Dyno day this week!
- Thread starter MSP Kirk
- Start date
shane02pro5
25ish_psi
- :
- New Caney TX
Say what?? Out of it's efficiency at 16psi... as in causing detonation or not making more power by upping boost?? Any idea of your egt's??
at 90%VE, 2.1bar, 2.1L at 6500 his motor requires 32lb/m airflow... 2860RS even in the larger AR operates at 34-35lb/m max (at 60%) for that PSI. upping the boost just makes it worse from there.
oh well, GT3076R swap time! (EDIT: i lied, 76R only comes on t3 inlet. 71R is good for ~30psi though)
Last edited:
So I picked up my car, some bad news but mainly good news! First the bad, it actually made 280.8 hp not 288, I heard him wrong over the phone. The good news is that it is a dyno dynamics dyno, which after some reading I found out that they dyno about 15-20% less than a Dynojet which puts me right around 330 whp on a dynoject 
. Can't wait for summer so I can see what she's like!
EDIT: Just a comparison, on the bulletin board at the shop there was dyno from a full bolt on stage 2 srt-4 neon and it made 248 whp
. Can't wait for summer so I can see what she's like!EDIT: Just a comparison, on the bulletin board at the shop there was dyno from a full bolt on stage 2 srt-4 neon and it made 248 whp
Last edited:
EEYOrE7763
Member
- :
- 2003 Mazda Protege LX
That turbo you're running. Is it a GT2860 or a GT2871?
thecrash91
Member
- :
- 2003.5 Mazdaspeed Protege
so wait the gt28rs isnt good to 350 horsepower as the ATP website says? or is it just the conversion from crank to wheel im missing?
shane02pro5
25ish_psi
- :
- New Caney TX
Yes hp not whp
thecrash91
Member
- :
- 2003.5 Mazdaspeed Protege
boooo, i was hopin it was WHP, oh well, itll make my msp a sock evo/sti spanker with more supporting mods in due time =]. p.s. nice build, i hope to hit these numbers real soon with the gt28 soon.
Maxx Mazda
Contributor
- :
- Stock P5
Kirk, had a feeling that turbo would hold you up a bit. 
you'll have plenty of headroom on those injectors. Run the stock FPR without the solenoid, just run the vac line right to it. Set the HALTECH up for sequential, and if you start running out of headroom, try changing the injector phase timing first without upping boost or injector time and see where it gets you before you change anything else. The stock FPR is rising rate, so your fuel curve will be parabolic, not linear.
you'll have plenty of headroom on those injectors. Run the stock FPR without the solenoid, just run the vac line right to it. Set the HALTECH up for sequential, and if you start running out of headroom, try changing the injector phase timing first without upping boost or injector time and see where it gets you before you change anything else. The stock FPR is rising rate, so your fuel curve will be parabolic, not linear.
Maxx Mazda
Contributor
- :
- Stock P5
Ps where are you having it tuned? That guy in red deer?
Ok I'll have to look into that, the car is parked at my parents for now but in the spring I'll change it.Kirk, had a feeling that turbo would hold you up a bit.
Ya it's called Vex Performance in Red Deer, Ryan is the guys name, he's one of the only certified Haltech tuners in Alberta as far as I know.
I'm sorry I forgot to ask, I'm getting some street tuning done from him in the spring, I'll see if I can find out then! And ya it's pretty nuts thanks!
