Slant Six Forum :: Very basic Turbo wastegate Question.

T3/T4 hybrids were built to spool up quickly on small engines that can make a lot of high RPM power which is supported by the larger T4 compressor. Yes, the can be made to work on a larger engine, but a .63 A/R turbine is much too small for a 225 and will create a lot of back pressure. You'd see high boost numbers, but the exhaust will be very restricted so the mass flow through the engine and the resulting horsepower will also be restricted.

.63 A/R will work fine on the 225. My car ran 11's with this last year and expect to go faster this year. PTE 6262DBB with .63 a/r

Quote:

.63 A/R will work fine on the 225. My car ran 11's with this last year and expect to go faster this year. PTE 6262DBB with .63 a/r

Isn't your exhaust turbine a T4 though?

Author:	Joshie225 [ Thu Aug 26, 2010 7:59 pm ]
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A turbo that's suited for a 1.6L Honda is very likely to be a poor match for a 3.7L slant six.

Author:	silver [ Thu Aug 26, 2010 9:21 pm ]
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it says that it good from 2.0 up to a 3.5 its the brand name that was realy botherin me.. TRS are they well known ?

Author:	Sam Powell [ Fri Aug 27, 2010 4:32 am ]
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If I understand how this works, you will get boost too quickly, and then not enough boost as RPM's rise at WOT with a turbo that is too small. For the record Joshua, I did put in the check valve and hooked up the vacuum line on the back side of the waste gate control, and it worked like a charm. Now is the time to get one of the simple boost controls that Dan suggested, and start playing with increasing boost levels. Sam

Author:	Matt Cramer [ Mon Aug 30, 2010 9:59 am ]
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If it's these guys: http://trsmotorsport.com/ They are a Precision Turbo dealer. It is possible some other outfit may have a similar name. Not many turbos that I'd recommend for both a Civic and a slant six - do you have any details, part numbers, etc?

Author:	silver [ Mon Aug 30, 2010 8:55 pm ]
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it say's here its a T/3 T/4.. it has M12 on the boosted outletA/R.50 on the boost side and A/R.63 on the manifold side .. sorry about the lack of knolage.. but i guess that's Y im here.. thanks again Rick

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Very basic Turbo wastegate Question. https://www.slantsix.org/forum/viewtopic.php?t=40485	Page 2 of 3

Author:	Joshie225 [ Mon Aug 30, 2010 9:49 pm ]
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T3/T4 hybrids were built to spool up quickly on small engines that can make a lot of high RPM power which is supported by the larger T4 compressor. Yes, the can be made to work on a larger engine, but a .63 A/R turbine is much too small for a 225 and will create a lot of back pressure. You'd see high boost numbers, but the exhaust will be very restricted so the mass flow through the engine and the resulting horsepower will also be restricted.

Author:	Matt Cramer [ Tue Aug 31, 2010 8:11 am ]
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Could very well be one of those cheap Chinese turbo imports. Seen some of them work for 20,000 miles or more, others that were leaking oil after a month. And like Joshua said, it's too small for a slant six.

Author:	Shaker223 [ Tue Aug 31, 2010 12:17 pm ]
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Quote: T3/T4 hybrids were built to spool up quickly on small engines that can make a lot of high RPM power which is supported by the larger T4 compressor. Yes, the can be made to work on a larger engine, but a .63 A/R turbine is much too small for a 225 and will create a lot of back pressure. You'd see high boost numbers, but the exhaust will be very restricted so the mass flow through the engine and the resulting horsepower will also be restricted. .63 A/R will work fine on the 225. My car ran 11's with this last year and expect to go faster this year. PTE 6262DBB with .63 a/r

Author:	silver [ Tue Aug 31, 2010 1:05 pm ]
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wow thats a little more like it thank's a bunch.. is that a 4 barrale carb i see there ? hows that on the street ?

Author:	Shaker223 [ Tue Aug 31, 2010 1:20 pm ]
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No Problems at all. 600 DP Holley. No driveability issues at all. Last I checked. 19mpg including 3 passes at the track.

Author:	Joshie225 [ Tue Aug 31, 2010 3:36 pm ]
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Quote: .63 A/R will work fine on the 225. My car ran 11's with this last year and expect to go faster this year. PTE 6262DBB with .63 a/r Isn't your exhaust turbine a T4 though?

Author:	silver [ Tue Aug 31, 2010 6:49 pm ]
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awsume video shaker.. that thing really haul's.. mine is a 68 4 door lol.. but i still love it. I have 69 #match 340 4 speed swinger 72 swinger 360 with a 904. 73 swinger 440 727. and a 68 GT 318 4 speed .. but there's something about that buzzin half dozen i drive it every day.. got it cheap 2500 and it had 62000 on it .. i think it would be fun 2 turbo it.. if you have any insight and tip's it would be great help.. thought about EFI but like the thought of a carb

Author:	Shaker223 [ Tue Aug 31, 2010 6:52 pm ]
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Quote: Quote: .63 A/R will work fine on the 225. My car ran 11's with this last year and expect to go faster this year. PTE 6262DBB with .63 a/r Isn't your exhaust turbine a T4 though? Not sure. This turbo is a direct bolt in Buick GN turbo. It has a 3 bolt flange that has a 2.25" round inlet diameter. The Cold side exhaust uses a standard Buick flange (custom 3.5" downpipe in my case) with an internal wastegate.

Author:	Sam Powell [ Tue Aug 31, 2010 7:52 pm ]
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Tom, What boost are you running? Also, what compression ratio? Sam

Author:	Shaker223 [ Wed Sep 01, 2010 8:25 am ]
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20+ PSI and 7.7:1 cr

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