what are the biggest pros and cons between front mount and side mount intercoolers? remember posts about this before but couldnt find them?

 

not gonna be after a huge amount of power/boost, but want a good upgrade. noticed a big split at japfest of those with front or side mount and wondered what made people choose their particular ones?

 

cheers

If you going bigger Tubs go for a FMIC ;) if not stay with the side mounts as you will get less lag fella :cool:

Aesthetically I much prefer the FMIC for obvious reasons, however I think it does restrict the flow of air quite a bit. Maybe not so bad if you had an uprated rad as well.

 

I guess uprated sides would be the way to go, but not really what I want TBH ...

If you going bigger Tubs go for a FMIC ;) if not stay with the side mounts as you will get less lag fella :cool:

 

Complete B0llocks mate :D no extra lag what so ever FACT ;)

Complete B0llocks mate :D no extra lag what so ever FACT ;)

 

now that is an ambiguous statement!!

 

any increase in intercooler volume will give increased lag.

i cant see how an FMIC will increase lag, the intercooler is a 'treatment' after the primary compression stage and the turbine is still being driven by the same exhaust gasses. you will more likely experience a higher drop in boost pressure across an FMIC compared to a SMIC, but not much

now that is an ambiguous statement!!

 

any increase in intercooler volume will give increased lag.

 

Urban Myth IMO

 

8 months of thorough testing says no increase in lag :tongue: if anything the boost comes in quicker.

why would it cause extra lag?

 

see where your coming from with airflow chris, i prefer the look of fmic myself but didnt want to go for something that would worsen performance!

 

edit cos i missed half a dozen posts!!!

 

- chris has your testing etc been done with uprated or standard tubs?

 

- paul, so if you would get an increase in lag due to the size, would a fmic that had the same core size as 2 smic's put together have the same effect?

Urban Myth IMO

 

8 months of thorough testing says no increase in lag :tongue: if anything the boost comes in quicker.

 

LOL!! you canee change the laws of physics cap'n!!

 

increase in volume = increase in air to compress before boost pressures occour.

LOL!! you canee change the laws of physics cap'n!!

 

increase in volume = increase in air to compress before boost pressures occour.

which is why i said the following!

 

i cant see how an FMIC will increase lag, the intercooler is a 'treatment' after the primary compression stage and the turbine is still being driven by the same exhaust gasses. you will more likely experience a higher drop in boost pressure across an FMIC compared to a SMIC, but not much

 

there is effectively an increase in pipeing volume/length however you want to measure it but the amount is too small to make noticeable difference is lag. according to your theory Paul its not a case of FMIC vs SMIC but Small vs Big

ok, imagine youve got a 3000 litre tank AFTER the turbo, how long do you think it will take to achive 1 bar?!?! ;)

 

oh, & WTF is the "primary compression stage"???? :D

ok, imagine youve got a 3000 litre tank AFTER the turbo, how long do you think it will take to achive 1 bar?!?! ;)

 

oh, & WTF is the "primary compression stage"???? :D

 

primary because compression also takes place in the intercoolers which makes that the seconadary compression stage :tongue: [thermodynamics]

LMAO, interesting thread and I need to believe someone so lets get our facts straight fellas! :D

a crucial point i just realised is what are we all defining as lag?

 

if we are talking about the time taken for the turbocharger to spool up (which is what im referring to) then no there is no increase in lag by changing the volume of the intercooler.

 

if we mean the time taken for full boost to be generated in the intake manifold (which is what i think Paul is talking about) then yes there is a minimal increase in lag.

Paul come see me at JAE for a test run ;) and i'll put the theory to bed (on my car anyway)

Don’t you just love it when people argue that know **** all about what they are arguing about PMSL :rofl: :rofl: :rofl:

 

I'll leave you with a few points to consider when choosing an intercooler

• Don't go overboard on the intercooler size. This can induce intercooler lag, which is created when the turbo has to fill the large space within the intercooler before it reaches the engine.

• Route the intercooler piping so it has the shortest distance between the turbo and the throttle body.

• Mount the intercooler where it can receive a fresh supply of air that passes directly over the fins.

