Fmic or tmic with andy f 20g
09 June 2012, 11:57 PM
#4
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tmic can handle it, fmic gives lower temps and a little more safety, a proper mapper can sort out any percived lag from the fmic so you wont notice it.
If your end goal is what the 20g can provide, stick with the tmic
If your end goal is what the 20g can provide, stick with the tmic
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10 June 2012, 03:58 PM
#13
I was in a similar situation last year, spoke to my mapper and he advised going the front mount route, so i did.
Saying that, last week i did see a Blob STI run a 9 second quarter with the stock top mount....................A film called Born to Race..
Saying that, last week i did see a Blob STI run a 9 second quarter with the stock top mount....................A film called Born to Race..
10 June 2012, 07:43 PM
#16
The TMIC on your car is capable of handling that turbo, however, when I went from STi 8 top mount to Hybrid GT (not GT2) I picked up a total of 18 bhp after mapping and the air charge temperatures were much lower.
3 port boost solenoid valve with fittings £65.
There seems to be a bit of confusion here about headers.
Ported Subaru headers, DEI heat wrapped with a purpose designed, matched uppipe which is slip jointed, five new Subaru studs also DEI heat wrapped is £369 exchange. We fit here in Darlington for £75 (either the uppipe on its own or the uppipe and headers). Generally, subject to the turbo in use the ported headers and matched uppipe are the best option for lower powered cars. Between 380 and 420 bhp this is a grey area but by 420 bhp the GT2 Spec headers with my trick uppipe become the best option usually. This does not mean to say that ported headers and matched uppipe cannot operate well beyond 420 bhp it is just that the gains become apparent as the power increases which the GT2 and trick uppipe handle admirably.
GT2 header set £445.
DEI heat wrap £105.
Trick 3 bolt uppipe £149.
Just to complicate things further I now do a 2 bolt trick uppipe for those with GT Spec type 2 bolt tubular header sets. Both the 3 bolt and 2 bolt trick uppipes are specifically for use to match GT Spec type tubular headers.
3 port boost solenoid valve with fittings £65.
There seems to be a bit of confusion here about headers.
Ported Subaru headers, DEI heat wrapped with a purpose designed, matched uppipe which is slip jointed, five new Subaru studs also DEI heat wrapped is £369 exchange. We fit here in Darlington for £75 (either the uppipe on its own or the uppipe and headers). Generally, subject to the turbo in use the ported headers and matched uppipe are the best option for lower powered cars. Between 380 and 420 bhp this is a grey area but by 420 bhp the GT2 Spec headers with my trick uppipe become the best option usually. This does not mean to say that ported headers and matched uppipe cannot operate well beyond 420 bhp it is just that the gains become apparent as the power increases which the GT2 and trick uppipe handle admirably.
GT2 header set £445.
DEI heat wrap £105.
Trick 3 bolt uppipe £149.
Just to complicate things further I now do a 2 bolt trick uppipe for those with GT Spec type 2 bolt tubular header sets. Both the 3 bolt and 2 bolt trick uppipes are specifically for use to match GT Spec type tubular headers.
10 June 2012, 07:57 PM
#17
Your in exactly the same boat as me Peter, Im staying TMIC as I don't fancy all the hassle of fitting the FMIC at the moment, and it appears that there is little benefit at this level of mods unless your doing serious track action?
I've got a AF20G, and Harvey's ported wrapped headers and up pipe, I plan on running a splash of meth too to encourage earlier spool and power
What is the rest of your spec Peter?
Rob
I've got a AF20G, and Harvey's ported wrapped headers and up pipe, I plan on running a splash of meth too to encourage earlier spool and power
What is the rest of your spec Peter?
Rob
10 June 2012, 08:09 PM
#19
I actually went from a tmic to a fmic with a 20g turbo and I hated it, although the engine was safer due to the cooler charge temps (I was running a sort of unsafe apexi ecu) The car lost all its fun as the power delivery was much later and it lost its sharpness.
If your happy adding an extra say 600/800rpm of lag for say 15/20bhp more then go for a fmic.
If your happy adding an extra say 600/800rpm of lag for say 15/20bhp more then go for a fmic.
10 June 2012, 08:10 PM
#20
I actually went from a tmic to a fmic with a 20g turbo and I hated it, although the engine was safer due to the cooler charge temps (I was running a sort of unsafe apexi ecu) The car lost all its fun as the power delivery was much later and it lost its sharpness.
If your happy adding an extra say 600/800rpm of lag for say 15/20bhp more then go for a fmic.
If your happy adding an extra say 600/800rpm of lag for say 15/20bhp more then go for a fmic.
10 June 2012, 09:02 PM
#24
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have same car and very similare mods , will be keeping the TMIC as not worth the extra hassle of fitting fmic + you need a induction kit, when sti tmic is fine for this level of power and can keep standard airbox aswell,
3" decat and exhaust
panle filter
800cc injectors
billet 20g
tubulare headers
3" decat and exhaust
panle filter
800cc injectors
billet 20g
tubulare headers
11 June 2012, 08:36 AM
#25
An efficient front mount properly mapped does not create lag as many people who have done this mod back to back will testify. The STi 8 TMIC can handle 400 bhp but ACTs are that much higher and I have given a specific example above showing the additional power available from a change around that power bracket and any additional lag was not perceptible.
If people are suffering lag from a front mount it is either badly designed or bar and plate or it has not been mapped properly assuming the same turbo is in use before and after.
If people are suffering lag from a front mount it is either badly designed or bar and plate or it has not been mapped properly assuming the same turbo is in use before and after.
11 June 2012, 08:46 AM
#26
I would definately go front mount at this power level. As above, with a decent front mount mapped properly you won't suffer any noticible lag, I know I don't.
With regard to AVCR, I always use one. They are a fantastic piece of kit for the money and offer far more than just basic boost control, but I agree, not essential.
With regard to AVCR, I always use one. They are a fantastic piece of kit for the money and offer far more than just basic boost control, but I agree, not essential.
11 June 2012, 11:33 AM
#27
I, like the OP, am reluctant to go to a FMIC. Currently nudging 400bhp using an MD321H and standard STi TMIC I'm contemplating something like a SC420 billet and was wondering if there are any TMIC's out there that outperform the STi item? I've seen the Australian Process West version and it looks good and comes with a bespoke splitter. http://www.processwest.com.au/websit.../pw_p_tmic.htm
Anyone used one or something similar?
JohnD
Anyone used one or something similar?
JohnD
11 June 2012, 12:23 PM
#30
Scooby Regular
An efficient front mount properly mapped does not create lag as many people who have done this mod back to back will testify. The STi 8 TMIC can handle 400 bhp but ACTs are that much higher and I have given a specific example above showing the additional power available from a change around that power bracket and any additional lag was not perceptible.
If people are suffering lag from a front mount it is either badly designed or bar and plate or it has not been mapped properly assuming the same turbo is in use before and after.
If people are suffering lag from a front mount it is either badly designed or bar and plate or it has not been mapped properly assuming the same turbo is in use before and after.
this.
lag is a setup issue, not a front mount issue.