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  #521  
Old 09-03-2015, 04:06 PM
HYDE16 HYDE16 is offline
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Default Re: Injecting prior to turbo comp' impellers

Ok I'll take a look without the pre-turbo jet then with.
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  #522  
Old 09-03-2015, 05:37 PM
Richard L Richard L is offline
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Default Re: Injecting prior to turbo comp' impellers

Is the weather still cold in New Jersey?
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  #523  
Old 09-03-2015, 06:15 PM
HYDE16 HYDE16 is offline
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Default Re: Injecting prior to turbo comp' impellers

Not today, a beautiful sunny 45 degree day. This thread got me pumped up to finish the install, just mounted the tank and pump, connected the level sensor connector, fluid lines and pump connector. Moved the jumper to DHB and turned the gauge on, the entire system is alive again! Time to go out for a ride a little later today!
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  #524  
Old 29-03-2015, 01:14 PM
jmlegacy jmlegacy is offline
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Default Re: Injecting prior to turbo comp' impellers



Found this dyno at this location

A 315 cc nozzle pre turbo and a 130 cc nozzle post ic. Nothing else was done.

His spool was later, but his torque extended more. Is this the SHIFT of the compressor map that is talked about?

Last edited by jmlegacy; 29-03-2015 at 01:25 PM.
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  #525  
Old 29-03-2015, 06:48 PM
Flr Power Flr Power is offline
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Default Re: Injecting prior to turbo comp' impellers

If anything, the nozzles position should be reversed. Also to make it a fair comparison, we would need more data like boost pressure to even make a call...
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  #526  
Old 30-03-2015, 12:22 AM
HYDE16 HYDE16 is offline
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Default Re: Injecting prior to turbo comp' impellers

Man I can't wait to get on the dyno and even run some data logs around my .3mm pre-turbo setup. Just got a new clutch installed, need to break it in before I can really run 3rd gear full throttle logs. 450 miles to go.
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  #527  
Old 31-03-2015, 09:55 AM
parmas parmas is offline
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Default Re: Injecting prior to turbo comp' impellers

Quote:
Originally Posted by Flr Power View Post
If anything, the nozzles position should be reversed. Also to make it a fair comparison, we would need more data like boost pressure to even make a call...
On his website there is the Pre-Turbo-WI-Dyno-Test.zip attachment. In it there are .txt files that contain all data.

I sorted out the data into an excel file and removed the insignificant data.

Between 4250RPM and 5250RPM Post turbo map had more boost compared to Pre-Turbo and continues like that till redline but after 5250RPM PRE-Turbo makes more power and torque

Could be turbo efficiency ?
Attached Files
File Type: zip Water Injection Dyno Post_PRE_RX7CLUB.zip (25.1 KB, 4 views)
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  #528  
Old 03-04-2015, 09:31 AM
rotrex rotrex is offline
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Default Re: Injecting prior to turbo comp' impellers

so, just activate injection past 5200 rpm...
I found .3mm pr compressor (Rotrex) having little effect.
.7 mm worked well.
I use 4x 0.3mm direct port now.

In genera found the more water methanol I injected the more power I was able to extract.
Sweet spot seem to be around 300 ml/min for my engine flowing about 1.5l of fuel per minute. injecting more adds not enough to justify the extra consumption.
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  #529  
Old 03-04-2015, 02:04 PM
HYDE16 HYDE16 is offline
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Default Re: Injecting prior to turbo comp' impellers

I'll be testing a .3mm jet post MAF (3 feed from turbo compressor), boost activated at 5psi.
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  #530  
Old 14-04-2015, 08:42 PM
jmlegacy jmlegacy is offline
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Default Re: Injecting prior to turbo comp' impellers

Quote:
Originally Posted by Flr Power View Post
If anything, the nozzles position should be reversed. Also to make it a fair comparison, we would need more data like boost pressure to even make a call...

That's my thinking too. I'm actually thinking of doing a two stage with a ~50cc nozzle pre turbo @4psi and second stage @18psi (190cc).

Maybe 50cc not enough? I just need it to help me launch my autobox better.
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