8 time: 8,8
1/4 speed: 173,8 km/h ( 173.8 kilometer/hour = 107.9 mile/hour (mph) )
1/4 tid: 13,54
It seems to be a ok time for a almost stock NSX..
more info about the ca: www.garaget.org/smacke
I just got home from the stripp and here is the result...
NSX-T 1996 with Taitec headers and exhaust.. the rest is stock..
60-Fot: 2,022
1/8 speed: 132 km/h (132 kilometer/hour = 82.020 mile/hour (mph) )
1/8 time: 8,8
1/4 speed: 173,8 km/h ( 173.8 kilometer/hour = 107.9 mile/hour (mph) )
1/4 tid: 13,54
It seems to be a ok time for a almost stock NSX..
more info about the ca: www.garaget.org/smacke
Was this with the Beer or the kid?
Haha... no beer, no kid... but the trunk was (is) filed wit al sort of "junk"...
Some Toda spec A cams for my super seven, some clothes, a bag with sportdrinks and some food, 50 meters of the polices "blockingtape", mu ABUS steringwheellocker", all the tools with air compressor and some other junk..
And to top it all of, I have a nice eye infection ..
http://trampebil.se/slask/bilder/2007-07-08-eye-infektion-01.JPG
http://trampebil.se/slask/bilder/2007-07-08-eye-infektion-02.JPG
Good thing I didn't have to make any turns.. 
Some Toda spec A cams for my super seven, some clothes, a bag with sportdrinks and some food, 50 meters of the polices "blockingtape", mu ABUS steringwheellocker", all the tools with air compressor and some other junk..
And to top it all of, I have a nice eye infection ..
http://trampebil.se/slask/bilder/2007-07-08-eye-infektion-01.JPG
http://trampebil.se/slask/bilder/2007-07-08-eye-infektion-02.JPG
Good thing I didn't have to make any turns..
