# Q45 Maf - am I going to run rich at 9.5psi **URL:** \ **Category:** SON240sx Automotive\ **Created:** [October 7, 2005, 6:40am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248 "2005-10-07T06:40:46Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [October 7, 2005, 6:40am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/1 "2005-10-07T06:40:46Z")
that is my question. I want to cluck the thing in, I have a maf from a SOCH at the moment what difference will I notice and will i have any problems ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [October 7, 2005, 6:50am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/2 "2005-10-07T06:50:59Z")
You’re going to have problems at idle and very low flow numbers, since the mafs is registering less than 1% total flow it isn’t very accurate. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [October 7, 2005, 6:52am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/3 "2005-10-07T06:52:53Z")
I see I see, to much of a problem??? and will it make any other difference to my car, like I do not know hahah good differences?? or not untill I get the go fast bits in?? I want to follow your Steps to 300WHP ---
**Author:** ![s14\_2Nv](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s14_2nv/32/5476_2.png) [@s14\_2Nv](https://forums.speedlife.net/u/s14_2Nv)\ **Post date:** [October 7, 2005, 7:17am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/4 "2005-10-07T07:17:34Z")
Do you have any engine management? It’s not just plug and play. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [October 7, 2005, 8:09am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/5 "2005-10-07T08:09:27Z")
You know I do not yet. I want to also get an safc ---
**Author:** ![s14\_2Nv](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s14_2nv/32/5476_2.png) [@s14\_2Nv](https://forums.speedlife.net/u/s14_2Nv)\ **Post date:** [October 7, 2005, 8:36am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/6 "2005-10-07T08:36:33Z")
Get it before you put the maf on, but after you finish paying me. :evil: ---
**Author:** ![Happy240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/happy240sx/32/5515_2.png) [@Happy240sx](https://forums.speedlife.net/u/Happy240sx)\ **Post date:** [October 7, 2005, 9:17am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/7 "2005-10-07T09:17:14Z")
If you are going SAFC – I would not suggest a Q45 maf … I would suggest the more common Z32 MAF ---
**Author:** ![Sasha\_SG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sasha_sg/32/5477_2.png) [@Sasha\_SG](https://forums.speedlife.net/u/Sasha_SG)\ **Post date:** [October 7, 2005, 9:34am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/8 "2005-10-07T09:34:13Z")
Z32 mafs is tuned for stable idle while still reading high airflow numbers, Z32 is better in almost all cases except maybe cost. You shouldn’t have too many problems with Q45 mafs so long as your s-afc is tuned well. You need an S-AFC to run the Q45 mafs, you could run larger injectors but the car would be so off from an AFR standpoint that i’d be surprised if you even made more power at all. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [October 7, 2005, 9:42am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/9 "2005-10-07T09:42:45Z")
ok, well I was only going to run it becasue it is free for a while, Maybe Ill take it and then not install it untill next year with a Safc2/t28/ and 550’s ---
**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\ **Post date:** [October 7, 2005, 11:11am UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/10 "2005-10-07T11:11:03Z")
I’ll buy your Q45 maf if the price is right ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [October 7, 2005, 12:58pm UTC](https://forums.speedlife.net/t/q45-maf-am-i-going-to-run-rich-at-9-5psi/89248/11 "2005-10-07T12:58:27Z")
It is not mine, A friend just said I could use it for a while if I needed it