Well i've got a custom intake manifold with a 75mm BBK/Edelbrock Mustang TB, i have both 2.5 and 3.5" piping, holding up the 2.5 to it just looks out of place, not to mention i dont think i can find a silicone adapter to fit. My idea is just to do 3.5" until it ducks down under the frame rial then trasition it to 2.5"... any thoughts?

my setup is more than capable of moving the air through the upper pipe with minimal spool up time difference

The intake mani


2.5"


3.5"


free plug for sexy port work

 

lol, seems like im posting on all of your threads....i would run 3" up top and 2 1/2 coming off the turbo

 

lol, yea only 1 more to go


im definitely running 2.5 from the turbo to ic. from the intercooler to mid fender i ws gonna run 2.5 and the flare it to 3 or 3.5 before it comes into the engine bay

 

if you have the 3.5 why not....

try and find some aluminum...it would work better

 

yea all i have right now is stainless steel. im gonna try to find some aluminum. the biggest bitch is gonna be a bend in that size

 

topside

 

why not just take the 2.5 pipe and flare the throttle body end of it to the desired size and then it will fit. Any muffler shop can open the piping up some.

 

dude, id only up it to a 3". With that 3.5" your holding up there, looks like youve got a little bit of a bottle neck to get into the throttle body...

 

intake come from Swagger?

 

3.5" piping has more than twice the cross sectional area of 2.5" piping, and therefore twice the volume, and therefore twice the time to spool. 2.5" is fine. Hell, 2.5 is overkill unless you are spinning to 14,000 RPM.

 

I run 3" upper ic pipe. I wouldnt go over 3".

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rhd &raquo;</TD></TR><TR><TD CLASS="quote">intake come from Swagger?</TD></TR></TABLE>

yea, i actually bought it from jared who had his car there... that is so much drama its scary. it was actually made by rmpnyc up in ny

actually the 3.5" fits perfectly, but is the internal volume really that much bigger between 3 and 3.5?

 

yeah, i knew it was from his car...but i didn't know if he actually went back and got any parts


last time i was up there hanging out with Joey the car was still sitting in the shop

 

3.5" should be anough to make 1000 PLus ! lol

We have 3" 3.5" 4 " in alluminum bends if you need some .

 

you gonna have alot more lag I probley wouldent do anything bigger than a 3inch

 

alot more lag woudnt hurt, my current turbo starts building boost at 3400rpm (based on extensive r&d )

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rhd &raquo;</TD></TR><TR><TD CLASS="quote">yeah, i knew it was from his car...but i didn't know if he actually went back and got any parts


last time i was up there hanging out with Joey the car was still sitting in the shop</TD></TR></TABLE>

jared didnt, i bought them from him while he was still in fl. then dave wouldnt ship them so finally a month and a half later he happened to be bringing his gf to the airport in greenville so i drove up and met him. dave pretty much stripped his car out

 

well.....he left if, pretty much abandoned it, and didn't have any money to fix it/pay for storage..

and the car was in the main part of the shop taking up a lot of room

in ALL honesty...i can't see crazy dave at fault....

 

lol true. I wonder if he still has the throttle cable off of the car. hmm

dave met me in greenville about 8:30, but he got there around 6. he was dead asleep in his focus and i about scared him shitless waking him up, hehe

 

haha

well, good to see some of hte parts are going to use. i know the exhaust manifold is going to good use too


good luck with the build..and keep updates!

 

i will, i also got the head too. if i told you the price you would propbably drop dead

 

What about a flared transition just before the throttle body? Burns makes a 2.5" to 3.25" flare in 304SS, which might fit better because that 3.5" looks a little bigger than the throttle body bore.

 

that sounds like a good idea, but i bet that transition is major $$$

i might just do 3" uptop then 2.5 elsewhere

 

so did your GF leave you because of your car and this forum too?

 

3.5 might be too extreme,stick with the proven 3" from the ic to the intake manifold, and for bending the aluminum, just do pie cuts, it works great and you dont have to buy any 90's or 45's. I personally run 2.5 from the turbo to ic and 3" from ic to the intake manifold, and couldnt want. anything any better