EvolutionM - Mitsubishi Lancer and Lancer Evolution Community
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EvolutionM - Mitsubishi Lancer and Lancer Evolution Community (https://www.evolutionm.net/forums/)
-   Evo Dyno Tuning / Results (https://www.evolutionm.net/forums/evo-dyno-tuning-results-299/)
-   -   Stepping my IX up for 91/E85, looking for final preparation suggestions (https://www.evolutionm.net/forums/evo-dyno-tuning-results/740846-stepping-my-ix-up-91-e85-looking-final-preparation-suggestions.html)

[TK] Jun 10, 2017 02:13 PM
congrats. i love seeing other 71hta cars. last year i dyno 405 at 27psi. since then i have added COP setup and dropped my stock o2 housing for a muse o2 dump. I'm curious how much I have gained...

e_kobz Jun 10, 2017 02:38 PM
Originally Posted by [TK] (Post 11747006)
congrats. i love seeing other 71hta cars. last year i dyno 405 at 27psi. since then i have added COP setup and dropped my stock o2 housing for a muse o2 dump. I'm curious how much I have gained...
Probably quite a bit with the 02 dump :D

2006EvoIXer Jun 10, 2017 05:06 PM
Okay, today, I was low on fuel. Searched for E85 station and nearest was 28 km away and my low fuel light comes on. Decided to get 91 at nearest gas station. Switched to 91 map and car had rough idle until E85 was cycled out (next time, I'll idle a few minutes on E85 map to flush out E85). Engine stalled after a few lights. I probably should have filled up closer to empty instead of when warning light first came on.

2006EvoIXer Jun 10, 2017 05:11 PM
Originally Posted by e_kobz (Post 11747009)
Probably quite a bit with the 02 dump :D
How does O2 dump make more power? I'm thinking it will allow wastegate to open slightly later without overboost, so we can get a little closer to preset boost before WGA opens. But that's probably not much more power. As for the DP, it will only take the exhaust turbine flows so flows won't be consistent. Doesn't that cause more backpressure since it is no longer flowing continuously?

4G63_EVO Jun 10, 2017 05:39 PM
Originally Posted by 2006EvoIXer (Post 11747027)
Okay, today, I was low on fuel. Searched for E85 station and nearest was 28 km away and my low fuel light comes on. Decided to get 91 at nearest gas station. Switched to 91 map and car had rough idle until E85 was cycled out (next time, I'll idle a few minutes on E85 map to flush out E85). Engine stalled after a few lights. I probably should have filled up closer to empty instead of when warning light first came on.
Yeah you have to drain more than that for sure!
Originally Posted by 2006EvoIXer (Post 11747028)
How does O2 dump make more power? I'm thinking it will allow wastegate to open slightly later without overboost, so we can get a little closer to preset boost before WGA opens. But that's probably not much more power. As for the DP, it will only take the exhaust turbine flows so flows won't be consistent. Doesn't that cause more backpressure since it is no longer flowing continuously?
No restrictions {thumbup}

2006EvoIXer Jun 10, 2017 05:54 PM
Originally Posted by 4G63_EVO (Post 11747040)
Yeah you have to drain more than that for sure!

No restrictions {thumbup}
How many E85 miles can we drive after light turns on? On 91, we can get 30 more miles right? So E85 can get 20?

2006EvoIXer Jun 10, 2017 06:02 PM
Originally Posted by 4G63_EVO (Post 11747040)
Yeah you have to drain more than that for sure!

No restrictions {thumbup}
This is probably why my tuner cut boost at 23 psi on 91 gas. He didn't want people new to E85 to blow their engines when switching fuel.

Anyway, i drove about 40-50 miles and topped off on 91 to dilute what's left of E85. Car is running fine now. I was worried...:eek:

2006EvoIXer Jun 10, 2017 06:06 PM
I noticed that E85 fuel makes the engine run smooth. It starts up gently unlike on 91, which roars when started. When I release the gas pedal, car bogs on 91. On E85, the engine bogs like it has no torque. It's so surprising that E85 made 80 more HP!

e_kobz Jun 10, 2017 06:08 PM
Originally Posted by 2006EvoIXer (Post 11747028)
How does O2 dump make more power? I'm thinking it will allow wastegate to open slightly later without overboost, so we can get a little closer to preset boost before WGA opens. But that's probably not much more power. As for the DP, it will only take the exhaust turbine flows so flows won't be consistent. Doesn't that cause more backpressure since it is no longer flowing continuously?
It eliminates back pressure thus making the turbine wheel work more efficiently

2006EvoIXer Jun 10, 2017 06:36 PM
Originally Posted by e_kobz (Post 11747047)
It eliminates back pressure thus making the turbine wheel work more efficiently
That makes sense. So it will have less pressure around 3800 RPM to redline. Do you know how much power?

e_kobz Jun 10, 2017 06:38 PM
Originally Posted by 2006EvoIXer (Post 11747053)
That makes sense. So it will have less pressure around 3800 RPM to redline. Do you know how much power?
Up to 30whp has been achieved when upgrading to a 02 dump

2006EvoIXer Jun 10, 2017 08:43 PM
I'm drawing a blank on what and where in the cabin to install a boost gauge and maybe an EGT.

2006EvoIXer Jun 10, 2017 09:20 PM
Originally Posted by e_kobz (Post 11747054)
Up to 30whp has been achieved when upgrading to a 02 dump
This is on my radar now. Just need to figure out a way to get it to pass smog.

e_kobz Jun 10, 2017 09:38 PM
Originally Posted by 2006EvoIXer (Post 11747068)
I'm drawing a blank on what and where in the cabin to install a boost gauge and maybe an EGT.
Get a gruppe-s gauge pod

2006EvoIXer Jun 10, 2017 09:54 PM
Originally Posted by e_kobz (Post 11747075)
Get a gruppe-s gauge pod
Gruppe-s site is gone? Website changed a few months back when I looked.


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