ZMNZ

Very cool!
Is it similar to Top Secret's redesigned plenum?
Thanks!

Alang

iTrader: (1)

So should I even bother to ask if your going to try for a CARB certification so us slobs in Calif can consider your handiwork? I'd be willing to volunteer my car if that helps

teh215

iTrader: (8)

Just to add a little info here (please make correct me if I over simplify or mis-state this). Alot of posts on this site refer to either an Injen or AEM cold air "intake" which may be leading to some confusion for some. These are intakes but, they refer to the tubing between the filter, air flow meter and throttle body. The intake Doug is referring to is the plenum which is part of a 2 piece intake manifold system. The plenum is often referred to as the upper intake manifold. The lower intake manifold often contains the fuel injectors, etc. and bolts directly to the cylinder heads and engine block. The plenum, or upper intake manifold, bolts directly to the top of the lower intake manifold. Since the plenum, or upper intake, simply sets on top of the lower intake manifold and does not appear to contain any major engine components (water jackets, etc) , swapping it should be fairly simple.

HTH

Traffic

Are you referring to their exhaust manifold? I don't believe they have an intake plenum available.

92hatchattack

can someone please explain the diffrence in the 2 dyno charts--- cvery confused here--- also-- what is this 9 hp a peak and 19 hp to redline mean--- whats the diffrence there???

Traffic

OK, the 9HP gain is the increase to maximum HP (crudely, 287+9). 19HP is the largest increase in HP, and that occurs at 6400-6600 RPMs.

92hatchattack

sweet-- and this is all whp correct???---looks like weve got ourselfes a solution for that lack of high end power!!!

92hatchattack

one more thing though----- whats with that " speed " dyno?????

whosdady

iTrader: (6)

Will this work with an after market CAI, IE INJEN intake?

Will this work with our current strut bar?

Will this effect emissions and thus our warrenty?

PhoenixINX

Agreed... Mission accomplished. Nice job Doug!

The dyno lost our signal at higher RPM for some reason... who knows. So we're using the speed dyno to indicate our max HP at redline.

CAI - yes

Current bar - No

Effect emissions - No

Warranty - By law, unless the PART CAUSES the problem which is being warrantied. The dealered or warrantor cannot deny any claims.

zeroday

This mod looks very promising. I'd also like to know approximately how much this will cost. Anyone?

92hatchattack

agreed---- i am very excited---- thats the one thing i said that siapointed me bout the stock z was that very high end power was just lacking

<<------ comes from the honda world of high end power lol

but this souds very promising!!!

price--- release date???

ZMNZ

Top Secret actually does have a different plenum on their single turbo 350Z car. They stated that under FI, the stock plenum did not flow air equally to both cylinder banks. Thus, a new plenum was designed.

92hatchattack

holy ****--- that thing looks mean!!!!!! any specs on it----- can we get a pic of the Crawford one please!

PhoenixINX

Pics will be revealed in time...

As for the design, its NOTHING like that. Long tubes as such make low down power, nothing up top.

D'oh

This mod sounds interesting, mainly because it is effective, simple, and (hopefully) fairly inexpensive.

However, since the new plenum will not work with the strut bar, I was wondering if you had though about a different strut bar that might have some bends to bypass your plenum.

I personally really like the strut bar (even if I can't tell that it is there when driving) and I really would not want to loose it. If you had a replacement then I would be more inclined to buy both.

-D'oh!

MannishBoy

iTrader: (1)

Read Doug's reply to me above. They are looking at a new design.

dougrace zs

iTrader: (2)

Ok guys heres the skinny on the intake plenum . The stock strut bar will not fit so we have designed another one, price on this will be around $350.00. We are trying to get a price on the plenum casted that will be polished and look good. If you just want HP and don't care if the plenum is welded up we can do those for around $300.00 exchange.

Traffic

Doug,

I note you say 'exchange' on the welded plenum. Would we be removing and sending our stock plenum?

Let me also clarify, a new strut bar and plenum would be $650-700 tentatively? I can do that.

dougrace zs

iTrader: (2)

Exchange would be I would send you a done up manifold and charge your credit card a core charge of $250.00 till I got your old one back. That way you car is not down for a week.