why 90mm TB when 85mm MAF?
Thread Starter
TECH Resident
Joined: Jun 2003
Posts: 862
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From: Los Angeles, CA
why 90mm TB when 85mm MAF? the largest (somewhat) compatible MAF i know of is the 85mm.
and even then, there is crap in the middle of it that doesnt help flow.
so how can a 90mm TB flow more than a 78mm TB
when they are both restricted by a 85mm MAF with junk in the middle?
have people tested the difference?
is it worth it?
is it possible to run without the MAF or use something else?
and even then, there is crap in the middle of it that doesnt help flow.
so how can a 90mm TB flow more than a 78mm TB
when they are both restricted by a 85mm MAF with junk in the middle?
have people tested the difference?
is it worth it?
is it possible to run without the MAF or use something else?
TECH Addict
Joined: Feb 2004
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SD mode=awesome. I have been arguing that same point for a long time. The worst part is, even if you had a 90mm MAF, it would still be a restriction with a 90mm TB. Plus all the 90mm TBs have a lot of issues. I have been running SD for awhile with no problems on my car. Excellent flow in the intake.
TECH Fanatic
Joined: Dec 2001
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From: MI
Originally Posted by Another_User
SD mode=awesome. I have been arguing that same point for a long time. The worst part is, even if you had a 90mm MAF, it would still be a restriction with a 90mm TB. Plus all the 90mm TBs have a lot of issues. I have been running SD for awhile with no problems on my car. Excellent flow in the intake.
TECH Addict
Joined: Feb 2004
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Originally Posted by smokin' joe 00 ss
I'm really interested in this SD tune what's it take to go this route?
On The Tree
Joined: Dec 2004
Posts: 151
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From: San Diego, CA
Another_User, can you confirm if altitude changes will mess with a speed density tune? I've seen a lot about it, but don't really understand it, and am barely grasping tuning now. I want to know because over the course of a year and with my road trips, altitudes can change from +10K to sea level, and from near 0 degrees to over 100 degrees. FWIW, I did search for altitude+speed+density.
TECH Addict
Joined: Feb 2004
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Originally Posted by leaftye
Another_User, can you confirm if altitude changes will mess with a speed density tune? I've seen a lot about it, but don't really understand it, and am barely grasping tuning now. I want to know because over the course of a year and with my road trips, altitudes can change from +10K to sea level, and from near 0 degrees to over 100 degrees. FWIW, I did search for altitude+speed+density.
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Verdad Gallardo TECH Addict
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Originally Posted by leaftye
I suppose I can try it, but it'll take me a few weeks tho....I have to mail my cable back to HPTuners to swap for the wideband cable...and need a wideband too.
