Custom intake manifold??

cjthor · Post by **cjthor** » July 18th, 2006, 5:01 pm

B6 guys..What are you doing for manifolds? Thinking since I am going standalone that a custom manifold would help too....get rid of the stupid VIRS system and get a better throttle body. Help?

ariesdude · Post by **ariesdude** » July 18th, 2006, 5:03 pm

I maybe wrong on this - late model protege 1.6L manifolds dont seem to have VICS stuff on them

JWMotorsports · Post by **JWMotorsports** » July 18th, 2006, 10:49 pm

M1 Miata intake manifolds. You have to cut off the throttle neck, weld the IAC chamber closed and turn it into a velocity stack behind a 75mm BBK Mustang Throttle Body

Well, thats what we did for now...lol

I can make custom Intake Manifolds aswell. I've got a one off design I'm going to use probably next year and one design based off what the Pro Street V8 guys are using which is what I might try out before next year. I'm broke or I'd be using the new design which to my knowledge hasn't been tryed yet

Bochek · Post by **Bochek** » July 18th, 2006, 11:10 pm

if boosted, then look @ afermarket miata manifolds, if N/A then go ITB's!!!!

Bochek

cjthor · Post by **cjthor** » July 19th, 2006, 12:07 am

Bochek wrote:if boosted, then look @ afermarket miata manifolds, if N/A then go ITB's!!!!

Bochek

Miata has a different intake manifold flange than the mx3

cjthor · Post by **cjthor** » July 19th, 2006, 2:22 am

JWMotorsports wrote:M1 Miata intake manifolds. You have to cut off the throttle neck, weld the IAC chamber closed and turn it into a velocity stack behind a 75mm BBK Mustang Throttle Body Well, thats what we did for now...lol

I can make custom Intake Manifolds aswell. I've got a one off design I'm going to use probably next year and one design based off what the Pro Street V8 guys are using which is what I might try out before next year. I'm broke or I'd be using the new design which to my knowledge hasn't been tryed yet

I'll call ya tomorrow.

nos92mx3 · Post by **nos92mx3** » July 19th, 2006, 10:34 am

I was actually thinking for now just replacing the upper plenum with a larger Plenum/throttle body.

JWMotorsports · Post by **JWMotorsports** » July 19th, 2006, 4:43 pm

Every little bit helps. There are several things you can change on intake manifold designs to gain power. The hardest part is keeping the power band in a useable range. Forced induction (excluding n2o) doen't need as much plenum volume as NA cars do for the peak power numbers. The biggest restricion on the top side of the power band is runner length. But by shortening them you also lose low end power. The design you chose should depend mainly on your power band you'll be utilizing, unfortunately you can't have it all but my new design may offer the closest thing possible. I'm not releasing details on it until after I've fabricated it, tested it on my car and patented the design. It couples several technologies from various design applications (not just automotive). Features no moving parts or BS...just physics

I actually have several design ideas for intake manifolds, 1 off cylinder heads....never been done before, cam & lifter replacements for electronic valve control/actuation (BMW has this technology on the market now, but I'm wanting to do universal for existing cars

). I had the idea of electronic spool assist a really long time ago, then Mazda announced it was using it 3 years later on a hydrogen powered Renisis Rotary (thats was before concept Evolve...RX-8). Oh well, there is always tomarrow and maybe one day I'll beat em to it...

BuGS · Post by **BuGS** » July 20th, 2006, 11:41 pm

Bochek wrote:if boosted, then look @ afermarket miata manifolds, if N/A then go ITB's!!!!

Bochek

ITBS on FI is just as awesome. Skylines baby...

Bochek · Post by **Bochek** » July 20th, 2006, 11:45 pm

BuGS wrote:
Bochek wrote:if boosted, then look @ afermarket miata manifolds, if N/A then go ITB's!!!!

Bochek
ITBS on FI is just as awesome. Skylines baby...

itb's on FI, now that would be cool, maby il combine my sc project with my itb project. now where talking.

Bochek

cjthor · Post by **cjthor** » July 23rd, 2006, 2:04 am

I sold a car to a guy today and hes gonna teach me how to TIG!! He has a TIG machine, two MIGs, and a heliarc. Anyone know of any good sites with writeups on how to design a custom intake??

cjthor · Post by **cjthor** » July 24th, 2006, 1:39 am

cjthor wrote:I sold a car to a guy today and hes gonna teach me how to TIG!! He has a TIG machine, two MIGs, and a heliarc. Anyone know of any good sites with writeups on how to design a custom intake??

I have seen the inside of some intakes and the runners go into the main body of the intake and they have trumpets on them.....anyone know what im talkin about?

Cy · Post by Cy » July 24th, 2006, 1:55 am

itb's on FI is a sinch...

you just need somone who can pressure weld to atleast 40psi....

nos92mx3 · Post by **nos92mx3** » July 24th, 2006, 8:38 am

cjthor wrote:
cjthor wrote:I sold a car to a guy today and hes gonna teach me how to TIG!! He has a TIG machine, two MIGs, and a heliarc. Anyone know of any good sites with writeups on how to design a custom intake??
I have seen the inside of some intakes and the runners go into the main body of the intake and they have trumpets on them.....anyone know what im talkin about?

Velocity stacks.

cjthor · Post by **cjthor** » July 24th, 2006, 10:38 am

Cy wrote:itb's on FI is a sinch...

you just need somone who can pressure weld to atleast 40psi....

??? What the heck is pressure weld? Do you mean MIG or TIG? What does that have to do with ITB's?