Rosssub

TT TMIC pipe upgrade revision 3

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On this subject I'm struggling to find the silicon pipes in the sizes mentioned. 1 3/4in is 44.5mm and 1 1/2 in is 38mm yeah? I can't find anything in these sort of sizes :(

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 B4 I was 250T said:
On this subject I'm struggling to find the silicon pipes in the sizes mentioned. 1 3/4in is 44.5mm and 1 1/2 in is 38mm yeah? I can't find anything in these sort of sizes :(

Bought mine (revD though) from Alltech in Wairau, Auckland, was very adequately priced (about 1.5 years ago).

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 sobanoodle said:
Bought mine (revD though) from Alltech in Wairau, Auckland, was very adequately priced (about 1.5 years ago).

+1

I also got mine from Alltech last month. Just go to their shop and ask for the sizes you would like and they should be able to help.

Or http://www.trademe.co.nz/motors/car-parts-accessories/performance/turbos/auction-728801071.htm

^ That is a black one but they do have blue.

Their website is www.turbo.co.nz

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Just buy the generic silicone intake bend, no need to spend a couple hundred on a zerosports one

The intercooler hoses... just trademe? You can clamp down or stretch silicone a bit so no need to get overexcied about if its exactly the right mm

Worth going to a V7 cooler at the same time if you're going to the effort of replacing the hoses alone

Then you can fit a fan under it woo

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Doesnt cover V7 sti tho. I posted all this in a thread buried somewhere on here.

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 A_J_T said:
I could be wrong but i believe the standard Legacy Twin-Turbo TMIC to be just as good as the V7 if not better.

Take a look at this write up and see what you think, its pretty interesting.

Part 1 http://www.autospeed.com/cms/article.html?&A=1618

Part 2 http://www.autospeed.com/cms/article.html?&A=1619

In those tests they don't use the JDM version 7 STI tmic, it's the smaller WRX TMIC(usdm?). So the JDM V7 STI would compare closer to their aftermarket version 7 MRT.

Capable air flow is one thing, but cooling efficiency is just, if not more important. If you look at the 'thermal mass' and 'heat exchanger core volume' differences, the bigger TMIC definitely stands out.

The TT might flow slightly more air, but it wont be near as cold/dense. :)

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 swanson-07 said:
Ive got a Rev C legacy, what sizes and angles to do need exactly to buy?

Rev A/B/C have primary VF25 and secondary VF27 turbo's i believe so follow Rosssub's guide and you'll be right.

1 x 1.3/4 To 1.1/2 45° reducer elbow

1 x 1.3/4 To 1.1/2 90° reducer elbow

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Nope, its already a real solid bit of rubber hose

It just looks tidier and makes it easier to pull the intercooler off changing to silicone

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Tried this yesterday, noticed quicker response to 10psi but felt slower to 15psi after the secondary kicks in, hitting 15psi around 5k rpm, is this normal?

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I've done this to my single turbo ej20g, with silicon and rad hose and gasket maker and a whole lot of hose clamps. Bigger diameter than stock pipe. Butt dyno too inaccurate imo but I don't have a gaping hole in mine anymore and holds boost nicely

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