Brettus Turbo install thread
11-26-2008, 01:38 AM
#176
'Cause, that is what you are gonna get, give or take a few hundred RPM.
Also found I had to add fuel after opening the aux valve - implying a few extra ponies are being made .
But It does not drive as well - idle is sporadic and the flat spot at 4k is worse than before .
So I'll leave them operational until Hymee can figure out how to open them earlier
But It does not drive as well - idle is sporadic and the flat spot at 4k is worse than before .
So I'll leave them operational until Hymee can figure out how to open them earlier
11-26-2008, 02:16 AM
#177
BTW it can hold 10psi to 6500 dropping to 8psi by 7300 which is about where i'll set my shift beeper .
Maybe a supercharger would have been better
might be common knowledge but not all of us have read the entire forum ....
Last edited by Brettus; 11-26-2008 at 02:28 AM.
11-27-2008, 12:32 PM
#179
After a major day of dicking around trying to get the Powermod boost controller to work I finally got it sorted (after getting some help from the guy who designed the Powermod) .
And .....
it does exactly what I wanted it to .
7-8 psi up to 5000 - 10psi from 5000 to 7500 !!!!
That is NOT a misprint 10psi at 7500 and 350 g/s MAF - HOLY S**T !!!!
The car is way more drivable now as it does not want to break loose in 2nd all the time but still has all the power in the range I wanted it .
I backed off the boost at 6500 onwards because of worries about IATs and a hesitation at 6500 due to aux. ports opening .
With that sorted I think it might be time to go back to the dyno and see if I can break 300 hp .
.
And .....
it does exactly what I wanted it to .
7-8 psi up to 5000 - 10psi from 5000 to 7500 !!!!
That is NOT a misprint 10psi at 7500 and 350 g/s MAF - HOLY S**T !!!!
The car is way more drivable now as it does not want to break loose in 2nd all the time but still has all the power in the range I wanted it .
I backed off the boost at 6500 onwards because of worries about IATs and a hesitation at 6500 due to aux. ports opening .
With that sorted I think it might be time to go back to the dyno and see if I can break 300 hp .
.
Last edited by Brettus; 11-27-2008 at 12:35 PM.
front or rear rotor?
11-30-2008, 12:52 AM
#194
Yep .
Had a misfire at about 7000 rpm - and tried to tune and race at the same time . Not a good idea
I think there are a few possibilities - I know it has to do with my upping the boost at 6500-7000 to about 8psi . I had tested it the night before and it was all good but once I got onto the track it reared it's ugly head . The car was running perfectly at 7psi but I just had to try fix it at the track didn't I .
My theories
Lean spike caused by I dont know what - had scanalyser running and could see it .
Air too hot
Mazsport coils not hacking the pace at that psi
Dont really know but What I do know is that it can be set up to run great so long as I dont raise the boost above 7psi in that range
Had a misfire at about 7000 rpm - and tried to tune and race at the same time . Not a good idea
I think there are a few possibilities - I know it has to do with my upping the boost at 6500-7000 to about 8psi . I had tested it the night before and it was all good but once I got onto the track it reared it's ugly head . The car was running perfectly at 7psi but I just had to try fix it at the track didn't I .
My theories
Lean spike caused by I dont know what - had scanalyser running and could see it .
Air too hot
Mazsport coils not hacking the pace at that psi
Dont really know but What I do know is that it can be set up to run great so long as I dont raise the boost above 7psi in that range
11-30-2008, 01:02 AM
#196
well - didn't make any changes to dwell but yeah - I still dont know for sure what the story is there
the run that killed it was the last session - I opened up the aux ports for that run so it was not that causing the lean spike ....
the run that killed it was the last session - I opened up the aux ports for that run so it was not that causing the lean spike ....
Last edited by Brettus; 11-30-2008 at 01:05 AM.
11-30-2008, 01:25 AM
#198
sorry to hear of the dead seals 
I'm contemplating my first rebuild, but hopefully it's premature and not needed in my case.
how does the motor idle and rev with bad seals?
I'm contemplating my first rebuild, but hopefully it's premature and not needed in my case.
how does the motor idle and rev with bad seals?
11-30-2008, 01:28 AM
#199
The first few sessions I was data logging and the lean spike from the Aux ports was causing a spike and a misfire - bad in 2nd gear but ok in the other gears . 2nd was running way leaner (but still around 12) than the higher gears so I'm sure that was why .
The last session I opened up the aux ports to get rid of the spike but found another spike a little higher in the rev range - that is what killed it i think because it wouldn't start after that session . Drove it home and it all seemed good - until i tried to start it again .....
It will actually run if i push start it and it still hauls *** - just cant restart it if i stop
The last session I opened up the aux ports to get rid of the spike but found another spike a little higher in the rev range - that is what killed it i think because it wouldn't start after that session . Drove it home and it all seemed good - until i tried to start it again .....
It will actually run if i push start it and it still hauls *** - just cant restart it if i stop