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Old 05-14-2016, 09:15 PM   #1
Simi
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Default So I dyno'd my car.

Went on a dyno run





Engine
B230FT
LH2.4 TALO Chipped
13mm rods
440cc Injectors
Stock Fuel Pumps
Ported 90+ Manifold
TD04HL 19t at 15PSI
HKS EVC 4
NPR Intercooler
Custom PCV System
RSI Stage II Cam
Cam Advanced 4 degrees
E Fan
012AMM
3"DP to 2.5 Catback, one resonator

Transmission
World Class T5
Flat Flywheel
6 Puck Clutchnet Disc
240 Turbo Pressure plate
Custom Driveshaft


Problem is that it runs out of steam at about 5k rpm when it should go 6k+, is that cam timing or?

Is there another way I can get some more horses out of it without getting more torques, I am at the max torque my clutch and t5 can handle supposedly?
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Old 05-14-2016, 09:51 PM   #2
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The turbo is a bottleneck. The exhaust side is tiny.
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Old 05-14-2016, 10:23 PM   #3
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There should be a noticeable difference in top end performance with the cam timed straight up. Or not since the hotside of the turbo could be the restriction.

Regardless, nice numbers man.
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Old 05-14-2016, 11:09 PM   #4
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At only 15psi those are really good numbers. For sure the 90+ and turbine housing are a restriction but I cannot comment on why your setup drops power so badly. My only dyno was with a much larger turbo and header and my setup with the enem v15 cam was still making power at 6400 when they lifted.

What were afrs the entire run? I would try running the cam straight up and see how it does.
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Old 05-14-2016, 11:10 PM   #5
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Old 05-14-2016, 11:54 PM   #6
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Add bigger injectors, tune for E85 and add more timing at upper RPM.

Leave timing under 3500rpm the same, since that is your torque peak.

Advance cam timing suppose to give you a little more torque while retard suppose to give you a little more hp.
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Old 05-14-2016, 11:58 PM   #7
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Originally Posted by thelostartof View Post
At only 15psi those are really good numbers. For sure the 90+ and turbine housing are a restriction but I cannot comment on why your setup drops power so badly. My only dyno was with a much larger turbo and header and my setup with the enem v15 cam was still making power at 6400 when they lifted.

What were afrs the entire run? I would try running the cam straight up and see how it does.
No idea on the AFR, they did not put the sensor in the tail pipe and I have no AFR gauge.

Forgot to mention that I have a flat flange turbine housing with a 3" v band welded on.
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Old 05-15-2016, 12:16 AM   #8
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I agree with Athlon. Exhaust side is too small. I was able to wind my td04hl to 6k but that required very careful porting on the turbine housing.

Few questions:

1. What is your boost between 2500-6000?
2. What actuator are you running?
3. What's your cam set at?
4. Is it a 6 or 7cm^2 turbine housing?
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Old 05-15-2016, 12:38 AM   #9
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Originally Posted by Harlard View Post
I agree with Athlon. Exhaust side is too small. I was able to wind my td04hl to 6k but that required very careful porting on the turbine housing.

Few questions:

1. What is your boost between 2500-6000?
2. What actuator are you running?
3. What's your cam set at?
4. Is it a 6 or 7cm^2 turbine housing?
1. 15 at the moment, drops off to 14 or so in the high rev range
2. Kinugawa adjustable with a 11/12 psi spring.
3. Cam is 4 degrees advanced
4. 6cm turbine housing, flat flange.
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Old 05-15-2016, 12:43 AM   #10
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Good deal on the actuator.

As for the cam, you will see much better power with it straight up, maybe backed up a degree or two from the top.

As for the turbine, smoothing the flowpath all the way into thw taper zone and around the inlet to the wastegate puck, plus opening it up so it's more like a 7cm housig goes a very long way for your powerband.
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Old 05-15-2016, 01:05 AM   #11
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your power is dying from 3500 up, THAT ain't the turbo
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Old 05-15-2016, 01:41 AM   #12
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^True.

