Soon to turbo stock engine, suggestions?

Sko · 09-23-2005, 02:50 AM

Hey guys, I am having rallitek instal a prototype of their soon to be retail turbo kit. Anyways I currently have a secret weapon intake installed on my engine, I've been told I need a turbo cat-back exhaust and I've heard there are other things I can replace (other than pistons, rods, cams, etc...) that can increase effectiveness/performance of my soon to be turbo system. I would like to have these items before I let rallitek have my car for a week or so.

Anyways, mabe some wrx headers, would wrx intake manifold help? Among these things I am considering a super flow cat as well. So basically a completely differant exhaust system...

Any help appritiated.

Thanks guys!

Nick

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Drac9 · 09-23-2005, 03:03 AM

Wrx header will not work on your car, neither will that intake manifold. Get a nice 2.5 or 3" catback exhaust such as brullen, scoobysport, etc. Sell that intake.

Master2192 · 09-23-2005, 11:57 AM

I thought the exhaust manifold from a WRX will bolt up to the RS, except he won't be able to use it without the WRX crossmember. The intake manifold won't work for sure though.

Tats · 09-23-2005, 12:50 PM

Intake manifold will not. Exhaust will if you swap crossmembers or notch your stocker.

I can't say this enough. If you have a stock clutch, replace it with a stronger one FIRST. Your stocker will be toast very quick and it's easier to do before the turbo goes in.

Sko · 09-23-2005, 05:37 PM

Anyone know what the fuction of a resonator is on a midpipe?

Also, what on my car will break other than engine components, I'm talking drivetrain etc., when I push my car to 400chp?

Tats · 09-23-2005, 08:11 PM

Quote:

Originally Posted by Sko

Anyone know what the fuction of a resonator is on a midpipe?

Also, what on my car will break other than engine components, I'm talking drivetrain etc., when I push my car to 400chp?

A resonator is sorta like a "Pre_Muffler". It make the sound a bit quieter and gets rid of that droning that some exhausts make.

HP is not really ans RS-T's problem. Torque is what will kill you.

Unless you are the most easy going driver at that level kiss you tranny good bye. Shredded gears every where. I'd suggest if you can foot the $$ to go with an STi RA or hardend gears. Dogbox maybe. Also not sure how the stock center and rear viscous diffs will hold up.

Have your check book handy.....some RST's can break a lot of stuff, some by the grace of god don't.
Mostly it comes to driving style. Beat it an it will break.

Sko · 09-24-2005, 01:48 AM

Ok, so have my tuner tune for low steady torque? I've decided not to get an sti shortblock and just stick with stock internasl at 6psi or so, I could mabe get to 300chp with a new header, midpipe, and proper tuning?

So far I've heard I'll need a new clutch, and at 300chp I hope I dont wreck my tranny I've heard it's just as strong as a wrx tranny.

Anyways, anymore suggestions?

Really appritiate all the help!

Nick

kgb · 09-24-2005, 02:26 AM

Treat your tranny nice - it's going to be tough getting 300chp with only 6psi. But then again, I haven't seen the compressor map for a 40T vs the GT28R on the AVO kit. To achieve 300chp, you would definitely be looking at fuel upgrades

Sko · 09-24-2005, 09:25 AM

Yea, I'm thinking new injectors + rails... But 6-8 psi or so, I dunno how much power I will get, but I'll probably upgrade my header, and get a turbo cat-back.

Hoping for 270-300chp.

Nick

Drac9 · 09-24-2005, 11:42 AM

In general upgrading the header is not worth it. I ran mid 12's on the stcok exhaust manifold.

09-23-2005, 02:50 AM	#1
Sko Scooby Specialist Member#: 90396 Join Date: Jul 2005 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2005 Legacy 2.5i Brilliant Silver Metallic	Soon to turbo stock engine, suggestions? Hey guys, I am having rallitek instal a prototype of their soon to be retail turbo kit. Anyways I currently have a secret weapon intake installed on my engine, I've been told I need a turbo cat-back exhaust and I've heard there are other things I can replace (other than pistons, rods, cams, etc...) that can increase effectiveness/performance of my soon to be turbo system. I would like to have these items before I let rallitek have my car for a week or so. Anyways, mabe some wrx headers, would wrx intake manifold help? Among these things I am considering a super flow cat as well. So basically a completely differant exhaust system... Any help appritiated. Thanks guys! Nick * Registered users of the site do not see these ads.

