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Discussion Starter #1
Currently the has the following mods:
2000 MTX 2.5L Cougar:
msds headers/Y-pipe
SVT UIM
SVT LIM 19lb inj.
SVT TB
Pro-M MAF calibrated
Tru-bendz duals
ASP underdrive pulley
Derale Oil cooler
OIl and fuel pressure gauges
Weapon-r intake
apexi filter
taylor wires
motorcraft plugs

I bought it as a base model cougar. My top speed is around 115-120 and it shuts down.
1.) exactly what is shutting down? people say "rev limiter" but my rpms aren't that high
at 120 (certainly not 7,000rpms) so it would have to be a speed limiter correct?
2.) I'm going to be running 55-75 wet shot next year and using a S-AFC II would I yield
gains from an SVT ECU? And is it basically the same format (size/shape) as my ECU.

I know I won't be hitting 115 in the 1/4mile but I think I may be in the 100's
because as of now I'm at 92mph. I just want to make sure I don't hit a speed limiter
and that if I do hit it and the No2 is still being sprayed the car doesn't detonate.


Thanks
 

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the SVT ECU is in the same box as yours, its just programmed differently. It's also calibrated for your 19lb injectors, so you might net a horse or three. You also would nix the speed limiter. I don't know how the proflo will react with a new ECU though.
 

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If you added the SVT heads and Cams, then I'd say the SVT ECU would be an option, but honestly, your best bet is to get a dyno tuned chip.

Get thos AF readings read, and watch the power curve. Then have a chip burned to your specs, and get the most ouf your mods. Also, the speed governor can be removed to bring your top speed up to 140+ mph, which isn't needed, but whatever.

The basic cougars without the sport package came with a lower top speed due to the tires used in the non sport package being of a lower MPH rated tire.

Also with a chip, you don't need to worry about any of the PATS woes.

If you get a chip, get a flip chip...so you can choose between a N2O run and a NA run. Since in most NA applications ignition timing is advanced, and when running N20, you'll be looking to retard ignition timing, a single programmed chip will not be optimal.

Getting one program to match the N20 and one to match NA, you'll have a good setup...also you'll want to get a dyno tuned chip with the N2O running...

One small problem occurs if you choose to run from a 50 shot or so to a higher 100 shot, as you would want different tuning...however if you plan to keep it at a consistent 50 shot, then the programming will work for you.
 

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You can take your car up to the delership, and they can re-flash it to the SVT programming. When I dropped my SVT in, it came with the reurn-style ECU, which doesn't have the fuel module the Returnless systems do. So i had the dealership reflash it to a 2000 SVT...

All you need is the engineering code off of the SVT program you want. They'll plug your car (through the OBD-2) into their computer, when it comes up and says "This car is a 2000 Mercury Cougar V6, Correct? Say no, then in that next menu you can type in the engineering code, it goes through it's library of programs, then flashes your ECU to the SVT Code. Then it'll come up and say, This is a 2000 Contour HO, Correct? say Yes....
 
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why is it cutting off at 120???? with all those mods shouldnt it be a little faster?? i know I have had my 00 2.5 running right at 135 and still had left. I havent touched the engine yet either
 

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Originally posted by: St8LyRaVn
why is it cutting off at 120???? with all those mods shouldnt it be a little faster?? i know I have had my 00 2.5 running right at 135 and still had left. I havent touched the engine yet either
Sport package Cougars have no speed limiter.

Mike's car is a base model.

Even with the mods, his on-board computer still limits the speed to 120 or so.

That is the purpose of this thread - ECU upgrades.
 

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Discussion Starter #7
Thanks for all the info guys!
pgtatx
I've talked to Scott at Pro-M about getting a custom burned three stage chip
1. normal driving
2. 55 shot No2
3. 75 shot No2
It just seems a little too expensive for me.
But it also seems like the best way to go!

Rylee44
that's cool I've never heard of them doing that before.
thanks

St8LyRaVn
by the time you get to 135 I'm already done with the race. :biggrin: jk
but Bennett is 100% correct.
 

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This way here may be slightly more expensive but the options are endless.

Get an SVT XGT1 ECU. Basically a 2000 SVT ECU.

Put it in and have the dealer reflash the PATS system.

Go out and buy a Tweecer. Currently the Tweecer only works with the SVT ECU.

Go to a dyno shop and tune as many different programs you want saving each program to your laptop. When done, pick 3 programs (NA, 50shot, 75shot) and load them onto the chip. Leave the last entry of the chip to stock for the just-in-case.

Tweecer works like a flip chip but with 4 programs on it, and you can change and modify thoses programs to your liking. You can store as many programs as your hard drive can fit onto a laptop.

SVT ECU = 100 - 125$
Dealer PATS flash = 50-100$
Tweecer = 400$
Dyno Tune = ???

So yeah it's a little expensive but well worth it. Heck if you think you can do it yourself, and know what detonation sounds like and are very careful you could do most of the tuning yourself, and only need the dyno for a few runs, thus reducing dyno time and price.
 

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Discussion Starter #9
I've now come back to this.
AGAIN
I 've spoken with someone that has a similar set up and he has the S-AFCII
and he says it's not really gonna help me when I'm running nitrous and it costs
about 374.00 from summit racing.
So I don't want it if it's not really going to help.

SO I guess I'm going to be getting a 2000 SVT ECU, that will help the rich A/F ratio
that is going on with my car right?
Since I have the 19lb injectors

where would I buy and SVT ECU? fordpartsonline.com?

Thanks again
for the advice
 

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Mafterburner stage 2...

Will definitely be good for you...It won't get rid of you 120moh rev limiter, but it can control your N2O too. There is a modes specifically for returnless cars, and one for return (or both really), and the stage 2 has the built in switch that you can connect your N2O to. I am looking into it now.

IM or PM me about if you like.
 

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Originally posted by: Bennett9000
Originally posted by: St8LyRaVn why is it cutting off at 120???? with all those mods shouldnt it be a little faster?? i know I have had my 00 2.5 running right at 135 and still had left. I havent touched the engine yet either
Sport package Cougars have no speed limiter.
Not true... the speed limiter is just higher - I believe around 145.
 

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Discussion Starter #12
Thanks
you have PM
do they make it for our cars?
I don't really care about the speed limiter I just
want something worth while to tune my car with.

Sorry at the begining of this post I did care about the limiter
now I don't.

Thanks again


Gyger
 
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