DSMTalk Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum banner
Cancel
Create thread New Garage Forums

dsm link question

Jump to Latest
1 - 9 of 9 Posts
B

brenden3010

· Registered
Joined
·
3 Posts
Discussion starter · #1 ·
I have a 92 tsi, and I have a few questions about dsm link.

First off, Im debating over a built 2 liter, but the problem with that, is that if I can safely take the engine over 8k, dsm link will NOT be able to tune that high, correct? And if I'm correct, then I'd be limited in the turbos i can choose as I wont be able to wind them out the way they should be. I dont want to spool at 6k and shift at 8k. In this situation dsm link will not be the godsend many claim it to be, right?


Second, if I decided to get a 2.3 liter with a moderate 7500 limit, will I need tuning to allow the engine to work properly on a stock turbo? Basically can I drive the car without it breaking the engine? If its too dangerous to drive the car stock with a stroker, can dsm link straighten things out? I know it can handle injectors, but can it take care of the extra displacement issue? I dont even know if the ecu will even know the difference or if I need tuning period with a 2.3 liter on the stock turbo.
 
#2 ·
brenden3010 said:
I have a 92 tsi, and I have a few questions about dsm link.

First off, Im debating over a built 2 liter, but the problem with that, is that if I can safely take the engine over 8k, dsm link will NOT be able to tune that high, correct? And if I'm correct, then I'd be limited in the turbos i can choose as I wont be able to wind them out the way they should be. I dont want to spool at 6k and shift at 8k. In this situation dsm link will not be the godsend many claim it to be, right?


Second, if I decided to get a 2.3 liter with a moderate 7500 limit, will I need tuning to allow the engine to work properly on a stock turbo? Basically can I drive the car without it breaking the engine? If its too dangerous to drive the car stock with a stroker, can dsm link straighten things out? I know it can handle injectors, but can it take care of the extra displacement issue? I dont even know if the ecu will even know the difference or if I need tuning period with a 2.3 liter on the stock turbo.
Click to expand...
dsmlink does not care or know displacement.. it knows airflow and rpm, doesnt matter what liter engine you are running
 
#8 ·
The extra displacement can be compensated for by tweaking the ve adjustments in dsmlink. As for not tuning over 8k rpms....the ecu uses the same fuel settings from 8k on up, so it using the same settings all the way up doesn't matter. All the way up to 8k the ecu is tuning for a different target afr at different rpm ranges, but once it reaches 8k the settings are level. You could still tweak above 8k using airflow sliders though as they are based on airflow and not on rpms. Add airflow make it richer, subtract to make it leaner.
 
#9 ·
TinSecondRice said:
The extra displacement can be compensated for by tweaking the ve adjustments in dsmlink. As for not tuning over 8k rpms....the ecu uses the same fuel settings from 8k on up, so it using the same settings all the way up doesn't matter. All the way up to 8k the ecu is tuning for a different target afr at different rpm ranges, but once it reaches 8k the settings are level. You could still tweak above 8k using airflow sliders though as they are based on airflow and not on rpms. Add airflow make it richer, subtract to make it leaner.
Click to expand...
This is true. In a lot of the rally cars I have worked with in the past, we saturated the maf sensor long before we were finished pulling air in. Under the rules at that point in time we couldn't upgrade the maf sensor so we had to tune the cars rich at the point just before we saturated the maf. This allowed us to make the power we needed to stay competitive. Domestic drag racers do it all the time. It is NOT the best thing to do as you are simply guessing, BUT, most of the time it works out.
 
Save
Reply Quote Like Like
1 - 9 of 9 Posts
About this Discussion
8 Replies
7 Participants
Last post:
KingGalantVr4
DSMTalk Forums: Mitsubishi Eclipse, Plymouth Laser, and Eagle Talon Forum
posts
2.3M
members
104K
Since
2000
A forum community dedicated to Mitsubishi Eclipse, Plymouth Laser and Eagle Talon owners and enthusiasts. Come join the discussion about performance, turbos, builds, modifications, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
General DSM Tech and Tuning Help! Tech Newbie Questions Forum Body Tech and Appearance Electronics Tech