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09-23-2005, 03:03 AM	#2
Drac9 Scooby Specialist Member#: 9861 Join Date: Sep 2001 Chapter/Region: RMIC Location: Colorado Springs, CO Vehicle: 1999 2.35 RS-T w/NOS Hybrid Rally Blue Pearl	Wrx header will not work on your car, neither will that intake manifold. Get a nice 2.5 or 3" catback exhaust such as brullen, scoobysport, etc. Sell that intake.

09-23-2005, 11:57 AM	#3
Master2192 RIP 10/12/83 to 02/10/08 Scooby Specialist Member#: 83254 Join Date: Mar 2005 Chapter/Region: NWIC Location: Roy, Washington Vehicle: 98 2.5 RS 04 WRX	I thought the exhaust manifold from a WRX will bolt up to the RS, except he won't be able to use it without the WRX crossmember. The intake manifold won't work for sure though.

09-23-2005, 12:50 PM	#4
Tats Scooby Specialist Member#: 5692 Join Date: Apr 2001 Chapter/Region: Tri-State Location: Lovely Florida, NY Vehicle: WTF? YES! I am better than you!	Intake manifold will not. Exhaust will if you swap crossmembers or notch your stocker. I can't say this enough. If you have a stock clutch, replace it with a stronger one FIRST. Your stocker will be toast very quick and it's easier to do before the turbo goes in.

09-23-2005, 05:37 PM	#5
Sko Scooby Specialist Member#: 90396 Join Date: Jul 2005 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2005 Legacy 2.5i Brilliant Silver Metallic	Anyone know what the fuction of a resonator is on a midpipe? Also, what on my car will break other than engine components, I'm talking drivetrain etc., when I push my car to 400chp?

09-24-2005, 01:48 AM	#7
Sko Scooby Specialist Member#: 90396 Join Date: Jul 2005 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2005 Legacy 2.5i Brilliant Silver Metallic	Ok, so have my tuner tune for low steady torque? I've decided not to get an sti shortblock and just stick with stock internasl at 6psi or so, I could mabe get to 300chp with a new header, midpipe, and proper tuning? So far I've heard I'll need a new clutch, and at 300chp I hope I dont wreck my tranny I've heard it's just as strong as a wrx tranny. Anyways, anymore suggestions? Really appritiate all the help! Nick

09-24-2005, 02:26 AM	#8
kgb Scooby Specialist Member#: 1366 Join Date: Apr 2000 Chapter/Region: VIC Location: Delta, BC, Canada Vehicle: 2000 RS-T -> RSTi-8 Blue Ridge Pearl	Treat your tranny nice - it's going to be tough getting 300chp with only 6psi. But then again, I haven't seen the compressor map for a 40T vs the GT28R on the AVO kit. To achieve 300chp, you would definitely be looking at fuel upgrades

09-24-2005, 09:25 AM	#9
Sko Scooby Specialist Member#: 90396 Join Date: Jul 2005 Chapter/Region: NWIC Location: Portland, OR Vehicle: 2005 Legacy 2.5i Brilliant Silver Metallic	Yea, I'm thinking new injectors + rails... But 6-8 psi or so, I dunno how much power I will get, but I'll probably upgrade my header, and get a turbo cat-back. Hoping for 270-300chp. Nick

09-24-2005, 11:42 AM	#10
Drac9 Scooby Specialist Member#: 9861 Join Date: Sep 2001 Chapter/Region: RMIC Location: Colorado Springs, CO Vehicle: 1999 2.35 RS-T w/NOS Hybrid Rally Blue Pearl	In general upgrading the header is not worth it. I ran mid 12's on the stcok exhaust manifold.