I serched this topic for an hour and couldnt find the info i was lookin for im sry if this has been coverd already.....i bought a bm xtreme 180 fan and i was wondering if anyone else has installed this fan...if so how did you modify it to fit around the upper and lower rad hose...or did you just move it over a couple inches?? thanx ahead of time for any replies.....

 

I just read a post on this and it said not to use aftermarket fans?

 

stock pulls like a **** if working, i trust it over any e-fan

 

If you install an aftermarket electric fan, you need to custom make a shroud that covers the entire radiator for a good pull. Most guys just slap the fan right on top of the RAD and this is not very effective...do it right plus you got to make sure that fan pulls 2200cfm + on a N/A .Turbo models would obviously be more

 

first of the stock fan shroud and fan look like ****..if you have a e fan on there it looks much better and my fan has a built in shroud and its the same size as the rad..and it pulls 3300 cfm...its supossed to be the best e fan u can get for a rx7...does anyone have the same fan installed???

 

anyone have any pics of an install??

 

Electric Fan installation is covered in the FAQ for FC sticky thread.

 

http://www.aaroncake.net/rx-7/efaninstall.htm for fan installation instructions (generic).

http://www.aaroncake.net/rx-7/efanmyth.htm for fan myths and corrections.

 

I just talked to Dave at KDRotary in PA. Yes, the stock fan flows a lot. If it's working, great. If you plan on upgrading your radiator or front mount intercooler piping, you might want to consider an electric fan. He recommended the Black Magic as well, as long as if flows at least 2700+ cfm. He also noted the importance of proper installation.
If I'm waiting in between 1/4 mile runs or autocross runs, I would like to toggle my fan or have it run with the turbo timer. He said it could free up to 5 hp. He said the installation is very easy. Read the link above my reply.

 

i know how to install and wire the E fan and ifve read the FAQ section. but i was wondering about a specific fan install.. i was wondering if people who used the black magic 180 had to trim the shroud to fit around the upper and lower rad hose connectors..

 

Did you people not read the write up by aaron cake, it explains EXACTLY what your looking for is not what you want, (hp gain). Great write up by the way.

 

lol im not looking for hp gain im looking for a clean engine bay without that gay cluch fan and shroud..and i like to be able to leave it on in the pits to help cool the engine when its NOT running...plus i hate the sound of that loud *** clutch fan...and it just looks alot better then the stock fan.....................

 

Wow, some people just don't read the original posters question... I have this fan in my car.

The BM 180 Extreme has a shroud and it just about covers the whole radiator, no need to make a shroud for it...

If you have a Koyo then you will have to trim a bit of the shroud around the upper neck OR you can have someone kinda melt\reform the sections of the shroud that contact the radiator necks. Mine is trimmed to fit so theres a gap there that I need to find a way to cover at some point. I recently saw an FC with a koyo and BM 180 and they had reshaped the shroud to kinda flatten that section instead of trimming it. It looked NICE, I wish I had done that with mine when I saw it.

 

thanx for the help... i think ill take a heat gun and try to reform it to fit...that sounds like the best thing to do

 

btw did you have to upgrade your alt. i know this thing really pulls alot of volts

 

i went with the fiero fan its shroud covers almost perfecty only a inch or so on one of the sides it doesnt catch but its also powerful and pulls good enough cfm for my turbo II without any problems

 

There is no need to "upgrade" the cooling fan because you're changing he radiator. Upgrading the radiator allows you to make more power without overheating, but the amount of power the engine's making has no bearing on the fan. The stock fan will work just as well on a 500hp engine as it will a stock one because when the fan is actually needed (low speed and stopped), the engine is making only a fraction of it's peak power.

While I think these are silly reasons to spend money replacing a perfectly functional stock, at least you're not doing it because you think you'll get better cooling or more power. That's a refreshing change around here...

 

that is correct im doing this mod just for looks, more room and the ability to run the fan with the engine off to cool it in the pits

 

You'd get better far cooling simply by opening the hood rather than blowing air off a radiator at 180deg...

 

When I installed this fan I already had an FD alt. This fan does pull some hefty power so I think upgrading the alt to at least an FD alt would be a good idea but I'm not sure if it is 100% needed. Depends on your setup and what other power draws you may have added(steroe etc.).

 

You mean "amps" not "volts".
Wow, don't you just love all the anti-efan group shitting in threads like this?


-Ted

 

yeah sorry i ment amps not volts sry.....and yeah i luv all the support im gettin on installing this e fan.....dosent anyone else here think a e fan looks alot better than the stock one...and if i was worried about spending some money on silly things like this i wouldnt own a rx7...because i think we all know there money pits and i have some layin around so why not throw it in the pit for something that i feel makes it look alot better.

 

I been thinking of doing a efan also for the room. A lot of people on the boards seem to think its not worth it or needed. So idk wat to do yet, cuz I'm also running on stock s4 alt.

 

and E fan pretty much requires a upgraded or excellent condition alt.

Most E-fans will draw anywhere from 20-70 amps peak on start up and anywhere from 15-40 amps when running.

You need around 20-25 amps for lighting at night.

You need around 20-25 amps to run the motor.

Its about 10 amps for the brake lights on.

Most aftermarket stereo's draw anywhere from 10-50 amps on average.

A stock S4 alt puts out 70 amps peak in excellent condition, a stock S5 alt puts out 80 amps peak in excellent condition.

Do the math before spending the money.

 

Ya dats wat I mean.