GTM Performance Engineering: MHI Twin Turbo Official Release

DR_ · 05-24-2013, 10:06 AM

That oil pan is going to make changing the oil filter a lot more difficult and messy.

SAM@GTM · 05-24-2013, 11:55 AM

Quote:

Originally Posted by DR_

That oil pan is going to make changing the oil filter a lot more difficult and messy.

Changing the oil filter is not difficult. This has been thought of and tested. Sure, it makes things a little tighter space wise, but it is a small compromise compared to the benefit of adding an additional 3 quarts of oil to the oil system capacity. As for being messy, it's not really any messier than normal. You just need to use some brake cleaner and a rag to wipe up any residue. Same thing you do when you do a regular oil change.

Sam

SAM@GTM · 05-24-2013, 12:00 PM

Quote:

Originally Posted by SPOHN

For a reference

A lot of thought went into our oil pan. Not only is our pan larger, it is a direct bolt on and does not require cutting the tab on the subframe the way the Greddy pan does.

Also, if you purchase the oil pan as a standalone mod, it comes with hardware to install it as well as the baffling system.

Sam

BlkNismo · 05-24-2013, 12:16 PM

very nice GTM, now how about that redesigned exhaust manifold...

SAM@GTM · 05-24-2013, 12:28 PM

Quote:

Originally Posted by leighspped

So for "official release" I can't find good pictures of the most important part in the revision

The exhaust manifold

Please update first page with pics of manifold

Quote:

Originally Posted by BlkNismo

very nice GTM, now how about that redesigned exhaust manifold...

We will be sharing pictures of the final production manifold once we have it in hand, just like we did with the intercoolers and oil pan. We will do the same thing with the manifold, so stay tuned.

Sam

Chuck33079 · 05-24-2013, 12:29 PM

For those of us with the Garrett kit, is there a possibililty of buying the oil pan separately?

SAM@GTM · 05-24-2013, 01:13 PM

Quote:

Originally Posted by Chuck33079

For those of us with the Garrett kit, is there a possibililty of buying the oil pan separately?

Yes, it is possible and will be available for sale separately. You can mount the pan with the Garrett kit to get more volume. However, we don't recommend using the returns on the oil pan with the Garrett kit since the Garrett turbos are a lot more sensitive to oil return line. We have extensive experience with Garrett turbos and even per Garrett's recommendation, the oil return needs to be above the oil level.

Bear in mind that we didn't wait until now to do an oil pan out of laziness or to make installing the original turbo kit harder. There is a technical reason for requiring drilling of the upper pan for the oil returns on the Garrett kits. Putting the oil return in the lower pan drastically increases the chances of developing a smoking issue. Basically, the oil will go out the turbine shaft seal into the exhaust instead of into the pan. Keep in mind that ball bearing turbos require just a fine mist of oil to lubricate the bearings and when it comes out of the bearing section that is spinning at 50,000 - 130,000 rpm, it is very frothy and does not flow very well compared to liquid oil. This is why the return needs to be above the oil level: to give the return oil enough room to flow out of the line and calm down.

This is not an issue with the Mitsubishi journal bearing turbos since they require much higher oil volume and pressure to support the journal bearing riding on a film of oil. That is why we can use the oil pan on this kit.

Sam

Chuck33079 · 05-24-2013, 01:15 PM

Makes perfect sense. Thanks Sam. How would you recommend adding additional capacity beyond your oil cooler?

SAM@GTM · 05-24-2013, 01:19 PM

Quote:

Originally Posted by Chuck33079

Makes perfect sense. Thanks Sam. How would you recommend adding additional capacity beyond your oil cooler?

Simple, install our new pan but leave the oil returns in the original location (in the upper pan) . Now you have the best of both world. Sorry i should have made that clear in my original reply... edited for clarity.

Sam

Chuck33079 · 05-24-2013, 01:23 PM

Quote:

Originally Posted by SAM@GTM

Simple, install our new pan but leave the oil returns in the original location (in the upper pan) . Now you have the best of both world. Sorry i should have made that clear in my original reply .

Sam

Sounds like a plan. Since the upper pan is already tapped, leaving it alone just makes the install easier. How does it affect access to the oil filter with your oil cooler's sandwich plate? It's a tight fit in there already.

SAM@GTM · 05-24-2013, 01:29 PM

Quote:

Originally Posted by Chuck33079

Sounds like a plan. Since the upper pan is already tapped, leaving it alone just makes the install easier. How does it affect access to the oil filter with your oil cooler's sandwich plate? It's a tight fit in there already.

Quote:

Originally Posted by SAM@GTM

Changing the oil filter is not difficult. This has been thought of and tested. Sure, it makes things a little tighter space wise, but it is a small compromise compared to the benefit of adding an additional 3 quarts of oil to the oil system capacity. As for being messy, it's not really any messier than normal. You just need to use some brake cleaner and a rag to wipe up any residue. Same thing you do when you do a regular oil change.

Sam

See my post from earlier this morning.

Chuck33079 · 05-24-2013, 01:29 PM

Cool, thanks.

G37sHKS · 05-24-2013, 01:39 PM

Any plan for oil pan group buy for Garret kit owners?

Chuck33079 · 05-24-2013, 01:57 PM

Quote:

Originally Posted by G37sHKS

Any plan for oil pan group buy for Garret kit owners?

I'd imagine they've got their hands full with this group buy. Maybe after they start getting kits out the door.

SPOHN · 05-24-2013, 03:54 PM

Getting closer to install

05-24-2013, 12:29 PM	#711 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	For those of us with the Garrett kit, is there a possibililty of buying the oil pan separately? __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

05-24-2013, 01:15 PM	#713 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	Makes perfect sense. Thanks Sam. How would you recommend adding additional capacity beyond your oil cooler? __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

05-24-2013, 01:29 PM	#717 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	Cool, thanks. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

05-24-2013, 01:39 PM	#718 (permalink)
G37sHKS A True Z Fanatic Join Date: Feb 2010 Location: Dubai Posts: 1,183 Drives: 09 G37S Coupe 7AT Rep Power: 20	Any plan for oil pan group buy for Garret kit owners? DEpointfive0 likes this. __________________ G37 BUILD UNDER CONSTRUCTION

05-24-2013, 03:54 PM	#720 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 45 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	Getting closer to install Baer383, ts-c63 and NitrousZ34 like this. __________________

05-24-2013, 10:06 AM	#706 (permalink)
DR_ Track Member Join Date: Jul 2009 Location: Dallas Posts: 981 Drives: Touring/Sport M6 PG Rep Power: 16	That oil pan is going to make changing the oil filter a lot more difficult and messy.

05-24-2013, 12:16 PM	#709 (permalink)
BlkNismo Track Member Join Date: Sep 2011 Location: USA Posts: 614 Drives: Nismo Rep Power: 14	very nice GTM, now how about that redesigned exhaust manifold...

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