Re: Started my Indy intake mods for this years engine
[Re: pittsburghracer]
#1579115
02/15/14 02:00 AM
02/15/14 02:00 AM
|
Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
Quote:
You didnt want to weld up the one side?.. what manifold is that
Sorry Mike I just came in from the shop. I bought this intake on Moparts Feb 3 and this is how it was listed.
Indy 360-1 W2 [Re: HOT IN AZ] #8025058 - Mon Feb 03 2014 01:16 PM Attachment (66 downloads) Reply to this post Reply Reply to this post Quote
I jump on Indys site to look it up to make sure it was the same as the one I did for my Friend and it was. I stuck it on the flow bench tonight and checked number three port as number 3 and 6 were the hardest to get good number on my buddies. Low and high number were ok but I have more work to do to bring up the mid lift numbers. Here are some flow number with a 2.08 valve Edelbrock head. Airspeed is still high in this head but there's only so much metal to work with where you start with a 177cc casting. Stock with a 2.02 valve it maxed out at [Email]243cfm@.700[/Email]
-------Ported head-----------------ported head with Indy intake .100-----66------------------------65 .200----148------------------------140 .300----209------------------------202 .350----239------------------------227 .400----258------------------------243 .450----278------------------------256 .500----292------------------------268 .550----295------------------------273 .600----306------------------------279 .650----310------------------------296 .700----291------------------------300
As you can see the intake actually helped at .700 lift. I think the extra volume in the Indy intake slows the airspeed down some and calms the head. On my buddies we hit 317-318cfm on some of the other runners. More work later this weekend.
That sure dont look like any W-2 I know of... I guess it doesnt matter if your changing the port shape.. all the W-2s I know of had oval ports
|
|
|
Re: Started my Indy intake mods for this years engine
[Re: MR_P_BODY]
#1579116
02/15/14 02:12 AM
02/15/14 02:12 AM
|
Joined: Feb 2005
Posts: 20,197 PA.
pittsburghracer
OP
"Little"John
|
OP
"Little"John
Joined: Feb 2005
Posts: 20,197
PA.
|
Quote: You didnt want to weld up the one side?.. what manifold is that Here's a couple of pictures of the port opened up and the little modifying needed to an Edelbrock intake gasket. I have to tig weld the adapter in a couple of spots so I can taper it more. On the bench
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
|
|
|
Re: Started my Indy intake mods for this years engine
[Re: pittsburghracer]
#1579117
02/15/14 02:20 AM
02/15/14 02:20 AM
|
Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
Quote: You didnt want to weld up the one side?.. what manifold is that
Here's a couple of pictures of the port opened up and the little modifying needed to an Edelbrock intake gasket. I have to tig weld the adapter in a couple of spots so I can taper it more.
On the bench
Got ya... I was thinking there was a big difference in the intake to head(air was crashing into the head)
|
|
|
Re: Started my Indy intake mods for this years engine
[Re: Jeremiah]
#1579126
02/15/14 06:12 PM
02/15/14 06:12 PM
|
Joined: Apr 2009
Posts: 3,422 Toronto
mshred
master
|
master
Joined: Apr 2009
Posts: 3,422
Toronto
|
Quote:
I did some similar work to my 400-2 intake and always wondered what these things were supposed to accomplish. I removed them in when I matched the intake to my HVH/NxExpress N2O plate. Thoughts?
I have been wondering about those same areas on my Indy small block intake as well
By the way John, very nice work on yours! I notice you really got down into the plenum- what is the benefit of flattening those walls out like that? (hopefully I am making sense lol)
|
|
|
Re: Started my Indy intake mods for this years engine
[Re: pittsburghracer]
#1579128
02/15/14 07:02 PM
02/15/14 07:02 PM
|
Joined: Apr 2009
Posts: 3,422 Toronto
mshred
master
|
master
Joined: Apr 2009
Posts: 3,422
Toronto
|
Quote:
Quote:
Quote:
I did some similar work to my 400-2 intake and always wondered what these things were supposed to accomplish. I removed them in when I matched the intake to my HVH/NxExpress N2O plate. Thoughts?
I have been wondering about those same areas on my Indy small block intake as well
By the way John, very nice work on yours! I notice you really got down into the plenum- what is the benefit of flattening those walls out like that? (hopefully I am making sense lol)
Thanks Matt. At that point the only port really shaped in enough was #3 and I just wanted to get some numbers to sleep on as I will be spending lots of time clearing snow from my driveway. Warm-up coming this week and I want to get the Duster home hopefully next Sunday. I flatten the walls and will be playing with some different shapes to get some needed volume to help slow the head speed down some. I will try to get 10-15 more cfm in the mid lifts. 3 and 6 are a struggle as they have to navigate the pinch on the short runners. I'm glad I don't have to pay myself by the hour.
So flattening and angling the walls of the plenum in these pictures is to help slow down the head speed?
My intake is already port matched, but I was thinking about doing some plenum work to it....The question Jeremiah brought up and seeing your pictures has made me curious to the benefits (if any) of the stock opening vs. how you are flattening and angling the plenum entry area.
|
|
|
|
|