04-12-2015
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#741
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Join Date: Apr 2008
Location: Mankato
Drives: 2004 Evo 8
Posts: 1,152
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Re: Mark's 1G Winter Projects
Simply awesome man! I love following what you do, you sir are world class! Cant wait to see this thing!
PS: Love my 2.3 that MAP built as well, very solid motor
__________________
2010 Nissan GTR - E85 #RonnieTuned
2004 AS Evo VIII - MAP 2.3/FP Green E85 480/450 @30psi #RonnieTuned
2006 WW IX RS - Stock Motor/Turbo/E85 388/404 #RonnieTuned
2006 WW IX RS - 20K Miles - SOLD
2006 WW IX RS 396/404 - SOLD
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04-13-2015
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#742
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aka Goodbye
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Re: Mark's 1G Winter Projects
Wow, never heard of stinting before. Very interesting.
__________________
2009 Corvette Z51-SOLD
1992 Mitsubishi Eclipse GSX-SOLD
2013 BMW Z4-Current summer hooptie
2017 GMC Yukon-Current winter hooptie
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04-13-2015
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#743
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Join Date: Oct 2005
Location: The land of the next-gen HMMWV
Drives: A BMW
Posts: 1,875
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Re: Mark's 1G Winter Projects
So the welded plugs essentially are filling in gaps caused by the water jacket to reinforce the deck surface? Very interesting!
__________________
Style's automotive engineer
Sponsored by DB Performance (dbptuning.com)
A dsm, a bimmer, a DORGE CUMMINZ, and a non running DSM race car... for now.
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04-18-2015
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#744
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Join Date: Aug 2006
Location: eagan
Posts: 898
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Re: Mark's 1G Winter Projects
Quote:
Originally Posted by s1ngletracker
So the welded plugs essentially are filling in gaps caused by the water jacket to reinforce the deck surface? Very interesting!
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Exactly it!
I'm getting very close to starting it up now. I called DSS and they said my axles would be done next week. Its all coming together for this racing season!
__________________
Slowest: 2017 Corvette Z06 - Z07 Trim
Fast: EvoIX SE Blouch 2.0xtr turbo E85
Faster: Evo IX MR PTE6266 E85 823WHP 9.90@147
Fastest: 92 Talon AWD 8.14 @ 171 MPH
www.maperformance.com
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05-06-2015
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#745
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Join Date: Aug 2006
Location: eagan
Posts: 898
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Re: Mark's 1G Winter Projects
It's alive! Started it yesterday, all is good. It fired right up. 0 issues! I got the custom axles back too. Tomorrow it goes in for an alignment.
__________________
Slowest: 2017 Corvette Z06 - Z07 Trim
Fast: EvoIX SE Blouch 2.0xtr turbo E85
Faster: Evo IX MR PTE6266 E85 823WHP 9.90@147
Fastest: 92 Talon AWD 8.14 @ 171 MPH
www.maperformance.com
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05-06-2015
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#746
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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Re: Mark's 1G Winter Projects
Love it!!
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05-06-2015
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#747
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Join Date: Jan 2010
Location: Minnesota
Drives: 97 Eclipse GST spyder(Project car), 95 Corolla(DD), 91 MR2 turbo(Fun car)
Posts: 751
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Re: Mark's 1G Winter Projects
That exhaust looks massive!
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05-21-2015
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#748
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immune from paybans
Join Date: Oct 2005
Location: West Des Moines
Drives: poorly
Posts: 4,358
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Re: Mark's 1G Winter Projects
Quote:
Originally Posted by Mark Leasure
I sold my AEM EMS Series 1. I purchased a series 2 ems and a 4 channel wideband O2 controller with the exhaust back pressure monitor kit. Now I can monitor each cylinders AFR and tune accordingly.
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Sorry to bring back such an old post, but I had some questions.
O2 sensors read differently pre-turbo because of exhaust pressure right? They are designed to be on N/A or post-turbo pressures. Does the AEM setup adjust for this with an exhaust pressure sensor? From your post it sounds like it does, I was just curious. I'd like to know what adjustments have to be made due to pressure.
This could be quite handy on a single turbo system on dual banks, like a boxer or v6/v8 engine where you normally have to read the AFR post turbo, when one bank's exhaust travel is much longer than the other.
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05-24-2015
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#749
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Join Date: Aug 2006
Location: eagan
Posts: 898
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Re: Mark's 1G Winter Projects
Quote:
Originally Posted by asshanson
Sorry to bring back such an old post, but I had some questions.
O2 sensors read differently pre-turbo because of exhaust pressure right? They are designed to be on N/A or post-turbo pressures. Does the AEM setup adjust for this with an exhaust pressure sensor? From your post it sounds like it does, I was just curious. I'd like to know what adjustments have to be made due to pressure.
This could be quite handy on a single turbo system on dual banks, like a boxer or v6/v8 engine where you normally have to read the AFR post turbo, when one bank's exhaust travel is much longer than the other.
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No worries on bringing an old post up. Yes youre correct, due to the pressure in the exhaust, pre turbo, the wideband O2 readings are not valid. The exhaust gas pressure transducer will allow for a calculation to be made to compensate. The pressure transducer input and algorithm processing is built into AEM 4 channel wideband module. Im not sure of the algorithm/calibration curve of the AFR vs pressure.
This is a great feature; I mainly use it to determine health of each cylinder. The combined AFR post turbo can only detect major differences. I can detect a slightly clogged injector or a torn insulator with the per cylinder wideband. I detected a torn insulator, one cylinder was off by over a half point of AFR but the feedback error on my post turbo 02 sensor showed a 2% change. You can explain away a 2% difference day to day. However, a half point on one cylinder difference is significant and made me investigate the issue further.
