DYNO/1999 219whp 184tq @ 10.25psi - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 03-26-2009, 12:27 PM   #1
!!! NOT CONFIRMED !!!
Thread Starter
 
Join Date: Nov 2007
Location: Virginia Beach, Va
Posts: 158
Total Cats: 1
Default DYNO/1999 219whp 184tq @ 10.25psi

Went to the dyno the other day was shooting for 225whp but only made 219whp, It looks like I was still making power up top do you think if the dyno guy went to say 6,700 instead of stopping at 6.300 I could have squeezed out a few more hp's ?

Garrett T-25 .48/.49
410cc injectors
A/F 11.5 @ 75% injector Duty cycle
Emanage Blue
219 whp @10.25 psi
Attached Thumbnails
DYNO/1999 219whp 184tq @ 10.25psi-dyno.jpg  
elderc is offline   Reply With Quote
Old 03-26-2009, 12:30 PM   #2
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,833
Total Cats: 1,786
Default

yes, you would have hit your goal. never rely on the stock tach; it's always at least 500rpm too fast at high rpms.


pretty nice torque curve.
Braineack is offline   Reply With Quote
Old 03-26-2009, 12:35 PM   #3
I EAT CUM
iTrader: (6)
 
Join Date: Sep 2008
Location: Redneck, Texas
Posts: 1,218
Total Cats: -1
Default

Damn, you are at 75% duty with 415's on a t25? Any other fuel mods?
Turbo_4 is offline   Reply With Quote
Old 03-26-2009, 12:38 PM   #4
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,833
Total Cats: 1,786
Default

i was at 80% with 460s at 232rwhp.
Braineack is offline   Reply With Quote
Old 03-26-2009, 12:39 PM   #5
!!! NOT CONFIRMED !!!
Thread Starter
 
Join Date: Nov 2007
Location: Virginia Beach, Va
Posts: 158
Total Cats: 1
Thumbs up

Thanks, thats what I was thinking next time I'll have the dyno guy push a little more RPM's, remember the stock fuel pressure on the NB's is 57-61 psi ( the injectors are 360cc from a 323 gtx but the flow rate is 410 @ 57psi stock fuel pump)
elderc is offline   Reply With Quote
Old 03-26-2009, 12:40 PM   #6
Elite Member
iTrader: (3)
 
Mach929's Avatar
 
Join Date: Oct 2004
Location: lansdale PA
Posts: 2,500
Total Cats: 0
Default

what's the specifics on the rest of your setup.
Mach929 is offline   Reply With Quote
Old 03-26-2009, 12:42 PM   #7
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,833
Total Cats: 1,786
Default

Quote:
Originally Posted by elderc View Post
Thanks, thats what I was thinking next time I'll have the dyno guy push a little more RPM's

just rev until you hit the limiter...that's why it's there.
Braineack is offline   Reply With Quote
Old 03-26-2009, 01:03 PM   #8
!!! NOT CONFIRMED !!!
Thread Starter
 
Join Date: Nov 2007
Location: Virginia Beach, Va
Posts: 158
Total Cats: 1
Default

I'am all about hitting the rev limt, but for some reason the dyno guys don't want to do it?
Other mods : Koyo 37mm Rad, 2-1/2 racing beat midpipe, Borla exhaust, turbosmart MBC, saab turbo downpipe, NGK wideband, EMB, Bilstein HD's, Spec 1 clutch 18x12x3 intercooler,otherwise stock.
elderc is offline   Reply With Quote
Old 03-26-2009, 01:16 PM   #9
Elite Member
iTrader: (5)
 
m2cupcar's Avatar
 
Join Date: Jan 2005
Location: Atlanta
Posts: 7,236
Total Cats: 288
Default

That's a nice looking pull - good curves. It really is a shame he didn't stay in it. It's pretty much mandatory to tell the dyno operator to stay in it until X rpm and do not look at the car's tach, watch the computer screen with the ign pick up.
m2cupcar is offline   Reply With Quote
Old 03-26-2009, 01:33 PM   #10
!!! NOT CONFIRMED !!!
Thread Starter
 
Join Date: Nov 2007
Location: Virginia Beach, Va
Posts: 158
Total Cats: 1
Default

I told him to take to at least at least 6,700 I guess he was looking at my tach instead of his computer screen.
elderc is offline   Reply With Quote
Old 03-26-2009, 01:39 PM   #11
Elite Member
iTrader: (46)
 
Stein's Avatar
 
Join Date: Dec 2007
Location: Nebraska
Posts: 4,812
Total Cats: 138
Default

Quote:
Originally Posted by Turbo_4 View Post
Damn, you are at 75% duty with 415's on a t25? Any other fuel mods?
Man, I'm scared now. Same setup and I'm at 8 psi with stock injectors.

