505 Intake Manifold COMPLETED!

[505zoom]

I would like to see a finished product prior to deciding, Sorry the duck tape looks good but I would like to see a final proto type fully assembled, some dyno numbers compared to stock maybe?!

Rob

Haha, I'll put you down as second in line for a full tape/cardboard version then.

Dyno runs will be done, and hopefully my suspicions of huge top end gains will be fulfilled. I can already tell without even putting it on a flow bench that this thing will outflow the stocker by a gigantic margin.

 

[revhard]

Has anybody flowed the stock manifold versus the stock head?
I think this manifold will easily outflow the stock head judging by power number with 15psi in that other thread.
My guess is that the head is around 230-240cfm, and the manifold will likely do 300+.

 

[terbow]

theres no doubt this will outflow the head in my mind.

 

[steedspeed]

Good point. Get out the die grinders boys!

Hmmmmm! CNC porting for Mazdaspeed Protege......

 

[revhard]

theres no doubt this will outflow the head in my mind.

For sure, just saying that there is likely alot of power hiding in the head also.
If anyone is going to build their motor, make sure to port the head.

 

[Mazdaspeed2oo35]

I have a feeling these Intake manifold is going to make an insane difference in performance, if you have a fully build head, like bigger valves, a good port and polish, better cams and the rest of the toys you guys already know. I cant wait to have these new toy in my hands !!!!!

 

[2.0t03speed]

hmmm leen wana cnc port my spare head as the prototype =D

 

[Mazdaspeed2oo35]

hmmm leen wana cnc port my spare head as the prototype =D

These Manifold like i said if you have work done in the Engine Head is going to make an insane difference, at least thats what im hoping.

 

[avarela86]

If anyone is going to build their motor, make sure to port the head.

Money grows on trees here in the US?! I wish, head work cost mucho $$$. I wish someone did a HOW-TO P/P a head. I could/would def attempt it.

 

[terbow]

standard abrasives has a DIY on head porting, but theres really an art to getting good gains.

http://www.sa-motorsports.com/diyport.aspx

 

[505zoom]

Thanks for the link Tony.

 

[terbow]

No problem, its a good read. Ive tried it and it came out nice on my cavalier (i never got to install it though), I didnt go for cc'ing the combustion bowl cause i was afraid of creating more bad than good. However, theres no substitute for experience.

 

[magnumP5]

*Shuffles into the "definite" list. (rockon)

 

[steedspeed]

hmmm leen wana cnc port my spare head as the prototype =D

Might be fun! How restrictive is the stock head?

I've only ever done my Celica and that one I opened up the intake and exhaust by .25 inch for high revs. It made a huge difference. Even sounded better. I also cnc milled the combustion chambers to get them identical + smooth.

 

[2.0t03speed]

i can take some pictures for you if you would like i have a old intake mani gasket laying around here i think. so i can show you how much room you have to work with

 

[magnumP5]

Trust me, you don't want to see the current pictures of his cylinder head. Long story put shortly, his valve seals were essentially nonexistent in cylinders 1 and 4.

 

[2.0t03speed]

talking about my spare head that i have in my garage genius =)

 

[ForceFed]

I would like to see a finished product prior to deciding, Sorry the duck tape looks good but I would like to see a final proto type fully assembled, some dyno numbers compared to stock maybe?!

Rob

+1 on this for me as well....Not to mention I am friggen' going broke on this project..LOL!

 

[kamon8404]

+1 on this for me as well....Not to mention I am friggen' going broke on this project..LOL!

It will be worth it in the long run.

 

[orng1]

standard abrasives has a DIY on head porting, but theres really an art to getting good gains.

http://www.sa-motorsports.com/diyport.aspx

Yeah thanks for the link, I had been buying pieces for mine. I got one from a friend a while back ago.