I am finally going to make the radiator shroud out of a stock aluminum piece for a koyo radiator 87 TII. Any ideas, suggestions, measurements, installation tips, or pics of your shroud would be great as well. Thanks!

 

Its supposed to be bolt on.

Mine was. Didn't change anything.

 

Pics of the old steel one that I made for the stocker. Ignore the bench.... has since been replaced with a a solid SS one . StarScream owns the whole setup now. BTW L if you read this - PM me man... I wanna make sure you got everything

 

somebody should make these....as popular as the koyo rad is for our cars...if somebody made a shroud to fit them...they'd probably sell a good # of them. I'd buy one.

 

How much would you pay though? Without one of those really ubber adjustable brakes you are forced to do it the way I did and weld it together. I could have made a few bends instead of cutting had my brake been bigger. Otherwise you need a bunch of different peices and it becomes kinda time consuming. If that took me ~4 hours & I charge $50 an hour, would you buy one?

 

http://www.sneedspeedshop.com/

 

As usual with FC products....demand isn't the problem. Its purchasing. As in no one actually does it, but everyone says they'd like to/are going to.

But in most cases, people buy fans that come with shrouds and then you jsut make some brackets. The most popular fan for the 7 is a Taurus fan because it works well and comes as a shrouded unit that you simply make brakets for. Very simple stuff.

 

That sneedspeed one is still generic. No boltholes drilled etc...

The taurus fan is ridiculously ineffiecient. Way too many amps, bad seal with the rad. I had a little 16" pull 11.7A (supposedly) but it pulled air through the whole rad so it made the most use og the energy that it was stealing.

 

I'd pay $100 for a shroud....the ones on that Sneed Speed Shop below is $130 WITH a fan and it says it'll fit a koyo....so yea...I'd pay $100 for a shroud made to fit the koyo..if I didn't already have a fan, I'd probably pick that one up from sneed. I'd never heard of them before but it looks like they're in NC as well.

 

Well, it may not be made for JUST the koyo, but drilling the holes to match is the easy part. I wouldn't mind that at all. Again, if somebody can make that one that is "generic" I'm sure somebody could just as easily make one specifically for the KOYO and sell it for the same price. You seem almost defensive about not making one. Nobody said you had to...calm down.

 

LOL! I drilled 4 holes in the aluminum and it bolted directly onto the Koyo rad.

Wow thats soooo much work!!

 

So you actually used the sneed speed shroud? Would you happen to have any pics of it installed? I'm using the stock shroud on my koyo, and it works I guess, but not the best setup IMO.

 

I never said I used it But it does work well, sealing etc. is all a matter of how well you do it. Same can be said for anything that isn't an absolute direct bolt on plug in kit with zero modification and comes with all necessary hardware (ie. too expensive for most FC owners to consider)

There's many other options though, like the one R.P.M. linked to.

 

here it is ......... RPMs bolting skills are respected by mechanics and do-it-yourselfers across the country.

add that minute to the invoice

 

It's not just drilling holes.... think about how much air is being pulled by the fan through the gaps where it's not sealed. Air will follow the path of least resistance. To me, that is half assed. Look at just about any factory shroud. It will cover and seal to virtually 100% of the core. There is a reason for that.

I am calm

I agree that most FC owners won't pay. But I always remember what my grandfaterh told me - A lazy man will work twice as hard as a hard working man.

 

it would appear on the surface to be a possible shortcoming, but air flow is a function of temperature and pressure gradients . High to Low . The pressure gradients created by the fan will dominate over the temperature gradients and the low pressure created within the blade area of the fan, and directly in front of the radiator fins , will be significantly larger than at the edges of the blade area where a few open areas of the shroud exist . The proportion of air flow through the rad "lost" to these small openings will be insignifcant to the overall 2000 + cfm. And this is at a stop light, the pressure gradient across the radiator fins at slow speeds will be even greater with air pressures increasing slightly on the outside of the rad. The only way I could see the openings becomeing an issue is if 50% of the rad was plugged with bugs

 

The stock fan and shroud worked fine with my Koyo, I just had to buid some spacer hardware for the shroud.

 

+1, keep your clutch fans

 

how hard is it to replace the oem one to any other radiator like the KOYO?

 

That is a good idea to create a shroud that everyone would buy. maybe one of the carbon fiber dudes or sellers in this forum can engineer something for the koyo instead of focusing on carbon fiber shifter covers. I would pay $100 easy for a good looking shroud such as the one pictured above.

Calling on someone to step up!

 

http://www.sneedspeedshop.com/

 

ya need to understand a few things about me
I'm as *******
Obsessive compulsive
Concrete Sequential to a fault
A perfectionist
and very frank

I think the Sneedspeed design leave alot to be desired. Something that's being advertised as fitting a certain car should do so out of the box. End of discussion. You can probably buy a shroud from Summit for ~$40 make the same cuts to clear the hoses and viola, done for almost half the price. Go to Sherco-auto.com for the fans.... I did - twice now. You shouldn't have to drill holes to make it fit... wtf? Half assed. Leaving holes in the shroud... half assed. Is it better than just bolting something on, hells yeah. Is that shroug the cats meow? **** no... Is Mine - No. My point is - go big or go home, do it right or don't do it at all, sitting at a stop light with no real pressure variant I see those holes as being a potential problem.

 

that sneedspeed shroud looks really tacky and poorly made. the corners where the hoses are, arent even coverd. they just chopped off the corners w/o making a seal around the entire radiator core. kinda useless at that point b/c it will start to pull air from those corner chops. your wasting your money with them. for around $70 there's a guy on ebay who'll make your shroud to spec.

if your going to fab something up, make sure to cover the entire core and seal it as best as possible. this way the air will be pulled from one side THROUGH the other, not the corners out. i made mine to fit the core of the rad. TitaniumTT has the right idea w/ the black shroud that he fabbed. mine's very similar.

 

Here is my Shroud. A piece of aluminum fro Home Depot, $20, Riveter, $16, Rivets $2, for a grand total of $38. I basically made it 3/4" high and used rivets to male the box itself. I also added stiffener plates inside to reduce vibration and add strenght to the aluminum. I did not want it too flimsy. I then riveted to th eradiator side themselves and used zip ties for installation and quick removal of the fan, then RTV the edges. Total, 3 hours.

 

sexy!!