302.6 hp and 258.6 ft-lbs torque (STD) We did some major tuning, so horsepower and torque increased throughout the rpm's. HP and torque increased as much as 20 at one point.

The SAE corrected numbers were 288.9 hp and 246.9 ft-lbs torque. If you thought the first dyno graph was good... wait until you see this.

Edit...
The SC peaked at 9 psi, so it looks like the Aquamist dropped boost pressure by about 1-2 psi.

 

Nice Numbers Kev! What new tunning have you done to get up that much power cause thats about 20fwhp?? Anyways way to go! Ill be putting some new dyno numbers with NOS next Saturday Ill keep in touch...

 

Nice #'s Kev

 

weak

J/K nice numbers Keving!

 

Nice numbers. Now you just need to update your sig!

 

2k2 almost put that that much torque... well 20 away from it.. nice numbers kev

 

15

 

like the scarecrow said in the wizard of oz "if i only has some torque" j/k kev nice numbers update your sig.

 

Thanks.

Before I forget to mention..... Jane and I were only pushing 9 psi. Looks like the Aquamist decreased boost pressure by about 1-2 psi.

We didn't unhook the Aquamist system to see how much it would've put down. Oh well.....

Su (the dyno guy) and I dialed in the air/fuel ratio so it looks flat now.

 

Hahaha take a look at the 2k2 torque curve and kevs.

Kevs is flat at that number across the rpm band! Can you say "useable"
?

 

Nice numbers Kev, time for ya to go to the track!

 

congrats on the dyno!!

a chicago shop (APG) told my brother not to use Aquamist (or related coolers) on his SC'd prelude. is it's function for engine/SC longevity, or is it just for denser air (intercooler.) how does it work???? thanks

i think we're all anxious for your track #'s!!!

 

show-off...

 

When you get your WI installed, could you check the boost? Thanks.


Water injection will help prevent detonation. It does in-cylinder cooling, something a FMIC can't do.

I don't know why the shop told him not to use water injection.

 

damn you kev........damn you to hell......

just playin man........

impressive sh*t bro....

 

Nice numbers Kev.... but ur just missing one thing.... some 1/4 mile numbers!!! Get that babe to the track my friend!!!

 

Shure, I should have it done tonight! So I will be testing it out in the next few days.

I think the intercooling effect could be what is droping the boost preasure...

 

Matthel's almost done fixing his car... track time should be pretty soon.


Cool, thanks. Did you get a nice water reservoir or are you going to use the washer fluid thingy?

During the tuning session, we were wondering why boost pressure dropped... kept wondering until I was driving back home then I finally hit me that:
Aquamist = cools charged air = less temp, therefore less pressure!

 

I am doing a ghetto tank out of 3" PVC

 

I've got Kev envy........

 

So the question is, if you can keep enough water in the resevior, you can UP the boost by going to an even smaller pulley, right? However, if you run out of water, BOOM!

I guess that's why an IC is best for 10+psi levels.

 

Those are some sick digits, I could only imagine how you feel, 288.9hp & 246.9tqbuh, bye...

 

Did Russ let you out of http://www.5thgenmaximas.com again?


O no, you barely use any water at WOT. I can probably go about 3-4 gas fillups before being completely dry (but I refill the water after every fillup). Also, what the 5th gens have over the 4th gens is a washer fluid sensor. So if the water level does get too low, I will see the light. Without water, the car still should be alright because it was doing 11 psi without problems.

I did some research before settling for the Aquamist kit. IC isn't as efficient as WI (about 65% vs. up to 120%). I'm actually a lot stronger at 9 psi (cooled) than at 11 psi.

Up the boost?

 

[QUOTE]Originally posted by Y2KevSE
[B]

Did Russ let you out of http://www.5thgenmaximas.com again?

 

U took the words right out of my keyboard! Yeah Babe!!! Do it!!!

 

Oooooh, I didn't know the WI only comes on at WOT. I thought it was on all the time.

Hey using the windshield reservior sensor is a COOL trick!

