anyone running an sc61 with a 2.5" dp? I just got my sc61 and I didn't think that the stage 5 wheel would be that much bigger than the stage 3. also the dp flange i bought is only like a 2.375" diameter. I have a/c so 3" is kinda outta the question. anyone have a 2.5" dp (or even 3" but retaining a/c)?


so to set the facts down:
stage 5 outlet = 2.75"
dp flange = 2.375"
downpipe piping = 2.5"

 

I'm running a 2.5" downpipe with my SC61 with no problem

 

doesn't cause any spikes or anything?

my main concern was the edges of the dp flange basically BLOCKING flow out of the turbine wheel like this....



just a sketch but, anything outside that circle would be blocked off like this

 

I feel sorry for you Marc, putting that monster on a SOHC D16.

Can you open up the flange? If not, a 3-2.5 inch flare piece will work, you should have enough room then to run the rest of the DP in 2.5 inch.

 

checkign with my friend who has a machine shop. i was thinking it would be better to have the flange made bigger (can't go too big) but then if anything make it more of a transition to a smaller size. i dunno ill see just seeing what people think,

 

i have a dp flange thats 2.5"... got it from Innovative Turbo System, but im pretty sure you can get them anywhere.

 

No spikes, no creeping.....Works fine, but I'm sure that I'm losing a couple of hp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tthame1 &raquo;</TD></TR><TR><TD CLASS="quote">No spikes, no creeping.....Works fine, but I'm sure that I'm losing a couple of hp.</TD></TR></TABLE>

Yeah, but you are staying cool.

 

Very true, my a/c works just as well as it did when the car was stock and I live in LA, so it gets VERY hot.

 

That wheel isn't a stage 5. It has 11 blades which means its probably a P trim

 

You can run the 2.5" downpipe and its going to cause some turbulance and rob some power.... but you can still make a **** load. TurboTegB18c ran a inline pro mani w/ SC61 and 2.5" downpipe-2.75" exhaust and made 459whp @ 22psi...


Modified by DIRep972 at 8:15 PM 5/17/2004

 

I am running a 2.5'' dp and I have no problem

 

Just run the 2.5" dp and grind the opening up to the 2.75. It'll work. Power wise, you might have some power robbed from you as direp said. Paul

 

THats what I did. Grinded out a 2.5 to 2.75, works great.

 

ive seen a sohc make 420 whp on a sc61 with 2.5" downpipe

 

really? do you know the setup or have any dyno sheets of it?
im interested to see when that thing spools up

 

**** i have a t3/t4 and im afraid it want spool up on my d16y8

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostismycrack &raquo;</TD></TR><TR><TD CLASS="quote">THats what I did. Grinded out a 2.5 to 2.75, works great.</TD></TR></TABLE>

id do the same....bore it out to larger. It will work great.

Marc is such a stunna props to my homeboy.

liam

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Timmay &raquo;</TD></TR><TR><TD CLASS="quote">ive seen a sohc make 420 whp on a sc61 with 2.5" downpipe</TD></TR></TABLE>

yah gotta see that one. inspiration

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdm.ek &raquo;</TD></TR><TR><TD CLASS="quote">**** i have a t3/t4 and im afraid it want spool up on my d16y8</TD></TR></TABLE>

Go with a .48A/R, full 3" dp and no restrictions exhaust and I bet that mother will spool quicker than hell. That's what I'll be doing with the SC50 that's going on my Y8.

 

my 50 trim t3/to4 with .63 a/r works great on my d16z6, spool really isnt that bad

 

the spoolin time will be horrible wih that monster ??? or im just too affraid of it ? this thing is huge !!

 

Marc just dremel the flange out like i told you to do with the head gasket

 

lag isnt all that bad guys. do i have to mention our sohc with a full t4 and a .81 rear??? car runs like a beast. especially 3rd gear!!!

 

"Lag for the traction, top end for the action"