What kinda WRHP???

[afinley11]

I was just wondering what kind of RWHP I should be running? I am pretty durn sure it is over 200 ( with out the N20 ) and no earthly clue what it is with the N20. Any thoughts, calculations, ect would be greatly apreciated!

Here is a MOD list:

ZEX nitrous kit (wet) 75 shot
MAC CAI with K&N filter
MAC shorty headers
True dual exhaust with cats eliminated
43% reduction underpulleys
NGK plugs
160 degree thermostat
MSD Plugs
3.73 rear end with trac loc
SCT tune (xcal box 93 race fule program)
SPEC stage II clutch
BBK short throw

An average 1/4 time is:

R/T .400
60 ft 2.248
330 ft 6.460
1/8 9.942
MPH 70.93
1000 12.905
1/4 15.381
MPH 90.30


My fasted MPH in the 1/4 is 92 flat and my best 60 ft is 2.2 flat. All these times are with out the N20 as I have not been able to get a good time with it on the track. Also I was wondering if I might be able squeeze a 14.9 out of my car N/A? I also plan on a little weight reduction by a rear seat delete kit, should that put me in the 14.9 range?


So three questions really then:

1. What is my estimated RWHP with out NOS?

2. What is my RWHP with NOS?

3. What kinda times should I be running with NOS?


Also any body care to take a stab at what kinda RWTQ I am at???

[MG Stang]

Couple things: Its RWHP an RWTQ, not wrhp/wrtq. N2O not NO2, and NOS is a brand name, so you may want to call it nitrous or n2o.

To answer your Q's:

1) I imagine about 180-185rwhp
2) 250-260 rwhp w/ the nitrous
3) Low 13's maybe even high 12's if you can drive and launch on slicks.

You prob got 200-210 rwtq.

[afinley11]

:doh: Whoops...fixed! Was pretty late when I did post :doh:

[1kwik6]

Off the bottle
18X RWHP
21X RWTQ

[slvr2000stang]

NA 180 - 185 rwhp 200 - 210 rwtq.

On a day with good atmospheric conditions Yes you can be in the 14's 14.8 or so

[Rookie]

This has been covered before - maybe you missed it. If you're running a 160 thermostat - you should change it to a 180. The reason: The ECU runs the car in an open-loop cycle until the engine temps reach about 170 degrees - at which point it goes into full closed loop operation.

This means the car isn't going to be running properly until it reaches 170ish and coud throw some MIL's at you.

(www.miracerros.com/mustang/thermo.html)

Now if you're SCT tuned - maybe that has something to do with it - but it's just an observation.

My guess on HP - 185/190ish...

[afinley11]

I did dynoed my car before my SCT tune and cutting my cats on my exhuast. The results were 179.96 RWHP and 196.86 RWTQ...I am thinking I should be a little more than that now.

The thermostat can be changed in a matter of a few minutes thanks for the heads up!

[_J_]

This has been covered before - maybe you missed it. If you're running a 160 thermostat - you should change it to a 180. The reason: The ECU runs the car in an open-loop cycle until the engine temps reach about 170 degrees - at which point it goes into full closed loop operation.

This means the car isn't going to be running properly until it reaches 170ish and coud throw some MIL's at you.

(www.miracerros.com/mustang/thermo.html)

Now if you're SCT tuned - maybe that has something to do with it - but it's just an observation.

My guess on HP - 185/190ish...


This statement only apply to his problem right, or in general???..

I have been running a 160* from 2004 with no problems at all.

I also think Justin is running a 160* TS too.

[taylor0987]

This has been covered before - maybe you missed it. If you're running a 160 thermostat - you should change it to a 180. The reason: The ECU runs the car in an open-loop cycle until the engine temps reach about 170 degrees - at which point it goes into full closed loop operation.

This means the car isn't going to be running properly until it reaches 170ish and coud throw some MIL's at you.

(www.miracerros.com/mustang/thermo.html)

Now if you're SCT tuned - maybe that has something to do with it - but it's just an observation.

My guess on HP - 185/190ish...


This statement only apply to his problem right, or in general???..

I have been running a 160* from 2004 with no problems at all.

I also think Justin is running a 160* TS too.
yeah I posted something about that before, and I was told that the ecu will go into closed loop regardless of temperature--it waits a certain period of time.

[mheath]

the fan kick on about 195 degrees so the car will still reach 190 or so even with a 160 thermostat....at least it does in my car

[afinley11]

not to be a jerk but this post wasn't really suposed to be about thermostats...just saying!

[_J_]

the fan kick on about 195 degrees so the car will still reach 190 or so even with a 160 thermostat....at least it does in my car

hmmm.. going 70+mph no need for the fan .. so a 160* will working
fine ones you are on the move, and 190 or so when you are at a stop/idle..

is that right?

[afinley11]

Can we please get back on the subject?

looking for help with my questions! :banghead:

[taylor0987]

there are some calculators on the web that you can put in your ET and weight and it will tell you HP. There are some others that take your trap speed as well, or instead of ET


There are alot of assumptions in the formulas used to make these calculators. Here are a couple examples using you+your car=3400 lbs,15.38 et, 92 MPH

http://www.fantasycars.com/derek/hp.html
Your mustang weighs about 3400 pounds and can complete a 1/4 mile in about 15.38 seconds. That means that you've got about 184.71 HP at the wheels, and about 240.13 HP at the flywheel

http://www.dsm.org/tools/calchp.htm
Using the ET method, I come up with 185 horsepower
Using the Speed method, I come up with 207 horsepower

[afinley11]

there are some calculators on the web that you can put in your ET and weight and it will tell you HP. There are some others that take your trap speed as well, or instead of ET


There are alot of assumptions in the formulas used to make these calculators. Here are a couple examples using you+your car=3400 lbs,15.38 et, 92 MPH

http://www.fantasycars.com/derek/hp.html



Your mustang weighs about 3400 pounds and can complete a 1/4 mile in about 15.38 seconds. That means that you've got about 184.71 HP at the wheels, and about 240.13 HP at the flywheel

http://www.dsm.org/tools/calchp.htm
Using the ET method, I come up with 185 horsepower
Using the Speed method, I come up with 207 horsepower


Thank you very much. I checked it out and it worked quiet well~! :cool:

[Nick D98]

hmmmm 300rwhp and 300rwtq? :D

[afinley11]

hmmmm 300rwhp and 300rwtq? :D

Yeah I wish man..I would be in heaven with those numbers lol :eek: