Which year intake will fit a 85gt

I used a Del Slow CAI. Pics at link.
http://home.cfl.rr.com/fierose/intake.html

------------------

****************************************
86 SE Needs every thing but a Motor & Sunroof Seal!!! Now for Sale! $1200.00
http://home.cfl.rr.com/fierose
Web Master
Central Florida Fieros
http://www.centralfloridafieros.com
Will entertain for SIG! Photoshop Challenged. Only you can help stop Text Sig's!

That's the intake I have too, except the part comes from a speed shop. It is a generic clone part for CRX with blue plastic parts where the yellow and black parts in the pic.

I especially like the rubber baffle to the wheel well in the pic.

I think I'll do that too.

I have an issue with the K&N filter getting alot of dirt. Obviously it is coming from under the car or thru the engine compartment.

I am going to improve my side air intake set up with a properly designed scoop to increase the access of clean outside air.

------------------
Arn Brown

How do you find the cold air set up?
Obviously it has some cosmetic value, but overall performance? Any?
Thanks James.

i have heard that most people that change the intake either loose power or it stays the same

88-91 Honda Civic CRX short ram intake is the one I have in my car. Fits/works great!

Cold air will be an experiment for me.

I did not own the car when the CRX intake was installed, so I can't say how it improved.

Cold air can only make things better.

Like I said, the K&N in the fender well in front of the wheel well liner, gets pretty dirty. I guess it is drawing air from under the car or the engine compartment. I am going to fix that.

I will be doing that at the same time as porting the exhaust. Porting is good for some horsepower, and the cleaner cooler air up front can only help in my opinion.

I'll post what I find.

I ran my car at the track, the same day, with a stock setup, then just a filter on the end of the rubber elbow. (as well later with a CRX intake)

I found that with the stock box, I got better 1/8th mile performance, where as with the filter on the end, I was a bit slower to the 1/8, but had higher mph at the end of the 1/4 mile. With these setup, the 1/4mi time didn't change, they were practically the same either way, but my mph was consistantly higher with just the filter.

When I swtiched the the CRX, the mph was up another 2 mph consistant, and was average a bit quicker...

------------------

--1986 SE V6, Wild Custom Notchback
--1984 SE Modified Notchback

quote Originally posted by Arns85GT: Cold air can only make things better.

?????? The Fiero already has an excellent cold air intake system. If you add a K&N filter to it I seriously doubt that you will improve it. Using a metal tube as the intake is a big step backwards. Shiney metal tubes might look cool but they are conducting a lot of radiant heat which is very bad. If you use a metal tube it should be insulated to prevent radiant heat from being conducted inside. Sucking air from under the car and around the engine is another big step backward. Seems to me many of you have gotten caught up in the ricer mentality that makes you want to put the same showy gadgets on your cars without seriously considering the ramifacations. IMHO

------------------

Red 88 GT T-Top 3800 INTERCOOLED SUPERCHARGED
White 88 GT Stock
Please give me a rating if you appreciate my contribution.
History of Skitimes Car UPDATED 8-11-03

I have a 3800sc with a crx intake.
I had thought about insulating it from heat, unitl I checked one day and after 2 hours of driving my intake pipe was still ice cold.
I do have large side scoops??? Maybe thats why but I do not see the heat being an issue no more than the thin factory dryer duct.

[This message has been edited by jb1 (edited 09-15-2003).]

I have seen some of the CRX intakes that are 2.25" tubing. Doesn't sound like much of an improvement. I made mine out of 3" aluminum tubing to 4" cone filter, all ceramic coated.
Problem is, there is not a lot of room between the inner liner and the body....Paul

Opinions are just that. Opinions. Real times measurements (track, dyno, G-techs, cops radar) will tell a solid story. On a stock 2.8 you may not see too much. In my moded 3.4 I droped 0.4s 0-60 (G-tech) with my cold air 3" pipe setup.

------------------

Any air filter thats in the engine compartment is more like a Hot Air Intake . I really don't understand the point of this "mod".

