My Dyno Results (Lets Discuss) **Pic and Vids**
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My Dyno Results (Lets Discuss) **Pic and Vids**
Dynoed the old girl today. Here are my results. Tell me what you think and why you think power drops so much after 5500RPMs.
And 2 different vids
Youtube attempt
http://www.youtube.com/watch?v=wR25GQUeP5A
Photobucket attempt
And 2 different vids
Youtube attempt
http://www.youtube.com/watch?v=wR25GQUeP5A
Photobucket attempt
1994 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
The answer is: you are still running the EJ22T heads.
My dyno plot looks similar in that the power drops off at 5500 rpms.
My dyno plot looks similar in that the power drops off at 5500 rpms.
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01- RS- Swapped-07 STI
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93 SS- "the original Robtune" (now in new hands)
No you can't have one
05 GD-STI
01- RS- Swapped-07 STI
00- GF
93 SS- "the original Robtune" (now in new hands)
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
They suck that bad huh? Good thing I got some 20g heads and intake sitting
1994 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
the boost looks like its fluctuating alot past 5.5k also, at the same time the power drops off. Manual boost controller installed?
94 Supra Turbo 6 speed. build in progress
98 Lexus GS300, single turbo 2JZGTE swap. daily driver
93 Impreza wagon, home brewed n/a-t ken block themed winter drift missle
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94 Alpine Sport Wagon... STi conversion, rotated turbo etc
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Yup. Turbosmart mbc. Do they tend to do that?
1994 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
I think it's also important to mention your "rattling" wastegate door
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Yes that too. Although I don't hear it under throttle, only when I'm coasting, and only sometimes.
The weird part Rob, is ever since I upped my boost to 6 cliks, I've never heard it. But yesterday, I turned it down all the way on my way to the dyno, and sure enough, it came back. So I turned it up 4 click again, and never heard it again.
The weird part Rob, is ever since I upped my boost to 6 cliks, I've never heard it. But yesterday, I turned it down all the way on my way to the dyno, and sure enough, it came back. So I turned it up 4 click again, and never heard it again.
1994 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Yeah, it looks like you're boost is fluctuating quite a bit. But as mentioned....the heads are not going to help either.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Mod list? power/fuel mods?
curious so i can kinda compare to my car.
curious so i can kinda compare to my car.
1992 legacy SS 5mt, Winestone Metallic.
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
ive got a pic compairing the valves on the 22T heads to the set of 25D heads i used, its like compairing a dime to a quarter, litterally.
94 Supra Turbo 6 speed. build in progress
98 Lexus GS300, single turbo 2JZGTE swap. daily driver
93 Impreza wagon, home brewed n/a-t ken block themed winter drift missle
*sold*
94 Alpine Sport Wagon... STi conversion, rotated turbo etc
98 Lexus GS300, single turbo 2JZGTE swap. daily driver
93 Impreza wagon, home brewed n/a-t ken block themed winter drift missle
*sold*
94 Alpine Sport Wagon... STi conversion, rotated turbo etc
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Mods are 3" turbo back MBC k&n cone Perrin crank pulley td04 06 tmic sti bpv walbro 255
1994 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Yours? And what power did you put down?LookAsubie wrote:Mod list? power/fuel mods?
curious so i can kinda compare to my car.
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1991 Legacy Sport Sedan.
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Your air/fuel bumps down around that point too. The scale on the plot is rather odd.
The small ports in the heads should not have that sharp of change in direction of the power. Power will drop off, but not go from a rising curve instantly to a falling curve. Something else is going on.
The small ports in the heads should not have that sharp of change in direction of the power. Power will drop off, but not go from a rising curve instantly to a falling curve. Something else is going on.
→Dan
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Enough to make one wonder what the MAF reading is at that point.93forestpearl wrote:Your air/fuel bumps down around that point too. The scale on the plot is rather odd.
The small ports in the heads should not have that sharp of change in direction of the power. Power will drop off, but not go from a rising curve instantly to a falling curve. Something else is going on.
93 legacy wagon L, 22T swapped (TW imitator) now with five forward speeds. (Gone, but never forgotten)
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
No, they used a butt-plug probe and he has a cat. Essentially you can ignore the AFR graph.
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Hey Rob I forgot to ask you in the email, what does the cat do for the readings?
1994 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
rob wrote:No, they used a butt-plug probe and he has a cat. Essentially you can ignore the AFR graph.
Gotcha. That does change everything indeed.
→Dan
piddster34 at h0tma1l d0t c0m
piddster34 at h0tma1l d0t c0m
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
How?!
1994 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
I havent had my car dyno'd yet. But my mods are, 3" catless turboback, perrin MBC set at 11-12 ish PSI, stock vf11, 02 wrx intercooler, perrin lightweight crank pulley, short ram intake, wrx BPV and a walbro 255.Florin1 wrote:Yours? And what power did you put down?LookAsubie wrote:Mod list? power/fuel mods?
curious so i can kinda compare to my car.
so i should be pretty close to the same numbers as you for the most part?
in the future i will be going either td-05 16g or vf39, 440's, jecs maf, and probably some better heads like people have mentioned. Im curious as to about how much power that setup will make. not sure what ill do about engine manegement yet but i have plenty of time to figure that out.
Last edited by LookAsubie on Wed May 19, 2010 6:54 am, edited 1 time in total.
1992 legacy SS 5mt, Winestone Metallic.
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
The measured air/fuel is not the true reading coming from your engine, since the catalyst is burning off some of that extra fuel and associated air. Depending on the catalyst used, the air/fuel reading could be off by one point or more.
→Dan
piddster34 at h0tma1l d0t c0m
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
ahh ok. thanks for clearing that up.
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1991 Legacy Sport Sedan.
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Yes.... BUT!!!!!!!!!
The AFR may be off a point or two.... BUT IT STILL MATTERS!!!!!
C'mon... Just look at the graph. At 5500 rpm, power takes a crap, AND AFR dumps rich, and boost levels goes even worse....
It is all connected. I suspect a shitty turbo/wastegate/MBC combined with a MAXXED MAF signal.
The AFR may be off a point or two.... BUT IT STILL MATTERS!!!!!
C'mon... Just look at the graph. At 5500 rpm, power takes a crap, AND AFR dumps rich, and boost levels goes even worse....
It is all connected. I suspect a shitty turbo/wastegate/MBC combined with a MAXXED MAF signal.
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1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
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1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
1992 wagon, wifes daily, high compression
1992 Touring wagon, should I keep it?
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Re: My Dyno Results (Lets Discuss) **Pic and Vids**
Yes Doug, it is connected. The posted numbers don't mean literal results, but trends still do have value. That sharp change says something is going on.
→Dan
piddster34 at h0tma1l d0t c0m
piddster34 at h0tma1l d0t c0m
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
oh well, i'm not too worried. She's about to go under the knife. RobTune ECU, sti 520cc, vf22 externally WG, and hopefully a front mount. The boost controller will stay, unless you guys think there's something wrong with it.
1994 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
1991 Legacy Sport Sedan.
Re: My Dyno Results (Lets Discuss) **Pic and Vids**
i thought with rob tune you can use the stock bcs?
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1994 Subaru Legacy SS R.I.P :(
2004 Nissan Titan LE 4X4
2007 Subaru Legacy GT :)