Admin
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Tuesday, December 19, 2017 10:40 AM
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CT26 and CT20b compatibility
I'm going to remove my high flowed CT26 from my MR2 race car soon, and I was thinking about fitting it to my ST205 GT4, which (I think) has a standard CT20b.
Are they a straight swap? If not, what needs to be changed?
Thanks.
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zmit
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Re: CT26 and CT20b compatibility
Wednesday, January 17, 2018 1:23 AM
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I'm surprised there's no comments here.... The manifold mount is the same. The dumppipe flange is the same SHAPE but the CT20B has an extra stud. You can remove the stud and it will still bolt to the CT26 dump pipe with the same CT26 gasket. I did see something about the oil feed fittings being a different size ( link to Randomity's post) I have another question on this though. Has anybody found the limits of highflowing a CT20B? I have an EXTREMELY oversized CT26 (GT35) and would like to swap turbine housings to a highflowed CT20B housing as it flows better. It seems the housing has far less meat on it to mill out though.
1992 SW20 GT ... and loving it...
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Road and Track
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Re: CT26 and CT20b compatibility
Wednesday, February 07, 2018 11:35 AM
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the oil pipe is different. the CT20 range used much smaller/lighter components. almost nothing internally . interchanges. the smaller shaft size and different hosuing makes 'hi-flowing" using a simple bigger wheel a bit more complicated, but not impossible. i did a couple on engines making well over 200kw. if you want a mega HP engine, dont use a Toyota CT turbo
Road & Track For more information and contact details for Road & Track, clickHERE
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maccardo94
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Re: CT26 and CT20b compatibility
Sunday, July 29, 2018 8:07 AM
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Im in the same boat. Have a gen 3 with a ct26 but the dp has the gen 3 o2 sensor bung. So i bought the berk downpipe with the o2 bug. The berk has the 7 bolts to manifold,but my oem manifold has 6.i was thinking about getting the 6 bolt gasket. Will it leak if i do this? Thanks Matt  Sent from my CPH1725 using Tapatalk
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Carmikey
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Re: CT26 and CT20b compatibility
Sunday, July 29, 2018 10:41 PM
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^^ 6 bolt gasket works fine, never had one leak yet. Just purchase a decent quality one. ..not cheap Chinese ebay gasket.
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maccardo94
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Re: CT26 and CT20b compatibility
Monday, July 30, 2018 0:08 PM
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Yeh i get most of my stuff from primedriven in the states. Its all oem stuff mostly
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Kook
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Re: CT26 and CT20b compatibility
Monday, July 30, 2018 0:59 PM
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maccardo94
Yeh i get most of my stuff from primedriven in the states. Its all oem stuff mostly
Sent from my CPH1725 using Tapatalk
Amamyama, partsouq, etc are usually the cheapest way to get OEM gear
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cogs
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Re: CT26 and CT20b compatibility
Thursday, June 20, 2019 9:40 AM
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☼ Best Answerby Admin Thursday, June 20, 2019 9:47 AM
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