I'd recommend not useing the CRX intake with the 3800sc, perhaps the 2.8 but definately not the 3800sc. I tried it and the results were so obvious, that I thought the SC was venting. Although it sounds cool, it definatly restricts the intake greatly. So I'd agree with Skitime in that you should just put something in there if it looks neat, make sure the total restriction it your main issue.

------------------
02' 3800SC Poly, Koni, 17" 245-40's, "RWD" V6SC>V8 ;)

StansGT,

Are we talking about the same intake?

The CRX I am referring to is 3" ID.

I have mine hooked up to a K&N filter

It definitely does not restrict.

But you are right about one thing, it does definitely sound cool.

quote Originally posted by ManiMack: Any air filter thats in the engine compartment is more like a Hot Air Intake . I really don't understand the point of this "mod".

The air filter is not in the engine bay.

I dont see it as being any performance improvement , it does more for looks.
I had the stock 2.8 air canister on it when we first completed install. Swapped to CRX intake about 2 weeks later, I really could not tell a differance.
As far as a .4 differance I would guess there are many other factors involved. Everytime I ever made a pass on the track I would be extremly happy to keep every run within .4
but again I am not claiming any increase from it either. to each his own I guess.

I ask the same thing as Arns85GT: Are we talking about the same CRX tube? I know some are using the "Short Ram" hot air intake, but some say the CRX cold air intake is 2.25"? Mine is also a 3" ID, while the 3800SC throttle body is 3.25" diameter. I don't see that being too much (if at all) of a restriction.. I guess time (and a dyno) will tell...

------------------
Bob Williams
Multi-colored '87 Mutt, a work in progress! (3800SC installation in super-slow-motion progress... It's bolted in now and runs!!! WOOHOO!! It works!! It works!! It works!! Did I mention IT WORKS!?!?)

It is a short ram on a crx, but on the fiero it goes to the same plce the factory intake tube draws cold air from. a cold air for a crx would be too long for the fiero.
The one I have is 3" aswell.

JB1,

I don't understand your description.

The CRX intake on mine goes thru the frame into the wheelwell.

The air comes into that cavity from under the car and thru the side vent.

It may get some engine compartment air because I don't have a rubber baffle around the intake pipe where it goes thru the squared off hole in the frame. (This is going to change.)

If the 3800 intake is 3.25 I understand that 3" is smaller, but I am talking about a 2.8.

Cooler air is very desirable, and the high flow K&N filter on a 3" pipe is a pretty hard intake to beat for a 2.8 without going to RAM air and the the modifications required for that.

I had a friend, who is more knowledgable than me, educate me recently on all the reasons not to go to RAM air scoop which are mainly modifications required to handle the extra air pressure in combustion.

But the 3" air intake on the 2.8 works nicely with freeing up the motor to breath and giving it fresher air.

Hey Arns85GT
just for shits and giggles, try something for your self. Take your K&N filter and connect is directly to your intake runner, then run it like you are drag racing.... Trust me, youll feel an obvious difference.

The long tube, create a vortex inference that slows the air going into your intake. the reason this happens is the first bend is the opposite of the second bend, causeing it to tumble. The main reason this wont work so hot for the SC's motors is it draws a certain amount of air say at mid thottle, when you punch it, suddenly your intake opens quickly, and that air in the tube creates a vacuum, (be it a small vacuum). Think of a vacuum hose... striaght hose= less noise, bendy hose= lots of noise, noise=restriction...

Anyway, to sum things up a bit, it didnt work for me, but if you like it, Id say go for it... I thought I'd just tell what my experience was.

Thanks StansGT,

I am going to the track on Saturday for test and tune.

I can do exactly as you say, however, how do you hook up the vaccuum line, or do you just plug it off?

Admittedly the air is warmer, and I understand your point about tumbling air.

How does the difference show up under full throttle?

------------------
Arn Brown

Arns
I was replying to Riceburners post.
He was talking about the CRX cold air being 2.25". I was just saying the CRX cold air is too long , you have to use the CRX short ram.

