dsm link capabilities

[compression]

I was looking on the 1/4 mile list finding people running sub 10.50 passes and making 600+ horsepower and trying to look at their mods , most of them run aem ems , im starting to think that the dsmlink is either not capable of a good tune 600+ horsepower or hard to tune at that hp, is there anybody out there making that kind of power or running those times with dsmlink? i like ems but for the price i believe dsmlink can do anything it can. chime in if you know anything about dsmlink or ems or have any expierence , thanks in advance tuners

 

[DGajre777]

It is probably more of a choice issue than DSMLink not being able to handle high horsepower cars.

"- How fast have you gone with DSMLink?

Our own shop car has run a mild 11.3. But several of our users are running 10s, 9s and even 8s, the fastest of which is François Villeneuve and Serge Turcotte running 8.7s with traps over 160mph! The fact that they're doing this through an automatic transmission really illustrates the power they're putting down."

http://www.dsmlink.com/faq.html#times

 

[Street Surgeon]

The dsmlink is limited by whatever is reading the airflow, if it's a 2G mas, 3G, GM MAF, whatever.

In the end I believe it's just a personal choice to switch to a standalone instead of using an eprom ecu, GM MAF, DSMlink, etc to tune. There are also other perks of going standalone such as not having to burn a chip for different injectors, full sequential injection etc. DSMlink is great, but IMO when you get to higher hp levels a standalone makes better sense.

 

[stockfornow]

I have been wondering the same question, I guess this would be the right thread to post my question... Not to jack this thread or anything:


Ok, would it be possible to tune 700-750 AWHP, with 1600cc with either 110 race gas or E85(less likely).

Thanks.

 

[DGajre777]

The dsmlink is limited by whatever is reading the airflow, if it's a 2G mas, 3G, GM MAF, whatever.

Not necessarily. You can use the FAKE MAP and USE MAP fuctions.

Page 19. http://www.dsmlink.com/DSMLinkV2.5 User's Guide.pdf

"The Fake MAF and Use MAP options are both closely related. When Fake MAF is selected, the signal coming from the real MAF is ignored above the entered Switch over point. Instead, a MAF signal is "simulated" by extrapolating from the conditions observed at the Switch over point.

If Use MAP is selected, DSMLink will factor in the value it sees on the MDP sensor line as though it were a manifold pressure (boost) signal. On 1Gs, this feature uses the EGR temp input. This assumes, of course, that you have fed an appropriate pressure signal into the appropriate input line to the ECU. If Use Map is not selected, DSMLink just
uses a hard-coded value for pressure under the assumption that your boost is holding pretty steady beyond the Switch over point.

Once the Switch over point is exceeded, the MAF sensor is completely ignored until the calculated airflow drops well below the clamp point. So as your revs and estimated airflow continue to increase, DSMLink will continue to ignore the MAF sensor. Once you've let up on the gas, the calculated airflow will drop below the clamp point and DSMLink will switch back to using the real MAF signal."

 

[compression]

well i have the 3.5" gm mafs with the maft of course , i dont like tuning of the maft but i do like it for the mafs relocation and its flow rate compared to 1g or 2g mafs.. so you believe dsmlink can tune a set of 1600 cc injectors easily?, and also what CAN ems do that dsmlink can , my friend has a 2g spyder awd making i believe 500+hp on ems and he let me look at the program it just confuses the hell out of me with 3d graphs , dsmlink imo is more user friendly because im not going to bring a personal tuner to the track to tune my ems , so its not really money being an issue although it did hurt my friends pocket for a 2k$ ems and 600 in tuning to get a BASE tune where i can get a dsmlink for 600 and wideband with a pocketlogger and tune my heart out. so i guess my question is, what is the limit of dsmlink need it be airflow, fuel compensation for injectors as large as 1600cc if i decide to go that large. or anything for that matter.

 

[DGajre777]

so i guess my question is, what is the limit of dsmlink need it be airflow, fuel compensation for injectors as large as 1600cc if i decide to go that large. or anything for that matter.

That is probably a very good question for the guys at ECM Tuning (DSMLink). Send them an e-mail at [email protected], I got a response to my question about logging fuel pressure in less than an hour.

 

[2gGSX]

well i have the 3.5" gm mafs with the maft of course , i dont like tuning of the maft but i do like it for the mafs relocation and its flow rate compared to 1g or 2g mafs.. so you believe dsmlink can tune a set of 1600 cc injectors easily?, and also what CAN ems do that dsmlink can , my friend has a 2g spyder awd making i believe 500+hp on ems and he let me look at the program it just confuses the hell out of me with 3d graphs , dsmlink imo is more user friendly because im not going to bring a personal tuner to the track to tune my ems , so its not really money being an issue although it did hurt my friends pocket for a 2k$ ems and 600 in tuning to get a BASE tune where i can get a dsmlink for 600 and wideband with a pocketlogger and tune my heart out. so i guess my question is, what is the limit of dsmlink need it be airflow, fuel compensation for injectors as large as 1600cc if i decide to go that large. or anything for that matter.

You can use the 1600cc injectors, however most seem to have problems with them on a daily driver.

An EMS can literally control every aspect of your car. Main things that come to mind are more inputs, speed density, multiple sets of injectors (almost necessary if you plan to run straight alcohol, methanol, etc), and AFR tracking.

The main limitations IMO are lack of speed density, logging on 1g's is limited by their slow data-transfer rate, and...well that's about it. I don't really know what else most people need.

If your end goal is 600 whp, then the two main limitations you need to look at in terms of what an EMS can handle are fuel delivery and airflow. As stated above, with the MAFT setup (which can actually be calibrated to work correctly), you should be good for ~4500 hz of airflow. Above that, you can use Fake MAF if necessary. On the fuel side of things, 1600cc injectors are honestly overkill for gasoline--10.71 lbs/min of fuel, needing 384 lph of fuel pump at 100% IDC? For a 600 whp goal the FIC 1150 or even the 1000cc injectors should be more than enough fuel, and those are actually known to work fine for a daily driver.

