lid and new MAF, now slower?
lid and new MAF, now slower? 
i just installed my 85mm lid and slp MAF sensor and now my car feels held back...it just doesnt scream ......it still pulls hard but not like it did...but i also did a new clutch at the same time.. it seems to be fine..anyone have similar probs? my car is nearly bone stockjustin 99SS M6-bolt ons
Administrator
Joined: Jan 2002
Posts: 45,841
Likes: 5
From: Earth
Your bone stock car screams? My car feels slow as dirt to me. Anyway, give it some time for the computer to learn. If it doesn't get any better, I suggest going back to the stock MAF. I'm not sure why guys keep buying aftermarket MAF's anyway. The stock unit is perfectly fine and you really aren't going to see any gains by going with an aftermarket piece. Too many problems created by not using the stock MAF IMO.
Good luck!
Good luck!
TECH Fanatic
Joined: Aug 2003
Posts: 1,768
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From: Lexington, NC
Just go ahead and swith to the stock MAF, if you want to descreen it you can, and see how it does, if its slower put the other one back in there. You just have to play around with it man. Good Luck
Wes
Wes
ok guys i reset the ecm...and had to fabricate something to make up for that 10mm gap in my 85mm lid so that it would accept my stock maf again...ill let ya know how it goes...im gonna be pissed if i spent 150 bucks on a whorthless maf...thanks
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HOW did it work out so far?...i wouldve just gone back to stock induction wise and see how it does...then youll know if the clutch is making it feel different or not...then add either the lid or maf then whatevers left and see which part is making it hold back. Its really hard when you do a bunch of things at once to tell which one did bad.
lata
Bill
lata
Bill
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Verdad Gallardo Administrator
Joined: Jan 2002
Posts: 45,841
Likes: 5
From: Earth
fiv0killr- I would've driven a few hundred miles on with the 85mm MAF. Give the computer time to learn. Beat on the car pretty good during that time period too. I really don't like SOTP feel either. I like dyno numbers and better yet track times. SOTP can be deceiving sometimes. Example...my car feels really fast after a carwash, an oil change, or even with a full tank of gas. 
Originally Posted by unit213
Your bone stock car screams? My car feels slow as dirt to me. Anyway, give it some time for the computer to learn. If it doesn't get any better, I suggest going back to the stock MAF. I'm not sure why guys keep buying aftermarket MAF's anyway. The stock unit is perfectly fine and you really aren't going to see any gains by going with an aftermarket piece. Too many problems created by not using the stock MAF IMO.
Good luck!
Good luck!
with all the free and knowledgable (sp) info out there i always read up thoroughly on my mods before purchasing them. that way i dont buy, install, have trouble, and then ask questions.
Originally Posted by five0killr
i just installed my 85mm lid and slp MAF sensor and now my car feels held back...it just doesnt scream ......it still pulls hard but not like it did...but i also did a new clutch at the same time.. it seems to be fine..anyone have similar probs? my car is nearly bone stockjustin 99SS M6-bolt ons
I added the TSP 85mm kit to mine along with a Thunder ported TB. I drove for a few hundred miles then went to the track and lost 3 tenths and 3mph in better weather. I put my stock OEM SLP lid back on with the stock MAF and I will be going to the track Sat. to see if I gained anything back. I'll put the SLP MAF back on when I get dyno tuned. I think it will be fine once properly tuned. Otherwise, there crap.
Staging Lane
Joined: Oct 2003
Posts: 70
Likes: 0
Originally Posted by unit213
fiv0killr- I would've driven a few hundred miles on with the 85mm MAF. Give the computer time to learn. Beat on the car pretty good during that time period too. I really don't like SOTP feel either. I like dyno numbers and better yet track times. SOTP can be deceiving sometimes. Example...my car feels really fast after a carwash, an oil change, or even with a full tank of gas.
You have to get it tuned with the new MAF. You maybe running richer by the pcm thinking it is seeing more air and adding more fuel. My 85mm MAF was reading 16 grams of air at ilde I then put the stock unported maf on and it read 12 grams and the idle speed was the same for both.