T25 mod

[Dsmj89]

So my VR-Speed FMIC is coming in about 3-4 weeks and i am planning ahead on how i will be working my install with my t2small.
Below i created an idea of what i was thinking would be a way to make my t25 work with the new fmic.

1 - represents a cut piece of a stock rubber i/c hose i will re-use
2 - represents a 2" piece of pipe used to connect the custom #1 hose coupling to the pipe
3 - repesents the 2"-2.5" reducer coupler included with the fmic kit
4 - represents the 2.5" i/c piping
Red line - represents where i will be planning to cut my t25 elbow

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What do you guys think of this idea ? Any opinions and/or suggestions would be greatly appreciated. Thanks for any help.

 

[viperlp01]

just flip that end around. It has been done and that design(even though a poor one ) will most likely work

 

[thewombis]

best way, would be to get a bigger turbo.

Should work, I see no reason changing the output direction would have a negative effect on anything.
Is there going to be enough room to clamp a hose onto after you lop that bend off? If not, I suppose you could take the small straight section and cut it off the 90 (where your #1 arrow is going through) and have it welded on straight down. then you could probably get id of 1 potential leak spot. Just have the 90 rubber coupler from the turbo to the IC piping.

LESS PIECES THE BETTER!

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[Dsmj89]

I plan on a bigger turbo soon don't worry i'm working on that hehe.
Well thing is i don't think the 90 degree coupler will reach the turbo, that's why i put it like that, but the idea of welding that end onto the turbo looks like a nice idea.

 

[rEclipserGST]

Since your going to Upgrade the turbo later anyways, why not just use a hose to connect it just the way it is. Yea the air flow might be restricted. BUT does it really matter since that FMIC is too big for a t25. It might hurt AND help at the same time? Thats just me thinking less work since your going to Up the turbo anyway.

 

[Dsmj89]

That's true. I'm a very undecisive guy.
I was thinking just using the included reducer 2"-2.5" reducer and putting that side on the turbo for now and ordering 1 - 2.5" coupler with 2 t-bolt clamps and having a muffler shop weld me an L-pipe to go under the frame and call it a day.

 

[Boosted98gsx]

running a t-25 with a front mount is a stupid idea. You will not gain anything besides lag vs the stock sidemount as long as you are within the t-25's efficiency island of 15-16 psi.

The thing is simply not designed to flow through that much piping.

Buy a 16g.

 

[Mr Peepers]

I fail to see how a fmic will hurt a t25. If there is less pressure drop and more efficiency it can only benefit; perhaps only slightly. It's not like it loses airflow by going through a larger core, it only increases density. The core may be designed to be optimal at higher airflow levels but a t25 isn't that far off to make it useless.

I just think saying you won't gain anything and that it's a stupid idea is a little unfounded.

I guess before and after tests would have to be done.

 

[Boosted98gsx]

I just don't see a t25 having enough air mass velocity to move the air mass through the piping to, through, and from a large front mounted intercooler. By all means, upgrade the stock sidemount, but adding a frontmount is going to delay your torque curve. If you're going to delay your usable torque, why don't you just go ahead and add a larger turbo? At least then you'd have the higher end to make up for it, which we all KNOW the t-25 doesn't have.

 

[Mr Peepers]

Air mass velocity shouldn't make a difference if there is less pressure drop, which a larger core will likely have. Less pressure drop=less work required by the compressor and don't forget turbine for the same PR.

For a given airflow, lets even say 20lb/min which is about right for a moderately run t25, the charge piping and intercooler isn't much displacement compared to the air being ingested by the engine. I don't believe the torque curve will be set back that much and if it would even be noticeable.

Again, all just speculation.

 

[spectr019]

I wrote up a how-to article last year on this...I'm running a T28 with an intercooler that connects the same way. Basically: Whenever you cut a pre-made cast iron piece like our turbo elbow, you're always running the risk of the housing cracking. You can make a very sharp 180 elbow that will fit to your existing turbo compressor elbow and connect it to your intercooler which will fit above the cross memeber. You have to cut off the one support brace on the fan, and it will fit through. Get under the car and take a peak, you'll see what I'm talking about!! That way you won't have to re-use the rubber hose on the compressor housing, which would see a BUNCH of punishment and also stretch with the heat (even though it's the 'cold' side, that thing gets HOT). Either way, good luck!!

Ben

 

[Boosted98gsx]

Uh, ben, the compressor housing is made from aluminum.

 

[spectr019]

Also!!! Somebody mentioned earlier if there would be enough room when you cut the turbo elbow to clamp something on...Check it out, and if you are SURE that you are going to end up cutting it, make SURE there is room. That was my desire to do before I figured out my current setup, and I just didn't see there being enough room after you make the elbow straight enough. And also consider that with the pressure of the downforce current of air hitting your custom elbow, even a t-clamp may not hold a fitting onto it. If you have any questions on how I hooked up mine, pm me!!

Ben

 

[spectr019]

Boosted,

I've had cast-iron on the mind all day (I know that sounds weird), but yes, aluminum!! Sorry!! Thanks

Ben

 

[rEclipserGST]

running a t-25 with a front mount is a stupid idea. You will not gain anything besides lag vs the stock sidemount as long as you are within the t-25's efficiency island of 15-16 psi.

The thing is simply not designed to flow through that much piping.

Buy a 16g.

He mentioned above that he is planning to upgrade the turbo... this is a SUPPORTING MOD. So how is it stupid? He might just have to wait 30 days... but why wait to install something you can install NOW. THAT is why he is posting here and brainstorming. And "lag" with a t25??? Are you serious? That turbo is small, HOW would it lag? It wouldnt even matter if he noticed a difference either because he is UPGRADING THE TURBO.

 

[Dsmj89]

He mentioned above that he is planning to upgrade the turbo... this is a SUPPORTING MOD. So how is it stupid? He might just have to wait 30 days... but why wait to install something you can install NOW. THAT is why he is posting here and brainstorming. And "lag" with a t25??? Are you serious? That turbo is small, HOW would it lag? It wouldnt even matter if he noticed a difference either because he is UPGRADING THE TURBO.

AMEN my friend, thank you, couldn't have said it better myself.