SST Questions
SST may overheat in traffic jams or slow downhill drives
Twin clutch is disconnected in D when you either step on the brakes or the accelerator at low speed
Twin clutch is SEMI SLIPPED when you're not stepping on brakes (to simulate automatic creep) or accelerator
Prolonged semi slipped TCSST in traffic jams will cause overheat of the gearbox, requiring you to stop one side and shutdown the engine ..
Mitsubishi suggests to go neutral in such circumstances or step on either accelerator or brakes and don't allow creep. They will not be fixing this issue..
This is extracted from the Japanese forums ..
Sticky this if you like MODs .. coz I'm sure alot of guys will be crying foul when you get the MRs on the roads ..
Twin clutch is disconnected in D when you either step on the brakes or the accelerator at low speed
Twin clutch is SEMI SLIPPED when you're not stepping on brakes (to simulate automatic creep) or accelerator
Prolonged semi slipped TCSST in traffic jams will cause overheat of the gearbox, requiring you to stop one side and shutdown the engine ..
Mitsubishi suggests to go neutral in such circumstances or step on either accelerator or brakes and don't allow creep. They will not be fixing this issue..
This is extracted from the Japanese forums ..
Sticky this if you like MODs .. coz I'm sure alot of guys will be crying foul when you get the MRs on the roads ..
Sorry I came across defensive as I really am not.
I will see if there is a cooler on my car.
If the manufacturer let the clutch in 1/2 way why would they do it ? It again would not make sense. All so you may want to up date your profile as it still says you drive a 7 cheers
I will see if there is a cooler on my car.
If the manufacturer let the clutch in 1/2 way why would they do it ? It again would not make sense. All so you may want to up date your profile as it still says you drive a 7 cheers
Its something for those people that are used to automatics .. they are used to the creep thats inherent in a normal torque converter automatic .. Mitsubishi just ported that 'familiar feel' across .. Humans are creatures of habit .. you change something they are used to .. I think they go into system shock

Originally Posted by desparado-c
Seems to me bottom line is don't drive your SST like it's a pure automatic. Drive it like an enthusiast who knows it bad for a clutch to be slipped for prolonged periods of time. In stop-and-go traffic, use the brake, use the gas, use the brake, use the gas, and don't plan on using clutch slip to pull you forward in traffic.
Just for interest sake and certainly not seeking conflict I checked my car and the oil cooler located at the fount is an engine oil cooler. Went to the Mitsubishi dealer scanned the parts diagrams no external transmission cooler for the SST.
If you read the attached quote from zorca It refers to the simulated creep from stationary or low speed and as I said did it for one hour no problems
SST may overheat in traffic jams or slow downhill drives
Twin clutch is disconnected in D when you either step on the brakes or the accelerator at low speed
Twin clutch is SEMI SLIPPED when you're not stepping on brakes (to simulate automatic creep) or accelerator
Prolonged semi slipped TCSST in traffic jams will cause overheat of the gearbox, requiring you to stop one side and shutdown the engine ..
Mitsubishi suggests to go neutral in such circumstances or step on either accelerator or brakes and don't allow creep. They will not be fixing this issue..
Twin clutch is disconnected in D when you either step on the brakes or the accelerator at low speed
Twin clutch is SEMI SLIPPED when you're not stepping on brakes (to simulate automatic creep) or accelerator
Prolonged semi slipped TCSST in traffic jams will cause overheat of the gearbox, requiring you to stop one side and shutdown the engine ..
Mitsubishi suggests to go neutral in such circumstances or step on either accelerator or brakes and don't allow creep. They will not be fixing this issue..
Pardon my n00bness, but does this whole semi-slipped issue only apply to low speed ? what about in highway? like if I accelerate to 70mph and then let go the gas and let it cruise a bit in D, is the clutch disconnected? This is quite common (gas, cruise a bit, gas bring up to 70...rise and repeat when there is light traffic) when driving an auto.
