99 spec twins? 20b turbos on stock twin manifold?
08-13-07, 03:49 PM
#1
99 spec twins? 20b turbos on stock twin manifold?
So I'm looking through my friends stack of complete twins to replace mine and see these. I think they're 99spec but I could be wrong...I also saw some 20b setups...
So my questions are:
Are these 99 spec twins?
Can you modify the stock twin manifold with 20b turbos?
So my questions are:
Are these 99 spec twins?
Can you modify the stock twin manifold with 20b turbos?
Last edited by Copeland; 06-01-08 at 03:19 AM.
08-13-07, 05:01 PM
#2
It's dark like Poe.
99-spec? Can't tell.
I read somewhere in Yamaguchi's book that the 20B turbos flow LESS than the 13B's. I don't know if it's true or not, but even if they flow equally, why not save yourself the trouble of retrofitting them and use 13B turbos?
I read somewhere in Yamaguchi's book that the 20B turbos flow LESS than the 13B's. I don't know if it's true or not, but even if they flow equally, why not save yourself the trouble of retrofitting them and use 13B turbos?
08-13-07, 07:14 PM
#4
Ok well I was just wondering since the turbos themselves are larger. I was going to bolt them to the 13b exhaust housing.
Anyone know if those are 99 spec? I've never seen them before...Completely different than stock twins. I don't think they're aftermarket...
Anyone know if those are 99 spec? I've never seen them before...Completely different than stock twins. I don't think they're aftermarket...
08-13-07, 10:49 PM
#5
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Look at the part number on the rear compressor housing. If it starts with "N3G1", they're RZ turbos. There are a couple other configurations used 99-02 with other part numbers, but they're not the "280bhp" turbos.
Looking at your photo, I don't see the abradeable seal in the compressor housing, so they're not RZ turbos.
Looking at your photo, I don't see the abradeable seal in the compressor housing, so they're not RZ turbos.
08-14-07, 02:01 AM
#6
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Look at the part number on the rear compressor housing. If it starts with "N3G1", they're RZ turbos. There are a couple other configurations used 99-02 with other part numbers, but they're not the "280bhp" turbos.
Looking at your photo, I don't see the abradeable seal in the compressor housing, so they're not RZ turbos.
Looking at your photo, I don't see the abradeable seal in the compressor housing, so they're not RZ turbos.
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08-14-07, 09:16 PM
#9
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I think those twins are either 20b twins or 13B Cosmo twins - both of which are smaller than the FD twins and not worth any effort.
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