2012 power variance?
#1
2012 power variance?
So I have tuned 3 2012s (2 MR and 1 GSR) in the last 2 days and noticed that they seem to be down about 15-20whp from where an equivalent 2008, 10, or 11 would be with the same mods.
I have been racking my brain trying to think of what is different. The MIVEC maps are a departure for Mitsu from what they have been doing, it looks like they are really trying to make some fast spool but arent so hot after that. I really though they looked very similar to a Ralliart. Not saying the cams are smaller but something isnt adding up there in comparison to the other year Xs.
Sample runs-
MR
I would have strongly thought that all the mods (TBE, 4" intercooler, intake, etc.) should do what I normally see on 2010 and 2011 MRs which is high 320s at that boost level. Correction factor vs uncorrected has only varied +/- 1hp in the last 2 days so air is about perfect here right now.
GSR-
Again the same mods as above and I have done 355-360whp on 3 cars in the last month with the same mods.
These are the first of the 2012s I have had on the dyno so my question is what is different? What has changed that makes these cars down on power? No boost leaks, did timing sweeps on all of them, maxed the boost, lowered the boost, etc. They just are tracking about 15whp less on average than a 2011 down.
Aaron
I have been racking my brain trying to think of what is different. The MIVEC maps are a departure for Mitsu from what they have been doing, it looks like they are really trying to make some fast spool but arent so hot after that. I really though they looked very similar to a Ralliart. Not saying the cams are smaller but something isnt adding up there in comparison to the other year Xs.
Sample runs-
MR
I would have strongly thought that all the mods (TBE, 4" intercooler, intake, etc.) should do what I normally see on 2010 and 2011 MRs which is high 320s at that boost level. Correction factor vs uncorrected has only varied +/- 1hp in the last 2 days so air is about perfect here right now.
GSR-
Again the same mods as above and I have done 355-360whp on 3 cars in the last month with the same mods.
These are the first of the 2012s I have had on the dyno so my question is what is different? What has changed that makes these cars down on power? No boost leaks, did timing sweeps on all of them, maxed the boost, lowered the boost, etc. They just are tracking about 15whp less on average than a 2011 down.
Aaron
Last edited by JohnBradley; May 18, 2012 at 04:25 PM.
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#8
I used the stock MIVEC, then switched to my MIVEC map and normal ROM. I did a 4* timing sweep from my normal basemap, played with fuel, then did a MIVEC sweep as well. The fact is these cars are down on power without apparent reason other than they are 2012s. Maybe its a glitch and a case of my 10-80-10 rule getting me without enough cars to make an accurate judgement. I posted this more to get other 2012 vs all other year dyno sheets to see if its something obvious or just a case of these 2 are lower percentile cars.
I will have to switch computers to show the variation of the 4 years in MIVEC maps and comparison to an RA. Other than the MIVEC the map is identical to any of the other years of X though as far as how it looks.
I will have to switch computers to show the variation of the 4 years in MIVEC maps and comparison to an RA. Other than the MIVEC the map is identical to any of the other years of X though as far as how it looks.
Last edited by JohnBradley; May 19, 2012 at 08:47 PM.
#14
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I really though they looked very similar to a Ralliart. Not saying the cams are smaller but something isnt adding up there in comparison to the other year Xs.