gah quit trying to argue just for the sake of arguing.
I hear spearco intercoolers are good quality and cheap, anyone have 1st hand experience with em?
buy it and find out mikey…
u will always find someone who hates anything…
i hate touge factory spacers, some people love them.
i LIKE APC yellow headlight bulbs, some people think they are ghey… whatever
… all turning up the boost on an already maxed out IC will do is increase the proportional drop across the intercooler. Simpler form, you can olny force so much air through a straw, regardless of the boost you use… all it will do is bust it open at it’s weakest point. picking the RIGHT IC, be it bar and plate or tube and fin is difficult to do as each has it’s advantages and disadvantages. ( there is actually a 3rd style that is fairly new and very rare to find, it’s called a carbon foam IC… the only place it’s used right now is F1 and a few other formula series… but I’ll leave that till I can foind a source for it ) …
the EASIEST way , call it the mr dressup school of IC sizing ) is to match your turbos max lbs/min ( air weights .08lbs/cubic ft ) rating to your IC max CFM or HP rating… that’s it… There are allot of holes in this but you generally can’t go wrong with this method. ( lbs/min ratings are also ’ sort of’ decribed as XXX hp ) if you take the gernerality of 10lbs/min =100hp then a turbo that flows 34lbs/min will make 340hp ( this is what is called ballparking )
but it works well for the avg consumer.
So if a reputable retailer of IC 's says that " this IC will flow 400 hp " then you can roughly assume that the turbo it will fit to , at a max flow rating, is a 40lbs/min turbo… ( BUT!! and this is a big but… you need to find out what the pressure drop off is at max flow rate…!!)
A few more 'basic ’ tennants to at least think about ; tube and fin = cools better as their is more surface contact with the air molecules as they travel end to end… drawback, T&F IC’s also have the greatest flow resistance becuse of the ammount cooling infs inside the tube .
The pictures you see of the griffin and the smaller tube and fin should be compared, the lower one isa smaller tube core that’s extruded , your losses will be much higher per given volume the griffin is a led soldered fin core, more sxpensive but the flow losses are greatly reduced , this means you can use a tube and fin , with beter cooling ability and have less pressure loss … this is why you’d go with a griffin over the the other T&F design…
Bar and plate , flows the greatest volume of air with the least ammount of loss, however it does not cool as well becuse thier isn’t the same ammount of cooling surfaces for the air molecules to contact… For similar CFM flow rates you can run an bar and plate IC that’s between 20-50% smaller in size and get the smae ammount of flow as you would in a tube and fin. ( but not the same cooling effect ) Bar and plate should be used with cars that are working at the higher boost ranges of the specific engine they are working with… with the SR , anything above 18psi should seriously consider a bar and plate cooler instead of a tube and fin…
also , most tube and fin are generally made to a higher standard then tube and fin becuse of the core costs associated with bar and plate, Two cores to look for in bar and plate are BELL and SPEARCO cores…
hope this helps a bit, I am tying this in the grips of a neo citran, asprin and buckley’s 'shroom like high…
EDIT: thanks to IQuabob for reopening the post so i could make a correction to an error.
Well put (considering your state of mind). Also it should be noted that a greater number of shorter passages will flow better than fewer longer ones, given the same frontal area and efficiency.
Now THAT is an informative post.
Good to see some people realize what the differences are.
i realize what the differences are. But you never once stated them.
I come to think Carleton must have been a shitty University.
Andrew.
now now … don’t make me send you eng. nerds to the corner of your bucky balls.
I almost went to Carleton actually. Decided I didn’t want to leave the good ol’ GTA thou
EDIT: Also an enginerd… The Aerospace kind
roto I tend to have a little more hands on experience with mech eng stuff, and I have common sense. I find alot of the engineers I have to work with on projects always rely on theory and their calculations when abviously somethine will not work. It is really hard to prove them wrong untill the prototype is done and it doesn’t work :lol:
So yes, someone of your knowledge could put alot of freshy engineers to RIP, I will admit.
By the way, I always enjoy reading your replies man. They are always well informative and obviously have alot of hands on experience behind them. Keep em coming 
Andrew.
NOTE: Some of the formulas came out strangely not aligned… Put the pieces together…
Temperature rise through the compressor outlet temperature (Tco) minus ambient temp (Ta)
Temperature Rise = Tco - Ta
Heat removed by the intercooler is the temp difference between air exiting the compressor (Tco) and air exiting the intercooler (Tio)
Temp removed = Tco - Tio
IC efficiency (Ei) is then the temperature removed divided by temperature rise:
Ei = Tco - Tio
_______
Tco - Ta
Use this to calculate your intercooler efficiency…
Pressure loss through an IC system is determined by the internal flow area of the core.
Internal flow area = channel length x channel width x number of channels
For core sizing once the internal flow area has been calced, actual core size and shape can be determined. With most cores approx 45% of the charge air face is available for entry into the air tubes. To find the required area of the air charge face, divide internal flow area by the 45% figure. Cores with longer channels tend to reduce internal flow area.
IE.
Area of charge face = 25in^2
______ = 56 in^2
3in
For a 3 inch thick core
Width = 56in^2
______ = 19in
3in
Replace bottom value with thickness of core depending on application…
Frontal area
Air flow = s x a
Let s = 60mph and a =2sq ft
Airflow rate = 60mi/hour x 2 ft^2 x 5280 ft/mi x 1/60 hr/min = 10560cfm
A streamlined core is a more efficient core, and can clearly flow more.
Use these calculations to help choose you’re IC based on it’s characteristics and your setup… rather then the sales reps propeghanda…
You really need to chill the fuuck out, Andrew. I’m growing tiresome of your BS. Get over it.
I am going to be making another GB for IC’s on monday. If you dont like it don’t post. I have been a member longer then most of all of you so just stay away.
Every one has there right to talk but i am just trying to get a good price for a few ppl. Sure its not top notch but who cares. Like bing said its better then nothing. Andwer found anoter product so i will be posting that too… If you rember I said i was open to other options and that was just one of them. Insted of bad mothing it you could of just posted different one.
If your intrested in the new ones or have some good ideas you can post monday.
Some one lock this fourm.
what a waste.
you guys treally need to grow up…
all the answers in here were so backhanded and eveil that i didnt even want to read them all.
you want an intercooler? buy one
you dont want an intercooler? dont buy one
you dont have anything that will help or promote the sale? SHUT THE FUK UP.
IF I SEE ANY BS IN THE NEW GB THREAD… YOUR BANNED.
i should have to be such an asshole like this
GT