Originally posted by LionheartFC3S
Nothing about the turbo is stock, or came from the stock turbo. Full boost isn't till so late, BECAUSE of it's size. This turbo is capable of a solid 18psi safely, but of course, I'd never run that much on the stock seals.
So to answer your question, no. It's not just a compressor upgrade. The entire turbo w/ internal wastegate, are completely different. It IS Garret turbo, I was told it's a "T4", which I believe is capable of 18psi.
Nothing about the turbo is stock, or came from the stock turbo. Full boost isn't till so late, BECAUSE of it's size. This turbo is capable of a solid 18psi safely, but of course, I'd never run that much on the stock seals.
So to answer your question, no. It's not just a compressor upgrade. The entire turbo w/ internal wastegate, are completely different. It IS Garret turbo, I was told it's a "T4", which I believe is capable of 18psi.
That said, because you are using the RB downpipe, which bolts to the stock turbine housing, your turbo therefore is a compressor upgrade on stock hotside... clearly noted by the pictures which show placement of the turbo in the same location as stock.
If your turbo does not get full boost until 5000rpm, then there is seriously something wrong with the car. Even most full standard T4 turbo's (any turbo using a T4 turbine inlet flange), except large frame T4's, will get full boost anywhere from 2800rpm - 4,500rpm (depending on which sub-family of T4's: T04B, T04E, T04S, T04R).
Also, stock 3piece/2mm apex seals have been known to take up to and over 30+psi boost as noted by several drag front-runners of the past.
Another thing, running just a compressor upgrade past 14-15psi boost is not a good idea for the life of the turbo, as the stock turbine housing and turbine wheel do not flow enough to offset the amount the compressor wheel flows. It will put a much greater side-load on the turbo.
Any turbo is capable of 18psi. How much boost a turbo can put out is up to the wastegate and the engine... not up to the turbo. However, what is up to the turbo is how efficient it is at that boost level. To find out how efficient a turbo is at a certain boost level, you would have to read and understand a compressor map.
Now the reason I'm pointing all of this out is that I don't want some kid buying your car and thinking rotary turbo's suck just because the car you sold to him will not hit full boost until 5000rpm. Rotary-powered cars already have a bad enough rep from the many idiots out there.
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