What RWH/RWT to expect for my 03 Cobra?

terrydf · Jan 12, 2004

I'm wondering what rwh/rwt on my 03 cobra is before mods. I have a K&N FIPK and a Magnaflow catback sitting in boxes waiting to go on. I'm considering waiting until I've done a baseline dyno - cause I'm curious about what gains I'll get from these mods. Any idea what my before and after should turn out to be?

Friedchicken · Jan 13, 2004

You should be putting down corrected 370 rwhp stock and then 400-405 after those mods.

Uncle Meat · Jan 13, 2004

Friedchicken said:
You should be putting down corrected 370 rwhp stock and then 400-405 after those mods.

I agree with Friedchicken on the estimated numbers. Don't do what I did, get a baseline dyno pull done while you are stock. If you can afford to get a pull done between each major modification that would be cool too! Always nice to know where your A/F is after each change and how much HP/TQ you picked up.

U.M.

flyonthewall · Jan 13, 2004

Do Baseline Stock first then you can really tell what the mods do for your motor. I would mod one at a time to tell how much you gain from each one. Which Dyno you chose stay with that one and operator to stay consistent. Dynos Mustangg-type and DynoJet. Most prefer DynoJet. Different parts of the country get you different numbers. I would not be concerned with what numbers that you pull (should pull three times at least) except the Air to Fuel mix is very important. Just remember you are just setting a Baseline for your mods and it is only one moment in time on that given day. Best of luck.

Uncle Meat · Jan 13, 2004

flyonthewall said:
Do Baseline Stock first then you can really tell what the mods do for your engine. I would mod one at a time to tell how much you gain from each one. Which Dyno you chose stay with that one and operator to stay consistent. Dynos Mustang and DynoJet. Most prefer DynoJet. Different parts of the country get you different numbers. I would not be concerned with what number you pull (should pull three times at least) except the Air to Fuel mix. Just remember you are just setting a Baseline for your mods and it is only one moment in time on that given day. Best of luck.

What the HELL is that linked CRAP in your message man!? At first I thought it was something you were doing.... but then I did some looking around and it seems it's happening to many people all over the board! Certain key words throughout different posts are hyperlinked to commercial websites. Is this Stangnets new revenue gimmick?

U.M.

flyonthewall · Jan 13, 2004

Uncle Meat said:
What the HELL is that linked CRAP in your message man!? At first I thought it was something you were doing.... but then I did some looking around and it seems it's happening to many people all over the board! Certain key words throughout different posts are hyperlinked to commercial websites. Is this Stangnets new revenue gimmick?

U.M.

Not me, I just typed the words, I thought it was strange. WTF
Let's see engine, motor, horsepower, transmission, rearend, mustang,etc.

Uncle Meat · Jan 14, 2004

flyonthewall said:
Not me, I just typed the words, I thought it was strange. WTF
Let's see engine, motor, horsepower, transmission, rearend, mustang,etc.

It doesn't appear to happen instantly... Takes a few hours before the words convert over to links. When I posted my reply to you yesterday, the words "engine" and "Mustang" in my REPLY were not hyperlinked, but they are now!

U.M.

COBRA90GT · Jan 14, 2004

Uncle Meat said:
... Is this Stangnets new revenue gimmick?...

Sorta. Mike Raburn mentioned that it is one of SN's new advertising features; "embedded advertising," if you will - in order to bring in funds and keep the site operational & whatnot...

Vic_Ferrari · Jan 15, 2004

Look soon in Mustang enthusiast Magazine.
My 03 is literally broken down mod by mod, run by run.
I starter with 360 RWHP and 333 TQ
K&N added another 20 HP and 15-18 ft lbs.
K&N with Superchips _Rs file made 400 HP at the tire
K&N with catback and 2.8" upper pulley and Superchips HP-4 program made over 430 HP at the tire
Same modifications with superchps custom tune made 462 HP and 488 FT Lbs AT THE TIRE.
It's a demon of a daily driver...... =o)

We're doing kook longtubes and h-pipe this week with another tune....shooting for 500HP at the tire with an equal amount of torque.

