External view of the sender which is inserted through the silicon pipe into an aluminium joiner.



The sender viewed from inside the pipe. It is screwed into the aluminium joiner and araldyte is then applied.

Ian if you still have any questions on the installation I suggest you e-mail me.

 

A bit of methanol to drop the combustion temperatures, 196 deg ACT and away you go. No need for an FMIC for you.

 

harvey
you say that the charge gets warmed up even after being chilled by IC before it gets to combustion chamber by the intake plenum. It is aluminum cast manifold - it gets its temperature conducted from the engine were a massive amount of heat is generated. So, why I.cooling the charge then ?
Anyways the charge temp can't get lower than some Greatest Lower Bound temp which is characterized by the intake manifold.

Aidar

 

So, DRM supply the scoops, where do you get the undertrays from?
On my 03WRX, to swap to an STI 8 scoop i assume requires the same undertray?
Also, is the STI 8 TMIC a straight swap for the WRX one, or do things have to be modded?
Next, lol, what 'real' world gains would be had from fitting the above when compared to the WRX scoop, TMIC, etc.

Car is:- VF34, 550 Injectors, associated mods.

 

Various places sell undertrays

JW Racing Under Bonnet

Zero/Sports Cool Action Intercooler Splitter (Subaru Impreza WRX) [ZS-0306010]

The OE Sti tray is not bad, or you can DIY modify your WRX one to fit.

The Sti intercooler is a direct bolt on to your WRX, the WRX mounting bracket has 2 different holes in it, one is for an Sti intercooler

The new age WRX intercooler is good for around 325bhp on an appropriately sized turbo before it struggles, the 45% larger Sti unit will bring significant gains with a VF34 etc

Typically I'd expect to see 330-345 bhp on that set up but if you like I can tell you a rolling road that will give you nearer 375

Andy

 

More info on the efficiency of the Sti TMIC here....

https://www.scoobynet.com/general-te...ncy-graph.html

Andy

 

Am tempted for the sti tmic! lol. Might give me what i expected to get when i had all my work done in the first place. lol.
I just cannae help me self. I'm a doomed i tell thee! Doomed!

 

That last part sounds just like that guy who does the mapping? Strange!?

 

Whats involved in modifying the WRX undertray to fit an STI IC then? What needs doing i mean? Mind you, i wont bother anyway knowing me, i will just buy one! lol.

 

Andy, looking at the two splitters you posted above, they look like WRX ones to me??? Surely they would not cover the STI TMIC properly as its wider and deeper innit?
I need an STI undertray don't I? Sorry if i have lost the plot

 

Best get a STi undertray as you have said the WRX would not cover the deeper & wider STi intercooler, otherwise you would not get the full benefit of the STi intercooler

 

Just gotta find me an sti ic now! lol.
Scoop and stuff i will get from drm i think.

 

Just a thought but would it help if the intercooler was sprayed black, doesn't black disperse heat better or am i just talking bullsh*t

 

Another question about fitting the sti8 tmic to an 03 wrx. Dont i need another hose or set of hoses to fit this?
Atm, i have some samco hoses that connect up my wrx tmic, but surely these dont fit the sti tmic?

 

The STi intercooler should come with all the pipework including the red prodrive hose that goes onto the turbo

WRX


STi (blue bottom hose is in place of the red prodrive hose)

 

Ta for that
Is the sti ic likely to lower the spool up point of the vf34 when the car is remapped? Only as it is now i feel the spool up is 'late' up the revs and so full boost arrives later than i would like. (may be total b*ll*cks like)

 

Would not thought it would affect the spool up
As you seem to have a similar spec to mine VF34 etc i get it starting to spool from about 2500rpm with full boost just over 3000rpm, what about yours

 

hi Andy, just to know if you can tell me what max power can be achieved safelly in an sti v3 (vf23, 440cc injectors, std ic, std fuel pump, cat apexi gt spec s/s 3" 1/2 exhaust), as it seems that you're very aware about tuning sti engines
thanks and cheers!

 

As an added note regarding measuring inlet temps,apart from the previoulsy mentioned set up as used by harvey etc there is a nice cost effective number to be had from maplins..... i use one on my modded wrx,costs less than £20 delivered,runs off a AA battery that lasts a year before change needed,no back light unfortunatly,but as night times tend to be at cooler temps than the days im not that bothered..... the temp probe ive mounted into the intercooler pipe to throttle body,simply drilled a small hole,pushed the probe in and secured with a little silicone sealent,let it dry and its been there over a year now doing a fine job.... it is alarming at first seeing the temps rise esp at stationary times due to heatsoak,but generally they are well in check on a my00 with a tdo5 and a 2004 wrx ic,plus lots of other bits and bobs......

 

Would you have the part numbers

 

Well now ive paid to get the search working again i found a previous posting i made about it........ cycles every second after a little soldering,works great for the money i think

Maplin > Temperature Module

 

Thank you

 

Certainly value for money if you are prepared to do a little work and accept minor limitations of battery and no back light. I am sure it will be an accurate piece of kit.

 

Well agreed Harvey its on the cheap side,with slight limitations regarding back light and night time use,battery life i can live with at over a year on the original one, it lasts a long time.... without buying an all singing and dancing one and mounting that along side i cannot verify its accuracy.... its a measuring instrument after all that i hope would have been calibrated to roughly the correct scale before being released for sale.... as an indicator tool it does its job......

 

I wouldn't do anything to it on a std fuel pump I've seen std decatted Sti3/4 running lean due to lack of fuel and boost creep, they were making good power (but not for long)
With an uprated fuel pump you should be able to safely achieve IRO 320-330bhp, any further and you are running the turbo out of its efficiency zone. This will be obvious during mapping from airflow and wastegate duty data, no need to fit an air temp gauge if it is mapped correctly with an appropriate safety margin for your particular set up.
Some seem to love an interior full of gadgets and gauges, I personally hate it, it detracts from my driving pleasure ! Maybe I just see too much data in my day job
Theres not one extra gauge in my Spec C and thats running fairly highly tuned.
If you want to monitor anything I would have EGT and AFR and boost at the top of the priority list.

Andy

 

Now theres the question you see. You have the sti ic and stuff.
I would think, although obviously driving it is hard to do both, but trying to watch my boost gauge/revs, etc, i would say mine is not on full boost until 3500 or even more. but to be fair, i would need someone else to watch the gauges whilst i drive to know for sure. LOL.
My main complaint with my car is the complete lack of anything before 3k revs. I think my headers have robbed me of any torque at all down there.
But i always was a negative f00ka.

 

If you have aftermarket tubular headers, ported O/E and matched up-pipe will improve your spool noticably.

 

What headers do you have, i've got a set of Harveys ported & wrapped and they lowered the spool up by about 500rpm

 

Hi i bought one of these a couple of weeks back but cannot get it to work.
where did you solder the wires to
thanks chris

 

thanks for the advice Andy! i've an other question, sorry but here in belgium there's nothing to help us with sti classic tuning, i've been told that sti v3 ECU can be mapped or chipped, how can you more power/torque? with a friend of mine who's engineer we checked the ECU (6s) and it's totally stock, no chip, but the car does 1.35bar full boost and stays to redline 1.15bar, no fuel cut or problem at the moment (allways used v-power 98ron, now 99ron in belgium).
how much would you ask for a good engine tuning package for fast road?
where are you located?
thanks
cheers
Daniel