Can i Bring MAF closer to intake manifold?? - Toyota Yaris Forums

marcus · 07-11-2011, 05:17 PM

thinking of cutting my air intake and bring the maf closer to the intake manifold...of course only due to bigger and longer cone filter.. would this cause issue starting car or maf reading air mixture??....anyone?? thanks!

KSIbucky · 07-11-2011, 07:12 PM

It's no big deal but if your trying to go faster leave it where its. Thats the sweet spot. Why do you want to cut your intake? Is it your stock intake? If so then why buy a new one. There fun to install and they look cool and they work great.

WeeYari · 07-11-2011, 07:15 PM

^ He's running a PRM Short Ram. Same one I have as can be seen in my garage.

I have seen someone with a setup that has the MAF sitting very, very close to the throttle body. I don't think you'll have an issue, but why do you want to do it? Also, with the vaccum nipple sitting right beside the TB coupler, there is no pipe really available to cut to make it shorter. Only thing you can do is cut a section out of the middle and splice it back together. And again, why? What is wrong with the existing PRM filter?

marcus · 07-11-2011, 07:59 PM

Quote:

Originally Posted by WeeYari

^ He's running a PRM Short Ram. Same one I have as can be seen in my garage.

I have seen someone with a setup that has the MAF sitting very, very close to the throttle body. I don't think you'll have an issue, but why do you want to do it? Also, with the vaccum nipple sitting right beside the TB coupler, there is no pipe really available to cut to make it shorter. Only thing you can do is cut a section out of the middle and splice it back together. And again, why? What is wrong with the existing PRM filter?

thinking of switching to a larger cone wont fit unless i cut on the throttle part of the intake which will make the maf closer to the manifold..but i read somewhere that this does slow you down..??

KSIbucky · 07-12-2011, 11:35 AM

A larger cone wont improve performance by much .009 hp

WeeYari · 07-12-2011, 11:54 AM

I was at a dyno session where, using the same tube, the PRM filter was compared to an AEM cone filter. PRM made more power.

malibuguy · 07-12-2011, 12:52 PM

^ does the PRM make the most power intake?

what am i saying...i'll just fab up my own intake when i feel like it

Cap · 07-13-2011, 09:24 PM

Intakes are not about More Air Flow to make 'Power'.

Intakes work so well because the 'Incorrect Placement' of the MAF in the Intake Messes with the ECU's Calculations and Causes it to Accidently give you more Ignition Advance..

Another Side Effect of the Incorrect Air Flow Calculation is the ECU is Forced to Correct the Fuel Mixture by adding to the Long Term Fuel Trim.. and the WOT will be leaner ( Motors are Usually too Rich a WOT and Need a little Fuel Pulled.. For the Cat )..

Cap

marcus · 07-13-2011, 10:51 PM

i guess im keeping the set up..its more complex than i thought...now on to the next project..

samuraivince · 10-17-2011, 08:48 PM

what if you sneak in more air after the MAF senor? would that do anything?

Yury · 10-17-2011, 09:10 PM

^ a man made vacuum leak...interesting :)

YarisSedan · 10-17-2011, 09:15 PM

Quote:

Originally Posted by samuraivince

what if you sneak in more air after the MAF senor? would that do anything?

Will set a check engine light for system too lean bank 1.

samuraivince · 10-17-2011, 09:29 PM

i see, thats out of the ? then...... thanks!

07-11-2011, 05:17 PM	#1
marcus toyota View User's Garage Drives: 2007 Yaris RS Blazed Join Date: Oct 2006 Location: toronto, canada Posts: 3,637	Can i Bring MAF closer to intake manifold?? thinking of cutting my air intake and bring the maf closer to the intake manifold...of course only due to bigger and longer cone filter.. would this cause issue starting car or maf reading air mixture??....anyone?? thanks! __________________ If my calculations are correct, when this baby hits eighty-eight miles per hour... you're gonna see some serious shit!!!!!! "Horsepower is how fast you hit the object. Torque is how far you move that object.."