We may add a 2 LB lower pulley and a new heat exchange to break the 500 mark =o)

Make sure ALL runs are done is threes for each mod.
Also make sure the car is driven at LEAST several miles on the dyno after tuning or parts changes to allow adaptive learn.
If the 1st run in each three is higher than the other two, THROW IT OUT and average the other two.
It is utterly important that the percieved IAT on the dyno is ACCURATE and CONSISTENT with all runs.
I can "make" 30 H by running the car with colder oil temp or moving the IAT probe on the dyno to a "cozy" warm location......this will caust the SAE correction to "pretend" you have more HP.....
People do it all the time and this is why most dyno shops don't have a clue...
Then comes the dynojet factor.....they usually read high.
After using this Superflow dyno I'm spoiled by it's accuracy....I don't like using a dynojet unless it's all thats available.

Vic

flyonthewall · Jan 15, 2004

Vic_Ferrari said:
Look soon in Mustang enthusiast Magazine.
My 03 is literally broken down mod by mod, run by run.
I starter with 360 RWHP and 333 TQ
K&N added another 20 HP and 15-18 ft lbs.
K&N with Superchips _Rs file made 400 HP at the tire
K&N with catback and 2.8" upper pulley and Superchips HP-4 program made over 430 HP at the tire
Same modifications with superchps custom tune made 462 HP and 488 FT Lbs AT THE TIRE.
It's a demon of a daily driver...... =o)

We're doing kook longtubes and h-pipe this week with another tune....shooting for 500HP at the tire with an equal amount of torque.

We may add a 2 LB lower pulley and a new heat exchange to break the 500 mark =o)

Make sure ALL runs are done is threes for each mod.
Also make sure the car is driven at LEAST several miles on the dyno after tuning or parts changes to allow adaptive learn.
If the 1st run in each three is higher than the other two, THROW IT OUT and average the other two.
It is utterly important that the percieved IAT on the dyno is ACCURATE and CONSISTENT with all runs.
I can "make" 30 H by running the car with colder oil temp or moving the IAT probe on the dyno to a "cozy" warm location......this will caust the SAE correction to "pretend" you have more HP.....
People do it all the time and this is why most dyno shops don't have a clue...
Then comes the dynojet factor.....they usually read high.
After using this Superflow dyno I'm spoiled by it's accuracy....I don't like using a dynojet unless it's all thats available.

Vic

All that you said is so very true. I have seen unscrupulous tuners sell unrealistic "tunes". It is enlighting to hear from one who states this and is willing to speak out. Thanks for stepping up to the plate.
A tuner with balls is nice to hear, their words, ring true.

terrydf · Jan 16, 2004

Bone stock engine results: 366RWH/367RWT. (Dynojet, SAE). Magnaflow catback and K&N CAI going on tomorrow morning

92gt5.0 · Jan 17, 2004

terrydf said:
Bone stock engine results: 366RWH/367RWT. (Dynojet, SAE). Magnaflow catback and K&N CAI going on tomorrow morning

Not bad stock #s Let us know the new numbers with intake and exhaust.

What RWH/RWT to expect for my 03 Cobra?

terrydf

New Member

Friedchicken

Uncle Meat

Banned

flyonthewall

New Member

Uncle Meat

Banned

flyonthewall

New Member

Uncle Meat

Banned

COBRA90GT

Mustang Master

Vic_Ferrari

New Member

flyonthewall

New Member

terrydf

New Member

92gt5.0

Similar threads

What RWH/RWT to expect for my 03 Cobra?

New Member

Banned

New Member

Banned

New Member

Banned

Mustang Master

New Member

New Member

New Member

Similar threads

Privacy & Transparency

Privacy & Transparency