[MK 72 240]

Hi all
Well after the talk of the ram air designs with tony D and some others I put my car in the garage for winter (well CA winter) and started to get some cosmetic stuff and some mods stuff done...
Anyways I pulled the cowl and here is what i've come up with if you guys (Mostly Tony D ) thinks it will work... (sorry no pictures of diagrams yet but soon....

Ok...so if you take off the cowl in front of the drivers side where the windsheild sprayer comes out there is a box approx. 8"X6" that I figured could be sealed up and directed by a combination of sheet metal and fiberglass.. Now just to the right inder the cowl is a crossmember that has 2 holes about the same size as SU inlets side by side that goes through a thin firewall out to the fender from there I was thinking of runing 2 pipes from there through the wheel well and back into the engine compartmnent where the washer bottle sits... Now from here I have a couple of options (actually one from the start) Now should I put a cone filter in the cowl area or should I come through the fire wall ( Washer bottle space) and make a box with a like K&N civic replacement filter (small flat sqaure) then plumb 2 pipes one to each SU ( I was thinking of some kind of flexible rubber boot (shaped kinda like a control arm boot) to allow engine vibration and movement) or would it be better to run the pipes to a chamber connected to the SU's (like a 4" tube) and put a cone filter in the chamber ???

oh yeah as for getting the air in I thought about taking the cowl and cutting it across the front of where the opening would be then on the sides and just lift it and bend it up then fiberglass the sides for a homemade scoop...also the chamber where it would be sealed up for flow is smaller on the opposite side of where the pipes to the outside will be so should i try to get the intake area to a cone shape to force air towards the piping and help maximize air flow????

Also can I use the ribbed fleible exhaust piping for this? or will the ridges cause to much air turbulence and reduce effect or would it increase it since it is set up almost like a corkscrew in design???

Well that's all I can think of for now but I'm sure I'll have more later....

Thanks all

Z ya later
Mike K

 

[Cyind]

Check out RamAirBox Not that they have a kit for a stock Z but they also have just parts. Snorkels and tubes that might give some ideals... For us with V8's it is easy to run twin tubes to the front air dam for cold air and 1/4 mile acceleration tests have yielded .2 to .4 of a second elapsed-time improvement on the V8 setup. Who know, maybe if enough of you with SU's or FI ask for a kit they might design a good setup for all of you to an air dam on into the cowl area.... Just a though...

http://www.ramairbox.com/parts.html

Z U V8ter

 

[zmefly]

its not ram air its cold air intake

if you talking about the guy that just a little while ago posted his ram air for the later fuel injected Z for 79.00, well thats all it really is i had the same thing on my turbo. exactly like what he had. that is also not my idea of ram air, what i always thought ram air was is exactly that. ramming or forcing air down the intake threw the air filter. into the intake system. all he has is what most have used a cold air intake, and its nothing that special if others think it is or im wrong then tell me

james

pittsburgh pa

 

[103kzx]

Re: its not ram air its cold air intake

I have my k&n cone mounted on my front air ****, at speeds above 35, it is ram air.

 

[zphreek]

Re: its not ram air its cold air intake

MK is talking about cowl induction. from what i have learned so far, there is far more potential on a Z from cowl induction than from ram air. cowl induction relies on the windshield being a huge airdam and creating a high pressure area in front of the windshield. maybe i am wrong.

 

[MK 72 240]

Re: Zphreek is right ..my mistake...

Yup it's cowl induction I just miss labeled it.....
See ZmeFly I am trying this set-up on SU's not an injected engine however Tony D's thereories point to the fact that it would probably be way more benificial for you guys with F/I than it probably will work for me...(Go back into the older messages and look for ram air or cowl induction...Tony talks about the watercolumns and pressures on the Z's as being the highest approx. 3" from the front windsheild...If you F/I guys could turn your AFM's around you to could reap some awesome air pressures for blasting into your systems.... My biggest concern is going to be the reality of how the SU's will handle the air flow... Someone else here awhile ago said that SU's cant handle forced air but like tony says the system really won't kick in high pressure till you hit higher speeds and by then the piston's are already up on the SU's so well see...I have also thought about if neccasery adding additional weight to the pistons of the SU's to keep them from popping up....I guess some testing will be in order but luckily I have a extra Cowl and the plumbing should not hack anything up to bad so if all else fails I can go back to original!!!



Still hoping Tony D will input.............



Z ya later
Mike K

 

[Tony D]

I'm late for work...

Couldn't get on phorum last night, will have to reply tonight.
At 35, there is no ram air effect, there is no ram air effect at such a low speed unless you have a collector close to the whole frontal area of your car. Please go back and read some of the prior posts to verify this: the 8x28" scoop at the front of the car would give you about 8000cfm available at 60mph, a cone filter at 35 is still under vacuum during WOT, gar-un-teeed! It is indeed cowl induction, and briefly the routing sound about right. Put it to a plenum before the carbs, and I was always partial to the idea of putting the filter under the cowl out in the coillection area, instead of at the carbs. More this evening...

 

[MK 72 240]

Re: THANK YOU TONY!!

Wheewww i thought maybe I had flamed you by mistake and you wouldnt answer!! Do me a favor and goto Banter and Chat " hey MK 72 240" by zphreek...we have more updated ideas and that is where I could really use your input!

Thanks again for replieing!!!!!


Z ya later
Mike K