@gzhamierashvili Yes, Most KKR turbos do have overboost issue due to the internal wastegate being too small.
If you are running an R33 wind your timing as advanced as you can get it because retard timing causes over boosting. On my R33 I was running like 20 degrease of timing to stop the over boosting.
i hav a kkr560 on my 33 and im thinking of changing it 2 1 of these how dose it go? and wen dose it come on boost? the 560 is very lagy it comes on boost at about 4000 rpm
@elliott112233 I upgraded to a KKR560 after about 6 months of having the 480 on. Then I snapped a conrod and distroyed the engine so since I have gone all out on an RB30DET engine built, you can see my videos. KKR560 isn't that much more laggier... like 300rpm maybe 500rpm tops. They have the exact same exhaust side its just the front which is smaller on the 480. So they start to spool at about the same time but the 480 builds boost a little bit faster. Bigger front means slower boost increase.
do you had any problem with overboost?
gzhamierashvili 1 year ago
@gzhamierashvili Yes, Most KKR turbos do have overboost issue due to the internal wastegate being too small.
If you are running an R33 wind your timing as advanced as you can get it because retard timing causes over boosting. On my R33 I was running like 20 degrease of timing to stop the over boosting.
finnsk3 1 year ago
i hav a kkr560 on my 33 and im thinking of changing it 2 1 of these how dose it go? and wen dose it come on boost? the 560 is very lagy it comes on boost at about 4000 rpm
elliott112233 1 year ago
@elliott112233 I upgraded to a KKR560 after about 6 months of having the 480 on. Then I snapped a conrod and distroyed the engine so since I have gone all out on an RB30DET engine built, you can see my videos. KKR560 isn't that much more laggier... like 300rpm maybe 500rpm tops. They have the exact same exhaust side its just the front which is smaller on the 480. So they start to spool at about the same time but the 480 builds boost a little bit faster. Bigger front means slower boost increase.
finnsk3 1 year ago
does it work with the factory downpipe location?
KeiichiLe 3 years ago
.... You need to get a new dump pipe made as it is a V-Clamp setup but it sits in a simular location as it bolts up to the stock exhaust manifold.
finnsk3 3 years ago