porting maf ends
09-13-2002 | 03:11 AM
#1
Thread Starter
Registered User
Joined: Sep 2002
Posts: 1,419
From: Coquitlam, British Columbia
porting maf ends
In the works of porting my maf ends because my broke *** can't afford aftermarket parts for now. Question, can I get rid of the honeycomb screen that comes from the factory? Also is this porting thing a really good idea or am I just making thigs worse or wasting my time? Thank you in advance for giving me all the info you can.......
09-13-2002 | 09:28 AM
#2
Registered User
Joined: Aug 2000
Posts: 1,902
From: Houston, Tx USA
You are going to see posts from both sides.. Some people had problems other didnt.. the screen is commonly removed as the aftermarket units do not have them.
If I do get a different MAF I think I would get the SLP or Z06 unit. Definately not the Granatelli(sp?) since so many people are having issues with them. other places make the ends and that may be an option for ya.. I would suggest saving the screen as many say they may want to keep it like stock for some reason or another.
IMO I would want one with a recalibrated unit so that its already adjusted for higher flows.
Hope this helps some..
------------------
Psycho Cabbage
2002 Camaro Z28
(6 sp) Bone stock
Webmaster for RaceHer.com
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by the prěcking of my thumb, something wicked this way comes
-Traded in- 1995 Camaro Z28 (A4 (#6 I might add!),ES tranny mount and torque arm bushing,SLP CAI,ASP 34% Underdrive,Strange 3.73's (shredded Auburn),1LE alum driveshaft & intake elbow,Yokohamas AVS Intermediates,160-stat,MAF screen removed, HPP+(for shift points only),Borla Y-pipe, Flowmaster Force-II catback, Gutted Cat, Airlift Airbag, !TB Bypass, J&M LCA's, Bosch Platinums, Moroso BlueMax Wires, Free RamAir, Meziere Electric H2O pump, MAC 3point STB, BMR Panhard, SCR SFC's
Just installed:Nu-tek Heads (mild port) and Comp Cams 1.6RR's! New track and dyno #'s to follow!
best 13.44 @103.26
0-60ft 1.96
270 RWHP/296 RWTQ
0-60MPH 4.8sec
1987 Porsche 944S (waiting on LT1 mod)
If I do get a different MAF I think I would get the SLP or Z06 unit. Definately not the Granatelli(sp?) since so many people are having issues with them. other places make the ends and that may be an option for ya.. I would suggest saving the screen as many say they may want to keep it like stock for some reason or another.
IMO I would want one with a recalibrated unit so that its already adjusted for higher flows.
Hope this helps some..
------------------
Psycho Cabbage
2002 Camaro Z28
(6 sp) Bone stock
Webmaster for RaceHer.com
Check out the current polls and vote!
by the prěcking of my thumb, something wicked this way comes
-Traded in- 1995 Camaro Z28 (A4 (#6 I might add!),ES tranny mount and torque arm bushing,SLP CAI,ASP 34% Underdrive,Strange 3.73's (shredded Auburn),1LE alum driveshaft & intake elbow,Yokohamas AVS Intermediates,160-stat,MAF screen removed, HPP+(for shift points only),Borla Y-pipe, Flowmaster Force-II catback, Gutted Cat, Airlift Airbag, !TB Bypass, J&M LCA's, Bosch Platinums, Moroso BlueMax Wires, Free RamAir, Meziere Electric H2O pump, MAC 3point STB, BMR Panhard, SCR SFC's
Just installed:Nu-tek Heads (mild port) and Comp Cams 1.6RR's! New track and dyno #'s to follow!
best 13.44 @103.26
0-60ft 1.96
270 RWHP/296 RWTQ
0-60MPH 4.8sec
1987 Porsche 944S (waiting on LT1 mod)
09-13-2002 | 10:19 AM
#3
Registered User
Joined: May 2001
Posts: 1,122
From: Memphis, TN, USA
Every car is different. From my experience, however, there seems to be a pattern.
