non-sequential question/confirmation and boost creep
#1
non-sequential question/confirmation and boost creep
hi guys,
i'm installing an REW into my 1st gen. was initially planning on going simplified sequential but when i attempted to put the motor into the engine bay the other day, i ran into a snag with the Turbo Control Actuator having clearance issues w/ the 1st gen front subframe. i'm not wanting to cut up the subframe and not really wanting to spend $ going with a good single set up but noticed that in the vacuum diagrams, going non-sequential removes this big actuator.
so some research pointed me to two different ways of going non-sequential.
Don't be a rikki: NON-Sequental
Full non-sequential conversion: Rotary Resurrection home of the budget rebuild.
so looking at the above 2 instructions, i'm wanting to do a compromise of the two. i know i'll be fully removing the rat's nest and associated vacuum lines and i already have the wastegate ported. what i'm concerned about is boost creep. the car will be set up with an upgraded intercooler, aftermarket intake, aftermarket downpipe, and an open exhaust (muffler only), and pfc. would keeping the turbo control and turbo precontrol flappers in place like in rikki's instructions (instead of removing them) help alleviate boost creep? and if keeping the turbo precontrol actuator in place w/ no vacuums attached, does it keep the flapper in the open position (i'm assuming so as i didn't see anything mentioned in rikki's instructions about it unless i'm reading it incorrectly)? tia.
i'm installing an REW into my 1st gen. was initially planning on going simplified sequential but when i attempted to put the motor into the engine bay the other day, i ran into a snag with the Turbo Control Actuator having clearance issues w/ the 1st gen front subframe. i'm not wanting to cut up the subframe and not really wanting to spend $ going with a good single set up but noticed that in the vacuum diagrams, going non-sequential removes this big actuator.
so some research pointed me to two different ways of going non-sequential.
Don't be a rikki: NON-Sequental
Full non-sequential conversion: Rotary Resurrection home of the budget rebuild.
so looking at the above 2 instructions, i'm wanting to do a compromise of the two. i know i'll be fully removing the rat's nest and associated vacuum lines and i already have the wastegate ported. what i'm concerned about is boost creep. the car will be set up with an upgraded intercooler, aftermarket intake, aftermarket downpipe, and an open exhaust (muffler only), and pfc. would keeping the turbo control and turbo precontrol flappers in place like in rikki's instructions (instead of removing them) help alleviate boost creep? and if keeping the turbo precontrol actuator in place w/ no vacuums attached, does it keep the flapper in the open position (i'm assuming so as i didn't see anything mentioned in rikki's instructions about it unless i'm reading it incorrectly)? tia.
#2
Mr. Links
iTrader: (1)
what i'm concerned about is boost creep. the car will be set up with an upgraded intercooler, aftermarket intake, aftermarket downpipe, and an open exhaust (muffler only), and pfc. would keeping the turbo control and turbo precontrol flappers in place like in rikki's instructions (instead of removing them) help alleviate boost creep? and if keeping the turbo precontrol actuator in place w/ no vacuums attached, does it keep the flapper in the open position (i'm assuming so as i didn't see anything mentioned in rikki's instructions about it unless i'm reading it incorrectly)? tia.
#3
thanks for the explanation mahjik. wastegate is already ported so if i see boost creep, will keep in mind about restricting the exhaust.
as for the precontrol flapper, w/ the precontrol actuator still in place, the flapper is in the closed position. there's debate whether open or close is better but i'll keep it closed for now since that is the easiest.
as for the precontrol flapper, w/ the precontrol actuator still in place, the flapper is in the closed position. there's debate whether open or close is better but i'll keep it closed for now since that is the easiest.
#4
Sponsor
iTrader: (41)
Do the full conversion. When porting the wastegate, make sure you also shape the inside of the turbine housing leading into it. Makes a big difference. On some cars you will creep no matter what. Your solution then is to tune for higher boost and deal with it, or install a restrictor plate or more restrictive exhaust system.
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