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Forced Induction Turbo, Supercharger, Methanol, Nitrous


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Old 04-24-2013, 06:49 PM   #99
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Originally Posted by Frs300 View Post
I hope not

If i did im driving it back without a turbo. but i havent heard if the turbo was good or bad yet.
Have it checked regardless.

I had a friend with a 2.5RS which blew out a timing pulley. The valves hit the pistons and we found the STEM of an intake valve in the exhaust manifold. Considering how much confetti there was in your "event", it's worth giving the turbo a look-see to be 100% sure it didn't try to ingest anything.
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Old 04-24-2013, 08:05 PM   #100
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Originally Posted by Draco-REX View Post
Have it checked regardless.

I had a friend with a 2.5RS which blew out a timing pulley. The valves hit the pistons and we found the STEM of an intake valve in the exhaust manifold. Considering how much confetti there was in your "event", it's worth giving the turbo a look-see to be 100% sure it didn't try to ingest anything.
fa20club sent it off to get inspected
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Old 04-24-2013, 08:39 PM   #101
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Originally Posted by buditjoenawan View Post
Not to derail the original thread too much, but I just had to chime in regarding catalytic converters before the turbocharger. It is a TERRIBLE idea. So terrible, in fact, that Subaru STOPPED doing that after the 2003 WRX. @cf6mech's motor is fine, but his turbocharger is destroyed due to debris from the catalytic converter. At least that's how I understood the situation.

That said, please think twice about putting a turbocharger right after the stock header. ESPECIALLY that cat which isn't rated to withstand the kinds of heat a turbocharged setup produces.

Budi
Every STS turbo car puts the turbo after the cat. I've never heard of a cat failure being ingested by the turbine. Not to say it doesn't happen, but I would bet it's a rare scenario.
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Old 04-24-2013, 10:17 PM   #102
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Every STS turbo car puts the turbo after the cat. I've never heard of a cat failure being ingested by the turbine. Not to say it doesn't happen, but I would bet it's a rare scenario.
And how far away is the turbocharger from the cat in sts systems? Visualize the glowing hot turbine housing and merge collectors when the car is ran hard. Then visualize a cat right next to that. Not a good recipe. I would ask tuners and motor builders to chime in here.

Budi
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Old 04-24-2013, 11:49 PM   #103
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And how far away is the turbocharger from the cat in sts systems? Visualize the glowing hot turbine housing and merge collectors when the car is ran hard. Then visualize a cat right next to that. Not a good recipe. I would ask tuners and motor builders to chime in here.

Budi
I'm not really sure what the catalyst temp would be in comparison, but this is likely the culprit. But I do know that the sts systems do create quite a bit of backpressure. Perhaps EGTs should be looked at carefully to ensure the cat stays happy. But generally with a ceramic substrate catalyst the engine starts to melt before the cat falls apart... unless that catalyst has been overheated by running too rich of mixtures or burning oil.
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Old 04-25-2013, 12:08 AM   #104
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Originally Posted by SkullWorks View Post
That is unfortunate, I mentioned this to Don on the day he debuted the setup and he said I was uninformed and that that was very common, even tried to tell me OEM's did it all the time...Im sorry someone else had to learn that lesson for him.
Some cars do. My old mazdaspeed miata had one between the head and the turbo iirc. Early (u.s. model) wrxs had them in the uppipe as well.
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Old 04-25-2013, 04:38 AM   #105
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I think the clutch pictures are a bit telling, some amount of torture occured before this motor blew, wasnt just an easy drive home from the dealer and suddenly motor went bang with just mild driving - NO SIR
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Old 04-25-2013, 07:04 AM   #106
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Quote:
Originally Posted by Tradewind View Post
I think the clutch pictures are a bit telling, some amount of torture occured before this motor blew, wasnt just an easy drive home from the dealer and suddenly motor went bang with just mild driving - NO SIR
Reading the thread where FRS300 stated he blew his engine would help you even more than the pictures. OP never stated or tried to imply it was an "easy drive from the dealer and motor went boom with mild driving"......

Edit: I think I may have misunderstood your post, sorry was sleepy

Last edited by Sportsguy83; 04-25-2013 at 09:36 AM.
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Old 04-25-2013, 08:40 AM   #107
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I think the clutch pictures are a bit telling, some amount of torture occured before this motor blew, wasnt just an easy drive home from the dealer and suddenly motor went bang with just mild driving - NO SIR

Quote:
Originally Posted by Sportsguy83 View Post
Reading the thread where FRS300 stated he blew his engine would help you even more than the pictures. OP never stated or tried to imply it was an "easy drive from the dealer and motor went boom with mild driving"......
Clutch slipped when motor blew.
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Old 04-25-2013, 09:06 AM   #108
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Which headgaskets and studs are you using?
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Old 04-25-2013, 09:17 AM   #109
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Quote:
Originally Posted by King Tut View Post
I was not aware of anyone running a motor with lower compression pistons yet. I think there was a guy in Texas with an Accelerated kit that was putting pistons in, but I haven't seen him post recently. Full Blown is waiting to blow theirs up to install pistons. I have definitely considered just swapping in lower compression pistsons and rods to get some more power.
I have a local customer with the low compression CP's and a set of Pauter rods running an AP turbo kit with a GTX3071. 18psi is low boost now.
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Old 04-25-2013, 10:11 AM   #110
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18 psi has always been low boost on a 2 litre engine
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Old 04-25-2013, 10:38 AM   #111
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Which headgaskets and studs are you using?
Not real sure what toni went with...which ones did your customer use?
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Old 04-25-2013, 11:02 AM   #112
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We have case studs and head studs available if FA20Club needs them for your build
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