Billet intake manifold
 

So i guess bobby has a billet intake manifold coming ito production very soon, it just posted on my facebook page. Looks decent. Has my.interested perked. I know some of you arent big fans of him. So i guess now we are waiting for CJM to come.up with a design.

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Wonder of my facebook linked would work better, but here is what it looks.like

saw this earlier but cant find info on RJM. guess its a new company.

If Bobby is involved, it'll blow up your motor somehow.

:wtf2:

:stirthepot:

But seriously looking at it better make like 20WHP for what that'll cost

:bowrofl::roflpuke2:

100% true


Since Bobby isn't a forum vendor, we should not be talking about his products here

I wasnt trying to promote him, i mean i can delete it. Im just stoked that one has been created

i'll just get the stock p&p'd.

Going from Bobby's history, the only place it would make any power would be on his dyno. You're better off with any other option than that one.

Nice looking bottom piece but its the top half that determines how the power curves on this motor. The other limiting factor is lift on the cams.
So you can have a great flowing intake manifold that will perform well on a force induction engine. But the expectations on an NA could be less until you address the cams.
Everything has to work as a package and then than package needs to be the right combination.

is it for sure from bobby? i mean i don't really care who makes it if it works.....unless it's scotty. at least someone is doing something for the Z. car is in it's 8th model year and all we got for NA air mods is a couple CAI options, Z1 shaved oem upper manifolds, and that's about it.

basically it's either be happy with a little power or boost it lol

He is promoting it, i just don't trust anything from any local shops with 10-15 mile radius of me.

i never heard of the company nor any idea where it is or who was promoting it lol

i just saw a new product that we've all been wanting and got excited.

still awaiting to see what phunk has in the works whenever he finishes it.

I agree you with waiting on phunk. Hopefully it something badass or flows similar to 1slowzs manifold

the only downfall with phunks is he has other projects going and it seems the intake manifold is towards the bottom of the priority list.

anymore i feel it's time to forget about any more mods on the Z and move on to adding a new vehicle to the garage. its a dead mod market unless you're boosted.

After looking around, I have not found a clear answer. What are the reasons people are looking for a new intake manifold? What restrictions are you running into? I see with high boost applications the risk of blow outs but even that is pretty un-common. I have seen a few nitrous back-fires not end well with them. But overall after a pretty solid amount of these on the dyno we have not seen a "restriction" anywhere due to the intake alone.


Always down to learn more so I am curious.

Im.looking for one to compliment the heads and cam and larger tb's and higher revloution and not having to go back and reinstall, i want everything set in place is my reason. Are you saying our manifolds are good, if we are trying the rev the **** out of these.motors? Im always game to learn more about these motors

maybe not so much a restriction, but an improvement anywhere? Im just looking to make the most HP out of this car

Or based on the motor is basically is a big air pump, the more air you can get in a out the more power you make. So a great manifold like the one slowZ had would really help.in thay area, but im to poor to put up for a 1 off custom manifold

more HP from a upper/lower upgrade combo would be amazing.

bonus points would be if the upper was functional and had a nice look than the bulky black plastic oem upper.

carbon fiber intake like the AMS GT-R one.......pure sex. and also $8k but still sexy lol

Agreeed with his statement ^^^

Or spend 3500 on a billet one off, just want something other then going boost, ill go boost once the r34 becomes avilable

that's where the Z sucks though. market is too small so it's not worth the R&D to bring a new piece to the mass market. hence the reason of things like one-off unicorn pieces that cost a ton of money.

the HR guys are having pretty good success with port jobs on upper and lower work. I dont see why we couldnt benefit!

Yeah i know, why stay na when you can go boost and triple your horsepower. Stupid boost

If worst comes to worse, guess ill have to shell out for a one part

yea but most lower port jobs ive seen are netting like 5 hp and cost a few hundred. at least for the money it be nice to have a nicer looking piece with my 5hp lol


:shakes head:

i'm still at the fork in the road between do i spend $25k on boosting the Z or do i just get a different vehicle. so far waiting to go with a different vehicle still winning :tiphat:

Yeah 25k is alot. Im still going to n play the waiting game to stay NA. My turbo is a dry sump and a billet crank

they posted a flow video and it's pretty good.

the avg cylinder flow stock in rounded numbers was 190cm3

the avg cylinder flow of the new lower was 256cm3

that's a pretty decent increase. I would assume much more than the port and polish that I've seen most people do recently.

If they don't charge an arm and a leg they will sell quite a few I think.

Lol i just wrote them down to post, you brat me to the punch. Now is this a huge improvement i dont know these numbers. You know i dont speak Spanish

we have seen HP/TQ increases from people just porting stock OEM lowers so a lower purpose built should take those numbers even higher.

the numbers show around 25-30% increase in air flow volume. I have no idea what the increase is on an OEM ported lower to compare. so for now its hard to say. once they release and we see some dyno numbers that'll be the deciding factor.

Add some JWT cams in the mix!

A new lower doesnt make sense. It cant get any bigger vs porting unless you port the head too or you'll have a big lip. Obviously a machined piece will be more accurate vs hand porting or maybe give it a different shape or funnel? Maybe the runner length will get longer or shorter?? Will that add or move power around? If it does you could always take a oem lower and just machine the top or each side to shorten it. Hmmm what would a shorter lower do? What about machining a spacer making it longer?

We do need a uppet though!

You could port the crap out of a oem lower, theres like 1/4" of metal between each runner but you cant port more than a few mm on the bottom or you open to much having a lip from the heads killing flow. Also the upper part cant go to big or the upper mani wont flow anymore and you cant port the upper mani to much cause you'll port into the gasket ring. So basically you can port the crap out of a oem lower increasing flow but the shape will turn into skinny top and bottom with a fat mid section. I have no idea what that'd do for flow design.

It may flow a lot. But what about port velocity?

Which the shape i descibed would do what do you think?