Does anyone on this forum know of an effective way to intercool a Fiero? I am considering a turbo for my V6 Fiero and want to also intercool. If anyone has done it and wants to share thier knowledge, I'd appreciate it.

Thanks,
Tim

I don't know of any intercooled fieros on the board, but there is someone with a water/alcohol injection system setup. I think his member name is Sluppy123. Try doing a search on water injection.

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

1987GT *for sale*, or trade, PM me for details.

I'm doing a 3.4 conv. When it's running OK, I'm going to try a turbo and innercooler. I have a turbo off a T-bird. Let's stay in touch.

I got one - Lots of work though

I ame going to put a intercooer on my father in law Fiero.

Last summer we have a small IC on it but it dont work so good.

Now we going to put a ladger one in it.

It is a 88 GT 3.4 (Camaro engin) With a superchager

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

www.carman.tk

[This message has been edited by CarMan (edited 04-17-2002).]

[This message has been edited by CarMan (edited 04-17-2002).]

Well son of a b...

How the heck did you do that?

We need more info, and tons more pics!

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

WOW!!! thats a neat setup!

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

The new IC is not in the car yet.
But we have run the superchger for 2 yers.

more pic and info
https://www.fiero.nl/forum/Forum1/HTML/016835.html

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

www.carman.tk

quote Originally posted by zeelebuba: I got one - Lots of work though

Can you give details??

Thanx

DreX

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

There really isnt enough room for an efficient air/air intercooler,Im looking into either water injection or liquid/air intercooler for my 3.4 turbo.

quote Originally posted by timdavis130: Does anyone on this forum know of an effective way to intercool a Fiero? I am considering a turbo for my V6 Fiero and want to also intercool. If anyone has done it and wants to share thier knowledge, I'd appreciate it. Thanks, Tim

i've got the irm rocker scoops and i've been thinking an intercooler would fit there. some would depend on the turbo-s/c setup and weather or not you'd lose pressure from having to run tubing too far. alsd don't know how much air they draw in and if a fan would be required or even help.

Steve Hamm in Cleveland has been running an intercooler for over a year. Steve spent a lot of time on the dyno and says the intercooler really does help. His worked over 2.8l has made over 325hp and 370lb-ft. He has the dyno sheets and I can vouch for the numbers. All of this was before he upgraded to a T3/T4 hybrid. No dyno numbers yet, but we expect around 375hp with similar torque.

Matt
86 GT, 5-spd
87 GT, 5-spd DOHC Turbo - in progress

I have a air/water intercooler and heat exchanger from a GMC Typhoon. I plan to use it with a 3.4 DOHC but it'll probably be next winter before I actually start doing anything with it.

The air/water box is about 8" x 10" x 4" deep with a 2" ? air inlet (same size as a T3/T4) and an oval air outlet (same size as a twin 52mm V8 throttle body). The heat exchanger is about 22" x 8" x 3" thick and has a pump mounted on it. The connecting water lines are 3/4" heater hose.

I intercooler is still fairly big but should still mount a LOT easier than trying to run tubing for an air/air unit. The heat exchanger should be able to be squeezed in front of the radiator, but since it's just water lines going to it, it could be mounted about anywhere it can get air flow.

Drex - I can get a couple better pics and some measurments tommorow for you - Its an intercooler of a daytona , 2" inlet/outlet

How about on top of the engine like a Subaru WRK has? Cover it with a decklid/hood scoop.

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

My Old Fiero | Accessories

Hi,

I'm mailing first time to the forum,
now I decided to do it because I really have something to share with you.

Even here in Northern Europe (Finland) we do have excellent products for Fiero.
If you are going to order something remember
that the comppany locate in Finland.

