Help with Maggie tune/problems
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,070
Likes: 0
From: greensboro NC
Problems
Originally Posted by RED99
Oh by the way guys! I got me a 90mm TB housing from Magnacharger today. So anyone that is interested, you might get lucky now.
M_T_O, any problems running (tunning) that SLP MAF? I should be putting my Maggie on next week...................finally.
M_T_O, any problems running (tunning) that SLP MAF? I should be putting my Maggie on next week...................finally.
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,070
Likes: 0
From: greensboro NC
Problems
Originally Posted by M_T_0
working his @$$ off to pay for all the mods and a new pass side axle lol
I'm running a slp maf and a ported TB as well as the blackwing.
you are pulling 3" of water or Hg at the top end?
3" of water is not much of a vacuum, only like 0.1psi, 1.5psi if you are talking Hg. are you seeing any knock retard?, what are your valve springs? at 10psi the ls1 springs will give you a problem.
I would log my KR,IAT's, and look for belt slip, you are showing a good improvment by replacing the MAF but you may have some valve float going on at peak boost.
oh yea remove the blinking screen.
I'm showing more tq than hp also and the more you up the drive ratio the more your tq will exceed your hp unless you clean up the intake further. keep in ming that your TB is onlt 75mm so even putting in the 85mm maf will only move the restriction further up the intake. check your airfilter also.
More Than Zero
I'm running a slp maf and a ported TB as well as the blackwing.
you are pulling 3" of water or Hg at the top end?
3" of water is not much of a vacuum, only like 0.1psi, 1.5psi if you are talking Hg. are you seeing any knock retard?, what are your valve springs? at 10psi the ls1 springs will give you a problem.
I would log my KR,IAT's, and look for belt slip, you are showing a good improvment by replacing the MAF but you may have some valve float going on at peak boost.
oh yea remove the blinking screen.
I'm showing more tq than hp also and the more you up the drive ratio the more your tq will exceed your hp unless you clean up the intake further. keep in ming that your TB is onlt 75mm so even putting in the 85mm maf will only move the restriction further up the intake. check your airfilter also.
More Than Zero
Melting Slicks
Joined: Mar 2005
Posts: 2,252
Likes: 181
From: NE OH
Mike is there any way you can have the tuner post a copy of the run log(s) so we can see timing, KR, etc.?
Looking at the dyno chart, the runs that dip into the 10.ish AFR range aren't helping your torque/hp numbers.
Any chance you have clogged cats, or valve train adjustment issues? Anything that would prevent the air from leaving.
Looking at the dyno chart, the runs that dip into the 10.ish AFR range aren't helping your torque/hp numbers.
Any chance you have clogged cats, or valve train adjustment issues? Anything that would prevent the air from leaving.
Safety Car
Joined: Jul 2005
Posts: 4,275
Likes: 4
From: Vancouver WA
Originally Posted by BigLew
So Red what did you pay for the new housing and what TB are you running??
It was $343 shipped to me, and that is with a gasket (O-ring) for the TB. I had a LS2 TB I am going to use. Everybody claims they are easy to tune, so I went with it. And you can get a new one for under $250
Now I just need a MAF that will match the air-flow. Which Big Lew, I have a feeling that is why you are getting your vacuum! I think you need to either descreen your MAF, or do away with it and go SD full time. Does anyone know the CMF airflow of a screened MAF vs descreened?
Last edited by RED99; Jun 9, 2006 at 07:12 PM.
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,070
Likes: 0
From: greensboro NC
More Problems
You guys won't believe the latest. Replaced everything forward of the blower to elimante any restrictions(vacumn) Now the pulley hits the 8 rib system. Any fix?? I'm hoping I'm done with issues 
Safety Car
Joined: Jul 2005
Posts: 4,275
Likes: 4
From: Vancouver WA
Originally Posted by BigLew
You guys won't believe the latest. Replaced everything forward of the blower to elimante any restrictions(vacumn) Now the pulley hits the 8 rib system. Any fix?? I'm hoping I'm done with issues
I sent you a PM Big Lew. Let me know if that was your problem.
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Racer
Joined: Jun 2005
Posts: 395
Likes: 32
From: Kailua Kona Hawaii
Hey Red, you will love the 90 mm inlet and throttle body. My set-up has the 90 mm inlet and LS2 throttle body. Last week we made 517 rwhp on the Z06 at A&A with the 3.5 pulley on a stock bottom. Your set-up should hoepfully make more. Good luck!
