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Forum: Pontiac - Boost 03-26-2021, 10:36 PM
Replies: 28
Views: 6,516
Posted By LM93
Here you go.

Here you go.
Forum: Pontiac - Boost 03-26-2021, 05:25 AM
Replies: 28
Views: 6,516
Posted By LM93
This compressor map has one of the points almost...

This compressor map has one of the points almost on the 80% island, would it be noticeably different from 475 turbo? I've read that diesel turbos are designed for a narrower rpm range than gasoline...
Forum: Pontiac - Boost 03-24-2021, 10:53 PM
Replies: 28
Views: 6,516
Posted By LM93
I just guesstimated the points from the corrected...

I just guesstimated the points from the corrected airflow rates given in the calculated outputs chart in lbs/min.
Forum: Pontiac - Boost 03-23-2021, 10:53 PM
Replies: 28
Views: 6,516
Posted By LM93
I hit the compressor map for a BW S475SX with MS...

I hit the compressor map for a BW S475SX with MS paint. Are these points accurate? Matchbot doesn't have that model. The S475 efficiency points peak at 5000-6000rpm, as opposed to the 91S74. which...
Forum: Pontiac - Boost 03-23-2021, 10:04 PM
Replies: 28
Views: 6,516
Posted By LM93
That map is for a BW 91S74, actually. The...

That map is for a BW 91S74, actually. The turbine size is 91 EFR, 67.8 inducer, 92.2 exducer. Which of the four Product types(B,C,D,H) is the best match?
Forum: Pontiac - Boost 03-23-2021, 03:58 AM
Replies: 28
Views: 6,516
Posted By LM93
Point #3 on the turbine graph can't move up any...

Point #3 on the turbine graph can't move up any higher with a 12.9 boost.
Forum: Pontiac - Boost 03-22-2021, 04:53 PM
Replies: 28
Views: 6,516
Posted By LM93
Will column #1 and #2 take care of themselves?

Will column #1 and #2 take care of themselves?
Forum: Pontiac - Boost 03-22-2021, 05:55 AM
Replies: 28
Views: 6,516
Posted By LM93
By Pressure Ratio do you mean the Turbine...

By Pressure Ratio do you mean the Turbine Expansion Ratio?
Forum: Pontiac - Boost 03-21-2021, 10:58 PM
Replies: 28
Views: 6,516
Posted By LM93
Is the Turbine Wheel Diameter for the third chart...

Is the Turbine Wheel Diameter for the third chart the same as the turbine wheel outer diameter listed in the product PDF?
Forum: Pontiac - Boost 03-21-2021, 07:25 PM
Replies: 28
Views: 6,516
Posted By LM93
How are these?

How are these?
Forum: Pontiac - Boost 03-20-2021, 06:41 PM
Replies: 28
Views: 6,516
Posted By LM93
Considering building a turbo'd 350, need a hand with BorgWarner Matchbot

I'm just exploring options for a street-driven '79 Firebird with a Pontiac 350 in it. I'm not sure about all the inputs I'm punching in because I'm not familiar with what the differences between N/A...
Showing results 1 to 11 of 11

 
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