Please, check this web-site, nice water-air intercooler and headers for Fiero.
I'm also going to install those for mine Turbo 86SE.
http://www.amworks.com/

Select pictures page and Enjoy!

quote Originally posted by zeelebuba: Drex - I can get a couple better pics and some measurments tommorow for you - Its an intercooler of a daytona , 2" inlet/outlet

Thanx, I have an intercooler from a nissan 200sx (i guess, its a engine with 20r or something). It fits in the quater panel, I will pace it where the intake grill is. Your work look similar of what I was thinking to do. Your help will be appreciated.

Thanx

DreX

quote Originally posted by DreXteR: Hi, I saw that website before. Do you have the dyno sheet of the 500hp fiero?? Specs to share?? The intercooler & headres looks nice, the design is great, also the muffler design looks odd or just uncommon. http://www.amworks.com/gallery/eng/fieroturbobtype.htm Thanx DreX

Hi,

I'm sorry but I don't have dyno specs,
because I'm just a customer of his products.

You can contact him directly via web site and ask them.

I'm embarrased that I can't provide such dyno sheets. My first turbo 2.8 only have 220hp. (Without intercooler and 10psi boost)

But I'll try to manage better with my next engine!

Petri

An intercooler isn't necessary if you are not running upwards of 10 psi or more. If you do a good job of matching the right turbo to the engine that will help reduce unwanted heat in the air charge. You have to keep in mind that the intercooler is not 100% efficient, and that room constraints are going to limit the size you can use to reach a respectable efficiency. If you run 7 psi into an intercooler you are not going to get 7psi out of it. If you suffer a 2psi loss as a result of the intercooler, and the cooling effect does not produce enough added horsepower to exceed what you gave up in the 2psi, you have netted an overall loss. Turning up the boost to compensate for the loss is harder on the engine and is therefore not a reasonable solution. I used an intercooler from a Peugeot that fit right below the vent once the air filter canister assembly was removed. My exhaust exits on the backside of the motor so I was able to place the airfilter canister down low in front of the front trans mount and pipe it up to the turbo like a snorkel. I tested the above theory and sure enough I had more power without the intercooler than I had with it at 7psi boost. Do your research and it will save some wasted efforts.

I beg to differ.

If you are running 7 psi at the compressor outlet, then without an intercooler, you'll run aobut 7 psi in the intake manifold.

If you install an IC and your manifold boost drops to 5 psi, you'll loose power, unless your intercooler is 150% efficient.

Once you've installed your IC, you can turn the boost at the compressor outlet up to 9 psi, loose 2 through the IC, and still have 7 in the intake manifold. Turning the boost up to recover what an intercooler looses is not harder on the engine because you end up running the same boost in the manifold.

Yes and no. Do the math to get a better idea. My numbers show 242hp on my 3.4L at 7psi with a 70% efficient intercooler; 228hp at the same boost level without the IC; and 221hp with IC and 5psi assuming a 2psi loss.
Increase the boost to 10 psi and I get 272hp with IC, 247hp without IC;252hp with IC and 8psi assuming a 2psi loss. Now at the higher boost pressure the intercooler still produces more power with the 2psi loss than the the engine does without the IC and the full 10 psi. It defys the laws of physics to ignore the effects of increased boost pressures on the exhaust side of the engine to overcome poor efficiency as opposed to tackling the problem causing it directly.
You can compensate by increasing boost but only up to a certain degree. I'm speaking mainly within the limitations of the little street legal go-kart that most of us drive. You did state a 150% efficient intercooler, it's not possible to obtain that level of efficiency naturally. In other words if it's 80 degrees outside, the max the intercooler will be able to cool the intake charge is to the surrounding temperature, 80 degrees or 100% efficiency. 150% efficiency means you put 80 degree air in with 80 degree ambient temperature and get 40 degree air at the other end. The only way to do that is to apply a colder than surrounding air medium to the IC core, like ice for example. My experience with the above circumstance made me happier at the boost level I run without the IC. On the next setup I will use a bigger and better IC with more efficient plumbing and about 12 psi. That will better justify the addition of the IC. My sources are two turbo books and numerous articles from chevy high performance, car craft, and hot rod magazine turbo projects and tests.