samcowrx

My my94 wagon currently has an old tmic on it, you know the one that sits on an angle as you look at it from the front? Anyway i now have an tmic from a MY98 wrx which is the standard one for that age car which is a better unit than the older one , its the one that is squarer and larger and must be more efficient. Can anyone tell me if it is an ordeal to do the swap or not?, or anything i should look out for? i have got the mount with it that fit my car but no piping, (apart from the y pipe underneath), is it hassle fitting a new dump valve with recirc? or should i just get a VTA? anyway any help or a simple guide would be greatly appreciated thankyou.

500

Dont forget to change the air flow panel under the bonet so that it directs the air better

I'd leave the D/V for what it's worth, but run a good quality Vta if you must.

may need the mounts, but cant forsee any major problems

DCR59

It's not a straight swap over to change the intercoolers, but this thread will help.
https://www.scoobynet.com/projects-4...er+fitting+wrx

I did mine a couple of months back, put an STi 4 onto an MY 94 WRX ra.
I would add, an STi intercooler would be better and more worthwhile to do than putting a WRX one on. You will need the Samco TCS22 hose kit.
Trim back the intercooler rather than the manifold, and rather than attck the rear engine mount with a big hammer, carefully trim it with a grinder.

samcowrx

Thanks for the advice all, i am not sure that we are speaking of the same intercooler that i want to put on my scoob, maybe even i dont have the correct one for the job? i have attatched two pics, please let me know if you know if this ic is of any use to me? and how i might fit this one, thankyou.

samcowrx

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samcowrx

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tru

hi i fitted the same to my 95 wrx not easy at all i had to cut the dump valve pipe off and reweld it as it hits the air control valve i had to cut the inlet pipe down and a few other mods with the brackets it was also catching on the bulkhead big hammer

samcowrx

i plan to do this swap at the weekend any help please?

KIPS

To be honest the pipe you got their is not going to help,the intercooler may be bigger but the pipe is restrictive so you may not gain much

KIP

Just noticed the dv outlet will need to be moved as this will foul on ???(cant think what its called) I brought a sti one but with all the agro ive bit the bullit and going to go front mount so its ready for other mods ive got planed im running the group buy which hopefully the front mounts will be available at the end of the month

samcowrx

hi kips, i know the dumpvalve outlet will foul on the idle valve, i will plate that up, i have seen a samco hose made for the ic inlet with dv pipe on it, (part no. SH004), this will help a lot, but if you think there is no point in doing this swap i dont want to go to the hassle of all the work. How about if i replace the restrictive inlet pipes with the allloy sti type piping, that must be better?
something like this one?

this looks less restrictive.
What do you think?, i am not going for big power, around 300 bhp, but to me the original slanty ic just looks like it is not very good.

KIPS

The pipe shown will help the flow I'm not saying its not worth the hassle it just seemed to much hassle for me to get dv welded up so going front mount agree the inter cooler is better than the slanty one if you do a search youl find loads of info on conversions
KIP

https://www.scoobynet.com/general-te...NT+INTERCOOLER

samcowrx

For the power i am looking for i would rather not fit a front mount, i have been offered an sti 2 slanty ic, would this give any advantage to the flow rate or inlet temps compared to my original slanty ic? I noticed it has only one inlet to the ic but my older slanty wrx type one has two inlets into the ic, can anyone explain this?

this is the sti 2 slanty type.

samcowrx

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samcowrx

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samcowrx

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samcowrx

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Group N

All 'slanty' intercoolers had only one inlet pipe AFAIK.. the later version cars after 97 / version 3 STi's had 'square on' intercoolers with two inlet pipe for better air distribution within the intercooler before it passed to the throttle body.

You'd be better off buying my newage intercooler with twin inlet pipes - alloy Y pipe and the dumpvalve already removed and the hole plated over!! then you can keep your existing inlet pipe (which should have the dump valve fitted to it) and jubilee clip it straight to your turbo - two new support brackets and jobs a gud 'un

Had planned to fit it to my rally car before I stupidly sold it


Cheers
Rob

samcowrx

cheers group n, but my original wrx 94 slanty ic has two inlets? and it is the original one

KIPS

Have you got any photos of the one you got with the two pipes as this may have been upgraded allready

kip

samcowrx

good point kips, i will get a picture on here asap.

samcowrx

I just wanted to revive my thread here, as i have not done this mod yet but i am going to do it shortly, i still have the 98 wrx ic, so this will be the on i fit, i think i just need to get the alloy y hose for the underneath instead of the plastic ones?