If your car dynoed 290 RWHP or under when it was bone stock, then the MAF ends probably won't cause any problems.
However, if you dynoed over 290, then you may have some problems (mainly pinging)
If you're going to port/polish, do what I did ... find someone who bought aftermarket ends and then buy their OEM ends from them. That way you will have an original set of MAF ends to go back to in case your car doesn't like the port/polish.
My 2001 Z28 did quite well with the port/polish, even with the Hypertech programmer.
The 2001 WS6, however, can't run ported ends without detonation. It also doesn't like the Hypertech programmer. After a day with AutoTap, we found that the car runs much better without the programmer.
------------------
2001 TransAm WS6, M6 3.42
HPP, TBB, 160* t-stat, MTI Lid, Holley PowerShot, Flowmaster 80, Port/Polish MAF, !CAGS
www.BlackWS6.com
2001 Z28
-- R.I.P. - 06/25/02
If your car dynoed 290 RWHP or under when it was bone stock, then the MAF ends probably won't cause any problems.
However, if you dynoed over 290, then you may have some problems (mainly pinging)
If you're going to port/polish, do what I did ... find someone who bought aftermarket ends and then buy their OEM ends from them. That way you will have an original set of MAF ends to go back to in case your car doesn't like the port/polish.
My 2001 Z28 did quite well with the port/polish, even with the Hypertech programmer.
The 2001 WS6, however, can't run ported ends without detonation. It also doesn't like the Hypertech programmer. After a day with AutoTap, we found that the car runs much better without the programmer.
------------------
2001 TransAm WS6, M6 3.42
HPP, TBB, 160* t-stat, MTI Lid, Holley PowerShot, Flowmaster 80, Port/Polish MAF, !CAGS
www.BlackWS6.com
2001 Z28
-- R.I.P. - 06/25/02
09-14-2002 | 05:07 PM
#4
Registered User
Joined: Dec 2001
Posts: 511
From: Soon to be Pensacola
This may sound strange and a little off subject, but I would like to try porting and polishing while leaving the MAF screen intact.
I took my screen out, then ported and polished. This caused the car to have detonation from hell along with a severely wandering idle. The flow straighteners might have allowed the electronics to read more accurately which is thier purpose in the first place.
Just a thought
Dave
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I took my screen out, then ported and polished. This caused the car to have detonation from hell along with a severely wandering idle. The flow straighteners might have allowed the electronics to read more accurately which is thier purpose in the first place.
Just a thought
Dave
------------------
09-14-2002 | 05:14 PM
#5
Registered User
Joined: Oct 2001
Posts: 390
From: Corpus Christi, Texas, US
I think your getting detonation b/c of the port and polish maf ends. I know it is a problem in some cars. from what i have seen 99 and down cars react better b/c of their cam profile. So i would leave it alone unless you get a cam, then you can do the trhottle body too, and probably step up to the 80mm from SLP. Unless you have auto tap and a maft i would leave them alone.
------------------
'02 Red Z28, ebony leather, M6, T-tops, Trac. cont., hurst shifter
Borla (the expensive cut-out), Wisperlid W/K&N, FRA, Cags eliminator, Strange 4.10's, G2 Rear Girdle, Valv. Synthetic 10W-30, Redline gear oil, Fat hurst shift ****, Lead foot
Soon to be:
Alpine Screen, Orion xtr 800.4, xtrpro 1000, Kicker 12L7 in a milhouse, Focal polykev K2's, Focal utopia 6" audiom midrange.
------------------
'02 Red Z28, ebony leather, M6, T-tops, Trac. cont., hurst shifter
Borla (the expensive cut-out), Wisperlid W/K&N, FRA, Cags eliminator, Strange 4.10's, G2 Rear Girdle, Valv. Synthetic 10W-30, Redline gear oil, Fat hurst shift ****, Lead foot
Soon to be:
Alpine Screen, Orion xtr 800.4, xtrpro 1000, Kicker 12L7 in a milhouse, Focal polykev K2's, Focal utopia 6" audiom midrange.
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