Banjo Bolt/Wastegate
#1
Racer
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Join Date: Jun 2001
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Banjo Bolt/Wastegate
Those of you with APE Stage 2 chips and non stock/modified wastegates. Are you running with APE Banjo Bolt or Stock Banjo Bolt ?
Would appreciate any information/opinions
Thanks.
Would appreciate any information/opinions
Thanks.
#2
If you are running a shimmed waste gate then you can not run the banjo bolt at the same time. I would run the banjo bolt with the chips since them have been programed to that level of boost.
#4
Drifting
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Eugene,
I would guess that as you are running a modified Wastegate, It's going to be able to allow more boost. In theory, if you close off the air thats getting to the wastegate, you can't run full boost! Add a boost enhancer in your system, and you won't be sorry!!
I would guess that as you are running a modified Wastegate, It's going to be able to allow more boost. In theory, if you close off the air thats getting to the wastegate, you can't run full boost! Add a boost enhancer in your system, and you won't be sorry!!
#5
Race Director
I would guess that as you are running a modified Wastegate, It's going to be able to allow more boost. In theory, if you close off the air thats getting to the wastegate, you can't run full boost!
Best bang-for-the-buck value is to shim your wastegate yourself and use an adjustable boost controller. That's because even with the APE banjo-bolt restrictor, the weak spring the in stock wastegate will bleed off boost at high-rpm. With the stock turbos, you lose boost at high-rpm due to maxing out the turbo anyway, so you want to extract the most out of your wastegate as possible.
#7
Race Director
Piece of cake. Just add some washers under the wastegate diaphram. First you have to remove the wastegate from the car:
Shimming the wastegate is a simple matter of prying the diaphram upwards with a chisel or screwdriver (after undoing the 3 allen-head bolts). Then slipping in three 3.5mm washers (one per bolt). If you can't find 3.5mm washers, you can make up 3 stacks of washers (make sure they all add up to same thickness). Then put the bolts back on and put the wastegate back on the car, that's it!.
The increased spring preload should allow the wastegate to hold the set boost to redline now (exhaust pressure won't force the wastegate open on its own). But this is provided that your turbo doesn't run out of steam first.
Shimming the wastegate is a simple matter of prying the diaphram upwards with a chisel or screwdriver (after undoing the 3 allen-head bolts). Then slipping in three 3.5mm washers (one per bolt). If you can't find 3.5mm washers, you can make up 3 stacks of washers (make sure they all add up to same thickness). Then put the bolts back on and put the wastegate back on the car, that's it!.
The increased spring preload should allow the wastegate to hold the set boost to redline now (exhaust pressure won't force the wastegate open on its own). But this is provided that your turbo doesn't run out of steam first.