Map built evo 8 2.4l fp black e85
Finally found some time to test some theories, this is a simple swap to a Hallman MBC. There was no appreciable peak HP gain (we didn't take the time to perfectly match the boost levels) but spool was significantly improved upon as well as whp and torque at lower RPM levels.
Last edited by ChrisCarey; Mar 1, 2011 at 11:47 AM.
Now for the fun part, most people looking at a list of mods wouldn't assume there would be a significant difference between a standard aftermarket O2 housing / downpipe combination and our O2 Eliminator...they would be wrong 
+23.55whp and +41.17ft/lbs is pretty significant in my book! Spool improved even moreso as well.
+23.55whp and +41.17ft/lbs is pretty significant in my book! Spool improved even moreso as well.
Last edited by ChrisCarey; Mar 1, 2011 at 11:38 AM.
Now for the fun part, most people looking at a list of mods wouldn't assume there would be a significant difference between a stand aftermarket O2 housing / downpipe combination and our O2 Eliminator...they would be wrong +23.55whp and +41.17ft/lbs is pretty significant in my book! Spool improved even moreso as well.
+23.55whp and +41.17ft/lbs is pretty significant in my book! Spool improved even moreso as well.WOW! nice that clears things up thanks! That not only clears things up for me but says alot about your product. You can use that on your site. Thanks for taken the Extra time to do that. What can I do to make the curve more linear instead of going up and dipping and going down.? Also I was curious on the correction on the Pulls?
Last edited by navysandsquid; Mar 1, 2011 at 11:39 AM.
It's still a bit wavy but the big dip at 6500 all but disappeared. Couple that with an 8whp peak gain and I'm pretty happy with the results considering it was aftermarket vs aftermarket.
STD correction, smoothing 5.
Last edited by ChrisCarey; Mar 1, 2011 at 11:49 AM.
Overall gains from swapping the following:
Forge MBC (Soft Spring) to Hallman Pro MBC
MAP Standard O2 Housing / Unknown 3" Downpipe to MAP 3" O2 Eliminator
Injen LICP to MAP LICP
+32.21whp
+44.2 ft/lbs
Forge MBC (Soft Spring) to Hallman Pro MBC
MAP Standard O2 Housing / Unknown 3" Downpipe to MAP 3" O2 Eliminator
Injen LICP to MAP LICP
+32.21whp
+44.2 ft/lbs
Last edited by ChrisCarey; Mar 1, 2011 at 11:54 AM.
Three things just don't add up here....
FP Black, Kelford 272 and peak power at 5600rpm. I think there has to be something holding the car back and the first thing I was thinking about was valve float, but what do I know.
How does the graph look uncorrected or at a more reasonable correction factor?
If you guys think it is the TB and IM holding the car back, why was the LICP, MBC and downpipe swapped instead? Not trying to sound hostile in any manner, just some constructive criticism.
-Justin
FP Black, Kelford 272 and peak power at 5600rpm. I think there has to be something holding the car back and the first thing I was thinking about was valve float, but what do I know.
How does the graph look uncorrected or at a more reasonable correction factor?
If you guys think it is the TB and IM holding the car back, why was the LICP, MBC and downpipe swapped instead? Not trying to sound hostile in any manner, just some constructive criticism.
-Justin
They are currently swapping manifold and throttle body the exhaust manifold
very impressive gains just from switching a few basic mods. good job MAP.
as a few others mentioned...looks like there may be some valve float issues up top that may need to be addressed though.
