4" intake and blow through maf

[ttgeoff]

Need some opinions on my current plans. I am currently fabbing a fmic on my MS6 and i feel pretty strongly that i should convert to a blow through maf and then fab up a 4in intake and run my tial 50mm BOV thats just sitting on the shelf from a previous car. Will i run into issues with this maf combo. to help it is going to be a stock size maf housing with a straightner and about 10" of straigt pipe before the sensor. any help would be appreciated

[chaser27]

Just curious, why use a 4" intake assumingly on a K04? and then go to a stock 2.5" blow through MAF housing?

[anavrinIV]

Originally Posted by chaser27 Just curious, why use a 4" intake assumingly on a K04? and then go to a stock 2.5" blow through MAF housing?

The larger intake will flow more and the stock MAF sizing in a blow-through setup will work better with drivability than the 4".

That said it's a pointless exercise on the k04 IMO, I could flow enough through a stock size intake to max my k04 and made the same power and torque with a corksport intake as I did with a 3.5" JBR.

[chaser27]

Originally Posted by anavrinIV The larger intake will flow more and the stock MAF sizing in a blow-through setup will work better with drivability than the 4". That said it's a pointless exercise on the k04 IMO, I could flow enough through a stock size intake to max my k04 and made the same power and torque with a corksport intake as I did with a 3.5" JBR.

That's what I was getting at. Was he getting ready for a bigger turbo? Even then I'd go 3" blow through instead of the 2.5". But honestly, I'm not sure it's worth it to go blow through vs blow by. Sounds like more trouble than it's worth to me.

[ttgeoff]

thats good to know as i currently have a corksport but i still plan on running the blow through and eventually upgrading the size of the maf but as of now it will handle my power level just fine. i have very near plans on going to a gtx3076 and cpe manifold and im just doing work in preporation of those mods. im more concerned with tuning and or driveability on the blow through as i am fairly certain it will not hurt to free up the intake side even if not needed on the K04

[someguy]

For no other reason other than blow through and BOV's are cool I say do it

[ttgeoff]

So is there going to be any driveability issue with the blow through set up? I have had great success with my twin turbo mustang converting to blow through but all cars are different.

[ABolewski]

Many people are successful however most of those people use a honeycomb before the MAF in a blow through setup.
Also, I highly highly highly recommend going with a 3" MAF housing for your blow through. The 2.67" housing (or w/e the fuck it is) will max out your MAF voltage much much sooner, and you are already going to have to tune for a blow through setup so might as well up the housing size.

[ttgeoff]

Originally Posted by ABolewski Many people are successful however most of those people use a honeycomb before the MAF in a blow through setup. Also, I highly highly highly recommend going with a 3" MAF housing for your blow through. The 2.67" housing (or w/e the fuck it is) will max out your MAF voltage much much sooner, and you are already going to have to tune for a blow through setup so might as well up the housing size.

thats definately easy enough to acomplish and thanks for the input. im totally sold on the honeycomb and have foud very good maf housings on treadstone so im pulling the trigger and hope to post pics soon.

[ABolewski]

image.jpg

My blow through housing is ready for instal next weekend. Pretty excited to see how well it works. I'm really hoping it will support ~450hp before maxing out the voltage but if it doesn't I'll make a 3.5" setup and swap it out.

[ttgeoff]

ive decided to go 3.5" from the start and will start working on the set up in a few weeks when my school/work schedule allow time to do some small fab work

[ttgeoff]

I now have all the materials to start my build just waiting on time.

3.5" maf from treadstone $67.50
3.5" maf honeycomb $25
4" u-bend $24
3.5" and 4" couplers $30
4" filter 9" long $32
for more giggles i went ahead a bought
T3 GT30r .82 v band and a SS T3 manifold to help with needing a big maf and big intake. pics soon to come and will include modified M2 dp with recir MV-S and custom but easy intake fab