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Old 05-24-2006, 07:27 PM   #1
Element Tuning
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Default Element Hydramist water injection 583 whp UPDATE Runs 10s!



Itís been a long time since Iíve been able to dyno my own car and more importantly publish results from the Element Hydramist water injection system weíve been testing over the last year. What you are looking at is 583 whp using Cam 2 108 octane race gas and the Element Hydramist water injection system. With this system I was able to tune the car like it was running on VP C16 but instead of paying $12/gallon this gas is about $4.60/gallon. The lower 535 HP number is on 93 octane pump gas and water injection which is really impressive.

We changed up a few things on our engine which helped to boost power. First off letís get the specs out of the way:

Engine: Element built 2.5 liter STI OEM Long block
Pistons: CP .020 overbore
Rings: CP
Rods: Pauter
Cams: Axis Racing Kelford AVCS, 272, 10.3 mm lift
Heads: OEM (no porting)
Valve: OEM
Springs: OEM
Bearings: OEM
Gaskets: OEM
Crankcase Vent: Element Competition Catch Can
Engine Management: Element Hydra EMS
Water Injection: Element Hydramist
Turbocharger: Element GT75 Turbo Kit (75 lbs compressor/ .82 turbine housing)
Wastegate: TurboSmart Ultragate
Exhaust: Element 3Ē stainless
Boost Controller: TurboSmart E-Boost 2
Header: Element 4-2-1 stainless
Radiator: Koyo
Thermostat: Crucial Racing
Intake: Element 4Ē
Intercooler: Hyperflow FMIC core
Blow Off Valve: TurboSmart Megasonic
Fuel System: Element 2 liter Competition Surge Tank
Fuel Pump Primary: Aeromotive A1000
Fuel Pump Secondary: Walboro 255
Regulator: Aeromotive
Fuel Lines: -10, -8, -6 AN
Rails: BDL Top Feed WRX
Injectors: 1000cc RC Low Impendence
Transmission: Andrewtech PPG 5 speed Straight Cut Dog Box
Differential: Quaife Front
Clutch: Clutch Masterís Stage 4, lightweight flywheel

All I can say is the Hydramist water injection system is the catís meow! Iím really happy with the pump gas numbers of 535 whp given Iím running summer grade windshield washer fluid which is only about 15-20% methanol. Iíve been using the ďblueĒ stuff for over a year and at $1.68/gallon I wonít be changing anytime soon. Inspection of water nozzles and tank have proven no ill effects and tear down of motor show just how clean the pistons are when using water injection. Not all injection systems are created alike and to safely feed this level of power with water requires a well though out system.

The Cam 2 108 octane power with water injection also worked out well at 583 whp. Running VP C16 at road racing events can get seriously expensive. At one Time Attack we can burn up to 30 gallons of race fuel. At $12/gallon thatís $360 in gas alone but we learned that we can use lower grade race fuel with the Hydramist system but still run the same fuel and spark mapping. At last yearís Time Attack we only spent about $135 on fuel by comparison.

I really would have liked to see more out of the turbocharger but I think we are dealing with one of two limitations or possibly both. I think the .82 exhaust housing is just not going to cut it with at 75 lbs turbocharger and itís highly likely when I switch back to the GT65 setup not only will I have superior spoolup but also the same HP. Going larger will result in a laggy pig so itís likely I wonít even bother. The other limitation may be in the lack of head porting or the stock valves. Before I change those items Iím going to change the wastegate spring so I can go for 40 psi. Iím also going to run VP C16 and give it a 70 shot of N20.

For now Iím happy since canít even drive the car straight anymore.

UPDATE:
60ft 1.818
330ft 4.745
1/8 7.010
MPH 106.40
1000 9.043
1/4 10.762
MPH 133.74

Thanks,
Phil
Element Tuning
(240)246.0302
http://www.elementtuning.com
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Last edited by Element Tuning; 05-26-2006 at 08:16 PM.
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Old 05-24-2006, 07:30 PM   #2
BREWPUBEAVER
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so your hitting full boost by 6500rpms?


awesome build up man, but it seems like this would destroy all on a road course but as a daily driver would be lacking...
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Old 05-24-2006, 07:44 PM   #3
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Car sounds like a blast. I was thinking of doing 91 + the hydramist, but you have me tempted to just run 104 + hydramist all day long on my car now Keep up the good work Phil!

-Dan
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Old 05-24-2006, 07:46 PM   #4
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are there any issues with the spark timing that you can use prior to the Hydramist boost trigger point?

I understand that cam2 is cheaper, but one might leave some on the table if you could spool the turbo faster and with more power under the 5-10 psi you start spraying....
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Old 05-24-2006, 07:49 PM   #5
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Very impressive. Any updated pictures under the hood of your car? I also was not aware that one could run 272's on stock valves and springs.

I cant wait to purchase a Hydramist setup of my own!!!

-Matt
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Old 05-24-2006, 07:58 PM   #6
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Quote:
Originally Posted by ShaggyGT
272's on stock valves and springs.
whaaaa????
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Old 05-24-2006, 08:04 PM   #7
ShaggyGT
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Thats what it says:

Cams: Axis Racing Kelford AVCS, 272, 10.3 mm lift
Heads: OEM (no porting)
Valve: OEM
Springs: OEM

I wasnt aware that was possible. I knew it was doable with 264's but not 272's.

