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Brettus Turbo install thread

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Old 12-18-2008, 03:11 PM
  #326  
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Originally Posted by Brettus
hmmm - thats is about where i was before and you said i was way retarded ....
Did you say that outloud before posting? lol
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Old 12-18-2008, 03:12 PM
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Originally Posted by Brettus
hmmm - thats is about where i was before and you said i was way retarded ....
He might have been trying to insult you instead of giving you tuning tips... he does that from time to time
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Old 12-18-2008, 03:33 PM
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Originally Posted by Red Devil
Do you know what your IATs were at that point?
No - i'm just going off the flow map at this stage . IAT guage is next on my list ...
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Old 12-18-2008, 03:34 PM
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heh - i knew that "retarded" remark would get a response
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Old 12-18-2008, 03:44 PM
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You were static above 6500 or so. The high EGTs happen above 6800, so you should be advancing instead of remaining static at 11° or so.

You will end up around 15° at that point, but until you are satisfied with your AFRs, keep the timing safe.
Last edited by MazdaManiac; 12-18-2008 at 04:03 PM.
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Old 12-18-2008, 09:25 PM
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Water meth system?
OD
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Old 12-18-2008, 09:43 PM
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All good - this is what afrs and maf look like now - wot run 2nd through 3rd
EGTs below 940 at end of run

Last edited by Brettus; 12-28-2008 at 10:39 PM.
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Old 12-18-2008, 10:27 PM
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Originally Posted by olddragger
Water meth system?
OD
I think would need to do that if i was pushing more boost higher in rev range - must get IAT guage to see what is going on
Last edited by Brettus; 12-20-2008 at 03:00 PM.
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Old 12-28-2008, 10:45 PM
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1000 kms later and STILL having hot starting issue . It will start after several seconds but used to be way better .

I'm wondering if the cold rx7 plugs are the issue - Anyone else experienced this with those plugs ?
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Old 12-28-2008, 10:46 PM
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i use the cold rx7 plugs even when NA. car starts up instantly.
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Old 12-28-2008, 10:47 PM
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Originally Posted by Brettus
1000 kms later and STILL having hot starting issue . It will start after several seconds but used to be way better .

I'm wondering if the cold rx7 plugs are the issue - Anyone else experienced this with those plugs ?
nope.
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Old 12-28-2008, 10:49 PM
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Usually a hot-start issue is an over-rich fuel scenario.

(Provided there isn't an actual issue like a miswired injector, vacuum leak or the like.)
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Old 12-28-2008, 10:56 PM
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bugger- out goes that theory

I'm thinking over rich is most likely from those suggestions but how ?
Vac leak would show up in other areas like idle etc and i never took the plugs off the injectors except to change the p2s .
Last edited by Brettus; 12-28-2008 at 11:00 PM.
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Old 12-28-2008, 11:04 PM
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Have you verified your coils are good?

Hot start problems were my bane with the OEM coils - swapped to BHR and so far so good.
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Old 12-28-2008, 11:22 PM
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/\ - funny you should mention that . Was on the Mazsport coils before and starting was no issue
However these OEM coils seem to be handling boost no problems ....
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Old 12-29-2008, 12:36 AM
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Dwell settings?
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Old 12-29-2008, 12:38 AM
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/\ stock - never changed
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Old 12-29-2008, 12:41 AM
  #343  
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Can you get a set of coils off someone's car for a head to head?

Or do the resistance testing - I forget how though I think it is in the service manual.
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Old 12-29-2008, 12:43 AM
  #344  
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i can try the Mazsports again ----- cough hack
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Old 12-29-2008, 12:46 AM
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At idle - can't hurt right?
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Old 12-31-2008, 12:32 AM
  #346  
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OK - found the hot start problem.
turned out to be related to the tune I put into the Powermod - I did not realise it was going to affect startup mixture - but it did .

Did some exciting upgrades with Hymee protuner over the last couple of days . Way more to this story but i'm knackered now and it's new years eve so ...... another day .

http://video.google.com/videoplay?do...32860314480345
Last edited by Brettus; 02-27-2009 at 08:17 PM.
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Old 03-27-2009, 05:10 PM
  #347  
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looks like i found a few more ponies


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Old 03-27-2009, 05:26 PM
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It could also be cooler/wetter or the BARO is slightly higher.
I'll see 20 - 30 g/sec variation from day to day.
At full boost, my MAF could read a maximum anywhere from 390 - 420 g/sec.
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Old 03-27-2009, 05:49 PM
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ah - but this was after my extra special secret mod that i wont divulge to anyone .
Was seeing 310g/s under same conditions previously
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Old 03-27-2009, 05:53 PM
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Well, that is excellent, then!
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