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

Re: Mark's 1G Winter Projects
 

Wow, never heard of stinting before. Very interesting.

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!

Re: Mark's 1G Winter Projects
 

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!

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.

http://i412.photobucket.com/albums/p...5_201831_1.jpg

Re: Mark's 1G Winter Projects
 

Love it!!

Re: Mark's 1G Winter Projects
 

That exhaust looks massive!

Re: Mark's 1G Winter Projects
 

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.

Re: Mark's 1G Winter Projects
 

No worries on bringing an old post up. Yes you’re 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. I’m 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 don’t know the extent of the damage at this time. It’s disturbing since it was not pushing coolant, but burning it. I’ll be working as fast as possible to salvage the race season. Not good news.

Re: Mark's 1G Winter Projects
 

Dude, sorry to hear, that sucks. Let's hope it's something simple and not hard parts.

Re: Mark's 1G Winter Projects
 

Ugh, do not like.

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.

Re: Mark's 1G Winter Projects
 

Fuck :/

Re: Mark's 1G Winter Projects
 

We are in a similar boat. Do the work you do Mark!

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!!!!

Re: Mark's 1G Winter Projects
 

^w00t! It'd be cool to see it in action at proving grounds

Re: Mark's 1G Winter Projects
 

Sorry to hear about this. Good luck I hope to see you at BIR.

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

Re: Mark's 1G Winter Projects
 

Love it, keep the updates coming

Re: Mark's 1G Winter Projects
 

Sounds like some good progress! Keep it up.