V mount..shorter piping better throttle response. There is ducting goin into it, mess up the air coming out of the radiator????thats why you get a electric fan.

 

Where's the V? I saw this a couple of weeks ago. More like a T mount.
:monkeypis That IC setup

 

Maybe he owned a WRX previously. :gaylaugh

Radiator + fan = hot air rising right onto I/C

 

i wouldn't call that a v-mount. more like "i wanted a v-mount but stopped just short" mount

 

A WRX at least has a functional scoop to push air through the IC. :supercool

 

yah. i knew it was a try at a V mount.

but what a shitty one

if it really had good ducting coming from the front of the car it would be int eh way of air tryign to get out of th radiator. mess up the flow.

theres no ducting anywhere no hood scoop. no nothing. a perfectly good waste of a IC, lol. might as well be one of those guetto black pipes or plastic ones like he has coming from teh turbo.

if the IC system is built like this i wonder how the rest of the car is

 

I didnt even look at the other pics before,, there is no ducting..looks shitty

 

i dont think its such a bad idea. it leaves the radiator to get just as much flow as it did stock. shorter tubes to the IC mean less has to be pressurized which means faster spool up. as long as he has a radiator shroud underneath the ic, hes not getting that heat.

he should def have some sort of scoop that directs fresh air from somewhere else tho...like already mentioned. maybe an invader style hood from VIS or the sort.

 

He's cutting maybe 3 ft of tubing out of the setup. and thats maybe. If you have an efficient set up at all, there is no way you would ever feel that tiny amount of spool up. Going from my stock WRX TMIC to my FMIC there was no difference. You can see in the pic there is no shroud. Though the exit vent hood might help. I just think the guy was lazy or ran out of U bend. (or just didn't know what he was doing) :smacked49

 

haha...i too had a wrx. the only reason you didnt notice a difference in switching from top mount to front mount is probably b/c u didnt upgrade your turbo. the stock top mount works fine with the stock turbo even when boosted beyond stock levels. 3 feet of tubing is a lot and i can promise it makes a difference. this is why some people choose to upgrade top mounts on their wrx instead of front mounts to save those precious seconds of spool up. it makes a difference.

 

So what you are saying is the turbo is what causes the increased spool up time, not the FMIC. People that upgrade top mounts are wasting their money.

 

Sort of. The turbo is solely responsible for spool up time. Intercooler piping length and core efficiency are responsible for throttle response and noticeable spool time.

Make sense?

~matt

 

I know what he meant. But what he said was that the turbo is responsible for it all, not the IC. Trust me I have all over the place and back with turbo set ups. See sig. I was just saying that unless you have a terribly inefficient core, or are going from some dinky little side mount to a 30x18x4 core, you are most likely never going to feel any difference in spool up time. At least not enough to put your core in heat soak happy position like in the pic. :eek3dance

 

Yeah im thinking about doing the V mount style for my I/C but then It might make me want to buy one of those hoods from Vis that has a vent by the I/C

 

I know what he meant. But what he said was that the turbo is responsible for it all, not the IC. Trust me I have all over the place and back with turbo set ups. See sig. I was just saying that unless you have a terribly inefficient core, or are going from some dinky little side mount to a 30x18x4 core, you are most likely never going to feel any difference in spool up time. At least not enough to put your core in heat soak happy position like in the pic. :eek3dance

While you may not feel a 300rpm (random number here) increase in spool time, it does make a difference. It may not be an appreciable difference for drag racing, but if you look at the original use of V-Mount intercooler setups (circuit racing), and then think about a full 30 minute race. That fraction of a second you transition faster to boost multiplied times the hundreds of boost transitions that occur during a race really do add up.

Also, you have to consider that the stupid setup on that ebay car is not a VMIC setup. Sure, he has the intercooler mounted horizontally, but the radiator is still in the stock position. In a true V-Mount setup, the intercooler and radiator get angled at about a 30 degree angle making a sideways "V" shape like this ">" in front of the motor. Couple that with a few puller fans below the radiator, some ductwork, and possibly a hood duct and you end up with a far superior cooling setup than having the intercooler vertically with the radiator behind it.

If you think of the physics of it, with proper ducting to assure no air leaks you're creating a high pressure area in the center of the ">", and two low pressure areas )(above the intercooler and below the radiator). Now remember the tendency of air to flow from high pressure to low pressure areas. You've now managed to increase the airflow speed across your radiator and intercooler just by changing their layout.

