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Discussion Starter · #1 ·
In torn to which one i should get and which one is more "appropriate" for my needs.
Mods in signature (soon to add Powerbond 25%UDP) but don't see myself going past that anytime soon. Possibly a Rick Crawford intake/polish TB.

Which one to get, a 90mm/LS3 MAF or 102mm/LS7 MAF?


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the larger housing will do nothing more than lower your resolution for tuning at idle... i know that was my problem with this card on my turbo cobalt (they use the same LS7 card stock)
 

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Yeah, I'm sorry. I understand now that they are the same card.

What would be more practical, 102mm or 90mm?




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I just bought the 102mm because I also just bought the 102 intake/tb combo plus I have heads and a good size cam and etc. But you could always go 102mm now just incase you want more mods later. I thought I was done and few months later got the itch again.
 

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Yeah, I'm sorry. I understand now that they are the same card.

What would be more practical, 102mm or 90mm?




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For your mods, I would say the 90mm. I think you would lose velocity going with the 102. I want to say I read someone else's post about losing power going with the 102 on a mild motor.


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Discussion Starter · #9 ·
For your mods, I would say the 90mm. I think you would lose velocity going with the 102. I want to say I read someone else's post about losing power going with the 102 on a mild motor.


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That's what I figured. Thanks man.


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That's all pure speculation. I read that also in the origional reckart thread. But it was one person who mentioned it and it was purely his opinion. I have the 102mm and mine made great power and feels amazing.
 

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Discussion Starter · #11 ·
That's all pure speculation. I read that also in the origional reckart thread. But it was one person who mentioned it and it was purely his opinion. I have the 102mm and mine made great power and feels amazing.
But you also have a modified intake and polished TB.
Im not there yet and probably wont go that route.
 

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Discussion Starter · #12 ·
From what I understand the ls3 and ls7 is the same card (ACDelco-213-4222) and they use the same adapter wiring harness.
So i ordered the LS3 MAF card and the Spectre 9705 MAF 4" housing to bot up to my Rotofab.
Am I missing anything? Do I need additional couplers?


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u might need one 4"
 

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Ya I had that and couldn't figure it out to save my life


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You might want to get a honeycomb air straightener, this will help with the idle. This is what I got http://www.saxonpc.com/100mm-cells-for-100.html. The 5:1 and 100mm, I had to round the honeycomb a little to get it to fit and will put some JB weld on the edges to hold it in place.
 

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With a quality tune the idle is just fine. I questioned about that honeycomb at first but the general consensus from the experts was they don't use it and its not needed.

Joey,
The install is very easy and straight forward. With vararam all you need is 2 4" silicone couplers. Most of them are sold in 3" lengths... I trimmed mine down to just shy of 2" each for a perfect fit. Then just swap the black and pink wires on the harness with a small screw driver and your done. BUT, a tune is 100% a must IMMEDIATLY. So do the swap when your with your tuner unless you have a remote tuning setup.
 
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