-Matt
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Old 05-24-2006, 08:22 PM   #8
keaniegenie
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Quote:
Originally Posted by BREWPUBEAVER
so your hitting full boost by 6500rpms?


awesome build up man, but it seems like this would destroy all on a road course but as a daily driver would be lacking...
That's how all these big setups look like at first. Look closely, he's a 300lb by 4500RPM. That's not bad for a 75lb turbo.
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Old 05-24-2006, 08:38 PM   #9
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Holy S*** Phil....

whats the whiplash like on the stree LOL, that turbo must kick like a mule.

Wish I would have just went the Hydra route in my STI, but...Hindsight is well, you know the story.
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Old 05-24-2006, 09:04 PM   #10
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Color me impressed. No chance of you bringing these out to cali on the 31st is there?

P.S. Check your email.
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Old 05-24-2006, 09:22 PM   #11
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Quote:
Originally Posted by keaniegenie
That's how all these big setups look like at first. Look closely, he's a 300lb by 4500RPM. That's not bad for a 75lb turbo.

granted, but i really like having 450whp @ 4000 rpms
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Old 05-24-2006, 09:39 PM   #12
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Quote:
Originally Posted by BREWPUBEAVER
so your hitting full boost by 6500rpms?


awesome build up man, but it seems like this would destroy all on a road course but as a daily driver would be lacking...
I don't really think so at all, cause look at how much power hes puttin down at 3500rpms... 150Ft LBs of torque!!! thats how much my car peaks out at 4600rpms lol it makes me sad.

Lets just say if i were ever to get an STi and fix it up, element tuning would be the company i'd go with! Great Job man, that hydramist looks like a worthy peice.
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Old 05-24-2006, 10:08 PM   #13
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Keep up the good work Phil
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Old 05-24-2006, 10:15 PM   #14
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great job phil, looks like a very nice setup.
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Old 05-24-2006, 10:59 PM   #15
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What rods are you using, pretty please?
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Old 05-24-2006, 11:12 PM   #16
Element Tuning
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It's a big turbocharger with big lag, no doubt about it. On the road I see 20 psi by 4800 rpm which honestly isn't bad given the size of the turbocharger. Once online the power doesn't stop all the way to 8K rpm. To make the lag truly worthwhile I would like to see more HP.

The plot is deceiving however. A stock STI which feels like a really responsive car puts out about 230 whp at 5500 rpm on this dyno. This setup is already making 230 whp by about 4400 rpm. Just food for thought.

Thanks,
Phil
www.elementtuning.com
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Old 05-24-2006, 11:14 PM   #17
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as always beautiful work i wish i was all done so i can start tinkering..

great job phil as always. you have any pictures of the hydramist?

-Mike
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Old 05-24-2006, 11:17 PM   #18
Element Tuning
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Pauter rods.
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Old 05-24-2006, 11:28 PM   #19
Element Tuning
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Quote:
Originally Posted by RainMaker
are there any issues with the spark timing that you can use prior to the Hydramist boost trigger point?

I understand that cam2 is cheaper, but one might leave some on the table if you could spool the turbo faster and with more power under the 5-10 psi you start spraying....
With a turbocharger this efficient you can run gobs of timing even on pump gas. I'm sure I could pick up a few ponies under 10 psi but the bottom line is that I wouldn't be caught dead under 4k anyway especially when I'm on race gas which means I'm racing

Thanks,
Phil
www.elementtuning.com
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Old 05-25-2006, 01:43 AM   #20
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So your reving to 7800rpm on a stock head basically right? How would you feel about a completely stock sti ej257 reving to 7500rpm? Am i playing with fire?
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Old 05-25-2006, 02:09 AM   #21
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Phil... you are the truth. Is there any official word on this Hydramist setup? I still may go for it....
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Old 05-25-2006, 04:13 AM   #22
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Quote:
Originally Posted by ShaggyGT
Very impressive. Any updated pictures under the hood of your car? I also was not aware that one could run 272's on stock valves and springs.

I cant wait to purchase a Hydramist setup of my own!!!

-Matt
That also was the first thing to jump out at me, maybe it's a typo? Anyway, great numbers, and when can we buy one???
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Old 05-25-2006, 10:05 AM   #23
ShaggyGT
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Quote:
Originally Posted by ShaggyGT
Very impressive. Any updated pictures under the hood of your car? I also was not aware that one could run 272's on stock valves and springs.

I cant wait to purchase a Hydramist setup of my own!!!

-Matt

Phil,

Can you confirm that you are indeed running 272 cams with stock valves, springs, ect..

-Matt
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Old 05-25-2006, 10:58 AM   #24
04blue-meanie
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Very impressive, i would also like to have confirmed that it was 272's on an otherwise stock valvetrain. I would really like to see a gt65 curve with the hydromist as well.
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Old 05-25-2006, 12:47 PM   #25
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i rode in that car the other day, and its as phil put it, "its Balls to the walls FAST".
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