Link/VF28 - best intercooler for the job?
Thread Starter
Joined: Sep 1999
Posts: 3,384
Likes: 27
From: Aberdeenshire
Help!
I am trying to find out whether a STI IV I/C with silicon hoses is good enough for the above mods (as the VF28 will run cooler charge temps at 1.2 bar compared to the old TD04).
Which will give me the best bang for my buck!
STI IV I/C
APS TMIC
MRT TMIC
HKS FMIC
Also, who has or knows of how good the following are:
AVO TMIC/FMIC
BPM TMIC/FMIC
Cheers!
Russell

I am trying to find out whether a STI IV I/C with silicon hoses is good enough for the above mods (as the VF28 will run cooler charge temps at 1.2 bar compared to the old TD04).
Which will give me the best bang for my buck!
STI IV I/C
APS TMIC
MRT TMIC
HKS FMIC
Also, who has or knows of how good the following are:
AVO TMIC/FMIC
BPM TMIC/FMIC
Cheers!
Russell


Wuz
I have tried three and in order of greatness
HKS FMIC - Really Great
MRT TMIC - Really Great for fast road
STI V TMIC - Good
Trout
PS The second two are sitting in my garage and are for sale - STI V for offers over £30, MRT - £450 - and I have already had offers which I need to sort out!
Trout
I have tried three and in order of greatness
HKS FMIC - Really Great
MRT TMIC - Really Great for fast road
STI V TMIC - Good
Trout

PS The second two are sitting in my garage and are for sale - STI V for offers over £30, MRT - £450 - and I have already had offers which I need to sort out!
Trout
Thread Starter
Joined: Sep 1999
Posts: 3,384
Likes: 27
From: Aberdeenshire
Trout,
I'd love to but the STI V I/C. (If Wrexy hasn't got it already you post-pincher you!



)
Mail me if you still want to sell it!
PS what is the current offer you have for the MRT TMIC? I'd like to try and beat it!
Russell

I'd love to but the STI V I/C. (If Wrexy hasn't got it already you post-pincher you!




)Mail me if you still want to sell it!
PS what is the current offer you have for the MRT TMIC? I'd like to try and beat it!

