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Author Topic: TURBO flutter after N249 bypass ??  (Read 13833 times)

Offline Chris#101

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TURBO flutter after N249 bypass ??
« on: 14 May 2012, 18:46 »
How do, I was just wondering if anyone with a similar spec or someone in know how could give a rough indication of max boost and rpm to expect from a stage 2 custom remap!?

my spec is

*'03 AUQ 180
*85k miles
*K03s
*Forge TIP
*Forge 007p
*Forge actuator yellow spring
*Craft '42 3" turbo back non res exhaust
*Toyosport F.M.I.C
*Toyosport C.A.I kit
*Oil catch can
*N249 valve bypass
*Devils own water/meth injection

thanks  :smiley:

***EDIT READ A FEW POSTS DOWN FOR TURBO FLUTTER AFTER N249 BYPASS***
« Last Edit: 15 May 2012, 19:56 by Chris#101 »
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          2003 1.8T: R-tech Live Cutom Stage 2 remap: N249 Bypass : Forge T.I.P : Forge 007p  : Forge Actuator, yellow spring : Toyosports F.M.I.C : Toyosports C.A.I :                                                                   PCV simplified - oil catch can : 42' Draft 3" turbo back non res exhaust system : Devils own W.M.I : 231bhp & 258lbs-ft

Offline Chris#101

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Re: Max boost expected stage 2 cutom remap
« Reply #1 on: 14 May 2012, 20:47 »
Or anyone with a stage 2 ?  :smiley:
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          2003 1.8T: R-tech Live Cutom Stage 2 remap: N249 Bypass : Forge T.I.P : Forge 007p  : Forge Actuator, yellow spring : Toyosports F.M.I.C : Toyosports C.A.I :                                                                   PCV simplified - oil catch can : 42' Draft 3" turbo back non res exhaust system : Devils own W.M.I : 231bhp & 258lbs-ft

Offline Wazzzer

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Re: Max boost expected stage 2 cutom remap
« Reply #2 on: 14 May 2012, 22:07 »
I hit around 22psi peak on my stage 2
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1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175

Offline madhead1987

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Re: Max boost expected stage 2 cutom remap
« Reply #3 on: 14 May 2012, 22:08 »
just a guess as my mates leaon with similar mods is pushing 250 bhp and 39o somit nm of torque  :wink: :wink:
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Offline madhead1987

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Re: Max boost expected stage 2 cutom remap
« Reply #4 on: 14 May 2012, 22:09 »
Quote from: madhead1987 on 14 May 2012, 22:08
just a guess as my mates leaon with similar mods is pushing 250 bhp and 39o somit nm of torque  :wink: :wink:
and 24psi then hold at 22 i think
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Offline shaft69

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Re: Max boost expected stage 2 cutom remap
« Reply #5 on: 14 May 2012, 22:43 »
Quote from: Chris#101 on 14 May 2012, 18:46
How do, I was just wondering if anyone with a similar spec or someone in know how could give a rough indication of max boost and rpm to expect from a stage 2 custom remap!?

my spec is

*'03 AUQ 180
*85k miles
*K03s
*Forge TIP
*Forge 007p
*Forge actuator yellow spring
*Craft '42 3" turbo back non res exhaust
*Toyosport F.M.I.C
*Toyosport C.A.I kit
*Oil catch can
*N249 valve bypass
*Devils own water/meth injection

thanks  :smiley:
Whens it going in for spec 2 and who's doing it? R-tech?
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MK4 1.8t bored/stroked 2.0lt AEG crank, 83mm supertech pistons, intergrated rods, ACL race brgs, Flowed large port head, Supertech valves, All ARP bolts, GTX2871r turbo, Tial wastegate, 3" pipewerx dp, REVO stage 3 tune, Direct port water meth, MORE TO COME!!! Ready to go racing
Owner of bndynamix ltd. BMW and mini specialist
184 Wallgate, Wigan
WN3 4AL
07966492823.

Offline Chris.

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Re: Max boost expected stage 2 cutom remap
« Reply #6 on: 14 May 2012, 23:00 »
Less boost = better.
Mine at 248bhp was 21psi peak and holding 18psi.
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Offline Chris#101

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Re: Max boost expected stage 2 cutom remap
« Reply #7 on: 15 May 2012, 12:26 »
Quote from: shaft69 on 14 May 2012, 22:43
Quote from: Chris#101 on 14 May 2012, 18:46
How do, I was just wondering if anyone with a similar spec or someone in know how could give a rough indication of max boost and rpm to expect from a stage 2 custom remap!?

my spec is

*'03 AUQ 180
*85k miles
*K03s
*Forge TIP
*Forge 007p
*Forge actuator yellow spring
*Craft '42 3" turbo back non res exhaust
*Toyosport F.M.I.C
*Toyosport C.A.I kit
*Oil catch can
*N249 valve bypass
*Devils own water/meth injection

thanks  :smiley:
Whens it going in for spec 2 and who's doing it? R-tech?

As soon as I recieve the correct nozzle injectors for the wmi.

R-tech will be doing it, looking forward to the 3 hour drive home :cool: last time I spoke to them they were fully booked for weeks, so hoping to get booked in within the next month
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          2003 1.8T: R-tech Live Cutom Stage 2 remap: N249 Bypass : Forge T.I.P : Forge 007p  : Forge Actuator, yellow spring : Toyosports F.M.I.C : Toyosports C.A.I :                                                                   PCV simplified - oil catch can : 42' Draft 3" turbo back non res exhaust system : Devils own W.M.I : 231bhp & 258lbs-ft

Offline Chris#101

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Re: Max boost expected stage 2 cutom remap
« Reply #8 on: 15 May 2012, 19:54 »
*EDIT*

Instead of making another topic thought id do a bit of recyling :grin:

I did the N249 bypass at the weekend and just want clarrification that Ive did it right.

here's what ive done



Ever since doing this, under load im getting turbo flutter/stall  :huh: ive checked for split hoses loose connections and cant find anything, how ever this has only started happening since doing the bypass. If revving in neutral it 'blows off' as normal ie not flutter/stall.

bit baffled really, can anyone shed any light??


VIDEO

http://www.youtube.com/watch?v=O83h9a_K3GY
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          2003 1.8T: R-tech Live Cutom Stage 2 remap: N249 Bypass : Forge T.I.P : Forge 007p  : Forge Actuator, yellow spring : Toyosports F.M.I.C : Toyosports C.A.I :                                                                   PCV simplified - oil catch can : 42' Draft 3" turbo back non res exhaust system : Devils own W.M.I : 231bhp & 258lbs-ft

Offline Dalo Harkin

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Re: TURBO flutter after N249 bypass ??
« Reply #9 on: 15 May 2012, 20:04 »
I did the bypass and then after a week or so it annoyed me, so just scrapped the N249 and N112 delete with the resistors and forge blanking plate and made a massive difference, bay looks much neater.
as for the fluttering, what size tubing did you use and have you cable tied them all on / checked them all ?
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ARZ K03s, Oettinger Side Skirts, R32 front, Carbon stage 2, Forge 007p (yellow spring), Forge Actuator (yellow spring), Pipercross panel filter with DSG parts, N249 and N112 deleted, SAI deleted, Carbon canister deleted, Rear wiper deleted, Long Life turbo back custom exhaust with 200 cell sports cat, VR6/G60 clutch kit, Creation Motorsport TIP, Catch can, 'Wellycooler', K04 charge pipe, S3 ported inlet manifold - looks pretty standard on the outside though :)
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