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Old 05-03-2022, 10:48 AM   #76
K3rm1tth3fr0g
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Looks like it puffed some blue smoke.


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True, likely just blowby.

Compression and leakdown results were superb prior to the tune. As were the previous two Blackstone tests.

I'd wager its from my Grimmspeed AOS getting overwhelmed and pushing oil into the inlet - tuner agreed with this. Technically the GS AOS is designed for stock applications and not 25+ psi of boost I got it as a gift a few years ago, which is the main reason I am still using it. I'll be switching to an IAG or Killer B AOS when I build my 2.5L motor.

In the meantime I have a catch can ready to install in series with the GS unit as soon as I get the car back - needed some more fine tuning adjustment and there are some hardware and software kinks to iron out with my custom gauges and some other odds and ends, but I should have the car fully finished soon and will post a new thread.
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Old 05-03-2022, 11:01 AM   #77
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True, likely just blowby.
Was it blue? It looked more like fuel to me (but hard to tell from a 1080 vid). Usually when there are clumps of fuel like that it is from knock. The grimmspeed should be just borderline ok at that power/boost level, but definitely time for an upgrade
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Old 05-03-2022, 11:20 AM   #78
K3rm1tth3fr0g
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Was it blue? It looked more like fuel to me (but hard to tell from a 1080 vid). Usually when there are clumps of fuel like that it is from knock. The grimmspeed should be just borderline ok at that power/boost level, but definitely time for an upgrade
If you make it fullscreen, you can see after 0:22 in the video it changes hues to be a bit more blueish, which I suspect is oil. The other smoke is probably just from incomplete combustion on pump gas - or knock like you said.

From what I understand about the GrimmSpeed, it's limit is less based on power of the car, and more based on use case. A 340WHP high RPM focused car that sees track or AutoX time performs worse, and pushes more oil than than a 400WHP car that's exclusively on the street.

Also for reference, this was a pull on pump gas not E85, and was during the tuning process, not the final pull.

Last edited by K3rm1tth3fr0g; 05-12-2022 at 10:00 AM.
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Old 05-11-2022, 10:15 PM   #79
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Is that still on an ej205 or an ej2filthy7 ?


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Old 05-11-2022, 10:17 PM   #80
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Is that still on an ej205 or a hybrid ej2filthy7 ?


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Old 05-11-2022, 10:22 PM   #81
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Is that still on an ej205 or an ej2filthy7 ?


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Stock USDM EJ205 longblock 65k miles - refreshed HGs and timing belt at 60k 350WTQ on this dyno and this motor is utterly insane to me

We got EGT working on the gauge today, and are finishing up the clearancing on the DMX shifter, and once that's done, and the oil temp is addressed (will be testing with the 06/07 OEM belly pan starting tomorrow likely) I'll be making a new, detailed post about the car and the setup when I've had it back for a while.
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Old 05-12-2022, 09:09 AM   #82
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Nice
That is probably at limit for a stock ej205, keep an eye on oil level and itíll run a long time with good quality synthetic oil an 4000 mile change intervals. Congratulations, good luck with it.


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Old 05-12-2022, 09:50 AM   #83
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Nice
That is probably at limit for a stock ej205, keep an eye on oil level and it'll run a long time with good quality synthetic oil an 4000 mile change intervals. Congratulations, good luck with it.


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Thank you!

I think 360WHP @ 26psi is certainly way over the limit of the 205 and I'm fine with that (this dyno reads a stock STI around 200WHP) I was never expecting this setup to last forever, just wanted to max out a USDM 205 since I had one in such great shape. And if it lasts a while at this power level before kicking the bucket, I will be more than pleased.

But with E85, I don't think I'm going to be extending OCIs as far as 4k - tuner suggested oil changes after 10 tanks of fuel when running E85, so it will be somewhere around there. I bet with the KB pan and extra capacity I could probably get away with a bit more, though better safe than sorry when it comes to ethanol oil contamination.

