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Dyno graphs, stage 2. Help me analyze them

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Old Jun 25, 2006 | 04:24 PM
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Dyno graphs, stage 2. Help me analyze them

I have the dyno from when my car was just tuned by EVOMS. At the same time, a stage 1 clutch was installed, evo intake, fabspeed exhaust, and ROW suspension. What do you guys think? I'm seeing 448 rwp and 477 rwt. The front drive train was disconnected for the dyno. The tuner said the car should show more power after a while (it was dynoed immediately after the mods). I regularly see 1.2 bar and occasionally 1.3 bar on my boost gauge . The car seems really fast.
BTW, the dyno says "flywheel hp" but i was told it should say "wheel hp"
 
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Old Jun 25, 2006 | 04:27 PM
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AFR and boost graphs...
 
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Old Jun 25, 2006 | 04:30 PM
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So no before dyno? SAE HP 441 Tq 473...Stock is 415HP...so do the math for your stage 2. That seems disappointing.
 
Old Jun 25, 2006 | 04:32 PM
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Originally Posted by wross996TT
So no before dyno? SAE HP 441 Tq 473...Stock is 415HP...so do the math for your stage 2. That seems disappointing.
Those are whp figures so it calculates to 504 bhp I believe.
 

Last edited by rwm514; Jun 25, 2006 at 05:51 PM.
Old Jun 25, 2006 | 04:34 PM
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It says fly wheel power on the title of the chart. Oh just saw your note (don't think it was there when I posted?). So I get 496HP (multiply by 1.125). Excellent. Have fun.
 

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Old Jun 25, 2006 | 05:03 PM
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Seems like A LOT of boost for K16's and not that much power for all that boost... Somthing strange IMO... As a comparison, I dynoed 468RWHP at .9BAR MAX...
Evan
 
Old Jun 25, 2006 | 05:17 PM
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Originally Posted by AMG ETR
Seems like A LOT of boost for K16's and not that much power for all that boost... Somthing strange IMO... As a comparison, I dynoed 468RWHP at .9BAR MAX...
Evan
Yea exactly! One thing i noticed about my car is, with straight pipes it would boost the 1.1 then steady 1 bar flat, i took them off, with my exhaust i can get 1.0 but steady .9, and .9 just pulls HARD. It just seems much more accuarate and better for the car to pull a .9-1.0 with useable great power. 1.2-1.3 is overworking those turbo's and blowing hot air.

Nice run though , congrats!
 
Old Jun 25, 2006 | 05:50 PM
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If you look at the top of the curves it shows 477 ft/lbs and 448 hp. So x 1.125 is 504 bhp and 537 ft/lbs. Does that sound right?
 
Old Jun 25, 2006 | 06:08 PM
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Originally Posted by rwm514
I have the dyno from when my car was just tuned by EVOMS. At the same time, a stage 1 clutch was installed, evo intake, fabspeed exhaust, and ROW suspension. What do you guys think? I'm seeing 448 rwp and 477 rwt. The front drive train was disconnected for the dyno. The tuner said the car should show more power after a while (it was dynoed immediately after the mods). I regularly see 1.2 bar and occasionally 1.3 bar on my boost gauge . The car seems really fast.
BTW, the dyno says "flywheel hp" but i was told it should say "wheel hp"
Either your stock Boost/Bar guage is mis-reading or something is wrong. Its impossible for a Stage 2 with "Stock" K16 Turbos to pull 1.2 Bar and even 1.3 at times. Stocl K16's that have not bee modified can not push that much boost.

As fas as your HP, it seems about right give or take a few HP. Figure 500 HP for a Stage II and 550HP or so for a Stage III and so on....
 
Old Jun 25, 2006 | 06:19 PM
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Originally Posted by AzExoticLover
Either your stock Boost/Bar guage is mis-reading or something is wrong. Its impossible for a Stage 2 with "Stock" K16 Turbos to pull 1.2 Bar and even 1.3 at times. Stocl K16's that have not bee modified can not push that much boost.

As fas as your HP, it seems about right give or take a few HP. Figure 500 HP for a Stage II and 550HP or so for a Stage III and so on....
I was wondering if it was reading hi but looking at the boost graph, it shows 19.0 psi which I think translates to 1.3 bar. Isnt 14.5 psi = 1.0 bar?
 
Old Jun 25, 2006 | 06:22 PM
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Originally Posted by rwm514
I was wondering if it was reading hi but looking at the boost graph, it shows 19.0 psi which I think translates to 1.3 bar. Isnt 14.5 psi = 1.0 bar?
I think 1 bar = 15.7 psi
 
Old Jun 25, 2006 | 06:50 PM
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Originally Posted by AzExoticLover
As fas as your HP, it seems about right give or take a few HP. Figure 500 HP for a Stage II and 550HP or so for a Stage III and so on....
It really depends on the car. My car trapped 126 mph at the Stage 2 level (with stock K16's, AWD and full weight car)...which means I was very close to 600 hp at the flywheel.
 

Last edited by Divexxtreme; Jun 25, 2006 at 06:54 PM.
Old Jun 25, 2006 | 06:52 PM
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Originally Posted by USCTrojanMan29
I think 1 bar = 15.7 psi
14.7 psi. One bar is almost exactly 1 atm.
 
Old Jun 25, 2006 | 06:52 PM
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1 Bar = 14.7 Psi

19 Psi = ~1.3 Bar

Stock K16s can not mainatin 1.3 all the way to redline from what I have seen.

Here is my stage 3 K24 Graph in RWD: http://members.dslextreme.com/users/...11%20Turbo.jpg
 

Last edited by Turbo Fanatic; Jun 25, 2006 at 07:02 PM.
Old Jun 25, 2006 | 07:00 PM
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Originally Posted by Divexxtreme
It really depends on the car. My car trapped 126 mph at the Stage 2 level (with stock K16's, AWD and full weight car)...which means I was very close to 600 hp at the flywheel.
I trapped 121mph my very first day ever drag racing, bumping off the rev limiter, psm on and kicking in all thru 1st gear. Down at the scottsdale exotic car club day at the drags. Im a crappy drag racer
Im not sure if it would have been better with a good launch though.
 


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