3 Rotor
02-08-2003, 02:23 PM
#63
Senior Member
Join Date: Oct 2001
Location: St. Paul, MN
Posts: 288
Originally Posted by Racer X' date='Feb 1 2003, 02:45 PM
[quote name='j9fd3s' date='Feb 1 2003, 09:21 AM'] if i did a 1st gen 20b it would be all motor 
, it will make enough power bp
mike
mike
There's an individual who drag races a bridge port 20B NA and uses a 400HP shot of NOs... it can handle it as any motor can that is making that kind of power. All you're doing is adding more air = so add more fuel and keep your A/R in the safe zone...
500HP on a 20B is easily doable with a decently-sized turbo and with stock internals. I wouldn't bother with a T04 series at all, unless you're going to run 3 of them as they are much too small. You could do twin T-66's or a single T-70 or bigger (T-72, T-76, T-88, GT60 for examples) with a 1.32 or larger turbine.
The new Wolf 3D 4.0 will also run the 20B with split, the 3.0 will run w/out split trailing timing. The TEC 1 (w/o split and has high power coils) and the TEC 3 with (and has built-in high power coils and boost controller).
02-09-2003, 02:30 AM
#64
Senior Member
Join Date: Sep 2002
Location: Vanderhoof,BC(Canada)
Posts: 5,542
Originally Posted by Turbo III' date='Feb 8 2003, 12:23 PM
[quote name='Racer X' date='Feb 1 2003, 02:45 PM'] [quote name='j9fd3s' date='Feb 1 2003, 09:21 AM'] if i did a 1st gen 20b it would be all motor , it will make enough power bp
mike
mike
There's an individual who drag races a bridge port 20B NA and uses a 400HP shot of NOs... it can handle it as any motor can that is making that kind of power. All you're doing is adding more air = so add more fuel and keep your A/R in the safe zone...
500HP on a 20B is easily doable with a decently-sized turbo and with stock internals. I wouldn't bother with a T04 series at all, unless you're going to run 3 of them as they are much too small. You could do twin T-66's or a single T-70 or bigger (T-72, T-76, T-88, GT60 for examples) with a 1.32 or larger turbine.
The new Wolf 3D 4.0 will also run the 20B with split, the 3.0 will run w/out split trailing timing. The TEC 1 (w/o split and has high power coils) and the TEC 3 with (and has built-in high power coils and boost controller). [/quote]
I've been debating on a T78 with a TEC 3 lately.I hope I can get this car finished and find another FB to get started on a 20B swap project.I'm looking at a serious coin after a kit,wheels,single turbo conversion and the driveline itself.Prolly be 2 year project start to finish with just the twins if they clear.If not prolly be 2.5year deal with a custom manifold to relocate the turbo higher up and out of the way.
02-09-2003, 03:32 PM
#65
Senior Member
Join Date: Oct 2001
Location: St. Paul, MN
Posts: 288
I haven't seen the compressor map for a T-78 but since they seem to be sought after for big boost with the FD crowd, I'm assuming they are much too small for a 20B unless you put a 1.5 or bigger turbine on it.
I tried the starting with the twins and then going to the single route. In the middle of it, it became clear to me that it was not worth my time to waste with the stock twins. Going with the single right away made life much simpler and you can plan around making a manifold to fit your application vs. trying to shoe-horn it in.
My personal favorite is the TEC 3 or the Motec. I purchased my TEC I before the 3 became available unfortunately. Better resolution map, more GPO's, internal boost controller, same external high-cap coils, etc, etc.
I tried the starting with the twins and then going to the single route. In the middle of it, it became clear to me that it was not worth my time to waste with the stock twins. Going with the single right away made life much simpler and you can plan around making a manifold to fit your application vs. trying to shoe-horn it in.
My personal favorite is the TEC 3 or the Motec. I purchased my TEC I before the 3 became available unfortunately. Better resolution map, more GPO's, internal boost controller, same external high-cap coils, etc, etc.
02-09-2003, 11:59 PM
#66
Senior Member
Join Date: Sep 2002
Location: Vanderhoof,BC(Canada)
Posts: 5,542
Originally Posted by Turbo III' date='Feb 9 2003, 01:32 PM
I haven't seen the compressor map for a T-78 but since they seem to be sought after for big boost with the FD crowd, I'm assuming they are much too small for a 20B unless you put a 1.5 or bigger turbine on it.
I tried the starting with the twins and then going to the single route. In the middle of it, it became clear to me that it was not worth my time to waste with the stock twins. Going with the single right away made life much simpler and you can plan around making a manifold to fit your application vs. trying to shoe-horn it in.
My personal favorite is the TEC 3 or the Motec. I purchased my TEC I before the 3 became available unfortunately. Better resolution map, more GPO's, internal boost controller, same external high-cap coils, etc, etc.
I tried the starting with the twins and then going to the single route. In the middle of it, it became clear to me that it was not worth my time to waste with the stock twins. Going with the single right away made life much simpler and you can plan around making a manifold to fit your application vs. trying to shoe-horn it in.
My personal favorite is the TEC 3 or the Motec. I purchased my TEC I before the 3 became available unfortunately. Better resolution map, more GPO's, internal boost controller, same external high-cap coils, etc, etc.
02-11-2003, 10:43 AM
#67
Senior Member
Join Date: May 2002
Location: California
Posts: 22,465
Originally Posted by Turbo III' date='Feb 9 2003, 01:32 PM
I haven't seen the compressor map for a T-78 but since they seem to be sought after for big boost with the FD crowd, I'm assuming they are much too small for a 20B unless you put a 1.5 or bigger turbine on it.
I tried the starting with the twins and then going to the single route. In the middle of it, it became clear to me that it was not worth my time to waste with the stock twins. Going with the single right away made life much simpler and you can plan around making a manifold to fit your application vs. trying to shoe-horn it in.
My personal favorite is the TEC 3 or the Motec. I purchased my TEC I before the 3 became available unfortunately. Better resolution map, more GPO's, internal boost controller, same external high-cap coils, etc, etc.
I tried the starting with the twins and then going to the single route. In the middle of it, it became clear to me that it was not worth my time to waste with the stock twins. Going with the single right away made life much simpler and you can plan around making a manifold to fit your application vs. trying to shoe-horn it in.
My personal favorite is the TEC 3 or the Motec. I purchased my TEC I before the 3 became available unfortunately. Better resolution map, more GPO's, internal boost controller, same external high-cap coils, etc, etc.
mike
02-12-2003, 07:04 PM
#68
Senior Member
Join Date: Oct 2001
Location: St. Paul, MN
Posts: 288
I thought you knew the turbo DOES cost as much as the base engine...? I guess you could run the T78 but like I said, if the FD guys think that's a good turbo, then it's much too small for us without going dramatically bigger on the turbine side, you may want to start with a 1.32 or bigger.
How's that possible? Well, 50% more displacement is how. Think of this, what is the average turbine A/R that is being run on a 2-rotor? Around 1.02 to 1.1 or maybe even a 1.15? Not talking about drag turbos either. Look for what people are running with a large bridgeport or peripheral port for a single turbo and you may be close as in what to put on your 20B for air flow with a stock port, street port or more, you're looking at a much larger turbine A/R again.
How's that possible? Well, 50% more displacement is how. Think of this, what is the average turbine A/R that is being run on a 2-rotor? Around 1.02 to 1.1 or maybe even a 1.15? Not talking about drag turbos either. Look for what people are running with a large bridgeport or peripheral port for a single turbo and you may be close as in what to put on your 20B for air flow with a stock port, street port or more, you're looking at a much larger turbine A/R again.