Last edited by K3rm1tth3fr0g; 05-12-2022 at 10:06 AM.
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Old 05-12-2022, 11:00 AM   #84
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Default EJ205 VF39 1050X - 250WHP 225TQ on Mainline Dyno

So 360whp on e85 ?
Between the cost of e85 and more frequent oil changes that gets expensive quickly. Are using e85 to just race or for every day driving ?


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Old 05-12-2022, 12:39 PM   #85
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Originally Posted by D-Rodman View Post
So 360whp on e85 ?
Between the cost of e85 and more frequent oil changes that gets expensive quickly. Are using e85 to just race or for every day driving ?


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Correct - 360/350WTQ on E85

E85 is actually cheaper than 92 from the stations I go to. So it's gonna depend on how fuel prices behave. I could see myself mixing up a lower E% mix if need be since the majority of the benefits of ethanol are still present at ~E60 or so - but that makes 0 sense when pump gas is so expensive. And I use T6 (and price match it when I buy) with OEM blue filters I get in bulk, so oil changes aren't that expensive.

The main benefit aside from the extra power it makes, is how quickly the torque comes on. It is extremely driveable.

This 20G setup has more lowend torque, and way better transient response than my much smaller VF39 setup.

I attribute these improvements to the overall efficiency of the build, along with the ball bearing CHRA, and the extra fuel mass of E85.

I'll be posting the dyno sheet in the new thread when everything is fully wrapped up, and you'll be able to compare pump gas to E85.

Last edited by K3rm1tth3fr0g; 05-13-2022 at 10:55 PM.
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Old 05-13-2022, 11:17 PM   #86
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Default EJ205 VF39 1050X - 250WHP 225TQ on Mainline Dyno

E85 may cost less at the pump but it may still end up costing you the same or more than gasoline because burn rate. I realize nobody building fast cars care about fuel consumption.

Iím actually removing the Id850 injectors and my 34,000 mile SoCal ported and coated vf48 in favor of a smaller turbo and injectors on my ej207.

This little guy just made it across the big pond from Australia. The only place I could find a brand new vf35. Iíll be installing dark blue STi injectors to go with it. Iím giving up top end that I donít need in favor of low end and midrange. Transient spool should be very good, fuel consumption should also diminish, Iím very stoked.
Congratulations on your setup, good luck with it.


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Old 05-14-2022, 01:20 AM   #87
K3rm1tth3fr0g
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E85 may cost less at the pump but it may still end up costing you the same or more than gasoline because burn rate. I realize nobody building fast cars care about fuel consumption.

Iím actually removing the Id850 injectors and my 34,000 mile SoCal ported and coated vf48 in favor of a smaller turbo and injectors on my ej207.

This little guy just made it across the big pond from Australia. The only place I could find a brand new vf35. Iíll be installing dark blue STi injectors to go with it. Iím giving up top end that I donít need in favor of low end and midrange. Transient spool should be very good, fuel consumption should also diminish, Iím very stoked.
Congratulations on your setup, good luck with it.


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Yeah it's certainly drops MPG a bit, but the lower cost at the pump upfront, and the increase in usable torque makes it worth it for me.

And I do still suggest everyone who can, run E85 because of the changes it makes in driveability, power, and motor safety.

Why downsize injectors?

I like the VF34 all day long over the 39/43/48. Hell, even the VF30 performs and spools better than those turbos in most situations. But yea the 34 will spool/respond way better than all the USDM VFs.

Don't have much experience with the VF35 but the P15 housing sure seems small. And no ball bearing

Make sure to post your results when you have them. Do you know what cm^2 or A/R that VF uses?

Thanks for the kind words and I look forward to seeing your new results.