Update on the car: I tried to dyno the car last week, my clutch slipped and we initially thought it was tire spin. This was in 3rd gear. So we tried 3rd gear again same thing. It hit the ignition rev limiter when the spin happened. Then still thinking it was tire spin we tried 4th gear. It was not tire spin and it was my clutch slipping, it was like an on/off threshold. Once the clutch started to slip the RPM shot up extremely fast and banged off the rev limiter and hit fuel cut at 9600RPM. It hurt the motor. I have coolant in cylinder #1. I dont know the extent of the damage at this time. Its disturbing since it was not pushing coolant, but burning it. Ill be working as fast as possible to salvage the race season. Not good news.
__________________
Slowest: 2017 Corvette Z06 - Z07 Trim
Fast: EvoIX SE Blouch 2.0xtr turbo E85
Faster: Evo IX MR PTE6266 E85 823WHP 9.90@147
Fastest: 92 Talon AWD 8.14 @ 171 MPH
www.maperformance.com
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05-24-2015
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#750
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aka Goodbye
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Re: Mark's 1G Winter Projects
Dude, sorry to hear, that sucks. Let's hope it's something simple and not hard parts.
__________________
2009 Corvette Z51-SOLD
1992 Mitsubishi Eclipse GSX-SOLD
2013 BMW Z4-Current summer hooptie
2017 GMC Yukon-Current winter hooptie
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05-25-2015
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#751
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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Re: Mark's 1G Winter Projects
Ugh, do not like.
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05-25-2015
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#752
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Join Date: Dec 2009
Location: Lino Lakes
Drives: 17 Honda Accord
Posts: 4,041
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Re: Mark's 1G Winter Projects
^Same...the car looked so perfect when I saw it last, shame it is having issues.
Hopefully you get it fixed up bud, good luck.
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05-29-2015
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#753
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Join Date: Apr 2008
Location: Mankato
Drives: 2004 Evo 8
Posts: 1,152
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Re: Mark's 1G Winter Projects
Fuck :/
__________________
2010 Nissan GTR - E85 #RonnieTuned
2004 AS Evo VIII - MAP 2.3/FP Green E85 480/450 @30psi #RonnieTuned
2006 WW IX RS - Stock Motor/Turbo/E85 388/404 #RonnieTuned
2006 WW IX RS - 20K Miles - SOLD
2006 WW IX RS 396/404 - SOLD
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05-29-2015
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#754
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flips McGee
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Re: Mark's 1G Winter Projects
We are in a similar boat. Do the work you do Mark!
__________________
Quote:
Originally Posted by Murlo26
I need to listen to Scheides more often i think :)
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Quote:
Originally Posted by turbotalon1g
...I realized that I can't keep up my shit talking without anything to back it up.
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Quote:
Originally Posted by JV
S2000: For those of us that know the Miata is the best car on the planet, but also want extra power and to not have to turn in our man cards.
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05-29-2015
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#755
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Join Date: Aug 2006
Location: eagan
Posts: 898
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Re: Mark's 1G Winter Projects
Yep, doing work!
I pulled the engine and the transmission out last weekend while it rained. I pulled the head off and don't visually see any damage to the short block and cylinder head. I measured the pistons TDC and they are the same, so no bent rods! I'm going to have the cylinder pressure tested. I sent out the clutch to Tilton Tuesday, I spoke with an engineer and he confirmed that it will have a 2-3 week turnaround. I need to play the project manager game to make sure Tilton service timing lives up to their expectations they set with me. If this all comes through I will be at the MAP event in June!!!!
__________________
Slowest: 2017 Corvette Z06 - Z07 Trim
Fast: EvoIX SE Blouch 2.0xtr turbo E85
Faster: Evo IX MR PTE6266 E85 823WHP 9.90@147
Fastest: 92 Talon AWD 8.14 @ 171 MPH
www.maperformance.com
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05-29-2015
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#756
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N17r0U$ br4D
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Re: Mark's 1G Winter Projects
^w00t! It'd be cool to see it in action at proving grounds
__________________
My rice rocket best times
Pump Gas: 8.85 @ 152.3 in 2016
Race Gas: 8.982 @ 152.16 in 2014
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05-30-2015
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#757
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15min late to the world
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Re: Mark's 1G Winter Projects
Sorry to hear about this. Good luck I hope to see you at BIR.
__________________
Moon taxi: 9.45@156.9 mph 41psi 2011... Letting people down sense 2012.
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06-08-2015
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#758
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Join Date: Aug 2006
Location: eagan
Posts: 898
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Re: Mark's 1G Winter Projects
Update: Map built a new cylinder head testing jig. It Help detect a crack in the egr passage on cylinder #4 . The head is on its way to being fixed. This is good news, now I know where the coolant was coming from. I'm very happy that MAP is continues to build capabilities to delight customers like me! The clutch will be here in time to toss in the car with only a 250 dollar rebuild charge. My pressure plate lost its spring force when I over heated the clutch at the track.
A lot of work to be done next week! But I will be at pg2015.1
__________________
Slowest: 2017 Corvette Z06 - Z07 Trim
Fast: EvoIX SE Blouch 2.0xtr turbo E85
Faster: Evo IX MR PTE6266 E85 823WHP 9.90@147
Fastest: 92 Talon AWD 8.14 @ 171 MPH
www.maperformance.com
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06-09-2015
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#759
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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Re: Mark's 1G Winter Projects
Love it, keep the updates coming
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06-10-2015
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#760
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Join Date: Oct 2003
Location: Minnesota
Posts: 1,647
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Re: Mark's 1G Winter Projects
Sounds like some good progress! Keep it up.
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