Even properly breathing on a bone stock car with just a T3/.63 cossie housing (or similar) with a much opened up 90+ and a bone stock bottle neck head with a T cam it should pull to 5500-5700

Crazy cam advance or spark advance curve?
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Old 05-15-2016, 12:36 PM   #13
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Originally Posted by linuxman51 View Post
your power is dying from 3500 up, THAT ain't the turbo
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Old 05-15-2016, 12:49 PM   #14
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Quote:
Originally Posted by Simi View Post
Went on a dyno run





Engine
B230FT
LH2.4 TALO Chipped
13mm rods
440cc Injectors
Stock Fuel Pumps
Ported 90+ Manifold
TD04HL 19t at 15PSI
HKS EVC 4
NPR Intercooler
Custom PCV System
RSI Stage II Cam
Cam Advanced 4 degrees
E Fan
012AMM
3"DP to 2.5 Catback, one resonator

Transmission
World Class T5
Flat Flywheel
6 Puck Clutchnet Disc
240 Turbo Pressure plate
Custom Driveshaft


Problem is that it runs out of steam at about 5k rpm when it should go 6k+, is that cam timing or?

Is there another way I can get some more horses out of it without getting more torques, I am at the max torque my clutch and t5 can handle supposedly?

Make sure it's not pulling out timing.

Double check base timing/cam timing; try another run with the cam zero'd out. There should be more in it, and it shouldn't stop pulling at 3500. Good luck!
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Old 05-15-2016, 04:41 PM   #15
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I set the cam timing to 0 and reset the ecu. I am going to give it a shot now.
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Old 05-17-2016, 02:57 AM   #16
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Are the numbers power at the wheels or crankshaft?
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Old 05-17-2016, 11:44 PM   #17
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those are at the wheels, supposedly the dyno reads about 10 low on each number as well.
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Old 05-18-2016, 03:09 AM   #18
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Quote:
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those are at the wheels, supposedly the dyno reads about 10 low on each number as well.
Impressive numbers for this less boost!
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Old 05-18-2016, 12:18 PM   #19
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Quote:
Originally Posted by Simi View Post
I set the cam timing to 0 and reset the ecu. I am going to give it a shot now.
dont it need time to learn?
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Old 05-18-2016, 06:08 PM   #20
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dont it need time to learn?
Yes...

It will be another month or two before I can dyno it.
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Old 05-18-2016, 06:25 PM   #21
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Quote:
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Yes...

It will be another month or two before I can dyno it.
Looking forward to the results. Hopefully you'll find that lost power. There's certainly more in her.
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Old 05-21-2016, 05:25 PM   #22
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your injectors are maxed out for that hp level

try a injector calculator
http://fuelinjectorclinic.com/flow-calculator


your hp at the wheels + injector size means you are getting up to 100% DC and they cannot spray more.

other than that not too shabby must be nice to drive.
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Old 05-21-2016, 05:44 PM   #23
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Looking at the torque curve it's a pretty good indication you are running into engine pumping losses. The straight power portion of the power curve gives this away as the gas mass flow rate limit of the turbine housing has been reached.
Don't be a gronk and pump in more ignition timing, find a larger turbine housing.
I doubt that turbo would flow enough to pass 280hp

Last edited by AndrewEG; 05-21-2016 at 05:50 PM..
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Old 05-21-2016, 08:45 PM   #24
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Quote:
Originally Posted by burstcurse View Post
your injectors are maxed out for that hp level

try a injector calculator
http://fuelinjectorclinic.com/flow-calculator


your hp at the wheels + injector size means you are getting up to 100% DC and they cannot spray more.

other than that not too shabby must be nice to drive.
No, they aren't.
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Old 05-22-2016, 02:56 PM   #25
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Another easy thing to try (if your boost controller is capable) is to ramp the boost in a bit more in higher rpms to keep the torque graph flat and hp climbing with the RPM.
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