I need me some mo bigga ones.
Stein is offline   Reply With Quote
Old 03-26-2009, 03:13 PM   #12
Elite Member
iTrader: (21)
 
paul's Avatar
 
Join Date: Jun 2006
Location: Point Pleasant, NJ
Posts: 2,957
Total Cats: 2
Default

nice numbers for 10psi
paul is offline   Reply With Quote
Old 03-26-2009, 03:20 PM   #13
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,357
Total Cats: 1,322
Default

Very nice numbers. The 99 heads flow hard up top. It's a shame you didn't rev it to the limiter, though.
Savington is offline   Reply With Quote
Old 03-26-2009, 03:36 PM   #14
!!! NOT CONFIRMED !!!
Thread Starter
 
Join Date: Nov 2007
Location: Virginia Beach, Va
Posts: 158
Total Cats: 1
Default

The 99 head flows better than I thought I was suprised I was still making power up top with a small T-25, I made one pass at 11.50psi and lost 18hp so for that turbo anything beyond 10-10.5psi must be in the chock zone ?
elderc is offline   Reply With Quote
Old 03-26-2009, 03:42 PM   #15
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,833
Total Cats: 1,786
Default

yeah, but what rpm did he decide to lift at?
Braineack is offline   Reply With Quote
Old 03-26-2009, 03:52 PM   #16
!!! NOT CONFIRMED !!!
Thread Starter
 
Join Date: Nov 2007
Location: Virginia Beach, Va
Posts: 158
Total Cats: 1
Default

6,084 RPM is what my data log shows. maybe he lifted to soon ? I might have picked up a few more hps. if he stayed in it longer.
He told me the pass at 11.50 was 10mph faster than 10.25psi, so does that mean at 11.50psi @ 6,084 produces more mph than [email protected] 6,300 ?

Last edited by elderc; 03-26-2009 at 04:08 PM.
elderc is offline   Reply With Quote
Old 03-26-2009, 04:14 PM   #17
Elite Member
iTrader: (21)
 
paul's Avatar
 
Join Date: Jun 2006
Location: Point Pleasant, NJ
Posts: 2,957
Total Cats: 2
Default

haha, it can't mean that. gears are gears. it could only mean you got to a certain point in less time.
paul is offline   Reply With Quote
Old 03-26-2009, 04:20 PM   #18
!!! NOT CONFIRMED !!!
Thread Starter
 
Join Date: Nov 2007
Location: Virginia Beach, Va
Posts: 158
Total Cats: 1
Default

That what I'am talking about....................but I'am no "dyno guy" lol
elderc is offline   Reply With Quote
Old 03-26-2009, 04:25 PM   #19
Elite Member
iTrader: (21)
 
paul's Avatar
 
Join Date: Jun 2006
Location: Point Pleasant, NJ
Posts: 2,957
Total Cats: 2
Default

maybe he meant the 10psi pass topped out 10mph faster than the 11psi pass. but does 216rpm in 4th gear translate to 10mph?


edit: Just checked and that only makes a 3.4 mph difference if you have a 5 speed with 205/50/15s
paul is offline   Reply With Quote
Old 03-26-2009, 04:35 PM   #20
!!! NOT CONFIRMED !!!
Thread Starter
 
Join Date: Nov 2007
Location: Virginia Beach, Va
Posts: 158
Total Cats: 1
Default

All passes were in 3rd gear (5spd) and tires are 205/45/16 if that helps, so bottom line I guess I'll have to go back to the dyno for a do-over lol.
elderc is offline   Reply With Quote
 
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:41 AM.