Russell


If going for a front mount, the Pace is hard to beat for value. Check their website www.paceproducts.co.uk. You get a FMIC + Alloy Rad, all for the price of most Intercoolers alone. Around the £1000 mark, unless you can scrounge some discount of them. You also dont have to dismantle half of the front of the car to fit it..ie, no bumper removal. Recently doing a bit of testing in a friends car, on a warm sunny day, and running 1.7bar, we seen a max of 40 deg. Usually on a cooler night temps would be around the mid 20's, although that was with about1.5 bar max.
Subaru Tuning Specialist
Joined: Jun 2002
Posts: 6,654
Likes: 1
From: 7.74 @179 mph 1/4 mile - road legal
I don't have first hand experience with the Pace but I have seen comments on this BBS criticising the quality and efficiency of the Pace cores, when compared to a bar/plate type intercooler.
With everyone running different boost, turbo, exhaust, injectors, temp gauges etc it is notoriously difficult to compare one to another.....which is a pity really, cos we'd all like the best one
With everyone running different boost, turbo, exhaust, injectors, temp gauges etc it is notoriously difficult to compare one to another.....which is a pity really, cos we'd all like the best one
Email is Rannoch1@hotmail.com
Best offer on MRT is £450 (includes modified bonnet undertray complete with Sti Water Spray jets)
Sti V TMIC comes with dump valve and so all you will need is extra bit of piping and it will drop straight into MY98. It is a bit road worn - but works fine.
In terms of temps - 40deg on the road with a FMIC seems quite high - experiences elsewhere suggest the MRT will easily run cooler than that - and that the HKS FMIC will limit temp rise to 2 deg above ambient - although this will clearly depend on how stressed your turbo is.
Trout
Best offer on MRT is £450 (includes modified bonnet undertray complete with Sti Water Spray jets)
Sti V TMIC comes with dump valve and so all you will need is extra bit of piping and it will drop straight into MY98. It is a bit road worn - but works fine.
In terms of temps - 40deg on the road with a FMIC seems quite high - experiences elsewhere suggest the MRT will easily run cooler than that - and that the HKS FMIC will limit temp rise to 2 deg above ambient - although this will clearly depend on how stressed your turbo is.
Trout
Trending Topics
STi ver 6 Wagon with various mods including APS Cold Air and Link
Cruise at 4k rpm throttle body temp amb +6/10c WOT temp =40c+ Lots of WOT= 50c+ On Rolling Road amb. 7c final temp 55c
Same conditions with APS FMIC amb +1/3c WOT so far max =26c.
Rollig Road end temp = 26c (amb 14c)
A TMIC cannot compete with a good FMIC but the FMIC is a lot more money
I have experience of the Pace also but not the HKS. The Pace is easier to fit and includes another water radiator but on the installation I am referring to it came nowhere near the APS efficiency.
I am biased but the info is exactly as reported from my experience.
Anybody want to buy an APS FMIC+ Cold Air Kit look in for sale section.
If fitting a FMIC it is better to take a little longer over the installation to get it right and enjoy the maximum benefits because it represents a signifigant financial outlay but the improvements I experienced were far beyond what I had thought likely.
Cruise at 4k rpm throttle body temp amb +6/10c WOT temp =40c+ Lots of WOT= 50c+ On Rolling Road amb. 7c final temp 55c
Same conditions with APS FMIC amb +1/3c WOT so far max =26c.
Rollig Road end temp = 26c (amb 14c)
A TMIC cannot compete with a good FMIC but the FMIC is a lot more money
I have experience of the Pace also but not the HKS. The Pace is easier to fit and includes another water radiator but on the installation I am referring to it came nowhere near the APS efficiency.
I am biased but the info is exactly as reported from my experience.
Anybody want to buy an APS FMIC+ Cold Air Kit look in for sale section.
If fitting a FMIC it is better to take a little longer over the installation to get it right and enjoy the maximum benefits because it represents a signifigant financial outlay but the improvements I experienced were far beyond what I had thought likely.
Haven't seen much info on the HKS, but I like the results I've heard of with the APS i/c & cold-air induction kit. Harvey had one kit for sale, not sure if it's still available?
Richard
Richard