I've researched this to hell and back...I've even got the designs laid out for brackets to relocate my radiator/intercooler for a v-mount setup. I'll eventually get around to doing it.

~matt

 

Huh? Are you explaining this to me? lol I know all about V mounts. My point was, data logged info using my EMS showed no difference in spoolup between my TMIC and FMIC. Besides, when you are road or circuit racing, who's not in boost all the time? Unless you can't shift or have a turbo that spools 1000 rpms before redline, you should always be on boost. Not waiting for spool. True V mounts work very well, I just don't think the trade off is worth the work in a street car. Though I will say it is much easier to do in an RX-7 or 240 or other similarly set up cars where you have lots of room. It definitely wasn't feasible without some hacking on my WRX. :thumbsup

 

I've researched this to hell and back...I've even got the designs laid out for brackets to relocate my radiator/intercooler for a v-mount setup. I'll eventually get around to doing it.

Can you post this design or do a writeup once you do it?

I really would love to do my own V-mount if I ever get an SR.

 

Huh? Are you explaining this to me? lol I know all about V mounts. My point was, data logged info using my EMS showed no difference in spoolup between my TMIC and FMIC. Besides, when you are road or circuit racing, who's not in boost all the time? Unless you can't shift or have a turbo that spools 1000 rpms before redline, you should always be on boost. Not waiting for spool. True V mounts work very well, I just don't think the trade off is worth the work in a street car. Though I will say it is much easier to do in an RX-7 or 240 or other similarly set up cars where you have lots of room. It definitely wasn't feasible without some hacking on my WRX. :thumbsup

It was more just for general information.

You mentioned data-logging no real difference. What kind of car was it on, was the piping route more efficient, what standalone are you logging with? I'm just curious since this is the type of testing I was planning on doing with my car should I eventually go the VMIC route.

~matt

 

top mounts are also known as INTER WARMERS cause they get hot cause of the engine heat, and hot air rises, right?
if u have it mounted right infront of the engine, but horizontally, you can make an air scoop/belt shield, that curves upwards after the radiator, and it will direct air right to the vmount. and the shoter piping does take about 500-1000 rpm off a spool.

it doesnt really take it off persay,, but it comes on harder and less time is taken since there is less tubing.. with high boost applications and light engine internals and a very good valvetrain.. you will notice gargantuan imporvements, simply because air is key, and if u get it faster, its better. injectors and fuel pumps are the last thing to do work in the whole process (other than sparkplugs) so if your cams are tuned right, and ur valves are lighter than leaves, then the air which is quickly forced in will find its place alot faster. and then the injectors will throw the needed amount of fuel in there to compensate for it, so you will gain a little more power down low.. and you wont experience LAG as much, which is the exact reason why it works how it does.


so thats basically it, if u have a good v moutn setup and it chills the intercooler correctly and efficiently, you will get less lag.

 

lol

i know some kids that run that setup i nthe winter..... they say they have the same performance and becasue the core is at a stable temp constantly , they only get boost creep and boost spikes for the first 5 minutes of driving... just some i/c food for though... i would do it... well then again.. i wouldnt run an sr20'ed rwd 240 in the winter :12dunno

 

It was on a WRX, going form a stock top mount to the Greddy FMIC kit. I datalogged it with a DeltaDash system. It was seriously like 60-70 rpms difference. If I ever get an FD like I want I will do a V-mount with it. I've looked at doing it in my 240 but it's kind of a lot of work. Plus the turbo I will be using and what I'm building the car for, I'm not worried about trying to scrounge those last 200 rpms of lag.

 

its really more to protect the intercooler than anything.

 

For drifting. They always drill their bumpers into sh*t, and the short piping response is good.

 

It was on a WRX, going form a stock top mount to the Greddy FMIC kit. I datalogged it with a DeltaDash system. It was seriously like 60-70 rpms difference. If I ever get an FD like I want I will do a V-mount with it. I've looked at doing it in my 240 but it's kind of a lot of work. Plus the turbo I will be using and what I'm building the car for, I'm not worried about trying to scrounge those last 200 rpms of lag.

I'm not too familiar with the WRX's. Is there a difference in piping length when going from the stock top mount to a front mount?

Another thing to remember in your case...even if there was significantly less piping, you went from the rather small top mount core to a larger front mount core in the process, which very well may kill of your gains.

Just more food for thought.

~matt

 

I'm not too familiar with the WRX's. Is there a difference in piping length when going from the stock top mount to a front mount?

Front mount WRX piping has so many mandrels it will make your wallet scream out in pain