So gents, I recently pulled a dyno on a Mustang Dynamometer. I hit 350hp and 342lbs with a 62mm pulley and CAI.

My question is who has experience with INmotion? What kind of gains can one expect? their website says 367 HP and 340 Torque but that's on a stock SRT-6.

What do their tunes cost and are they worth it?

Mike

 

Talk to Rob at Needswings.. He's been associated with them for years...

 

Will do. Thanks Doc.

 

Good luck....

 

From the looks of things I probably need some luck! I took the car to the dyno shop for a baseline, and then a custom tune. The mechanic couldn't unlock the ECU. He said he thinks it has a custom tune and the tuner locked it with their key, of which I have no idea who the tuner was because I had the car shipped to Arizona from Maryland. I'm happy with the numbers I put up but think there's a few more HP and a lot more torque to be had.

I called Eurocharged several times to ask about their tune and they may as well disconnect their number. Not much for answering or returning calls. Yesterday I called INmotion and.....same thing! Answering machine all day with no return call. So right ow my ECU is locked, and the two entities that sale the product to flash and re-tune don't respond!

 

Someone correct me if I am wrong but the 367 hp is not at the wheels, it's at the crank.
If you take the advertised HP as 330 then that is an increase of 37 HP, but if you believe that the actual HP was initially 350 (the same as the SLK32) then the increase is only 17 HP.
The advertised increase of the NA is somewhere the same, about 18 HP over the 218 stock HP, dyno pulls on NA's with the tune show less than 180 HP at the wheels, except in one case where about 190 HP was claimed.
As far as I know these ECU's can only be accessed by two US tuners, InMotion and EC.
Adding the SC pulley puts you above the stock figures I quote above.

 

Are you sure you hit 350 whp @ only 5500 rpm on a mustang dyno / stock tune? Looks like crank hp. No offense.

Steven

Berlin Germany

 

You put it more bluntly than I did, I was being subtle.
How crank HP is determined from a dyno with any accuracy seems impossible to me, too many variables. Maybe it is influenced by what the customer would like to hear.

 

Stephen, no offense taken. Here's the dyno results with date. AFRs were 12.2. I think the car has a custom tune already. As noted above, the ECU is locked and the dyno shop thinks its been custom tuned. We did a third gear pull and hit 410lbs torque. The results in the print out are a 4th gear pull at 5800rpms. I bought the car used with no history. I know the difference between crank and RWHP. I was right there watching the monitor, specifically AFRs. This isn't the first car I've modified or for that matter built, so nobody is going to tell me what I want hear, I'm going to get to the facts. The only way to get crank HP from a dyno is to estimate by taking into consideration manual/automatic, front weel/rear wheel drive, and adding approximately 15% to the rwhp dyno results. These are not formulated crank results. My question, if I could get through to INmotion, is if they can push them....(;

 

I wouldn`t change anything instead of moving the rev limiter to 6300. If she really puts out 350 whp @ aprx.5500 you might expect 380 - 390 whp @ 6300.

I am just kidding. I hope you see what i see.

It`s hard to believe.


Steven

Berlin Germany

 

I do Stephen. I'm convinced the car is custom tuned but I can't prove it. My dyno tuner has done the SRT6 before and the first thing he said is "its got a custom tune and they locked the ECU." I agree...I'm not going to flash the ECU. I'm afraid of losing my output.

 

So it is custom tuned and it was done for a pulley that was taken off before you aquired the car and by chance you put on a pulley that suited the tune. I guess that is possible.
The ECU has been locked so that nobody can change the tune. I doubt this.
In all my time on this forum I have never heard about this so you can see why I am questioning it.
I guess I am not to old to learn.

 

My latest N/A runs out like it is tuned.. I emailed Inmotion.. 50 bucks and send them the ECU to find out if it's been tuned by them.. Not happening by me.. LOL

EC shows no record on the vin..

 

The results of the dyno speak for themselves...oh wait! They secretly modified the dyno and fabricated the results just to make customers happy! This is one of the top shops in Tucson...they don't fabricate or falsify results. They had about $500,000 worth of cars in their shop. You don't get that business through lying and manipulating data.

