PHATKA-T.com 502 WHP

[IvanAtSPRacing]

I know I promised you all an update on my projects so here it is.

The twins S13 (PK R&D car) finally had enough miles on it to push a bit of boost thu it. We started out at base boost of 10psi and worked out way up. In the low 20psi range we started to have some issues. We ended up having to gap the plugs down from .030 to .025 due to missfiring and the clutch also started slipping at peak TQ (520+ TQ) To over come the slipping clutch we ended up rolling into the throttle at about 4600 rpms (past peak TQ) so that we could get HP numbers. At 25.5 psi we made 502.13 whp and 482.99 TQ. These numbers are UNCORECTED actual HP we made today. We reached our goal and called it a day. I will address the igniton and clutch issues soon so stay tuned.

Build sheet short list:
91 240sx KA24DE-T
Arais forged pistons 8.8 cr .020 over
Factory rods shotpeened with ARB BBC rod bolts
Cometic .040 MLS gasket
ARP head and main studs

Stock 91 cams
Stock head with NO porting
Stock intake manifold with swirl control valves removed
Stock throttle body
Stock ignition

PhatKA-T.com turbo kit with GT35-61E turbo
PhatKA-T.com fuel system with 95lb injectors and twin Walboro 255L pumps
PhatKA-T.com intercooler kit rated to 400 HP (I know, its too small)
AEM EMS full stand alone engine management system

http://www.phatka-t.com/PhatKA-T502WHP.jpg

http://www.phatka-t.com?PhatKA-T502WHP.MOV (http://www.phatka-t.com/PhatKA-T502WHP.MOV)
Right click and save as

[drftwerks]

whats up w/ the jagedness (i dunno erally how to read dyno sheets)

[IvanAtSPRacing]

whats up w/ the jagedness (i dunno erally how to read dyno sheets)

That is graphically exactly what the dyno is seeing based on the inputs its geting. I believe it has to do with the sampeling rate. I could turn smoothing on but decided to leave it raw. Smothing will take out the peaks and valleys and would have shown maybe 10 hp less.


HP (red) and TQ (blue) are on the same scale (0 to 500). To figure out RPMs, draw a line from the RPM scale on the left of the graph and extend it to the right till you hit RPM line (black) and then go directly up from there to see what the HP and TQ are at that RPM

Example at 5800 RPM head right till you hit the RPM line (aprox 22.42 on the time based scale at the bottom) then go directly up from there and you can see there is aprox 480 WHP and 440 TQ.

Mustang Dyno graphs suck. We have the new software but havent loaded it up on the dyno computer yet.

[Tweaker]

Nice #'s! :bowdown: The KA is a torque monsta.

[IGSDann]

Stupid truck engine eh? :fawk2:

:rl:

I think not... That's definately awesome... I want some quarter mile times now... and secure that frame a little more, looks like it couldn't handle the torque!!! :D

[BoroBoroS13]

Thats bad ass dude. Keep up the good work.

[IvanAtSPRacing]

Thanks guys. Yeah, the TQ is the biggest problem right now. The clutch just cant take the hit when the boost comes on. I will solve that issue really soon and get that power to the wheels. I am going to try a 6 puck disk in the ACT clutch (has a Max series PP now with a fiber street disk) and that should provide more grip. I will get an MSD and coil on the car to keep the ignition firing. I am going to change the WG spring in the Tial 38mm to a much stiffer spring for better boost control at the higher boost levels. Once everything is dialed in, I have a set of street cams (designed for boost) to put in. And I then its time to slap the racing intake manifold on the car and see how that changes the power output.

Truck motors ROCK

[Ghettokracker71]

Wow. Very impressive numbers from that KA with the specs given. Wonder what kind of difference a more appropraitely sized I/C would make? Either way,keep up that good of work and you might have a potential customer right here,once I get some money of course:keke:

Either way,awsome stuff :bigok:

[aa87]

makes me want a KA-T now!

