On the way to and from Etown my friend and i monitored our intake temps...we communicated through CB's. My setup consisted of an intake box with stock ic. he had apexi intake with i think blitz ic. My intake temps were noticeable cooler to the tune of atleast 10 degrees celcious...more so during traffic in NYC.
After seeing that i am extremely happy that i went with a cold air box as opposed to an open filter.

 

some have the reasons to think that if you just get a good enouf intercooler u dont need to worry about the intake temps goign into the air filter all that much. it is a BIG diffrence to have a shield or a cold air box, more then some of u guy think.

 

Ya Think?

 

well look at that...i mean he has a better ic yet i still have much cooler intake temps....there is no argument for me anymore...box style is much better

 

I got the rx7fasion and it looks cool. One of things I didwas go under the car where the plastic radiator cover bolts to the underside of the car on the airbox side and sealed it with weatherstripping/black duct tape. I did that all around the area where the air enters the box. I found my cold air box is much better now. Alot of air was able to escape through the gaps, now its routed better.

 

Does he have a Blitz fmic or smic?

 

I got the Blitz SMIC, it sucks donkey *****. Dirty, sweaty, stinky donkey *****.

 

Why don't you like the Blitz??

 

it was a smic

 

Adam:
Of the TRUE STOCK MOUNT ICs (work w/ stock airbox & battery) The Blitz SMIC is not much bigger than STOCK (maybe 15%) its only advantage is that it is all aluminum.
The Greddy SMIC is much bigger than stock (over50%) and has Very good flow - The SR SMIC is about the same (50% bigger) but has fitment problems with thicker than stock radiators (the botom tank needs to be modified) Petit and PFS also offer true SMIC but I have never seen either in person.

 

actuall the BLITZ SMIC is WAY bigger than stock. its probably the thickest SMIC sold. Probably 2.5 times wider than the stock one. My problem with it is the heat soak after the car is turned off. Maybe all SMIC's are the same.

 

all smic heatsoak..you need a fan. Before buying any ic if i were you would research the hll out of them..they are a 1000-1500 investment. Check the how to sites!

 

well.. i have a scoot hood and i feel that is helping alot!!!

 

thickness has less effect on an intrcooler's (or radiator) ability to reject heat than plan area, as the core gets thicker the cooling air passing slows and stagnates in the core, also it gets heated as it passes through the core reducing the heat transfer ability for downstream portion of the core. For a given core design doubling the Plan area doubles the heat rejection but doubling the THICKNESS will only increase it by some smaller % (like 50-60%)

Also I thought the Blitz was only about 1.5 time thicker than stock.

The GREDDY because of its unique bottom tank design has a much larger plan area than as well as being thicker than stock.

 

oops

 

funny, how did this turn to an IC comparison?
One question did your friend make a heat shielding to block the radiator hot air?
I just made mine today.
That go all the way down to the radiator opening.
After some driving and I can tell the difference in temp. by touch.

 

when i talk to rx7 tuning shops they all have bad things to say about the greddy unit.

j

 

Anyone ever try an air-liquid intercooler. It should provide better heat transfer in a smaller size. Anyone know where to get one, how much, problems with installtion and/or operation?

 

i was wondering the same think...the purpose of this thread was to compare cool air intakes vs the open intake syatems....

To answer your question...no he doesnt have a heat shield.

 

Someone in NZ (I think) has hooked up the stock AC unit to their boost track, only with a larger condensor.

A very interresting idea.

 

One thing to remember when comparing intake temps via the PFC's Commander is that it's reading from the intake air thermosensor which is located under the UIM and heat soaks like a ****. I don't really consider it's readings very accurate or useful. I've been trying to find a reasonably priced system that will monitor temps at various places along the intake tract to do some real comparisons. That along with the dual pressure gauge I have that measures IC pressure drop should finally put some real imperical data behind the FMIC vs SMIC and Closed vs Open intake debates.

 

onother thing to consider...every degree that those turbos get cooler air is a plus...

heat bad...heat very bad.

I saw that rotary reliability is now making intercoolers as well as their new intake system....they are doing a medium m2 style and one that is nearly as large as the big m2 which has better fitment with the air dam around it and performs similar as well.

part of the reason to get a decent IC and a decent intake is for reliability reasons as well as performance. Ive said it before...heat bad..heat very bad.

two motors and three sets of turbos later almost all from heat damage and I can say that I speak from experience.


j

 

Artguy:
Got a pic or link to pics of these parts?

 

sp engineering makes one, it probes before/after ic air temperature, includes 2 temp probes. The price is around $280-300 off the top of my head. size is very compact, about the same size as L.E.D. clocks in some cars, like toyota mr2, camry etc. email me if you need one, i can get you cheap price.

Randy
rc7@import-showoff.com

 

hey.. how about a heat shield over stainless steel filters? is that comparable to the cold air box?