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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 01-06-2010, 11:39 PM   #11
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it would actually be better for you if you go with the L26 upper. The opening is 75mm
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Old 01-07-2010, 12:28 AM   #12
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I am amazed that Bill mentioned a proper signature has no plugs or wires. It'* awesome, but I haven't thought about it yet. Nice work.

On the L67 TB, do you have all the proper info on what to block off with JB weld? There are some things to change when you put an L67 TB on an L36 UIM. It would cost less than $10 in epoxy putty. Also with such a seal, you could port your L36 UIIM to 75mm or even larger if you really want to. No need to go aluminum if you aren't worried about cracks. Those cracks don't happen early anyway.
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Old 01-07-2010, 07:43 AM   #13
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Why try to port thin wall plastic, when there was an L26 upper in the JY by him?
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Old 01-07-2010, 04:48 PM   #14
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Good point. I'm just trying not to be an L26 UIM evangelist.
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Old 01-10-2010, 08:50 PM   #15
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how about a LT1 Maf could I use that?
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Old 01-10-2010, 09:34 PM   #16
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The LQ4 is a truck MAF sensor from an engine of the same displacement. The thing is, you basically need the standard GM wire set for a MAF sensor, and then you can solder the wires to your own 3800/LS1/whatever style connector you want.

I found an LS1tech.com thread on something kind of like what you want to do. Some guy took the LQ4 MAF sensor and wanted it to work with his LT1. So there'* a pinout on how to get the LQ4 sensor to work on an LT1. Then you have to follow that to see the LT1 pinout and make it work on your 3800 sensor. A bit of a stretch unless you read it and get it right away. I know things I write can be confusing sometimes, so let me know if I need to clarify something. And in case just reading the thread from the link helps, here you go:
http://www.ls1tech.com/forums/pcm-di...pter-help.html
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Old 01-10-2010, 10:18 PM   #17
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looks easy to adapt so can I put it in line from my air box to the TB.
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Old 01-10-2010, 10:19 PM   #18
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Sure, you can use an external MAF even with no throttle body if you're up for it. Please use a throttle body though.
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Old 01-10-2010, 10:27 PM   #19
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You're an odd man rad. So if I pick this LT1 MAF and block off the maf hole on my TB then tune I'm good.
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Old 01-11-2010, 09:04 AM   #20
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Yes..

You'll want to program in the new maf table before putting it on..and do it. Most guys find the LQ4 (of the same displacement are you nuts Rad) from a 5.3/6.0 truck, vette etc to work great, and they are cheap on ebay. An LS1 will also work. Shouldn't be any reason why you can't be that little bit different.
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