Does my 1/4 mile time and Hp seem right???

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Does my 1/4 mile time and Hp seem right???

Postby Sleeka_89 » Thu Aug 10, 2006 3:37 pm

Hey all...
Pretty much i have 210fwhp and i ran a 13.0 at 178km/hr (2.2 60foot), and it got me thinking does that seem right??? Most of my mates at mid to high 200hp range to get that sort of time(not alltracs). I'm not trying to sound like i'm the best driver or anything but i was thinking is that power level to low for that time???
Pretty much stock ST185 halfcut with ct20b at 17psi, FMIC, full exhaust and mircotech ecu in a ST162 celica fwd, basically thats it. The dyno i went on is meant to be the harshest dyno in my city but i was always dissapointed with the hp level, but i knew the cars was fairly quick hence the time. So my question is how much power do you guys need to crack a flat 13s pass (i know you weigh more than me)? For my mods does the power seem right??

Thanks
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Postby Mafix » Thu Aug 10, 2006 4:04 pm

are you sure that's your power output? with those mods i suspect that it's higher than 210.
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Postby Conan » Thu Aug 10, 2006 6:15 pm

The ET is too good for 210whp, you should be in the 250-280 range ;)
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Postby TheAutoholic » Thu Aug 10, 2006 6:22 pm

Remember you weigh quite a bit less, and you have less drive train powerloss...
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Postby Razzo » Thu Aug 10, 2006 9:40 pm

TheAutoholic wrote:Remember you weigh quite a bit less, and you have less drive train powerloss...


Lol well with 210fwhp to hit 13s you must be in the weight of around 2400

i would guess if your at 17psi with the ct20 you should be around 260-300fwhp (with the supporting mods) its definatlly a good turbo to hit low 13s in, i'm sure you can see high 12's with a better clutch/tires
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Postby TheAutoholic » Thu Aug 10, 2006 9:45 pm

Well he is a half trac, and I didn't say he wasn't getting an underestimate in whp.
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Postby omgitsroy326 » Thu Aug 10, 2006 10:45 pm

ST185 halfcut with ct20b at 17psi, FMIC, full exhaust
how is that 210 fwhp? doen't make any sense... your time with mods sounds right, but not your whp.. but awsome time~
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Postby Gary » Fri Aug 11, 2006 1:23 am

Trap speed indicates the power output of the car.

Horsepower = Weight x [trap speed/234]^3

Horsepower in hp
Weight in lbs (including driver + gas)
Trap speed in mph

For example:
Pat's 131 mph run with 3400 lbs total weight indicates 596 hp.
210 fwhp dosn't seem right consider your car probably weighs more than 2500 lbs with driver.
You should have more than that.
May be around 250 or more @ the wheels.
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Postby Sleeka_89 » Sun Aug 13, 2006 8:13 am

Thanks for the replies, i might go to another place and get it re-dynoed. I always thought the hp seemed abit low cause a mate of mine has a s14a 200SX, 278rwhp and theres like 60kg difference in our cars and we're neck on neck in a rolla run. Also i'm always reading about mr2s with ct20 getting 260-300rwhp with supporting mods so i was kinda hoping to be in that range aswell.

Should be an easy high 12 pass if i ever manage to get slicks or an lsd box, fragging one wheel isnt fun :doh:

Thanks again :D
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Postby Sleeka_89 » Sun Aug 13, 2006 8:21 am

Gary wrote:Trap speed indicates the power output of the car.

Horsepower = Weight x [trap speed/234]^3

Horsepower in hp
Weight in lbs (including driver + gas)
Trap speed in mph

For example:
Pat's 131 mph run with 3400 lbs total weight indicates 596 hp.
210 fwhp dosn't seem right consider your car probably weighs more than 2500 lbs with driver.
You should have more than that.
May be around 250 or more @ the wheels.


So....
Weight = 1350kg fuel and me (1350*0.45359237 = 2976 lbs)
Trap Speed = 178km/hr * .6 = 106.8mph

Horsepower = Weight x [trap speed/234]^3
= 2976 x [106.8/234]^3
= 282.94 fwhp (approx)


That sounds a bit better hahaha
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Postby Sleeka_89 » Mon Aug 14, 2006 8:31 am

Got it re-dynoed today... 267fwhp :D
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Postby omgitsroy326 » Sat Aug 19, 2006 7:36 am

that's more like it~
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Postby theUNYTEDone » Sat Aug 19, 2006 7:59 am

Gary wrote:Trap speed indicates the power output of the car.

Horsepower = Weight x [trap speed/234]^3

Horsepower in hp
Weight in lbs (including driver + gas)
Trap speed in mph

For example:
Pat's 131 mph run with 3400 lbs total weight indicates 596 hp.
210 fwhp dosn't seem right consider your car probably weighs more than 2500 lbs with driver.
You should have more than that.
May be around 250 or more @ the wheels.


you never cease to amaze me, gary.
too bad we've no track down here anymore.
there's always rumor that it'll open back up though.
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Postby SeanGTS » Mon Aug 21, 2006 5:15 pm

What tires are you running? Open differential? What transmission? What was your 60 foot time?
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Postby Sleeka_89 » Tue Aug 22, 2006 2:23 am

SeanGTS wrote:What tires are you running? Open differential? What transmission? What was your 60 foot time?

When that time was done i was running a sv21 camry gearbox which is an open differential so it frags one wheel. The tyres were 205/50 r15's naykangs (cheap crap) and i managed to get a 2.2s 60 foot time. The track is closed for winter here and in a month or two im gonna go down again because i got some 17inch rims now with 215/45 kumo tyres which should help me crack a high 12 second pass... hopefully :D
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