If it was running at 11psi withOUT WI and no detonation, then 11psi with WI shouldn't be any different detonation wise, right? It's just whether or not your engine can handle it.

300+whp STD from an autoMAGIC is friggen AWESOME, but 300+whp SAE corrected withOUT a 3" Y/Exhaust is even better.

 

Hey Kev have you tried to use the 50/50 method with the WI? My friend at Toyomoto said that he finds it more efficient if you use 50% distilled water and 50%alcohol so you dont drop octane. He said that it worked great on their Turbo IS300. I ordered my Aquamist system but its gonna be about another week before I get it. Give it a shot or at least look into it... Peace good luck!

 

Kev this is a good idea for the 91oct gas you guys have in Cali. I got a gallon of denatured alcohol from Home Depot for $9.00. I plan on using 75/25 water/alcohol.

 

A friend of mine with a 3KGT-VR4 has an alcohol injection kit. He runs some pretty high boost at times and doesn't experience any detonation.

Kev, very impressive numbers. Is there a lot of torque steer? Ever tracked it?

I would seriously look into the alcohol injection... very very very neat stuff.

I think the only reason why water injection could be bad is if the jet malfunctions. that could reek all kinds of craziness.

I'm just waiting to see a Max with a FMIC or a water-to-water IC.

 

Yup, and we can adjust when it comes on (via boost pressure). 11 psi with WI should definitely prevent any detonation. Yes, as long as the tranny can handle it, the car should be fine.


I probably won't go as far as 50/50. Maybe 75/25 like what Matt suggested. Water is a better cooling agent than alcohol, but alcohol increases octane. Good luck with the WI!


What brand did you get? $9.00 a gallon? Thanks!


Thanks. I try not to launch or take it hard from a stop. I would say 95% of all WOT runs are rolling starts or on the freeway.

If the jet malfunctions, the car would still work normally but without the cooling effect. I'll probably get their new ERL's water pressure detection gadget when it comes out.

Deac and max'n out have FMICs. i30krab has a water-to-water IC.

 

Nice! Kev, are you running Redline tranny fluid? If not, it would be a SMART investment. That stuff is amazing!

Also, alcohol is NOT a good idea for long term reliability. I've seen the damage/corrosion it causes first hand on my senior project, which was a mini-Formula style race car with a fuel injected F2 CBR600 motorcyle engine burning M85(85%gas, 15%methonal). That stuff QUICKLY destroys anything plastic or rubber and even degrades metal.

Water is also not the greatest either, unless you need to steam clean your combustion chamber once in awhile to remove deposits. Just my .02, but don't let me rain on your parade, I enjoy all the PIONEER work you guys do. I'm just trying to add a little caution, but hey it's your motor and you can always rebuild it with stronger internals.

 

Yup, I'm definitely running Redline ATF. Do you think I'm that crazy to not run good stuff?

Yes, I thought about the water thing in the engine... but since the chambers get so hot, all the water vapor gets evaporated or shot out throught the exhaust. Steam cleaning the engine is a benefit of WI because it will remove carbon build up! Hehehe

Thanks for the tip. Looks like I'll be doing some research on the long term effect of alcohol in the engine.

Stronger parts AND more boost?

 

Long term effects.... liver failure on the midget

 

[vadervoice]impressive[/vadervoice]

 

Kev when are you gonna share the dyno plots?

 

[whining]... but but but the laptop in the other room.....[/whining]


Fine fine fine... I'll go grab it now.

 

Kev, I found a 2.5qt radiator overflow bottle from PepBoys for $10. I think it will work good! No I just need to wire the low wiper fluid sensor into the bottle

 

We used that exact same bottle for Jane's car. Make sure you use a hose clamp on the plastic hose or you'll start leaking.

Here is the dyno plot: http://forums.maxima.org/showthread.php?threadid=105146

 

Looks like I lost ~0.75lb's of boost. EGT's are still about the same, maybe a hair cooler. How are your EGT's looking? Are you going to get a smaller pulley now? 3.0' or 2.87? hmmmmmmm