MHI turbo upgrade is on!
#1
Instructor
Thread Starter
MHI turbo upgrade is on!
Took about 4 hours -
still have a lot of tinkering to do
havent run it hard yet- gonna have Derek (IMW) tune it cause this is above my pay grade as far as tuning goes
pretty straightforward install though-
Still waiting for the prl titanium inlet so for now the stock plastic intake is on it
still have a lot of tinkering to do
havent run it hard yet- gonna have Derek (IMW) tune it cause this is above my pay grade as far as tuning goes
pretty straightforward install though-
Still waiting for the prl titanium inlet so for now the stock plastic intake is on it
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SpaceBot (03-30-2021)
#3
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#5
Instructor
Link to buy: https://www.full-race.com/store/hond...turbo-upgrade/
Link to manufacturers page: https://www.mitsubishi-turbo.com/pro...-turbocharger/
Link to manufacturers page: https://www.mitsubishi-turbo.com/pro...-turbocharger/
#6
Link to buy: https://www.full-race.com/store/hond...turbo-upgrade/
Link to manufacturers page: https://www.mitsubishi-turbo.com/pro...-turbocharger/
Link to manufacturers page: https://www.mitsubishi-turbo.com/pro...-turbocharger/
Thanks, I thought this was a new product specifically for the RDX platform. It would be very interesting to see what the limitations are.
#7
Instructor
Thread Starter
It’s an upgrade from the type r turbo direct from Mitsubishi-
major difference in size of compressor/turbine and inducer/exducer
seems to spool fairly quickly although def not like stock rdx mini turbo -
After I took the stock turbo off and compared them you would be amazed at how small the stock turbo turbine wheel is it’s only about the size of a half dollar which is amazing on how to get that much horsepower out of that tiny little thing
The new MHI turbo definitely is a little softer below 2500 RPMs but nothing to complain about. Anything above 3000 all the way to 6900 RPMs it pulls like nothing else-Derek from IMW started tuning it it-
I had a max of 25 psi from the old turbo and that was pushing its limits this one will spike to 30 psi without even hesitating and the horsepower is unreal and it’s not even tuned yet I can’t wait!
major difference in size of compressor/turbine and inducer/exducer
seems to spool fairly quickly although def not like stock rdx mini turbo -
After I took the stock turbo off and compared them you would be amazed at how small the stock turbo turbine wheel is it’s only about the size of a half dollar which is amazing on how to get that much horsepower out of that tiny little thing
The new MHI turbo definitely is a little softer below 2500 RPMs but nothing to complain about. Anything above 3000 all the way to 6900 RPMs it pulls like nothing else-Derek from IMW started tuning it it-
I had a max of 25 psi from the old turbo and that was pushing its limits this one will spike to 30 psi without even hesitating and the horsepower is unreal and it’s not even tuned yet I can’t wait!
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#8
It’s an upgrade from the type r turbo direct from Mitsubishi-
major difference in size of compressor/turbine and inducer/exducer
seems to spool fairly quickly although def not like stock rdx mini turbo -
After I took the stock turbo off and compared them you would be amazed at how small the stock turbo turbine wheel is it’s only about the size of a half dollar which is amazing on how to get that much horsepower out of that tiny little thing
The new MHI turbo definitely is a little softer below 2500 RPMs but nothing to complain about. Anything above 3000 all the way to 6900 RPMs it pulls like nothing else-Derek from IMW started tuning it it-
I had a max of 25 psi from the old turbo and that was pushing its limits this one will spike to 30 psi without even hesitating and the horsepower is unreal and it’s not even tuned yet I can’t wait!
major difference in size of compressor/turbine and inducer/exducer
seems to spool fairly quickly although def not like stock rdx mini turbo -
After I took the stock turbo off and compared them you would be amazed at how small the stock turbo turbine wheel is it’s only about the size of a half dollar which is amazing on how to get that much horsepower out of that tiny little thing
The new MHI turbo definitely is a little softer below 2500 RPMs but nothing to complain about. Anything above 3000 all the way to 6900 RPMs it pulls like nothing else-Derek from IMW started tuning it it-
I had a max of 25 psi from the old turbo and that was pushing its limits this one will spike to 30 psi without even hesitating and the horsepower is unreal and it’s not even tuned yet I can’t wait!
#9
Instructor
Thread Starter
So far so good-Derek is amazing with the tuning and his knowledge-
Have a few thousand miles on it it all is good-no issues with anything (knock wood)
still waiting for my prl titanium inlet though-
also gonna go with meth injection as the fuel octane is now the limiting factor for any more power-
Have a few thousand miles on it it all is good-no issues with anything (knock wood)
still waiting for my prl titanium inlet though-
also gonna go with meth injection as the fuel octane is now the limiting factor for any more power-
#10
Instructor
Just ordered mine as well, hoping to have it on and tuned before July 24th for the drive to Import Alliance in Nashville. Great events if you've never been: https://importalliance.org/
#11
Instructor
Thread Starter
Just ordered mine as well, hoping to have it on and tuned before July 24th for the drive to Import Alliance in Nashville. Great events if you've never been: https://importalliance.org/
👍🏻
#12
Instructor
After shaving down the wastegate actuator body a little with a sanding wheel on the dremel everything went right back in with the oem inlet and oem CTR turbo cover. Still looks like nothing changed other than the O2 sensor location when you pop the hood. Car is on the 4th revision with Derek and feeling fantastic, TONS more power up top than the factory turbo could muster, and driving around town normally is essentially unchanged. I even noticed an MPG bump on a road trip this last weekend since the car doesn't see boost quite as quick. 28.6MPG over a couple hundred miles including mountains from Nashville to Atlanta.
#16
May do even better now. We just released the option to Disable Throttle Dampening for RDX.
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#23
Instructor
Thread Starter
#24
Instructor
Thread Starter
With derek almost done on the meth tuning I have come to a brick wall-
boost is limited to about 27 psi because of the MAP sensors on our car ( theres 2)
altthough there are 4 bar sensors that will bolt on the k tuner software does not support them-
there is no way around this yet-
initially I was seeing spikes of 31-32 psi but it would throw a p0238 code for the map sensor out of range-so the boost had to be scaled down-
So as it stands there’s no more to get out of this engine until ktuner enables the map sensor scaling tables for us-
I’m willing to bribe them if I have to!
boost is limited to about 27 psi because of the MAP sensors on our car ( theres 2)
altthough there are 4 bar sensors that will bolt on the k tuner software does not support them-
there is no way around this yet-
initially I was seeing spikes of 31-32 psi but it would throw a p0238 code for the map sensor out of range-so the boost had to be scaled down-
So as it stands there’s no more to get out of this engine until ktuner enables the map sensor scaling tables for us-
I’m willing to bribe them if I have to!
#27
Intermediate
Thats insane man, thanks for letting me know... I am eyeballing this kit to do an install with the PRL intercooler, Ktuner v2 (phearable stage 3), and custom air intake followed by an e-tune by Derek....any advice on where to purchase most of the items required or what additional things I should keep in mind.
#28
Instructor
Thread Starter
Granted I had methanol injected so it’s a bit different
but I convinced that the tuning from Derek is what made it survive-
i was running 32 psi and need the upgraded map and boost sensors
but I convinced that the tuning from Derek is what made it survive-
i was running 32 psi and need the upgraded map and boost sensors
#29
Intermediate
I was thinking everything mostly bolts right on but could be getting in way over my head.
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