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Old 05-14-2022, 09:50 AM   #88
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The P15 exhaust housing is supposed to be the magic maker on the little gem. I was surprised how small the cold side looks. Iím going to take out my stock td04HL and vf43 from storage and do a side by side size comparison. Internet says vf34 is a 460cfm turbo and the vf35 is a 425cfm turbo. Therefore, less top end out of the vf35.
The vf34 seems to be universally loved, not surprised you are down with it.
Taking out the ID850 and installing OEM dark blue STi injectors because I want to experiment with the smaller setup on the ej207. I regret never driving the ej207 with the original vf30 and pink injectors. Iíll have the vf48, the ID850 injectors and map saved for if I want to go back to it. The vf48 makes very good power and I donít feel it is laggy at all taking off the line, it feels a bit lazy highway cruising unless above 3500rpm in 6th gear. I want to try the vf35 and see if it agrees more with my driving style. I love my modified TD04HL on my avcs ej205. You know Iím an old guy, I no longer feel like I need to drive anything with lots of power. When I was younger Iíd be into big power everything, not any longer, I value more a comfortable ride with enough power to make me happy. I did run some youngster on an STi recently, I regret it later and realized Iíll never do it again. But I was surprised how good the ej205 did. He did get around me but not like I expected. I saw him at the car wash later so I pulled in and started talking and the guy had a built motor. Wouldnít tell me what turbo he had, must have not been proud of it. I pointed out how close it was and he responded that it was because he wasnít running e85. Thatís when I told him I was also just running 93 on a bone stock ej205 with a modified td04. Anyway, donít want hijack your thread, Iíll take my small turbo talk to a thread of its own, Iíll probably be the only guy there. I still have a third GD with a jdm avcs ej205 with a vf48 and DW650 injectors to play with when I get it running.


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Old 05-14-2022, 03:38 PM   #89
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This 20G setup has more lowend torque, and way better transient response than my much smaller VF39 setup.

I attribute these improvements to the overall efficiency of the build, along with the ball bearing CHRA, and the extra fuel mass of E85.
Don't forget to give credit to those STI gear ratios. I knew you had a great combination with this setup. You have the equivalent of your original 4.44 gears, plus four gears to 100mph where there were three -- with my stock 5-speed, 1st was a bit tall, with too big a jump to second as well. Of course this is all part of the efficiency.
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Old 05-14-2022, 10:03 PM   #90
K3rm1tth3fr0g
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Originally Posted by D-Rodman View Post
The P15 exhaust housing is supposed to be the magic maker on the little gem. I was surprised how small the cold side looks. I'm going to take out my stock td04HL and vf43 from storage and do a side by side size comparison. Internet says vf34 is a 460cfm turbo and the vf35 is a 425cfm turbo. Therefore, less top end out of the vf35.
The vf34 seems to be universally loved, not surprised you are down with it.
Taking out the ID850 and installing OEM dark blue STi injectors because I want to experiment with the smaller setup on the ej207. I regret never driving the ej207 with the original vf30 and pink injectors. I'll have the vf48, the ID850 injectors and map saved for if I want to go back to it. The vf48 makes very good power and I don't feel it is laggy at all taking off the line, it feels a bit lazy highway cruising unless above 3500rpm in 6th gear. I want to try the vf35 and see if it agrees more with my driving style. I love my modified TD04HL on my avcs ej205. You know I'm an old guy, I no longer feel like I need to drive anything with lots of power. When I was younger I'd be into big power everything, not any longer, I value more a comfortable ride with enough power to make me happy. I did run some youngster on an STi recently, I regret it later and realized I'll never do it again. But I was surprised how good the ej205 did. He did get around me but not like I expected. I saw him at the car wash later so I pulled in and started talking and the guy had a built motor. Wouldn't tell me what turbo he had, must have not been proud of it. I pointed out how close it was and he responded that it was because he wasn't running e85. That's when I told him I was also just running 93 on a bone stock ej205 with a modified td04. Anyway, don't want hijack your thread, I'll take my small turbo talk to a thread of its own, I'll probably be the only guy there. I still have a third GD with a jdm avcs ej205 with a vf48 and DW650 injectors to play with when I get it running.
Seems a bit unnecessary to replace the injectors when the 850s can do everything the 565s can do - and obviously more. Just tell your tuner to tune them as if they were 565s for testing purposes.

