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Old 08-26-2002, 12:18 PM   #1
Ryan23
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Default My VF34 Dyno Results are in!

Well, after a weekend in MD, the guys @ TurboXS got my car straightened out. First off, many thanks to Phil and Nathan. They are great guys and kept me in the loop on everything. Their approach was very methodical and I was asked for input on everything. The shop was top notch and I am very pleased to say the least. The Utec worked flawlessly and gave me what I was looking for......Consistency.
Ok, on to the run. I had a conservative tune put on her for now, just looking to see what 93 octane Exxon gas would do. The dyno sheet below indicates that. Timing was conservative and she is running a healthy 10:5~11:1 A/F. There is no knock as evidenced through a headset attached to a stand alone knock monitor. Very precise and it left me with a good feeling. There is plenty of room to grow here with my map. Keep in mind, this run was also done through a catalytic converter. Mods are:

TurboXS UTEC
VF34
MRT FMIC w/unifilter
STI Injectors
Walbro Fuel pump
Blitz SBC-ID EBC (For the moment) @ 20.5 PSI
TurboXS Turboback
Vishnu Uppipe
Vishnu Pulley
EGT/AF/Oil Pressure/Boost gauges

The car is running great and the power is very linear. None of the peakiness I was experiencing before tuning with the S-AFC. Stock Driveability is very much preserved. I won't comment too much on the Utec other than to say you will be very impressed once it is formally announced. It is a DIY tweaker's dream. Very easy to use and the data logging function is fast. Incidentally, my Blitz was reading 1 PSI off and the Autometer Electric Boost gauge was consistently within 1/2 pound of true boost. Not bad for an Autometer. My Greddy A/F was reading 2 A/F points richer than it should have been . Not good if you're tuning on the street/strip. It can be adjusted, I'm going to work with it or invest in a decent wideband if all else fails. I also did some beta running of my propane injection kit. Initial results weren't spectacular (+15HP/+12LBS/FT), but it's work in progress. I will have some more dyno pulls with that once I get a few more details worked out. I plan on releasing a WRX specific kit when everything gets sorted and I have some solid #'s to back it. Once again, thanks to TurboXS for the great tune!

Ryan
Utec'N It
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Old 08-26-2002, 01:01 PM   #2
Tronner
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Ryan,

Great numbers!

I'm just curious since I have the SBC-id as well, when you say it was off by 1 psi was it reading 1 psi low or high? I would assume low, since mine reads lower than my VDO gauge. Also, it says you have the SBC-id "for the moment". Do you plan on getting rid of it? If so, why?

Thanks
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Old 08-26-2002, 01:07 PM   #3
Tronner
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Ryan,

Great numbers!

I'm just curious since I have the SBC-id as well, when you say it was off by 1 psi was it reading 1 psi low or high? I would assume low, since mine reads lower than my VDO gauge. Also, it says you have the SBC-id "for the moment". Do you plan on getting rid of it? If so, why?

Thanks
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Old 08-26-2002, 01:23 PM   #4
Ryan23
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Quote:
Originally posted by Tronner
Ryan,

Great numbers!

I'm just curious since I have the SBC-id as well, when you say it was off by 1 psi was it reading 1 psi low or high? I would assume low, since mine reads lower than my VDO gauge. Also, it says you have the SBC-id "for the moment". Do you plan on getting rid of it? If so, why?

Thanks
It's reading 1 PSI too low. I'm getting rid of the SBC-ID so i can utilize the Utec's closed loop boost control

Ryan
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Old 08-26-2002, 01:41 PM   #5
nmyeti
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Ryan,
I am Glad that you liked the tune; I know I was happy with the results. I think we've given you a great place to start with, and I suspect there is a whole lot more power in your setup for when you ditch the cat and add in the race gas.

I wish you would have been listening to the headphones on the first dyno run, as the detonation would have taken your head off. I suspect that you being 2 points leaner than you thought you were accounted for a good deal of the detonation.

All in all though, I am very happy with the results as your car was just so nice to drive when we were finished with it.


-Nathan

PS, as far as I know thatís the most HP that has ever been made on our dyno though a cat.
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Old 08-26-2002, 01:46 PM   #6
RiftsWRX
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WOOT!!!!!!!!!! Grats man!!!

Jorge (RiftsWRX)
www.ProjectWRX.com
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Old 08-26-2002, 01:51 PM   #7
mike@vividracing
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Well done. Looks like a nice linear curve. How does that VF 34 feel? When does it spool and does it pull through redline? How much boost is this on? Thanks.

Mike
VR
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Old 08-26-2002, 01:59 PM   #8
Twelvz
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Default AWESOME !

Thats sweet Ryan !

...I'm a week and 3 days away from working with TXS (actually maybe more depending on what they tell me on the phone this afternoon) can't wait to work with the guys to see what the VF22 can do with some Citgo gas !
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Old 08-26-2002, 02:33 PM   #9
Ryan23
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Quote:
Originally posted by vividracing2
Well done. Looks like a nice linear curve. How does that VF 34 feel? When does it spool and does it pull through redline? How much boost is this on? Thanks.

Mike
VR
Mike,
It takes a little longer to spool due to the FMIC, but hardly objectionable. I've attached the chart for the Boost curve on the dyno in 4th gear. It's capable of holding 20 all the way to redline (or pretty damn close). This dyno run was done with 20 PSI dialed in with the Blitz SBD-ID. Next time I head up there I'll be using the Utec to take charge of boost control.

Ryan
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Old 08-26-2002, 02:34 PM   #10
Ryan23
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Boost Curve:
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Old 08-26-2002, 04:46 PM   #11
Imprezd
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Congrats on the big power man...