HKS....yeah...it must do something good...no more noise issues on track (apart from me hitting the rev limiter a few times)...I seriously think the APS would have been a better choice - mainly due to the design of the intercooler....the soft fins of the HKS really needs to be protected with a mesh, I believe the APS does not.
Besides this little nigglet there can't be much in it between the different FMIC's.
/J - I love the HKS still though.
May not be of relevance, but when Trout was selling his MRT TMIC, I contacted MRT asking how an STi 5 TMIC compares to your MRT TMIC with regards to the following:
Efficiencies?
"The Efficiencies are comparable, although ours is SLIGHTLY better due to the larger surface area".
Pressure Drop?
"The pressure drop across the MRT intercooler is minimal when compared to the OEM or STi versions".
Should I purchase one of your MRT TMIC if I already run an STi 5 TMIC?
"To be honest, if you are looking at upgrading your intercooler again, I would suggest fitting the front mounted intercooler. This is the next logical step up from the STi TMIC as the cost of the new TMIC will more than likely not justify the gains received".
Jacko.
Efficiencies?
"The Efficiencies are comparable, although ours is SLIGHTLY better due to the larger surface area".
Pressure Drop?
"The pressure drop across the MRT intercooler is minimal when compared to the OEM or STi versions".
Should I purchase one of your MRT TMIC if I already run an STi 5 TMIC?
"To be honest, if you are looking at upgrading your intercooler again, I would suggest fitting the front mounted intercooler. This is the next logical step up from the STi TMIC as the cost of the new TMIC will more than likely not justify the gains received".
Jacko.
Well - Normski - the difference between the STi V TMIC and the MRT TMIC was much more significant than between the MRT TMIC and the HKS FMIC......so to say there is not much difference would seem to be misleading.
The shift between OEM and MRT required between 1&2% increase in IDC - i.e. more fuel. The shift between MRT and HKS FMIC required less than 0.5% increase in IDC - although I expect more consistent perfoformance.
Trout
The shift between OEM and MRT required between 1&2% increase in IDC - i.e. more fuel. The shift between MRT and HKS FMIC required less than 0.5% increase in IDC - although I expect more consistent perfoformance.
Trout
David, you now have an uprated fuel pump which is much more consistant and probably contributes the the lack of differential.
I would go FMIC every time.
The APS, HKS and Hyperflow fmic are much of a muchness and I would say the best, I can confirm though that the APS is very resistant to stones indeed. Pain chips off but fins stay intact.
I would go FMIC every time.
The APS, HKS and Hyperflow fmic are much of a muchness and I would say the best, I can confirm though that the APS is very resistant to stones indeed. Pain chips off but fins stay intact.
I have only heard comments about the need for a mesh guard on the HKS but have no first hand experience but on my APS which has been on for about 6wks there appears to be no reason to add a protective grill.
As Richard says I have a FMIC + COLD Air for sale.
As Richard says I have a FMIC + COLD Air for sale.
Well - Trout - didn't mean to offend, just stating the facts that I obtained from MRT as I was considering buying yours over and above my STi5 TMIC. I mailed you for data but your account was down, so seeing as these things get sold pretty quickly, I outsourced the data I was after from MRT 
The responses above were direct from the horses mouth at MRT and I have an email to prove it
STi5/6/P1 TMIC obviously will provide a benefit over Standard and an MRT TMIC will give a 'SLIGHT' improvement over STi TMIC.
You cannot beat a FMIC. Bang for buck as per the original topic starters request, would indicate that a 2nd hand STi5 or MRT TMIC would be a good way to go until such time FMIC begin to flood the 2nd hand market.
All my own opinion of course.
- Jacko - now 'DJNormski' as webmaster won't reinstate password!

The responses above were direct from the horses mouth at MRT and I have an email to prove it

STi5/6/P1 TMIC obviously will provide a benefit over Standard and an MRT TMIC will give a 'SLIGHT' improvement over STi TMIC.
You cannot beat a FMIC. Bang for buck as per the original topic starters request, would indicate that a 2nd hand STi5 or MRT TMIC would be a good way to go until such time FMIC begin to flood the 2nd hand market.
All my own opinion of course.
- Jacko - now 'DJNormski' as webmaster won't reinstate password!
Thread Starter
Joined: Sep 1999
Posts: 3,384
Likes: 27
From: Aberdeenshire
I agree that a TMIC is always going to be the best way forward but some of us aren't made of money!
A quick questions to all - Is there much of a difference (efficiency wise!) between a STI IV and STI V/P1 intercooler
It seems I can get a STI IV for a good price and am very keen!!!!!!!!!!!!!!(asuming it will be adequate for the task
VF28/Link? MY97 with phase 2 piston rebuilt engine!!!!!!!!!!!!
A quick questions to all - Is there much of a difference (efficiency wise!) between a STI IV and STI V/P1 intercooler
It seems I can get a STI IV for a good price and am very keen!!!!!!!!!!!!!!(asuming it will be adequate for the task
VF28/Link? MY97 with phase 2 piston rebuilt engine!!!!!!!!!!!!
WUZ, wouldn't bother with an STi4 TMIC, not much benefit (if at all!) compared with your black 97MY TMIC.
The 99MY and especially STi5 items are fundamentally better equipped for the job with (I believe) lower pressure losses and far improved efficiencies.
I went down the exact same route as you are going, UK 97MY, LINK, VF23, Scoobysport 2.5" DP, HKS hiper mid+BB etc, etc.
If you are going to stick to TMIC, go for (and wait 4 a 2nd hand 1 if you have to) an STi5/6/P1 or even better MRT
Jacko.
[Edited by DJNormski - 6/14/2002 3:43:07 PM]
The 99MY and especially STi5 items are fundamentally better equipped for the job with (I believe) lower pressure losses and far improved efficiencies.
I went down the exact same route as you are going, UK 97MY, LINK, VF23, Scoobysport 2.5" DP, HKS hiper mid+BB etc, etc.
If you are going to stick to TMIC, go for (and wait 4 a 2nd hand 1 if you have to) an STi5/6/P1 or even better MRT

