T-25 turbo project fail *VID*
 

So i decided to turbo my civic with a dinky Garrett T-25 i had lying around, I thought it would make decent power. It spooled fast, but after 5k, the car wouldn't pull. On the highway, the turbo would get red hot during normal driving, and would overheat my engine in 6 seconds flat if i put my foot down. As of right now This T-25 has been thrown out and something bigger is being installed. Here are pictures for your enjoyment.

D16Y8 Block
http://i225.photobucket.com/albums/d...v/P1050282.jpg
http://i225.photobucket.com/albums/d...v/P1050353.jpg
http://i225.photobucket.com/albums/d...v/P1050351.jpg
http://i225.photobucket.com/albums/d...v/P1050354.jpg
A little piece of HMT
http://i225.photobucket.com/albums/d...v/P1050379.jpg
http://i225.photobucket.com/albums/d...v/P1050380.jpg
http://i225.photobucket.com/albums/d...v/P1050388.jpg
http://i225.photobucket.com/albums/d...v/P1050389.jpg
Rods and Vitara Pistons
http://i225.photobucket.com/albums/d...v/P1050291.jpg
Greedy fmic and tubing
http://i225.photobucket.com/albums/d...v/IMG00114.jpg
Rattle can wrinkle
http://i225.photobucket.com/albums/d...v/IMG00015.jpg
This is how it came together
http://i225.photobucket.com/albums/d...v/IMG00119.jpg
http://i225.photobucket.com/albums/d...v/IMG00117.jpg
http://i225.photobucket.com/albums/d...v/IMG00116.jpg
http://i225.photobucket.com/albums/d...v/IMG00127.jpg
http://i225.photobucket.com/albums/d...v/IMG00627.jpg
Cat making some final adjustments
http://i225.photobucket.com/albums/d...v/IMG00109.jpg
http://i225.photobucket.com/albums/d...v/IMG00626.jpg
http://i225.photobucket.com/albums/d...v/IMG00630.jpg

Running 10 psi of boost at mid range and then boost tapering off to 8 psi at around 6k wasn't too fun. 15.020 @ 88.92mph was my best track time on this setup. I hope someone out there who reads this doesn't try to build a "fast spooling" "good low-end" setup, learn from other people's fail. I would post videos but they are just too disappointing and i want to save myself the embarrassment.
http://www.youtube.com/watch?v=IGDbpWTfBcI

Re: T-25 turbo project fail
 

i seen a 95 hatch w/ d16z6 and t-25 on 10psi at track run a 13.98 you should be able to do better then 15's something is wrong. also is your internal wastegate flapper welded because if its not nothing is stopping it from causing it to leak off exhaust pressure. Also your drain looks like it comes down then turns then turns again, i could be wrong but i dont think that would work very well i know it would be best if it were sloped straight down to the top of the pan. That turbo should easily do 10psi to redline. :-\

Re: T-25 turbo project fail
 

maybe that manifold is rubbish? Internal wastegate flapper is tied down with bailing wire. Also i had what looked like 1-1/2" or 1- 3/4" exhaust. Plus the oil drain was twisted like that to go around the downpipe.

Re: T-25 turbo project fail
 

+1

Re: T-25 turbo project fail
 

Oh man.....your wastegate dump pipe is no good... :y

You have to take out to the atmesfere like everyone does, thats why you have so much presure in your manifold and turbo.

And is it 5 bolt flange or 6 you dp flange?

Re: T-25 turbo project fail
 

It's a 5 bolt flange. My WG dump is nasty and it does dump into the atmosphere

Re: T-25 turbo project fail
 

what do you have for tuning and you should at least go 2-2.5" exhaust and i believe if the manifold isnt leaking then it would be fine for what you are boosting.
btw the wastegate dump is not the problem, you should get the hot gas out of the engine bay but it will not make it run like it should be.
When do you hit full boost?? it seems like somthing is leaking on the exhaust side before the turbo. maybe a gasket leaking or crack in manifold or somthing.

Re: T-25 turbo project fail
 

oh yea another thing, what did you gap your plugs to??

Re: T-25 turbo project fail
 

yeah its called a wastegate. and btw his wg is vented to the atmosphere

Re: T-25 turbo project fail
 

Max boost would come in at about 3500. Tonight i just finished my 3" exhaust, so that problem is fixed. The car is also tuned on Crome with DSM 450's.

One more thing: My african american brother forgot to put in a gasket when he bolted the manifold up.

