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Discussion Starter #1
Lol,sorry to flood you guys lately with all these ?s,I tried searching but find so much different info ..
So I will just ask you experts..
So now I plan on a 90mm lmafs upgrade for my 98 lsc, which is the best year mafs to use? Are they all 6 pin with the integrated iat? If so DO I HAVE to repin my iat into that mafs or can I still run my 4 pin harness and leave my iat wired into stock location? Oooorrrrrr is there a year that is a 4pin? I also don't want the slot style,what ever year that is..
Please fill me in guys .
I plan on using it in conjunction with 42lb injectors,my exhaust ,upgraded intake cams and it will get a custom tune..
 

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You dont have re pin the stock one if you get the plug, I got one off of amazon from Michigan Motorsports. Youll have to find the the schematics to wire it in. I still have to do that my self actually.
 

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What is a lmafs?
 

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Mark VIIIs have the MAF buried in the airbox with an external inline connector on the outside of the box, The MAF connector inside it should be the 6 pin with the outer pins closed off like on MN12s. The Lightning MAF only came in two flavors, 80mm and 90mm, no differences between sensor elements, and none with IAT integrated.
 

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I'm not sure if a stock Mark VIII intake tube will cleanly except the 90 mm maf. I briefly used a 2003 cobra intake tube when running my oval throttle body and lighting maf.

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CORRECTION- the 03 cobra intake tube would not be correct for the Mark VIII throttle body position. The 97/98 Marks use a throttle body that sits at a 90 degree position to the engine. It is the 03 cobras, 2 valve bullitts, and SVO intakes that are at an angle.
 

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Discussion Starter #6
I think it should fit ok. The stock airtube actually is too big if you remove the stock mafs from the airbox..so hopefully the 90 will cram in,if not..egh I will make an intake
 

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Be sure to put a Blendercharger in front of your lmafs and do the air silencer delete for maximum benefit!

The throughput of the reciprocating blades when switched to HI are on par with the best turbos.

<img src=http://members.tccoa.com/bigscott/Cougie/Acme_MAF2.jpg>

There's also the Torocharger. I went that route.

Man, you really can do better! Guaranteed 100+ hp gains!

Here's a picture of my set up.

 

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I think it should fit ok. The stock airtube actually is too big if you remove the stock mafs from the airbox..so hopefully the 90 will cram in,if not..egh I will make an intake
The tube inlet is too big for even the 90mm, I tried it. There's about a 1/4" gap all the way around. You could probably use a small slice of a silicone coupler to fill the gap.
 

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Discussion Starter #9
I think it should fit ok. The stock airtube actually is too big if you remove the stock mafs from the airbox..so hopefully the 90 will cram in,if not..egh I will make an intake
The tube inlet is too big for even the 90mm, I tried it. There's about a 1/4" gap all the way around. You could probably use a small slice of a silicone coupler to fill the gap.
I figured...that's ok..
 

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Discussion Starter #10
Be sure to put a Blendercharger in front of your lmafs and do the air silencer delete for maximum benefit!

The throughput of the reciprocating blades when switched to HI are on par with the best turbos.

<img src=http://members.tccoa.com/bigscott/Cougie/Acme_MAF2.jpg>

There's also the Torocharger. I went that route.

Man, you really can do better! Guaranteed 100+ hp gains!

Here's a picture of my set up.

Lol,ya???? 20hp more if the toro was flipped to draw the air in from below .
 

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The tube inlet is too big for even the 90mm, I tried it. There's about a 1/4" gap all the way around. You could probably use a small slice of a silicone coupler to fill the gap.
I used a large onion ring and cheez wiz to seal the gap.
 

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I used a large onion ring and cheez wiz to seal the gap.
I used that mod for a while, but the car got to where it wanted Tabasco in the gas, or it wouldn't run right. :zdunno:

After I found the TacoBell wrappers clogging the air filter, I completely replaced it, and I much happier. :zsoapbox:

This one came off a hearse; it's better, but it seems to make the engine rattle a bit when the mother-in-law is around... nft.
 

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Discussion Starter #13
90mm mafs and cone filter adapter ordered..
I was looking at these 90 degree bend cone filters...would it mess up the airflow onto the mafs filaments ? If so I will just run a filter direct on it and make a coldair box.
Reason I want that filter is i can cut the stock opening under the stock airbox and run the filter strait down into the bumper area..
 

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Keeping the filter in the bay and making a box is definitely the easier way to go. I have also see it advised that you not connect the filter directly to the maf. If you use a short section of tube in between the filter and the maf, it will help the air travel straight through the sensor.

But if you do want to try moving your filter to the wheel well- this is how I did mine. I just did it with steel exhaust tubing so I could could glue it with an available MIG welder.

It also helped that I didn’t have to work around any a/c lines.

I know that you already ordered your stuff, but I thought that one of the bigger issues with using the 90 mm maf was needing to do everything in 4” tube. Depending how you make it, 3 1/2” is a bit easier to lay out.
 

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Discussion Starter #18
Nice cai,
Ive made and ran a few like that my self..I always use plastic so it doesn't heat soak as much
 

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Personally, I would get the car running with all the new parts before selling the old parts. Then, if something doesn't work right, you can swap back to keep the car running.

And those "cold air" intakes protruding below the car are one puddle away from a bad situation. They have got to get a lot of road dirt on them.

Al
 

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And those "cold air" intakes protruding below the car are one puddle away from a bad situation. They have got to get a lot of road dirt on them.

Al
I agree that puddles and rain could be an issue when running your filter in the fender. I plan on my car being used as only a fair weather car. As for road dirt, with the inner fender installed, I don't think it should get too dirty. But for me, the car will only see 5,000 to 10,000 miles a year in a good year, so if I need to change the filter every 2 to 3 years, I'm ok with that.

Also with cone filters- mine is a dry filter. I had a bad incident by over-oiling a K&N cone when I was 16 that ended up wasting a $500 tune session because there was so much oil on the MAF. Now I will only run dry filters. That one is an AEM.
 
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