Let's see some pics of other people's homemade intake manifolds. Here's a few of the one I made for my old school '86 Civic Street Mod car:





-Chris

 

Nice.

Do you happen to know of a good link where I can get information about calculating runner length, cross section area and plenum volume for a boosted engine?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mopar junkie &raquo;</TD></TR><TR><TD CLASS="quote">Nice.

Do you happen to know of a good link where I can get information about calculating runner length, cross section area and plenum volume for a boosted engine?</TD></TR></TABLE>

!!!

 

on a related note; how about taking B series LS or type R manifold, cutting it back (at the head flange) and welding it to a D series intake side, head flange? This could give you a signifigantly larer plenum & runners and only involve 4 welds. might be a cheap way to make a FI IM for D series with a little porting and welding...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mopar junkie &raquo;</TD></TR><TR><TD CLASS="quote">Nice.

Do you happen to know of a good link where I can get information about calculating runner length, cross section area and plenum volume for a boosted engine?</TD></TR></TABLE>

http://www.grapeaperacing.com/...s.pdf

Also, this book http://www.amazon.com/exec/obi...07846 has an entire chapter dedicated to the subject.

 

Here is a couple of shots of a staged injection manifold that Don Polk built for our 2.3L car.





Another shot as I started setting up the fuel system.



jeff

 

This is an intake manifold Boosted Hybrid fabricated. I hope he doesnt mind me posting these pictures.

http://www.boosted-hybrid.com/viewtopic.php?t=385

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 0x64 &raquo;</TD></TR><TR><TD CLASS="quote">This is an intake manifold Boosted Hybrid fabricated. I hope he doesnt mind me posting these pictures.

</TD></TR></TABLE>

ive heard lots of good things about that manifold

 

I like larrys carbon manny

http://www.theoldone.com/compo...fold/

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by funkfnamna &raquo;</TD></TR><TR><TD CLASS="quote">I like larrys carbon manny

http://www.theoldone.com/compo...fold/
</TD></TR></TABLE>

That thing is badass!

Does he mass produce those for sale?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by carbonDelSol &raquo;</TD></TR><TR><TD CLASS="quote">

That thing is badass!

Does he mass produce those for sale?</TD></TR></TABLE>

Yes, they are made by Fiber Dynamics/A.I.R. (Air Induction Research) in Kansas somewhere

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rick Solis &raquo;</TD></TR><TR><TD CLASS="quote">Yes, they are made by Fiber Dynamics/A.I.R. (Air Induction Research) in Kansas somewhere</TD></TR></TABLE>

the website is down

I think that mani looks really bad *** and well designed.. but,

I've always wondered how well two very dissimilar materials would bond together? And what about all the temperature changes the manifold would go through from day to day? Is bonding CF to aluminum a fairly common and proven thing? just curious..

 

another good place to read up on runner length is http://www.burnsstainless.com. tech section

 

heres a mani I was making for a 20v Audi head on a 2.0ltr VW block/ basically added on the larger front feeder and flanged for a mustang throttle body.

 

super sick manny!

 

I did a MR2 manifold a while back.
There wasnt anything as far as the specific plenum size and what not. It was just built to fit and Accompany a Larger TB.

anyways Cut up the Cast manifold plenum built this one, ported it all and 90mm q45 TB

 

runner lenth is easy devide the rpm that you want the most power at into 132,000
like 8000 into 132,000 is16.5 thats from the valveseat to the end of the runner
or stack depending on what style your running thats inches by the way

 

interesting, what about volume?

 

the "132,000/rpm" does nothing to account for runner diameter...

 

Is there a formula for Diameter and Volume?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suprdave &raquo;</TD></TR><TR><TD CLASS="quote">Is there a formula for Diameter and Volume?</TD></TR></TABLE>

lol... Ill tell you exactly what I was told when I was learning about IM fabrication...

There is a correct forumla, it is...

experience x experience x knowledge + skill

 

dia. is port size x wait what the hell am I telling you for ?

 

Ive seen a million different ways of calculating runners and plenums... Everyone has their own way of doing things

 

nice pics

 

Very trick stuff in this thread.