Re: T-25 turbo project fail
 

.022

Re: T-25 turbo project fail
 

ya, sounds like a flow issue. I ran a t25 for a while. it pulled 12psi to redline without a prob

Re: T-25 turbo project fail
 

do you mean to tell me my HMT manifold doesn't work? :'(

Re: T-25 turbo project fail
 

no ----, im saying besides that for it not to hold 10psi. if the gate is set for 10 it should hold ten at least thats how mine works

Re: T-25 turbo project fail
 

this could be a problem just look for black spots where exhaust is leaking if you dont feel, see, or hear it then dont worry about it.

Re: T-25 turbo project fail
 

as for a .22 gap i have found it best a .28, .22 might be a little to close. yet again im not 100% just letting you know what works best for me.

Re: T-25 turbo project fail
 

Does your dp flange looks like this:
https://i330.photobucket.com/albums/...imkag/gt25.jpg

because I have one with 3" pipe, looks very clean. for free

I had 16psi on that wastegate with GT28rs turbo, so the wastegate should work just fine.

Re: T-25 turbo project fail
 

there were black spots, it was leaking. The t-25 setup is taken out and its for sale if anyone wants it.

If the turbo makes full boost at 3500 rpm, shouldn't it work fine at redline even with the leaks?

Re: T-25 turbo project fail
 

That's my flange. So you are giving it away for free?

Re: T-25 turbo project fail
 

Nop, because I had my manifold cracked, It didn't want to spool

If your gonna use it, yes its free

Re: T-25 turbo project fail
 

not when your wastegate opens w/ other leaks

Re: T-25 turbo project fail
 

but he is saying it is spooling just does not hold boost to redline

Re: T-25 turbo project fail
 

no ---- i was joking

Re: T-25 turbo project fail
 

I want it cause its free

Re: T-25 turbo project fail
 

hmm... it was very very weak at redline at 8psi. I was thinking the little turbo just chokes the engine up there.

Re: T-25 turbo project fail
 

no it doesnt choke the enigne, the exhaust maybe but not the turbo, they are efficient i believe to like 14psi and you have a d16 not a k24 that turbo should work fine on ure engine at 10psi

Re: T-25 turbo project fail
 

maybe just poor tuning ;)

Re: T-25 turbo project fail
 

+1 that turbo should pull all the way till redline. did you forget it was designed for a 2.0L.

Re: T-25 turbo project fail
 

probably a few things causing slow times but w/ an 89mph trap speed it is dieing on top end

Re: T-25 turbo project fail
 

steady 12.5 afr's throughout

Re: T-25 turbo project fail
 

poor driver maybe also? slipping clutch?

Re: T-25 turbo project fail
 

i say re-gap plugs, fix exhaust leak and put 2.5" exhaust on and run a low 14/ high 13 :y
oh and yea maybe slipping clutch but i figured that would have killed him out of the hole 2 which would not allow for 15.0 @88.9mph and he would probably know about it.

Re: T-25 turbo project fail
 

.025 on plugs?

ACT pressure plate and Exeddy disc, i was also running a pair of tiny slicks. my top end was dead

From the feedback you guys have given me i should have probably given the T-25 a second chance, but has already been replaced with a cdm T3/T4 and i just finished my 3" exhaust today.
http://i225.photobucket.com/albums/d...v/IMG00640.jpg
http://i225.photobucket.com/albums/d...v/IMG00642.jpg
http://i225.photobucket.com/albums/d...v/IMG00641.jpg

Re: T-25 turbo project fail
 

make sure of no exhaust leaks and i would go .28 on the gap and probably get the ngk bkr7e or w/e the ---- they are but they are 1 heat range colder.

Re: T-25 turbo project fail
 

Looks good, put magnaflow muffler and it would be just perfect, like I have ;D :y

Re: T-25 turbo project fail
 

I want to try straight pipe first ;D

Re: T-25 turbo project fail
 

My magnaflow sound realy deep, I love it. And cups......... >:D

Re: T-25 turbo project fail
 

Is it a deep muscle car sound or a deep ricer sound?

Re: T-25 turbo project fail
 

muscule car, deep deep, like deep deep deep deep deep deep deep deep deep deep deep deep deep deep deep deep deep deep deep deep .......... ;D ;D ;D

Re: T-25 turbo project fail
 

oooh. if i had money you would have me sold. No job for 4 months plus school > me