American MotorSport chip results

[americanmotorsport.com]

For those of you who were wondering, Showhat9 dynoed his car stock, and then with my chip. He has both graphs, so I will let him post those, or if someone wants to host them, or wants to see them, I will be happy to e-mail a copy.

Now one graph was in MPH and the other in RPM...this is the way they were printed at the dyno for him. I went ahead and converted each MPH point to RPM, and then properly compared the graphs together, for all points they have in common (they were not started/ended at the same points). This is why you have such arbitrary RPM points. I also used excel to plot them together to show the gains, and he has that too, so he can post them, or I can e-mail it to someone.

His car is a 97 SHO, stock for the most part.

With all that extra torque, the car should be significantly faster. I also went ahead and took care of that TC issue when the AC cycles on/off that annoys you guys so much.

Here are the gains at the following RPM points.

RPM HP TQ
3995 -2 25
4230 2 27
4465 -5 21
4700 5 18
4935 9 16
5170 7 26
5405 2 25
5640 2 23
5875 7 20
6110 15 29
6345 17 20

If anyone has any questions or needs clarification on anything on the graphs, I'd be happy to clarify.

 

[Chris Benvie]

Wheres his post? I would like to see this.

 

[americanmotorsport.com]

I don't think he has posted these yet. Now someone who replied to the other thread said they wold post them if I sent them, but I do not think they are up yet. If you e-mail me, I can send you a copy of them if you want.

The results are pretty much as I posted, but if you need to see the graphs to see I am not making this up or what not, then I have them if you want them.

 

[Hack]

As I mentioned in the other thread, that looks pretty damn impressive to me. If I find myself in need of a chip, I will definately be giving you a call. A max gain of 17 whp and 29wtq for $350 (If memory serves?) has got to be one of the top bang-for-the-buck mods in the SHO world.

 

[AutoSHO]

Here are the gains at the following RPM points.

RPM HP TQ
3995 -2 25
4230 2 27
4465 -5 21
4700 5 18
4935 9 16
5170 7 26
5405 2 25
5640 2 23
5875 7 20
6110 15 29
6345 17 20

If anyone has any questions or needs clarification on anything on the graphs, I'd be happy to clarify.

How can you gain Torque and lose HP? Given the equation HP = TQ*RPM / 5252, if you increase torque at a given RPM, you increase horsepower as well.

 

[Chris Benvie]

Welp since you have the charts post em up.

 

[americanmotorsport.com]

How can you gain Torque and lose HP? Given the equation HP = TQ*RPM / 5252, if you increase torque at a given RPM, you increase horsepower as well.

The dyno's were done 2yrs apart. It is not uncommon to see plus or minus 5hp/5rwtq on different dyno's or different days. The only two places where it lost, it was 5 or less, so I'd say this is to be taken into account on the error. You can dyno the same cfar on seprate days and show stuffliek this...what you need to look at is teh oevrall trend. On avg, he gained liek 25ft/lbs everywhere and maybe gained a couple of HP at most places.

The SHO has mostly all the timing it needs form teh factory for max HP, but there are, as you can see, palces to improve the orque and to keep teh HP up for longer nthe hgih end.

Also, the actual points where this happend, is where the stock TC "flashes" as it locks. This skews the retulst athe this "peak". This is revised on my chip, so it would not show flash to such an extent. You can see what I mean in the graphs. I think this is another plausible explanation.

I have sent these to some one on this board to post Simply, those are the results...you can see them for yourself.

 

[AutoSHO]

I can understand Dyno variations, but what I'm saying is that it is impossible to gain torque and lose horsepower at the same RPM, because Horsepower is a Function of Torque @ RPM. If the RPM stays the same and the torque increases, the HP also increases.

For instance, lets use the 3995 RPM point:

Lets say (since I havent seen the chart yet) that the car was making 180 Ft Ibs of torque at that RPM before your chip.

HP = TQ(180)*RPM(3995) / 5252 = 136.9 HP

Now, lets add in the 25 Ft Ibs of torque gained:

HP = TQ(205)*RPM(3995) / 5252 = 155.9 HP

As you can see, there cannot be an improvement in TQ without a corresponding improvement in HP at the same RPM.

 

[americanmotorsport.com]

I understand what you are saying. However, this is what the graphs show...I just went by what they showed... They should be posted soon.

Now when you look at the graph...you san see it on the "before." It is at the peak, and the numbers at the top show "194tq" but when you run the numbers at this point, which is the 4465RPM point (95MPH) you get 165HP. But clearly, the graph shows there like 185Hp, so beats me...

The important thing is too look at the trend...I think the gains are impressive for just a chip, on a stock car. That is A LOT of torque to pickup, and the best thing is, he picked it up in the entire RPM band. These SHO's need justy that, torque. The graphs also show how HP is kept up longer at the higher RPMs..

 

[americanmotorsport.com]

Here is the b4:



here is the after:



Now one of these, as I said and as you can sse, was done im MPH and one was in RPM. I went ahead and converted the MPH to RPM by figuring out what RPM he would be at for each MPH point and graphed them together to see them side by side here:

 

[PROPHET]

A chip that works...awesome. :thumbs_u:

 

[stuntstud2]

so how much for the chip? is it like an LPM where you can change different functions whenever you want (with the right software of course)? do you only make them for gen 3 cars or do you make them for gen 1s and gen 2s as well? have you done any testing on gen 1s and gen2s?

 

[americanmotorsport.com]

I offer different ones. I offer single program chips as well as chips that can hold up to 4-programs (plus the stock one) that can be chosen at he flip of a ****, 'on the fly.' I also offer a handheld flasher that hols the stock plus up to 3 other programs, but the flasher does not work on the EEC-IV's. No software though.

Pricing starts at $325 for the one program chip, and starts at $375 for the 4-program chip. It depends on how many program you get and how different they are. The Multi position also has an anti-tehft "no run" setting.

I have worked on some older SHO's yes...I do not have any sheets with me though.

 

[Chris Benvie]

Or you can just go with a TWEECER for the same price?

 

[americanmotorsport.com]

You could. You may not get all the results though, since I can and do change many more things, and have perfected my programs over time. This also leads to better driveability, better automatic transmission performance, etc. I don't really charge for the chip, but rather for my time and experience.

 

[Chris Benvie]

So you're saying your chip is better than the twEECer?

 

[americanmotorsport.com]

You can draw your own conclusions...

 

[SHOTIME]

you two are like school girls trying to fight.

Ok, so of course alberto is better at tuning than some ******* with a tweecer,

and yes albertos software has more properties to change, but those little things do they add up to anything.

NOTHING is better than a dyno tune in person.

but if you need adjustabitily on the spot and over time. THATs what a tweecer is for.
and in the hands of a novice. (currently you chris) it could be really explosive.. litterally.

 

[Chris Benvie]

You can draw your own conclusions...

No you can answer my question. Wondering mines want to know

 

[PROPHET]

Lets keep this civil, any arguments should be handled on PM.

I also agree that the tweecer in the hands of the wrong person would do more harm than good.

There is enough market for both the tweecer and Alberto's chip.

For some the Tweecer will be more beneficial for others this chip will do.