Look guys, I don't really care about whose **** is bigger. The dyno results are obvious and it isn't the first dyno I've been to, and this is far from the first car I've worked with. You can challenge those results all you want, it really doesn't matter to me. I think it is very feasible that somebody bought a tune for the car in light of the fact the ECU is locked, a common practice by custom tuners.

I've read so many opinions on this forum that counter each other that it is ridiculous. Some swearing "you need new injectors and fuel pump with the 62mm pulley." Not true. Oh wait! Those AFRs must be fabricated too.....

The bottom line is the car pulled 350hp at 342lbs of torque at the rear wheels at 5800rpms. Just the statement "that must have been crank horsepower" diminishes any response you might have. What dyno shop calculates crank hp?!!!! Seriously....

So gents....have fun with your thoughts and opinions. I put paper up....anybody else got those dyno sheets that aren't from 10-years ago? Nope...exactly what I thought.

One individual who I respect on this forum looked at the sheet, the mods, and said "those numbers are right where they should be." That person was Les. So....I'm really cool with the dyno results. What I really set out to do in this forum is get through to Eurocharge and INmotion and see if the VIN matches any of their tunes.

As far as anything else....I could care less. Right now the car breaks the tires loose 1st through 3d at WOT so there's some HP hitting those wheels.

Oh...and for the "signature" everyone seems so inclined to put up (you know...the **** toss)

1. 1963 Chevy nova, 350 4-bolt mains, 202 heads, headers, running a shortened posi with 4:11 gears
2. 1968 Road Runner 383 magnum
3. 1973 Chevy Nova 400 small block, 4-bolt mains, 202 heads high rise intake, headers, 750 holley, turbo 400 with 2200 stall converter...you want torque? Pulled the front tires off of the ground
4. 1978 corvette 350 stroked to a 383, turbo 350

"This ain't my first rodeo" I built every one of those motors from the short block up.

So....you guys have all the answers and the dyno shops in your back yard...I'll defer to you because it's easier that way. As far as the story line noted above...it isn't one I conveyed at any point. However, I know MANY people who chip their cars before launching into other mods because they want a baseline to work from...as they say "Caso Cerrada."

 

Mrmiata...I'm with you. I'm sitting on this car and tune. If I do anything else it will be some exhaust work, but the results I have are good. I can duplicate them or exceed them. Looking at the dyno report, we backed out at 5800. I think if I took it to 6200 I could squeeze a few more horses out of it based on the horsepower curve. Torque flatlined.

 

I hear you, I had two cars at the same time with the same 3.2 litre engine, a '93 Chrysler Concorde and a '95 Chrysler LHS. Admitted the LHS was a bit heavier than the Concorde but the engine in the Concorde run rings around the one in the LHS.
Every engine has its quirks, all the right parts in an engine makes all the differance. The same thing applies to all things mechanical.

 

I've seen as much as 15% difference between engines that were supposed to be identical. When they ran the IROC series, they're biggest problem was getting all the identical engines putting out the same HP and torque.

 

Micheal, I think you see why now I don't do dyno's...except to tune. I can care less what the numbers end up, only that we are within parameters not to lean out. Your numbers are believable, but if it were tuned, I would expect it to have been tuned to a 65mm pulley or if luck would have it, a 185 crank pulley but doubtful. Most ran the 65... You don't need to touch the internals on the engine...nothing to gain there... Leave that hand built motor alone...lol

 

That's logical. The 62mm is newer. The dyno results are....dyno results! I kind of chuckled at the backlash. Hell....I didn't photo shop the results! I could go back and duplicate them again. Back in the day we just called it "finding the sweet spot" of the motor. I built a 383 stroker before that had $3000 in that was never the perfect combo. In contrast I built a small block 400 that I nailed. I think the post above regarding the IROC Zs says it best. Some motors are just stronger. I haven't ruled out a INmotion tune but I'm actually worried about leaving that sweet spot and trying to get back to it.

As always, thanks for the input Doc.

 

I would trade both mine for my old Z28 back and it was a 13 second car....lol. It's just s car thing. I like my cars, I like the mods I have done. I still run stock exhausts as like that 'sleeper' kind of thing. Keep trying Jerry at Eurocharged. They work other jobs, and do quite a bit of traveling. So just keep after them. They do know that part of the car better than anyone. You may need to a road trip to Houston...lol. I hope to have my rear end mod done by the end of month first of October. That may be my last mod....