the forgotten CJM Intake Manifold, revisited
I'd like to purchase one for our S13 drag car project.. the goal is around 1000whp, built 8.8 solid axle with custom 4 link, and a race weight of around 2500lbs with driver. I am going to be using some big bump sticks that will put me in the upper 8K RPM range. So, if you're interested, PM me with a price.. honestly.. I can fab my own plenum.. and would actually prefer to do that, since I will need to make it fit under my S13 hood.
Travis
Travis
Looks like a hell of a lot of machine work for the billet piece...beautiful is the only word that comes to mind. Always thought it looked awesome from the beginning, glad you are revisiting it because I know you would sell a ton of these if you wanted to.
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CJ Motorsports
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From: West Chicago, IL
Just wanted to throw in a post, I will get replies to everyone today, super busy ATM.
As for you guys waiting for the S3 fuel system, an update will be posted in the next day or two with some good photos and information for you.
As for you guys waiting for the S3 fuel system, an update will be posted in the next day or two with some good photos and information for you.
Originally Posted by phunk
Just wanted to throw in a post, I will get replies to everyone today, super busy ATM.
As for you guys waiting for the S3 fuel system, an update will be posted in the next day or two with some good photos and information for you.
As for you guys waiting for the S3 fuel system, an update will be posted in the next day or two with some good photos and information for you.
Joined: Jan 2004
Posts: 7,175
Likes: 132
From: Florida
Originally Posted by GodSendsDeath
Send it to FORGED...god knows what they will make out of it. Fingers crossed 800whp Z lol.

Nice design. i would like to see if it would work on the N/a car Jeremy is working with.
Very nice work phunk, but the market for this is pretty thin dont you think? The stock bottom plenum does a pretty good job breathing at the meat of our rpm range. Something like this is only usefull for crazy NA builds and only 1 person so far comes to mind, Audiblemayhem's 15:1 compression car lol.
Someone with high FI power goals could just port the stockers, no?
Also, wont the new generation heads from the VQ37HR make all this work almost irrelavant.
Save your money and go design a nice external wastegate package for the 100's of APS TT guys.
Someone with high FI power goals could just port the stockers, no?
Also, wont the new generation heads from the VQ37HR make all this work almost irrelavant.
Save your money and go design a nice external wastegate package for the 100's of APS TT guys.
Last edited by Enron Exec; Apr 5, 2007 at 05:05 PM.
Thread Starter
CJ Motorsports
iTrader: (21)
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From: West Chicago, IL
Originally Posted by Fluid1
Extremely interesting. My first thoughts while looking at the design was about turbulence inside the plenum. What do you think about leveling the lower plenum off with the metal base much higher, near the opening of the runners?
Originally Posted by InjectedPerf
Looks like a lot just to "play around with"
. Send it over and we will test it on our GT47-88 Z!!!
. Send it over and we will test it on our GT47-88 Z!!!
Originally Posted by aceman
Nice looking plenum!!
What you said about the power being moved to 9000k makes alot of sense. The shorter runners, the further up the power band will be moved.
I bet Audiblemayhem might be able to see some nice numbers with your plenum on his new setup.
One question. Was this tested on a revup engine or a 287hp engine?
Nice work
Later
Todd
What you said about the power being moved to 9000k makes alot of sense. The shorter runners, the further up the power band will be moved.
I bet Audiblemayhem might be able to see some nice numbers with your plenum on his new setup.
One question. Was this tested on a revup engine or a 287hp engine?
Nice work
Later
Todd
It was tested on a 287hp engine.
Originally Posted by Resolute
I always wondered what became of this. I'm really impressed. I have to say, I'm tempted enough to order one. I plan on NA, but I've a different idea for the upper manifold that would work well with what you have created. Care to throw out how much "a pretty penny" would be for a CNC model?
Will
Will
Originally Posted by Gumpdriver
Awsome pics. what program did you guys use Autocad?
Originally Posted by damelman
Charles, what material did you use to make the prototype. I'm in the process
of designing a blower manifold for a kenne bell setup.
of designing a blower manifold for a kenne bell setup.
Originally Posted by failsafe306
So I have to ask.....why not just try it out on your own car? I thought you had it up and running?
Originally Posted by Trav4011
I'd like to purchase one for our S13 drag car project.. the goal is around 1000whp, built 8.8 solid axle with custom 4 link, and a race weight of around 2500lbs with driver. I am going to be using some big bump sticks that will put me in the upper 8K RPM range. So, if you're interested, PM me with a price.. honestly.. I can fab my own plenum.. and would actually prefer to do that, since I will need to make it fit under my S13 hood.
Travis
Travis
Originally Posted by Audible Mayhem
send it to me!!! i will see how it does NA...

Originally Posted by 002-M-P
Looks like a hell of a lot of machine work for the billet piece...beautiful is the only word that comes to mind. Always thought it looked awesome from the beginning, glad you are revisiting it because I know you would sell a ton of these if you wanted to.
Originally Posted by Enron Exec
Very nice work phunk, but the market for this is pretty thin dont you think? The stock bottom plenum does a pretty good job breathing at the meat of our rpm range. Something like this is only usefull for crazy NA builds and only 1 person so far comes to mind, Audiblemayhem's 15:1 compression car lol.
Someone with high FI power goals could just port the stockers, no?
Also, wont the new generation heads from the VQ37HR make all this work almost irrelavant.
Save your money and go design a nice external wastegate package for the 100's of APS TT guys.
Someone with high FI power goals could just port the stockers, no?
Also, wont the new generation heads from the VQ37HR make all this work almost irrelavant.
Save your money and go design a nice external wastegate package for the 100's of APS TT guys.

Originally Posted by phunk
Your probably right, I am sure we could sell them as is... but as usual we are pretty picky about releasing stuff, hehe.
Originally Posted by phunk
Like I was sayign above, a CNC version would probably be in the area of 1200 bucks. Specs could be altered slightly for application.
Thread Starter
CJ Motorsports
iTrader: (21)
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From: West Chicago, IL
actually the plenum would be more, we would just get you a flange to make a plenum with
The raw time spent on the CNC to make that brick into that shape is whats killing the economy of selling these things as a CNC product rather than just casting it. thats what i meant when i said a pretty penny!
The raw time spent on the CNC to make that brick into that shape is whats killing the economy of selling these things as a CNC product rather than just casting it. thats what i meant when i said a pretty penny!
charles, how did you miss this thread??
https://my350z.com/forum/na-builds/255966-performance-factorys-15-to-1-compression-all-motor-project.html
12.3 at 111 with stock headers and JWT S1 cams, this is going to be fun!!!
send me that manifold if you want to try it NA...
https://my350z.com/forum/na-builds/255966-performance-factorys-15-to-1-compression-all-motor-project.html
12.3 at 111 with stock headers and JWT S1 cams, this is going to be fun!!!
send me that manifold if you want to try it NA...
Looking great Charles! The nice thing about that big of a chunk of aluminum is that the harmonics should be reduced even though you are only using one vice. Makes for a nice clean up cycle.
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It's definitely worth what you're asking for it..