• Make sure you have room for the intercooler. Measure everything before you order so that it will fit.

• Keep pressure drops across the core to a minimum. Anything under 1.5psi at full boost is considered good.

• It's better to have an intercooler with more height than width. This means that the flow through the intercooler is vertical not horizontal. (height is the charge side)

I'll leave you with a few points to consider when choosing an intercooler

• Don't go overboard on the intercooler size. This can induce intercooler lag, which is created when the turbo has to fill the large space within the intercooler before it reaches the engine.

• Route the intercooler piping so it has the shortest distance between the turbo and the throttle body.

• Mount the intercooler where it can receive a fresh supply of air that passes directly over the fins.

• Make sure you have room for the intercooler. Measure everything before you order so that it will fit.

• Keep pressure drops across the core to a minimum. Anything under 1.5psi at full boost is considered good.

• It's better to have an intercooler with more height than width. This means that the flow through the intercooler is vertical not horizontal. (height is the charge side)

 

 

Like this one you mean ?

 

 

 

GReddy FMIC ;) :bow:

Don’t you just love it when people argue that know **** all about what they are arguing about PMSL :rofl: :rofl: :rofl:

don't take a genius to work out who you mean, i dont care tho, im just saying what i think, i never claimed it was th gospel truth

 

its all good copying and pasting but wouldnt it be alot better if you explained to us plebs how you come to those conclusions and why someone is wrong

 

and i have to agree with chris, Greddy FMIC :bow:

don't take a genius to work out who you mean, i dont care tho, im just saying what i think, i never claimed it was th gospel truth

 

its all good copying and pasting but wouldnt it be alot better if you explained to us plebs how you come to those conclusions and why someone is wrong

 

and i have to agree with chris, Greddy FMIC :bow:

 

I don't care what you think either I copied and pasted it from a reliable source; you don't have to believe it if you don't want to everyone has that choice!

It’s like religion in a way some people think its right and some people think its utter *****cks

 

Pleb? Yas if I thought you were a pleb then I would tell you that you were make no mistake.

I don't care what you think either I copied and pasted it from a reliable source; you don't have to believe it if you don't want to everyone has that choice!

It’s like religion in a way some people think its right and some people think its utter *****cks

 

Pleb? Yas if I thought you were a pleb then I would tell you that you were make no mistake.

 

all im saying is on here everytime somone says something that someone else dsnt agree with they get put down or woteva, i was just giving my opinion and would gladly be corrected by somone who could explain to me how and why instead of just take th piss.

 

if you re read my posts you'll c me and paul were talking about two different things mainly because when we at Holset talk about lag we mean spool up time. so yes i do no what the **** im talking about, seeing as i match prototype turbochargers to engines that havnt even been released yet everyday.

 

the debate here should not be about SMIC vs FMIC which is what it seems but about volume.

Dont you just love a friendly debate :D keep em coming

Dont you just love a friendly debate :D keep em coming

 

LMAO :rofl: i give up!!

Dont you just love a friendly debate :D keep em coming

:D DEBATE!!! :dance:

oooookeydokey.

 

having read all the posts i have at least learnt a few points! so to help out a 'pleb' who knows not a lot more than an intercooler has something to do with the turbo's -

 

would i be right in saying that it is not so much an arguament between fm and sm, but a matter of the actual size (including lenght and height etc) of the intercooler/s, the length of the pipework to them and how well they have been fitted?

I did wonder where yourknowledge came from Yaz..... :)

 

It'd take a lot of balls to come on here stating FACT after FACT when you actually know sh1t.... I though I knew a bit but then after a lengthy chat with JD last night, I know fVck all!! LMAO

 

This is all very interesting stuff from all parties....

oooookeydokey.

 

having read all the posts i have at least learnt a few points! so to help out a 'pleb' who knows not a lot more than an intercooler has something to do with the turbo's -

 

would i be right in saying that it is not so much an arguament between fm and sm, but a matter of the actual size (including lenght and height etc) of the intercooler/s, the length of the pipework to them and how well they have been fitted?

 

someone who finally gets it! thank god some of us can read. ;)