I do somewhat wish I could compare my current results to a VF34 using the P18 or p20. I bet ~335 on E is where would be about where I'd max out, if that. But I am sure on E the response would be insane for a 2.0L given how well my 20G responds.

Do you know the A/R or CM^2 of the VF35 hotside?

You going with the same tuning shop as before?

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Originally Posted by Dave D. View Post
Don't forget to give credit to those STI gear ratios. I knew you had a great combination with this setup. You have the equivalent of your original 4.44 gears, plus four gears to 100mph where there were three -- with my stock 5-speed, 1st was a bit tall, with too big a jump to second as well. Of course this is all part of the efficiency.
Yeah the early STi ratios certainly wakes up any car it's attached to, and mine is thankfully no exception. And as you know, my 4.44 setup was no slouch, but I think the 6MT is certainly going to hold up to 350WTQ on John's dyno better than that 5MT

Speaking of that 5 speed, it was put into a guy's GD by Prime Motoring last year and has been working well ever since (I assume).


Regarding my car: the last few weeks have been spent ironing out kinks (mostly with the shifter, the EGT displaying on the multi-gauge). And on Friday the engine bay was covered in ice to try and get it below the shop's indoor ambient, and started just fine at 50F

A check valve was also recently added to the fueling setup to help keep the pump primed.

The OEM 06/07 belly pan is being added and will be tested to see if it helps increase the sump temps to an acceptable level. If not, a second oil temp gauge will be added via a sandwich plate likely, and the bottom of the oil pan will be covered with adhesive backed insulation.

With everything working on the gauges and nearly of the mechanical work done, the car should be fully finished in it's current incarnation next week if all goes according to plan.

Last edited by K3rm1tth3fr0g; 05-15-2022 at 07:41 PM.
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Old 05-15-2022, 12:42 AM   #91
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Default EJ205 VF39 1050X - 250WHP 225TQ on Mainline Dyno


Itís a 7cm .49 a/r 425cfm turbo. If Iím not happy with it Iíll try a VF34.




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Old 05-15-2022, 01:38 AM   #92
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It's a 7cm .49 a/r 425cfm turbo. If I'm not happy with it I'll try a VF34.




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Saw that post - it just didn't specify which housing.

Thanks for clarifying.

Yea the 34 is kinda the ultimate OEM turbo (aside from the insanely expensive modern JDM TS stuff) and will ultimately spool and respond similarly the VF you got, while making 39/43/48 power. Plus the BB CHRA doesn't hurt anything either.

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Old 05-15-2022, 01:44 AM   #93
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Double post - stupid nasioc

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Old 05-18-2022, 11:04 PM   #94
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Still trying to iron out low oil temp issues. 165-170F during cruise 190F in traffic at 50F ambient.

We tried to install a sandwich plate to read temps after the oil pump, in a addition to the sump, but my headers prevented that from fitting.

I have seen other reports of people saying their KB pan reported sump temps well below the actual temps entering the engine - around 20-30F lower. So I may just have to take the temps with a grain of salt.

The belly pan we added did help temps, but not a huge amount.

So next up we are replacing the AEM oil temp sensor with an EI-Sensor ETP10075 NTC K-type thermal probe.

This will protrude about 2" into the oil so it should be much closer to the pickup and will hopefully yield higher temps.



If this doesn't work I am just going to offset whatever temps I get by around 20F and factor in that all the oil is being pumped through the oil pump, as well as the oil cooler before it splits into the block's galleries when evaluating the temp of the oil as measured at the sump.

Car has been getting road tuned and cold start tuned the past several weeks just cleaning things up in the map in various respects while we diagnose other issues. All of that was done on E85. Today pump gas was added back and the car is being driven and adjusted on 92 octane for the first time since it was on the dyno.

But as of now our last hurdle is the oil temp.

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