legacycentral bbs

WHile I am just a confused elderly person, I do now know that you can use an NA radiator with the turbo waterpump. Whew!

Im not using a NA radiater, My Car is a 94 T leg with an EJ22T bock with N/A heads the fact that they are N/A make no diffrence in the fact that the car is turboed, the block take the boost, These HEad are higher flowing than are Stock ones, EJ22T heads were none to be one of the worst heads built by subaru.


(Dont quote me on that please)

So im going to go do this, pics up soon

Is this what you were thinking?

I know id have to insulate the hose due to heat soakage but will that work i can easily put it back to how it was, and yes i know i need to shorten the hose.

Its a Brass T Just a hint smaller than the Turbo coolant inlet.

So, Will this work?


I need some input Quickly, hehe, thanks

SO>?

Help me, is this right?

No, that's a RETURN line from the oil cooler; it goes INTO the water pump - the only source you have for pressurized (discharge) coolant flow is from the block.

you'll need to tap the heads in the same location as where the standard coolant feed exists on EJ22T heads; there are instructions on LCO if you search on how to do this.

The guy i bought this off of, had a turbo on this, I dont know where he was getting coolant though....

Wouldnt of that been an epic fail if i used that for coolant for the TURBO, LOL!!

If you want to supply the turbo with coolant the easiest way to do it on a turbo'd N/A set-up is to tap into the coolant supply for the t-body (coolant flows through the t-body into the block).

Route the coolant out from the t-body to the turbo via a piece of coolant hose, then route the turbo coolant out to where the t-body hose was originally plumbed back into the motor via another piece of coolant hose.
The coolant will now flow through the t-body, into/through the turbo, then back to the block.

I did this on my OBS-T 4 years ago & it is still running strong - no problems after 50k miles of use & counting (knock on wood).

BXSS wrote:If you want to supply the turbo with coolant the easiest way to do it on a turbo'd N/A set-up is to tap into the coolant supply for the t-body (coolant flows through the t-body into the block).

Route the coolant out from the t-body to the turbo via a piece of coolant hose, then route the turbo coolant out to where the t-body hose was originally plumbed back into the motor via another piece of coolant hose.
The coolant will now flow through the t-body, into/through the turbo, then back to the block.

I did this on my OBS-T 4 years ago & it is still running strong - no problems after 50k miles of use & counting (knock on wood).

I don't see how that provides sufficient flow. IIRC the T-body coolant connections are 1/4" internal diameter. the stock coolant connections are something like 5/8".

Again, the only (and best) option here is to drill the heads where the EJ22T heads normally have their connections. AFAIK the coolant and oil gallies are still in the right place, it's just that the DOHC heads don't have the ports drilled out.

"SOHC" heads

Thanks for the info im trying to get a hold of the guy who sold me the moter

scuzzy wrote:

BXSS wrote:If you want to supply the turbo with coolant the easiest way to do it on a turbo'd N/A set-up is to tap into the coolant supply for the t-body (coolant flows through the t-body into the block).

Route the coolant out from the t-body to the turbo via a piece of coolant hose, then route the turbo coolant out to where the t-body hose was originally plumbed back into the motor via another piece of coolant hose.
The coolant will now flow through the t-body, into/through the turbo, then back to the block.

I did this on my OBS-T 4 years ago & it is still running strong - no problems after 50k miles of use & counting (knock on wood).

I don't see how that provides sufficient flow. IIRC the T-body coolant connections are 1/4" internal diameter. the stock coolant connections are something like 5/8".

Again, the only (and best) option here is to drill the heads where the EJ22T heads normally have their connections. AFAIK the coolant and oil gallies are still in the right place, it's just that the DOHC heads don't have the ports drilled out.

Honestly if it is not a b-bearing turbo the water line is not really needed - ? if the previous owner of the motor even had one hooked up.
Look @ old school t3/t4's & you will not see coolant lines on them.

The DOHC cars do have the gallies in place, but if the engine in the pic is what is going to be used, it is PII-SOHC.

I have a '99 OBS that was turbo'd many moons ago as stated above & I have had NO problems with the coolant plumbing as I described above.
I used a TD05 on a Phase II 2.2e which is the same style t-body/ intake manifold / v-covers as the motor shown above & the t-body coolant lines were the SAME Size as the coolant fittings on the turbo.

I've actually turbo'd a few N/A cars (from a Jeep Wrangler to DOHC-Vtec Integras) & have always got coolant to the turbo this way.

The previoous owner did have one hooked up, to my knowledge, thanks for the input, im waiting for his reply on nastycock

Sorry I haven't replied. I've been traveling for work. That line you had hooked up would sort of work. It's being supplied from the block. You just have it hooked up after the oil cooler, which isn't ideal.

If it were me, I'd find a spare freeze plug (coolant plug, weld a 5/8" barbed fitting on it, tee a line to the turbo, and the other line to the oil cooler. Problem is there's not much room down there to do all this.

I agree with scuzzy the best way to do this is to tap the coolant jacket. However that's a little hard with the engine in the car.

Legacy777 wrote:
I agree with scuzzy the best way to do this is to tap the coolant jacket. However that's a little hard with the engine in the car.

Exactly........

I did just get back too, from VACATION

If i cant get ahold of this guy i will move my T up the line to BEFORE the oil cooler, instead of supplying the Turbo with hot coolant, Thanks Guys

Youve all been a HUGE help