When i got mine off of ebay it was advertised as a 88?-91 CRX cold air intake, it is 2.75" pipe and I have no complaints, works great, fit perfict and my Zex Ejector cone i got at the end well

------------------
1988 Formula 2M6 5 Speed - CRX Intake, NOS dry kit, ZEX Ejector Air Amplifier, Taylor Wires, NGK UR5 plugs, MSD 6AL Ignition /w 2 step rev control, MSD Blaster 3 coil, WCF dog bone, WCF engine mount, Autometer Ultra-Lite guages (A/F,Vac.), KYB GR2's, Sequential turn signals, Rapid 3rd brake light....

quote Originally posted by skitime: ?????? The Fiero already has an excellent cold air intake system. If you add a K&N filter to it I seriously doubt that you will improve it. Using a metal tube as the intake is a big step backwards. Shiney metal tubes might look cool but they are conducting a lot of radiant heat which is very bad. If you use a metal tube it should be insulated to prevent radiant heat from being conducted inside. Sucking air from under the car and around the engine is another big step backward. Seems to me many of you have gotten caught up in the ricer mentality that makes you want to put the same showy gadgets on your cars without seriously considering the ramifacations. IMHO

I have to agree with Dave on this one. The stock Fiero air intake system is quite unrestrictive. It also draws in cold outside air.
As verified by the Herb Adams dynos tests of a few years ago even removing the air filter did nothing to improve engine power. This confirmed that the stock GM design was excellent. I changed the element to K&N, added a side scoop and removed the baffle in the air box . I won't claim that this gave me any more power but it's an upgrade for a lifetime filter.
I don't believe that there is a need to waste money on shiny rice/rapper accessories when you already have an efficient cold outside air intake in your Fiero.

------------------
87GT 3.4 Turbo Best 0-60 5.2 seconds
http://www.turbochargerpower.com/turbo.htm

one more thought for StanGT about turbulence.

IF the CRX metal 3" tube with 2 shallow bends creates turbulence, and so provides less air, then what about a vacuum cleaner? They have the kinkiest, curliest, roughest and most convoluted air flow, but manage to get alot of air thru the filter.

The reason is suction. IF you are driving air forward, or pushing thru air, any change in direction of the air flow causes turbulence.

If you are sucking air, in other words a continual negative atmosphere pulling, the potential for turbulence is reduced exponentially.

The air will infact take the line of least resistance. That line is created at the openning. The air is drawn in 360 degrees around the tube. The line of least resistance is straight down the wall of the tube. In other words, the highest air speed is on the wall of the tube, and the air is not tumbling down the center. For this reason, the walls of the tube will feel cooler than the surrounding material, even after a hard run.

What could be at issue is the availability of air and how hard it is to draw. Put a 10 foot tube in there and the vacuum required to pull the air would likely increase somewhat.

The few inches of tube on the CRX lead me to believe that it actually facilitates higher air volume due to the channelling of unobstructed air flow down smooth walls and the resulting air speed achieved.

The question is, did Honda ever do air flow tests on the unit to determine the CFM being delivered? I am pretty confident that a CFM test would show air delivered on suction direct from the K&N filter to be about the same as the CRX pipe with a K&N on the end.

The difference might well be the availability of clean air flow to service the K&N in the wheel well verses in the engine compartment.

This sounds like a good sales pitch for a properly designed and air efficient side scoop to me.

Does this make sense?

------------------
Arn Brown

Hey Dennis L, I hope you read this post again.

My question is while I was putting on my AUS II scoops I threw out my old intake (cannister, most of the plumbing) thinking it would no longer be necessary.

Now as I get ready to do a 3.4 TDC (turbo) swap this fall, would you have any ideas on what set-up I should do. Stay stock, and buy new plumbing, or by a 3.4 tdc intake from a grand prix.

-And what about an intercooler if I run 13-14lbs boost. The engine will be ready to handle it (I'm working with DKOV/WCF on that part). Use a Saab IC under the left rear vent. Any thoughts?

------------------
Help, Someone has lit a Fiero in my a#@!