I miss power

Imprezd~
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Old 08-26-2002, 08:58 PM   #12
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sweeet....can't wait to get my utec!
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Old 08-26-2002, 09:53 PM   #13
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GOOD STUFF!!

that curve looks really nice! Id love to take a spin in your car!


Im sure that youre aware of this, but youre getting close to piston meltdown power levels. Ive seen 2 go in my local area in the past 2 months at power levels very close to this. There is an upside to this though...soon there will be TWO STi type RA powertrain conversions in my area

Once again good stuff!!
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Old 08-26-2002, 09:59 PM   #14
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Quote:
Originally posted by RiftsWRX
WOOT!!!!!!!!!! Grats man!!!

Jorge (RiftsWRX)
www.ProjectWRX.com
Jorge - buddy, hate to break it to ya...but it's w00t !..not WOOT...

Nathan - Can you give me some more info on that knock monitor/headphone setup? What does it consist of? I'm very interested in it, especially since I have a lot of tuning to do in the near future, and I'm a rather anti-detonation type of guy...

Chris-BoT
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Old 08-27-2002, 02:04 AM   #15
annointed
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Default Re: My VF34 Dyno Results are in!

Quote:
Originally posted by Ryan23
My Greddy A/F was reading 2 A/F points richer than it should have been . Not good if you're tuning on the street/strip. It can be adjusted, I'm going to work with it or invest in a decent wideband if all else fails.
This is disturbing, as I was planning on upgrading my virtually useless Autometer A/F gauge for the Greddy...not so sure I should even bother...maybe Knocklink, EGT, boost, is enough, along with Autometer A/F light show gauge.
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Old 08-27-2002, 02:11 AM   #16
TurboWRXImpreza
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WOW!! Very nice #'s. I've been looking at that turbo for quite some time now...and the patience has finally paid off...I think I'm pretty settled on this turbo, I know I will be happy with this rather than the 1820 or 1818.

Just a few quick questions though:

1. What fuel management did you use? Can you explain it a little bit more on how you tuned it?

2. You were running 20PSI of boost? was that safe?



Thanks

Ray
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Old 08-27-2002, 12:00 PM   #17
Ryan23
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Thanks for the compliments guys, the car is coming along quite well. There is a lot more power to be had here, I'm interested in seeing how hard one of these "tiny IHI turbos" can be pushed. Once I reach that limit, I'll start investigating alternate turbos. It's nice now because I don't have to invest in a custom DP,Uppipe, ETC to make it all work. Not to mention how streetable the car currently is. I'm not too concerned with the block itself yet as they have been proven good to 400HP. Without nitrous, I don't expect to even approach that number with a VFXX.

Annointed - Yes, it was very disturbing for me too! I trusted in it based on other members observations and it could have proven disastrous. On my baseline run I was running 13.8:1@ 4K RPM and dropping down to 12.8:1 @ 4500 to redline. My Greddy was indicating 11.5:1~11:1. This of course varied with whatever timing the stock ECU was in the mood for but it was an average. FWIW, my Greddy is now showing the needle buried @ 8:1 sometimes 9:1 when 2 other W/B's@ TXS showed it running at 10.5:1~11:1. Electromotive is getting ready to release (from what I hear) a new wide band with a display here soon. I think it's priced in the $500 or so range. I would like to bounce it's readings off a known good W/B to see how accurate it is. It might be the ticket for us home tuner types.

TurboWRXimpreza -
1.) I am running TurboXs's Utec system. It offers fixed timing and fuel. There is a ton of "leaked" info regarding it in the thread under FF called "TurboXS new ECU product". It's tuned via a terminal session, IE: Laptop, Palmpilot, whatever app you want that will do terminal emulation.

2.) 20 PSI safe? Well, that's tough to say. All we can base this on is other people's experiences as I have yet to see a compressor map for this turbo. There are a number of cars with VF 30/34's running up to 22 PSI of boost. My EGT's are low (1400~1500), detonation is not present as noted earlier with a specialized headset to listen for this and my Air Fuel ratio/timing is in check. If anything, I have conservative settings. So is it safe? It's as safe as it's going to be in my eyes. Only time will tell. Now with some consistency in fueling/timing I think we will have a better understanding as to what a stock block EJ20 can take before it grenades. If I become a victim, so be it, somebody has to try

Ryan
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Old 08-27-2002, 12:16 PM   #18
jesse370
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I would worry about a piston far before the block....I've heard of a few high boost engines popping when they start making bigger power, but I think most of them were still running the stock tmic??

great numbers the more I see and read about this thing the more I can't wait to start pushing my car like that congrats man. You guys that test this stuff have bigger stones that I do.
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Old 09-07-2007, 05:14 PM   #19
WetDragon
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sweet results man.. just what im planning to do.
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Old 09-07-2007, 05:48 PM   #20
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Oldest bump ever?
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Old 09-07-2007, 10:05 PM   #21
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Originally Posted by RexFTW View Post
Oldest bump ever?
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Old 09-08-2007, 07:06 PM   #22
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Holy..effing...crap......from when the utec was first coming out? LMAO!!!
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Old 09-08-2007, 07:08 PM   #23
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Originally Posted by WetDragon View Post
sweet results man.. just what im planning to do.
Sweet dude, did you just buy tickets to the :failboat: too?
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Old 09-08-2007, 07:24 PM   #24
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Hahahah, I started reading the post and started thinking "Did the UTEC get a new firmware update??"

5 years, thats gotta be some kind of record.

On a good note, he must have been using the search button.
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