Author Topic: golf 1.8t TURBO flutter after N249 bypass and sai removed  (Read 2236 times)

Offline vrsjaw

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hi remove the valves and sai and egr,,,now am gettng turbo chatter or flutter as they say,,av noticed my car is abit down on to en power,,,a checked all pipes,,av put my standard dv back on and yesturday i put the valves back on that are near dip stick and its still doing it...my car has stage 2 map with all the mods to suit...any help would be greatfull

Offline Chris.

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Re: golf 1.8t TURBO flutter after N249 bypass and sai removed
« Reply #1 on: 17 December 2012, 02:51 »
Did you run a pipe straight from inlet to DV?

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248bhp  278lbft R - Tech Powered 1.8T!!  - Gone but NOT forgotton

Offline vrsjaw

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Re: golf 1.8t TURBO flutter after N249 bypass and sai removed
« Reply #2 on: 18 December 2012, 01:00 »
yes i did, dv to inlet

Offline rockmonkey69

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Re: golf 1.8t TURBO flutter after N249 bypass and sai removed
« Reply #3 on: 18 December 2012, 01:02 »
Have you got a picture showing what you have done?
Also did you fit resistors in place of SAI and other valves removed?

Offline vrsjaw

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Re: golf 1.8t TURBO flutter after N249 bypass and sai removed
« Reply #4 on: 18 December 2012, 01:03 »
Did you run a pipe straight from inlet to DV?

.,,,,yes mate

Offline vrsjaw

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Re: golf 1.8t TURBO flutter after N249 bypass and sai removed
« Reply #5 on: 18 December 2012, 16:21 »
Have you got a picture showing what you have done?
Also did you fit resistors in place of SAI and other valves removed?

yes i fitted resistors but av put my stuff back on apart from sai and agr, and left 1 resistor for the sai pump, my car is still chattering,,,cheers

Offline Dalo Harkin

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Re: golf 1.8t TURBO flutter after N249 bypass and sai removed
« Reply #6 on: 18 December 2012, 20:46 »
how many resistors and what OHM etc did you use?
did you also rip the hard lines out?
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 :)

Offline Chris#101

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Re: golf 1.8t TURBO flutter after N249 bypass and sai removed
« Reply #7 on: 18 December 2012, 21:04 »
Mine did exactly the same when I bypassed the N249 valve and I couldnt get to the bottom of it, checked rechecked and checked for vacumm/ boost leaks to which I found none :huh:

http://www.youtube.com/watch?v=O83h9a_K3GY

How ever after changing my hotside IC pipework from 1.75" to 2.5" it dissapeared and blows off as normal. So I can only assume that I must of 'un disturbed' something when putting the larger pipework in  :laugh:


          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 vrsjaw

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Re: golf 1.8t TURBO flutter after N249 bypass and sai removed
« Reply #8 on: 18 December 2012, 22:39 »
how many resistors and what OHM etc did you use?
did you also rip the hard lines out?

i think they were 330 and 10 watt...used 4 of them,but as said only one now..

Offline vrsjaw

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Re: golf 1.8t TURBO flutter after N249 bypass and sai removed
« Reply #9 on: 18 December 2012, 22:42 »
removed all the pipes when i did it..but as said av fitted all apart from sai pump and egr...sounds mad when chattering but it cant be good for the turbo....my mate did his months ago and his is fine,,,,could just be that some cars like it and some dont