07-11-2011, 07:12 PM	#2
KSIbucky View User's Garage Drives: 2007 Yaris manual dark silver Join Date: May 2006 Location: Fond du Lac, WI Posts: 694	It's no big deal but if your trying to go faster leave it where its. Thats the sweet spot. Why do you want to cut your intake? Is it your stock intake? If so then why buy a new one. There fun to install and they look cool and they work great. __________________ 7 Color Tach Fujita Intake Momo pedals Shift knob and boot. Full TRD SSK. Blitz exhaust Megan Lowering Springs (Next is DC Header)

07-11-2011, 07:15 PM	#3
WeeYari View User's Garage Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008 Location: Georgetown, Ontario, Canada Posts: 5,740	^ He's running a PRM Short Ram. Same one I have as can be seen in my garage. I have seen someone with a setup that has the MAF sitting very, very close to the throttle body. I don't think you'll have an issue, but why do you want to do it? Also, with the vaccum nipple sitting right beside the TB coupler, there is no pipe really available to cut to make it shorter. Only thing you can do is cut a section out of the middle and splice it back together. And again, why? What is wrong with the existing PRM filter? __________________

07-12-2011, 11:35 AM	#5
KSIbucky View User's Garage Drives: 2007 Yaris manual dark silver Join Date: May 2006 Location: Fond du Lac, WI Posts: 694	A larger cone wont improve performance by much .009 hp __________________ 7 Color Tach Fujita Intake Momo pedals Shift knob and boot. Full TRD SSK. Blitz exhaust Megan Lowering Springs (Next is DC Header)

07-12-2011, 11:54 AM	#6
WeeYari View User's Garage Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008 Location: Georgetown, Ontario, Canada Posts: 5,740	I was at a dyno session where, using the same tube, the PRM filter was compared to an AEM cone filter. PRM made more power. __________________

07-12-2011, 12:52 PM	#7
malibuguy Obsessed with 1.5L Drives: '10 PW Yaris Sedan Join Date: Feb 2011 Location: Westminster, MD Posts: 907	^ does the PRM make the most power intake? what am i saying...i'll just fab up my own intake when i feel like it __________________ -Greg...the Exhaust Freak. -10 PW sedan 107whp/110wtq, full exhaust, suspension bits, TRD LSD -06 Highlander 3mzfe Limited AWD -82 Malibu, 1uzfe swap -97 Tercel coupe, 1nzfe/4.31 -96 Tercel coupe, Turbo 5efe, autoX -96 Tercel 4dr

07-13-2011, 09:24 PM	#8
Cap Drives: Toyota Join Date: Jun 2009 Location: California Coast Posts: 4	Intakes are not about More Air Flow to make 'Power'. Intakes work so well because the 'Incorrect Placement' of the MAF in the Intake Messes with the ECU's Calculations and Causes it to Accidently give you more Ignition Advance.. Another Side Effect of the Incorrect Air Flow Calculation is the ECU is Forced to Correct the Fuel Mixture by adding to the Long Term Fuel Trim.. and the WOT will be leaner ( Motors are Usually too Rich a WOT and Need a little Fuel Pulled.. For the Cat ).. Cap

07-13-2011, 10:51 PM	#9
marcus toyota View User's Garage Drives: 2007 Yaris RS Blazed Join Date: Oct 2006 Location: toronto, canada Posts: 3,637	i guess im keeping the set up..its more complex than i thought...now on to the next project.. __________________ If my calculations are correct, when this baby hits eighty-eight miles per hour... you're gonna see some serious shit!!!!!! "Horsepower is how fast you hit the object. Torque is how far you move that object.."

10-17-2011, 08:48 PM	#10
samuraivince Drives: 08 Yaris hatchback Join Date: Oct 2011 Location: Detroit, Michigan Posts: 39	what if you sneak in more air after the MAF senor? would that do anything?

10-17-2011, 09:10 PM	#11
Yury Drives: 2008 5 Door Liftback Auto Join Date: Oct 2011 Location: Canada Posts: 157	^ a man made vacuum leak...interesting :) __________________ 1999 Honda Prelude Base 5 speed (summer driver) 2008 5 Door Liftback Auto

10-17-2011, 09:29 PM	#13
samuraivince Drives: 08 Yaris hatchback Join Date: Oct 2011 Location: Detroit, Michigan Posts: 39	i see, thats out of the ? then...... thanks!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Custom Intake Manifold + Direct Port Nitrous	blacksandiegovitz	Performance Modifications	9	04-21-2010 07:05 PM
Yaris Intake Manifold	richardholdener	Performance Modifications	201	05-18-2009 11:58 AM
Intake Manifold Gasket?	Nexus1155	DIY / Maintenance / Service	6	11-18-2008 08:03 PM
Official Richard Holdener MID-RANGE Intake Manifold List	WolfWings	Performance Modifications	59	11-13-2008 11:26 PM
Intake Systems Decision Maker..	Blenjar	Performance Modifications	25	09-15-2007 10:07 PM