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Patrick
Patrick GRM+ Memberand MegaDork
9/29/19 6:34 p.m.

If it’s the same maf as my 00 q45, they’re $20 on amazon 

Stampie
Stampie GRM+ Memberand UltimaDork
9/29/19 6:56 p.m.

In reply to maschinenbau :

That's how the MAF sensor in my Q45 failed. I actually pulled the sensor itself out of a G35 and put it in my Q45 housing. 

Stampie
Stampie GRM+ Memberand UltimaDork
9/29/19 7:08 p.m.

What year was your donor?  I can probably bring a 2004 350z MAF to the Challenge and if you want I can hit the local you pick it for other donors. 

maschinenbau
maschinenbau GRM+ Memberand SuperDork
9/29/19 9:37 p.m.

I'm probably just going to replace it new and call it normal wear and tear. I need to stop hurting this car and save it for the Challenge. 

Robbie
Robbie GRM+ Memberand UltimaDork
9/30/19 5:39 a.m.

Awesome work on the roll bar! You'll figure out the maf thing.

jfryjfry
jfryjfry Dork
9/30/19 7:21 a.m.

Did you disconnect the battery and ecu while welding?  I’ve heard of issues arising from not doing it.  But plenty have welded on vehicles without and not had problems.  

¯\_(ツ)_/¯
¯\_(ツ)_/¯ PowerDork
9/30/19 7:23 a.m.

In reply to jfryjfry :

I have a suspicion that the "I welded stuff and now my electronics are fried" complaints are mostly people who put the ground clamp on their engine block and then weld something elsewhere, sending a bunch of juice through their wiring and sensors.

maschinenbau
maschinenbau GRM+ Memberand SuperDork
9/30/19 7:25 a.m.

In reply to jfryjfry :

Battery yes, ECU ground no...

But yes that is essentially the order of events. Running driving Friday night. Welded Saturday and Sunday. Runs like E36 M3 now. Fingers crossed on MAF sensor.

¯\_(ツ)_/¯
¯\_(ツ)_/¯ PowerDork
9/30/19 7:28 a.m.

In reply to maschinenbau :

Check continuity from the plug to the ECU connector?

mazdeuce - Seth
mazdeuce - Seth Mod Squad
9/30/19 7:41 a.m.

Everyone else is trying to help you with the MAF and I'm just sitting here thinking that you did a great job on the roll bar, especially the feet. Well done. 

Dusterbd13-michael
Dusterbd13-michael MegaDork
9/30/19 7:50 a.m.
mazdeuce - Seth said:

Everyone else is trying to help you with the MAF and I'm just sitting here thinking that you did a great job on the roll bar, especially the feet. Well done. 

Exactly my thoughts. Really nice welding from what I can see in pictures 

maschinenbau
maschinenbau GRM+ Memberand SuperDork
9/30/19 6:31 p.m.

Thanks guys, it was an exhausting install especially in this bullE36 M3 southern 95 deg "fall" weather. Starting to miss the Midwest more and more. 

Confirmed the MAF is receiving the correct voltages, and I pulled the ECM plug to verify continuities. All signs point to bad MAF sensor. Amazon'ed one for a speedy fix and I'll pull a backup from the yard this weekend. Caffeine and Octane this Sunday. 

gumby
gumby GRM+ Memberand Reader
9/30/19 7:21 p.m.
maschinenbau said:

Thanks guys, it was an exhausting install especially in this bullE36 M3 southern 95 deg "fall" weather. Starting to miss the Midwest more and more.

You didn't miss anything this weekend weather wise. We had a late blast of 90's and humid for autoX yesterday.

maschinenbau
maschinenbau GRM+ Memberand SuperDork
10/2/19 5:18 p.m.

Dammit Amazon. Description said it fits all years of G35. Guess the 03-04 are different. This will have to wait until Saturday's junkyard run. Even the plug is different, so I can't even see if the code will go away.

maschinenbau
maschinenbau GRM+ Memberand SuperDork
10/5/19 9:50 a.m.

Junkyard MAF fixed it! Only one 03 on the lot that still had the sensor, so I got lucky. The 05-up is different. I'll order a new one as backup. The Challenge is way too close for comfort for E36 M3 like this to happen. 

Patrick
Patrick GRM+ Memberand MegaDork
10/7/19 2:04 p.m.

If you go for it all at 8:57 with nitrous and want to guarantee the most spectacular failure award, i found a .130 nitrous jet in my stuff, and the single nozzle efi kit charts stop at a .088 jet for +250hp.  Soooo +350?

Dusterbd13-michael
Dusterbd13-michael MegaDork
10/7/19 2:27 p.m.
Patrick said:

If you go for it all at 8:57 with nitrous and want to guarantee the most spectacular failure award, i found a .130 nitrous jet in my stuff, and the single nozzle efi kit charts stop at a .088 jet for +250hp.  Soooo +350?

Ill even donate the kitty litter and a broom!

Andy Neuman
Andy Neuman SuperDork
10/7/19 2:31 p.m.

In reply to Patrick :

According to the Jet calculator .130 will be a 750hp bump. 

Dusterbd13-michael
Dusterbd13-michael MegaDork
10/7/19 2:33 p.m.

9.xx!!!!

Imagine having the first datsun wagon in the 9s!!!!

java230
java230 UltraDork
10/7/19 3:08 p.m.

Please dont blow it up :*(

Robbie
Robbie GRM+ Memberand UltimaDork
10/7/19 3:23 p.m.
Dusterbd13-michael said:

9.xx!!!!

Imagine having the first datsun wagon in the 9s!!!!

Imagine having the first g35 drivetrain in the 9s - the wagon may only be about halfway down the track.

Patrick
Patrick GRM+ Memberand MegaDork
10/7/19 3:32 p.m.
Andy Neuman said:

In reply to Patrick :

According to the Jet calculator .130 will be a 750hp bump. 

I'm confused as to why i have this but now want to throw a 750 shot at a 305 and see if it holds for a quarter mile.

 

 

maschinenbau
maschinenbau GRM+ Memberand SuperDork
10/7/19 3:56 p.m.

In the interest of full disclosure, after my clean runs I was planning to jet 0.061 N / 0.040 F which should be a super rich 150 shot.

But I'm game for more if it survives that. I've had less fun for more money. 

eastsideTim
eastsideTim UberDork
10/7/19 4:02 p.m.
Patrick said:
Andy Neuman said:

In reply to Patrick :

According to the Jet calculator .130 will be a 750hp bump. 

I'm confused as to why i have this but now want to throw a 750 shot at a 305 and see if it holds for a quarter mile.

 

 

I had to go digging for this Hot Rod article that I vaguely remembered, but based on their experience, I’m thinking a 305 wouldn’t make it to the 60’ mark under power.

Patrick
Patrick GRM+ Memberand MegaDork
10/9/19 8:18 p.m.

Ok i looked, andy was off.  I have a 136 jet, which coupled with a 60 fuel on 55psi would deliver a 475 shot.  You're welcome to asplode it if you want, but then you'll have to come get my q45 for the v8

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