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Sep 23, 2009, 05:17 PM
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#1
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Newbie
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Location: Clifton, NJ
Posts: 37
Drives: evolution X
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need retune after switching from straight tp to res/catted one??
as title says do i need retune my car after switch to more restrictive tp??
tahnks for opinnions.
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Sep 23, 2009, 05:18 PM
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#2
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Location: Netherlands
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Drives: Evolution IX GSR EDM
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ofcourse..
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Sep 23, 2009, 05:20 PM
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#3
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Location: Clifton, NJ
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Drives: evolution X
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yeah that's what i tought, i have to put resonated tp b/c cannot stand drone any more. it's even worse with windows up , and winter is coming..
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Sep 23, 2009, 08:35 PM
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#4
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Location: USA
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Drives: Evolution X GSR
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Uhhhh. Not really. In fact I wouldn't be suprised if nothing changed at all. the AFR might change a tiny bit, but as far as REQUIRING a retune I highly doubt it. Maybe some tuner can chime in.
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2008 Lancer Evolution X GSR
Baseline - 259whp @ 21PSI *stock turbo*
Tuned - 358whp @ 25PSI *stock turbo*
Tuned by TTP Engineering - Orlando, FL
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Sep 23, 2009, 08:36 PM
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#5
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Evolved Member
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Location: Maryland
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Drives: AS Evolution X GSR SSS Traded 9 MR
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^ that. wont be that big of a change but to get the best gains or in your case goin backwards in your gains a tune would be better.
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Evolution X GSR SSS
2007 & 2008 Best Mitsu OC MD Car Show
2nd 2009
LaScuola Motorsports
Tuned by Kreionic
12.8 @ 108
Advan RS 19x10 // ARC Knob // BC Coilovers // Bride Custom Shiftboot, Armrest & Door Panels // Custom CF Wrapped Dash // Defi White Racer // Rexpeed CF Hood Vent, CF Antenna, and CF Fender Vents // Ultimate Racing O2/DP, TP, Catback
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Sep 23, 2009, 09:39 PM
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#6
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Evolving Member
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Location: Buffalo, NY
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Drives: Evo X GSR
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You don't need a tune at all. As far as the exhaust is concerned, you're going from a straight pipe to a straight pipe. Resonators are straight through. All you're doing is quieting the exhaust tone, not adding any restriction whatsoever.
Even if you were swapping to a high flow cat, they flow enough that there isn't a significant restriction which would require a retune.
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2008 Octane Blue Evo X GSR • SSS / Navi / Aero
Engine • Cobb AP • AMS Intake • Nisei UICP & LICP • ETS 4" Intercooler • Tial 50mm BOV • T1R O2 Downpipe • Custom 3" high flow cat • Custom 3" dual catback exhaust
Chassis • Gram Lights 57 Maximum 18x9.5 +22 • BFG g-Force Sport 245/40-18 • Eibach springs • Whiteline rear swaybar
Exterior • APR Front splitter • AMS/Gates gurney flap • Ralliart taillights
Interior • TWM Short throw shifter • AMS shifter bushings • AEM Analog boost gauge
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Sep 23, 2009, 09:41 PM
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#7
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Location: Boulder, Colorado
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Probably not but i guess for IDEAL performance you might want to.
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335hp/345 ft-lbs @25psi on 91oct (5500 ft. altitude...) by JustDSM
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Sep 23, 2009, 09:42 PM
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#8
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Location: Boulder, Colorado
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Drives: '06 MR SE
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Quote:
Originally Posted by ScottSpeed21
You don't need a tune at all. As far as the exhaust is concerned, you're going from a straight pipe to a straight pipe. Resonators are straight through. All you're doing is quieting the exhaust tone, not adding any restriction whatsoever.
Even if you were swapping to a high flow cat, they flow enough that there isn't a significant restriction which would require a retune.
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This is probably pretty accurate. I don't think the resonation would change the flow a whole lot.
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335hp/345 ft-lbs @25psi on 91oct (5500 ft. altitude...) by JustDSM
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Sep 23, 2009, 10:05 PM
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#9
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Evolving Member
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Location: Buffalo, NY
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Drives: Evo X GSR
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Resonation doesn't change the flow at all. There's nothing inside a resonator that protrudes into the exhaust stream. It's a straight pipe.
Straight through, no restriction, just a quieter tone afterwards
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2008 Octane Blue Evo X GSR • SSS / Navi / Aero
Engine • Cobb AP • AMS Intake • Nisei UICP & LICP • ETS 4" Intercooler • Tial 50mm BOV • T1R O2 Downpipe • Custom 3" high flow cat • Custom 3" dual catback exhaust
Chassis • Gram Lights 57 Maximum 18x9.5 +22 • BFG g-Force Sport 245/40-18 • Eibach springs • Whiteline rear swaybar
Exterior • APR Front splitter • AMS/Gates gurney flap • Ralliart taillights
Interior • TWM Short throw shifter • AMS shifter bushings • AEM Analog boost gauge
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Sep 23, 2009, 10:15 PM
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#10
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Evolved Member
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Location: Cleveland, OH
Posts: 1,315
Drives: 00 Eclipse GT SDS Stg. 3 & 08 RR EVO X GSR
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No retune needed. As long as pipe diameter is the same.
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List:
-CBRD Tune -COBB AP -COBB UICP, LICP, BOV HP -COBB SFI -COBB Turbo Inlet Pipe -COBB Sway Bars -ETS 4" FMIC -AMS DP -T1R Exhaust -MXP TP -FORGE WGA -xMR Catch Cans -AMS Front Rollerstop -AMS Fuel Rail -evoDynamics 3 Port -Deatschwerks 800cc -Techna-Fit SS Lines -TWM Short Shifter -WORKS Bushings -SWIFT Sport-Mach's -Whiteline Kit -AEM UEGO -STRI PSI Gauge -Rally Armor Mudflaps -PERRIN 3" Ant.
Future:
ROTA Torque
CBRD BBK Turbo
Kelford Stg.2 w Springs
SteepSpeed Exhaust Manifold
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Sep 24, 2009, 02:45 PM
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#11
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Location: Clifton, NJ
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Drives: evolution X
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thanks guys!!! that's good news spoke with my tuner and he confirms that too. have to get resonated tp at least just for winter , drone with closed windows during highway cruise is CRAZY!!! hope that resonated tp gonna help me.
thanks again!!
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Oct 25, 2009, 07:56 PM
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#12
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Location: Miami FL
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Drives: 2010 GG EVO X GSR / SSS
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it will
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Oct 26, 2009, 10:09 AM
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#13
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Newbie
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Location: Clifton, NJ
Posts: 37
Drives: evolution X
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yeah i put res tp about one month ago, it's way better less vibrations and drone. thinking about put one more actually.
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Tags
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add, bc, cai, cat, catted, coilovers, downpipe, dp, evo, evolutionm, exhaust, flow, force, garage, high, retune, tp  |
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