With 99% certainty I would say low speed only I.E 10kph and under It certainly feels like the clutch is engaged above these speeds from the drivers seat and I can not think of a reason to slip the clutch. One of the major advantages a manual had over an auto in the past has been on deceleration the manufacturer can cut fuel supply to the engine there by increasing fuel economy and when you decelerate the intercalated fuel use drops to 0 so my guess is yes the clutch is fully engaged. But I can not be 100% certain
With 99% certainty I would say low speed only I.E 10kph and under It certainly feels like the clutch is engaged above these speeds from the drivers seat and I can not think of a reason to slip the clutch. One of the major advantages a manual had over an auto in the past has been on deceleration the manufacturer can cut fuel supply to the engine there by increasing fuel economy and when you decelerate the intercalated fuel use drops to 0 so my guess is yes the clutch is fully engaged. But I can not be 100% certain
Just like everyone else has said on this thread, please keep us updated on your experience with power mods on your car. We are all very interested in knowing how mitsu's automated manual will handle more power. Thank you for the info.
Thats really weird, my car is a JDM and came with atf and engine oil coolers, one on each side!
Just for interest sake and certainly not seeking conflict I checked my car and the oil cooler located at the fount is an engine oil cooler. Went to the Mitsubishi dealer scanned the parts diagrams no external transmission cooler for the SST.
If you read the attached quote from zorca It refers to the simulated creep from stationary or low speed and as I said did it for one hour no problems
If you read the attached quote from zorca It refers to the simulated creep from stationary or low speed and as I said did it for one hour no problems
Munch Munch that is me eating humble pie. yes the is one on mine does have one. It is behind the inter cooler exit pipe. Will not comment on overheating problem again unless it is to say you where right as I am parked on site of road ;-)
Last edited by NZEvox; Jun 5, 2008 at 09:37 PM. Reason: I was wrong
Ok update on mods. I have ordered the Ralliart pipe kit and an HKS exhaust including Hi flow Cat . The pipe kit will be here end of July and the exhaust august. with these two items and the ralliart inlet pipe I will have the hardware to go to 360 HP. WRCDevelopments think the re flash for Fq360 SST will be ready then so I will get the parts fitted and head down for a re-flash.
As for the current 330. It is fantastic. Much smoother and more power through the entire rev range. Fuel economy is about the same and not worse. Maybe the shift on light acceleration is a bit sharper (more like spot mode). No error codes.As it requires no bolton parts it would be hard for the manufacturer to easily detect and a good first step until the warranty period is over
I would recommend the ECUtek Flash to anybody with an SST.
As for the current 330. It is fantastic. Much smoother and more power through the entire rev range. Fuel economy is about the same and not worse. Maybe the shift on light acceleration is a bit sharper (more like spot mode). No error codes.As it requires no bolton parts it would be hard for the manufacturer to easily detect and a good first step until the warranty period is over
I would recommend the ECUtek Flash to anybody with an SST.
Last edited by NZEvox; Jun 5, 2008 at 09:26 PM.
I saw the same thing but when I talked to WRC developments they said that they had modified an sst with the 360 Hp maps and parts it was fine on the dyno but it was putting up error codes in drive testing. Check earlier in this thread
Last edited by NZEvox; Jun 5, 2008 at 09:27 PM.
That's cool! As long as the error codes aren't something like "SS-T MELTDOWN" I am sure they will find away around them.
It is pretty bad from what they say it goes in to a limp mode and only gives you first gear and bugger all throttle.Sorry do not want to say but not wellington.
Last edited by NZEvox; Jun 5, 2008 at 09:42 PM.
lastly, did WRC Developments develop the flash for the current FQ-360? what i'm getting at is will there be an official FQ-360 SST in the future?
Yes I plan to have a FQ-360 flash in the future. They expect to have a reliable flash ready to release by august. There is huge pressure from Mitisubishi UK to get a FQ-360 SST developed A.S.A.P they have a test mule running the re flashed ecu and the listed mods producing 360 hp but until it has done a few thousand test Kms then they will not release it in case they get more error codes. It looks like the the fq series in the UK is a joint development by HKS, ECUTeck and Mitsubishi.
Last edited by NZEvox; Jun 5, 2008 at 10:21 PM.