[SlideStar]

500ps KA24det is sweet. Don't stop at 500 though :nono: keep it coming!

[MakotoS13]

screw this dynoqueen crap i wanna see that sucker run down a track!

[Jeff240sx]

screw this dynoqueen crap i wanna see that sucker run down a track!

Do you not see the drag chute in his sig? I'm sure it will run down the track, however, R&D is more important for PK, and us KA-T owners at the moment.
-Jeff

[MakotoS13]

yeah, i just wanna see it run NOW.

[IvanAtSPRacing]

Unfortunatly, its winter in Chicagoland. With temps being too cold for traction and days when snow is covering the track, it will be a while before we get it down the 1/4. With the original 115,000 mile motor in bone stock form, with a smaller turbo, this car went 11.71 @ 118.54 Not bad for a street car :) Click here for time slip and video (http://www.phatka-t.com/projectcars.htm)

My personal S14 (the one with the parachute) is on the other end of the spectrum being purpose built to drag race. My goals for my car are well beyond what anybody has ever attempted.

[crioten]

what kind of #'s do you think you will have once everything else is done?

im loving the manifold glowing :)

[IvanAtSPRacing]

what kind of #'s do you think you will have once everything else is done?

im loving the manifold glowing :)

Good catch on the glowing manifold. I was wondering when somebody would notice. Thats a LOT of heat to get Sched 10 SS to glow.

Ultimatly, I think the motor can make another 50 HP with cams and intake manifold and another 50 HP in boost (limit of 3 BAR MAP I am using). What I dont know is if the factory rods will come apart at that level. I dont think anybody has pushed them that far. Even with the shotpeening and the ARP BBC rod bolts, its something I am concerned about.

[dunno]

Eek, 502WHP on the stock rods? You're playing with fire at that level, my friend. Great car, though.

-Matt

[IvanAtSPRacing]

Eek, 502WHP on the stock rods? You're playing with fire at that level, my friend. Great car, though.

-Matt

I dont believe that anybody has tested the KA as much as I have. I have blown up three motors now just to see how much HP the factory pistons will take before the ring lands break. I dont believe that anybody knows the limits of the factory rods but I expect I will find out eventually. We have made 980 WHP on stock rods in the MKIV Supra. Who could would have thought that a stock rod could take so much power. I think it would be hard to say for sure I am playing with fire. You could be right or you could be way off. Any way you look at it, I am currently making FOUR TIMES the factory HP on stock rods with upgraded rod bolts. Not too shabby IMO. I guess it pays to have the strenght of a "truck motor" :)

[Slam]

How much boost can you safely run on a stock KA24DE? It has 130k miles and I use the thing to commute, about 45 miles daily.

thanks

[evilimport]

How much boost can you safely run on a stock KA24DE? It has 130k miles and I use the thing to commute, about 45 miles daily.

thanks
Mileage doesnt really matter at all.... its the compression of the cylinders that determines if the motor is good for boost....

[mellojoe]

Awesome, Ivan. Very awesome.

[MakotoS13]

Resurrection In Honor Of The Mighty Truck Motor

[97DubTruck]

Ugh that parachute is just scary. When I went to the track I was careful not to line up with anything with a chute. Especially if I saw an s14 with one.

Awesome Ka power. :squintd:

[MakotoS13]

why? the only thing better than getting owned by a beautifully fast machine is being IN the beautifully faster machine.

[publicenemy137]

I've love to see the 1/4 mile of that KA beast. Keep us posted

[nismo2491]

can't wait to see some more numbers Ivan. makes me want to finish my car up that much faster.
I've ran ACT XTR$ (x-treme pressure plate, 4 puck disk) in a ka car w/ probably close to 500ft/lbs of torque (never got professionally dyno tuned or anything) on the bottle, and never had a hint of slipping. so the 6 puck should hold just as good, just will probably break less shit.
KEvin