 

[compression]

well that was my next question but i was contemplating asking that in the tuning forums, so nothing totally mandatory is needed from ems, ok that seems to answer my question, and the maft pro is speed density correct? so if i really wanted a speed density i could go with the matf pro , thats if i encounter major problems with the maft.

 

[compression]

if anybody else has any experience or know anything about this feel free to chime in.

 

[bmwisthekey]

yeah seriously friend , u can get away with using alot smaller injectors than 1600cc, i know you are upgrading your fuel lines with -AN, for feed and return. your gonna have a big pump etc.. seems like the norm around the dsmlink community or tuning community for that matter that really big injectors you will have more driveability issues, unless your running ems etc..
if high hp numbers can be achieved using smaller injectors, go with some smaller sizes as were stated earlier by other members.

 

[BoostFrenzy]

Another of DSMLinks downfalls is in its tuning by RPM ranges. After a certain RPM, you cant tune it. It will just mimic what your last 1k rpm tune was for the rest of your range until you shift.

This shouldn't be too big of a problem on a stroker, but if you are going for a high rev 2.0 then it will become a problem. Just a "what if" case for others reading.

 

[Street Surgeon]

The program it just confuses the hell out of me with 3d graphs , dsmlink imo is more user friendly because im not going to bring a personal tuner to the track to tune my ems , so its not really money being an issue although it did hurt my friends pocket for a 2k$ ems and 600 in tuning to get a BASE tune

What EMS is he running? A new AEM is about 1500, a used one can be had for around 1k or so?

IMO, if you're shooting for some serious hp a standalone is a no brainer. You can dick around with clamping an input signal and generating fake ones while running other non-stock equipment through their translators etc. No one's arguing saying that you can't! BUT, with a standalone there's no gimmicks, and you take a ton of the guesswork out of the configuration. Especially with an AEM since everyone's done them. Plug it in, learn the software, get a wideband and you're good to go. If you're not willing to take the time to learn the software that's not the standalone's fault! A full standalone can do everything a DSMlink can and much more. Want to run full sequential injection, adjust fuel PER cylinder etc, not on a DSMlink.

The DSMlink is a great system for 99% of DSMers modifying their cars, you just have to figure out if you're in that other 1%

Also, if you're still considering DSMlink I noticed you have a 1G. Just get an Ostrich emulator and run TunerPro R/T. You get waaaaaaaaaaaay more functionality than DSMlink and all you pay for is the emulator cable!

 

[compression]

yea , i don't know what that is, do you have a link or something that i can read up on it with? if im not mistaken after you buy the ems , don't you have to buy all the sensors and everything separate? its very expensive, and thats interesting about the max rpm mimicing your lower rpms, i plan to rev to 9-9500 rpms would that be an issue? and dont get me wrong i like the idea of ems but i was just trying to be reasonable (not exactly cheap) and put most of my money into air and fuel delivery, and if dsmlink can handle what i want to through at it then i will go that direction, but if i buy it and have problems ill most likely go to ems, and i will try the 1000 injectors and see where that takes me, thanks everybody for the information, again if anybody else feels like spreading information just chime in.

 

[compression]

i think the universal ems if that sounds right.

 

[biglady112]

I ran 14.3@136 in my mirage on street tires. This was with E85 and 1600's. I can't even describe all the reasons you should run dsmlink. You are not capped by airflow as stated. There are tools in the program to tune around the limits if you are there. I was seeing 4300+hz on my GM MAF and did not need to use the extra tools in the program for a safe and consistent tune. There are countless guys making well over 700whp. I would say upwards of 15 different folks making over 650whp. Maybe even 20. There are 3-5 people at or over 800whp. For any type of racing you desire, dsmlink has had success running it.

Pm me your phone number and we can discuss it more. I am one of the more successful and creative users out there. I have tuned or helped tune 43 different cars so far. And I assure you each is fast in its own right.

This list is JUST FOR 2007. Keep in mind, the creator just moved recently, and there is 4 or 5 other folks that have broken into the single digits using dsmlink since the last update. Some guys were knocking on the door of 8 second passes in 5 speed cars. And 3 were knocking on 160mph with 5 speed transmissions as well.

Steven

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[compression]

ok i did decide to go with dsmlink, i have already found and purchased a decent laptop from eBay to tune with, seems like every used laptop on there the battery was bad in . do they make car chargers for the hp laptops or am i better off getting a power inverter with a normal charger?

 

[bmwisthekey]

they make car chargers for hp laptops, just depends on the price between car charger or battery inverter i guess.

 

[2gGSX]

Alternatively, a replacement battery may be cheaper than both and give you a laptop that can actually run off the battery.

 

[BoostFrenzy]

and thats interesting about the max rpm mimicing your lower rpms, i plan to rev to 9-9500 rpms would that be an issue?

No no no, it's nothing like that. It will mimic what it's last RPM range is. So I think it is 8k where it stops. So anything above that #, it will only take your 8k settings. So if you rev to 9, you can't tune that RPM range so it will just apply your 8k range all the way till you shift.

 

[compression]

No no no, it's nothing like that. It will mimic what it's last RPM range is. So I think it is 8k where it stops. So anything above that #, it will only take your 8k settings. So if you rev to 9, you can't tune that RPM range so it will just apply your 8k range all the way till you shift.

yea i know that what i mean sorry for the misunderstanding.

 

[unlmtdndeavor]

woooot...#17 on the list my first time out..hahah. hopefully i can move up that list next weekend at BOTI. i'm gunning for that #10 spot