Kracka's MAP EF2X turbo dyno results - 416WHP on pump gas!
Oct 20, 2011, 09:27 AM
#16
You can heat wrap the manifold and spray with sylicone to keep the heat in. Or get the ones that are already coated. I don't think youd have to worry about melting anything. Are there cams available with decent gains but arent a crazy duration/lsa to give smooth driving? I'd do some more research before giving up!! 
Oct 20, 2011, 09:49 AM
#18
You can heat wrap the manifold and spray with sylicone to keep the heat in. Or get the ones that are already coated. I don't think youd have to worry about melting anything. Are there cams available with decent gains but arent a crazy duration/lsa to give smooth driving? I'd do some more research before giving up!!
Oct 20, 2011, 11:44 AM
#20
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Talking with Calvin @ Cobb (tuner) yesterday he thinks right now my car's biggest restriction are the stock cams, after that would probably be the cast exhaust manifold. I don't like taking wild guesses, but he was talking in the area of 40WHP being possible if I did those two things, plus they would yield a much fatter mid-range too.
To be honest though, I don't have plans to do either. I like the reliability of the ported/coated cast manifold with a heatshield, plus I think the lower engine bay temps are a good thing for a DD street-car. I don't want to have to worry about melting my valve cover, sensors, wiring harnesses, etc. As far as the cams go, I want the car to remain as smooth and livable as possible since I do commute daily and sometimes get stuck in traffic. Cams and a lightweight flywheel really made my Evo IX a bear to drive in traffic and ruined the enjoyment of it for me.
To be honest though, I don't have plans to do either. I like the reliability of the ported/coated cast manifold with a heatshield, plus I think the lower engine bay temps are a good thing for a DD street-car. I don't want to have to worry about melting my valve cover, sensors, wiring harnesses, etc. As far as the cams go, I want the car to remain as smooth and livable as possible since I do commute daily and sometimes get stuck in traffic. Cams and a lightweight flywheel really made my Evo IX a bear to drive in traffic and ruined the enjoyment of it for me.
Oct 20, 2011, 06:54 PM
#23
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Nice numbers for the almost stock like spool...but not impressive enough for me to spend the $1,700 or what ever it is for this turbo... BUT, I am excited to see the EF3 numbers.
Last edited by Freebs; Oct 20, 2011 at 06:57 PM.
Oct 21, 2011, 07:32 AM
#24
This turbo basically has no downside..typically you are sacrificing spool and downlow torque for the gains up top, this you don't sacrifice anything at all really.
It's pretty much the way the turbo should be stock
Oct 21, 2011, 08:05 AM
#25
Meh. It's exactly what I wanted, like Murlo said, no real downside. It has the spool/response of stock, but the top-end pull of any other small stockframe upgrade. Win-win IMO. My biggest goals are keeping the car fun, smooth, and reliable.
Oct 21, 2011, 08:05 AM
#26
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Talking with Calvin @ Cobb (tuner) yesterday he thinks right now my car's biggest restriction are the stock cams, after that would probably be the cast exhaust manifold. I don't like taking wild guesses, but he was talking in the area of 40WHP being possible if I did those two things, plus they would yield a much fatter mid-range too.
This looks like a nice option especially considering the torque loss would only matter from a stop or slow roll once you're moving you'd never be that low in the rpm band to notice the loss.
I noticed that the power starts to drop off at 7k pretty significantly, is the turbo running out of steam at that boost/rpm combo or was it the cams holding it back and Calvin didn't want to rev it out any higher on the stock cams?
I need to talk to you about this setup for sure at the next meet dude. Lookin good!
Oct 21, 2011, 08:13 AM
#27
What did Calvin think this beast would put down on E-85?
This looks like a nice option especially considering the torque loss would only matter from a stop or slow roll once you're moving you'd never be that low in the rpm band to notice the loss.
I noticed that the power starts to drop off at 7k pretty significantly, is the turbo running out of steam at that boost/rpm combo or was it the cams holding it back and Calvin didn't want to rev it out any higher on the stock cams?
I need to talk to you about this setup for sure at the next meet dude. Lookin good!
This looks like a nice option especially considering the torque loss would only matter from a stop or slow roll once you're moving you'd never be that low in the rpm band to notice the loss.
I noticed that the power starts to drop off at 7k pretty significantly, is the turbo running out of steam at that boost/rpm combo or was it the cams holding it back and Calvin didn't want to rev it out any higher on the stock cams?
I need to talk to you about this setup for sure at the next meet dude. Lookin good!
I didn't ask Calvin about 7k+ RPM, but considering the boost is still holding steady up there I'm going to guess it's not the turbo running out of steam. I'm sure it has more to do with my stock cams/springs and Calvin not pushing my setup to the absolute limit so things stay nice and reliable on the street.