Jacko.
[Edited by DJNormski - 6/14/2002 3:43:07 PM]
Yes the APS can take a battering - I know......
Having seen how the HKS front seems to age I'm glad I went for the APS - The HKS needs a protective cover (for sure) so airflow cant be as optimal as the APS and where do you put the dump valve? - the HKS front mounts I've seen have had the dump valve crudely welded onto the piping - and it looks awful....
Trout
Your selling the sti5 top mount far too cheaply - its worth circa £200
Having seen how the HKS front seems to age I'm glad I went for the APS - The HKS needs a protective cover (for sure) so airflow cant be as optimal as the APS and where do you put the dump valve? - the HKS front mounts I've seen have had the dump valve crudely welded onto the piping - and it looks awful....
Trout
Your selling the sti5 top mount far too cheaply - its worth circa £200
HKS FMIC went on 2 weeks ago.
Fit and finish Excellent - except bumper hacking of course!!
BOV goes on via a circliped funnel.
Went from BPM TMIC and performance is better, lag increase minimal (pre-remap).
Fins are soft. Fitting a mesh this weekend!
Fit and finish Excellent - except bumper hacking of course!!
BOV goes on via a circliped funnel.
Went from BPM TMIC and performance is better, lag increase minimal (pre-remap).
Fins are soft. Fitting a mesh this weekend!
Thread Starter
Joined: Sep 1999
Posts: 3,384
Likes: 27
From: Aberdeenshire
OK STI IV TMIC idea is scrapped.
I admit (once again) that the FMIC route is the best to go for BUT INsurance is set to go up by 20% just for the FMIC but only 3% with a aftermarket TMIC
Bttt to keep the info coming in!
Russell




I admit (once again) that the FMIC route is the best to go for BUT INsurance is set to go up by 20% just for the FMIC but only 3% with a aftermarket TMIC
Bttt to keep the info coming in!
Russell





Jacko,
and I was just responding with my experiences on the car.......
......I did get your email - but I don't have the technical data you asked for - what I have is empiracal data based on using it for eight months and tuning the car to suit.
MRT are probably right - to buy a new MRT TMIC over an STi V TMIC would be a waste of money - of course it would it is about the same price as a good FMIC kit!
McCulloch,
it is a circlipped pipe
WUZ,
have heard from other APS owners that yes - good - but pipes leak badly and it is high maintenance from that respect.
HKS front-mount is good - yes the fins are to soft really for a front mount - although only as soft as the Sti V top mount
Trout
[Edited by Trout - 6/15/2002 8:38:08 AM]
and I was just responding with my experiences on the car.......
......I did get your email - but I don't have the technical data you asked for - what I have is empiracal data based on using it for eight months and tuning the car to suit.
MRT are probably right - to buy a new MRT TMIC over an STi V TMIC would be a waste of money - of course it would it is about the same price as a good FMIC kit!
McCulloch,
it is a circlipped pipe
WUZ,
have heard from other APS owners that yes - good - but pipes leak badly and it is high maintenance from that respect.
HKS front-mount is good - yes the fins are to soft really for a front mount - although only as soft as the Sti V top mount
Trout

[Edited by Trout - 6/15/2002 8:38:08 AM]






