351whp/334wtq at 16psi

[nissanfanatic]

I also did 338whp and 330wtq at 14psi



It was freaking 75* when I dynoed too... So that explains why my numbers are low compared to before.

I feel like such a dumbass because Ryan(klattr1) told me last night to take a gapper so I could gap my plugs down. You can clearly see in run one that I was missing really bad. Where the graph didn't show, that is all misfiring. Either way, I'm happy with the results and I will prolly go back when its gonna be cooler out and gap my plugs down.

This is on a stock engine with 140,000 miles and done with pump gas!

[klattr1]

good job Cory! congrats on 351 whp!

[crzycav86]

Great numbers man.

Seem to be reaching the limits of the stock block though... how much power are you going for?

[Chezedik]

But you have been running this way for a while haven't you?

[Craving4Boost]

wow 16psi stock internals...you got balls. looks like that enthalpy works great though eh? do you think fine tuning with the safc had anything to do with your long lasting ka-t?

[S13 240SX]

god damn!!! your KA-T has major balls! I thought KA's stock could only handle 12psi and up to 300hp. GOOD WORK ON YOUR MOTOR MAJOR PROPS!

[Florida240sx]

Nice numbers?Where's a link to your setup?

[GEO]

Wow, too many misinformed people. A motor can handle a good amount of horsepower and a good tune.

[Craving4Boost]

Wow, too many misinformed people. A motor can handle a good amount of horsepower and a good tune.

time will tell.....

[sunnys14]

time will tell.....

i 2nd that

[4felix20]

i would think you'd actually be able to leave the gap open a bit wider since you're running that MSD coil. maybe it's time to shell out the cash for a basic ignition box to couple up with that coil. just a thought. closing the gap would save a bunch of cash though.

nice numbers. you're getting really nice power per PSI...

[Jookmasta]

congrats also. must feel nice man! whats ur current gap and what do u plan on gappin it down to? isnt there a certain point at where u cant lower the gap down anymore without affecting other things like driveability outside of boost? i see the msd box coming more and more into the picture as u near the 20psi mark.

[klattr1]

isnt there a certain point at where u cant lower the gap down anymore without affecting other things like driveability outside of boost?

thats a good question. i've found going any smaller of a gap than .022" starts to make driveability (mainly half throttle cruising) crappy with lots of hickupping and poppin.

[grimple1]

Nice numbers?Where's a link to your setup?

I took this from his cardomain link. I hope he doesn't mind.

"Mods include: GroundZero manifold T3/T04E 50trim w/.63ar turbine housing Turbonetics evolution 35mm wastegate 3" custom downpipe made by me TurboXS Type RFL Blow Off valve Boostdesigns intercooler kit Enthalpy Tuned ECU 615cc injectors 300zx MAFS Apexi power intake Apexi SAFC Apexi AVC-R Apexi N1 exhaust IAP oil line kit MSD SS blaster coil w/ my rewiring mod (http://www.ka-t.org/ignitionrewire.htm ) ACT heavy duty pressure plate with organic disk NGK BKR7E-11 plugs Magnecor plug wires Walbro 255lph fuel pump rewired (http://www.ka-t.org/tech) S14 seat Stripped trunk My Overboost protector ( http://www.ka-t.org/overboost.htm )

Basic matinence like a banshee. Mobil 1 synthetic only."

http://www.cardomain.com/ride/2174172/1

[nissanfanatic]

Yup, time will tell.

And when that time comes, I'd rather be the one that blew his engine making 350whp rather than saying "The KA can't handle boost!!" or "350whp is the LIMIT!!11"

I push my engine so future KA-Ters can have more feedback on how/where the limits lie. So, speculate all you want on how long/how much my engine will handle, and I'll find out...

Somebody has to do it.

[virus77]

Good job man, hopefully his motor will last longer than most since it has a nice tune on it (enthalpy), it really does make a big difference.

[Edub1]

How much can a new stock clutch handle?

[Chezedik]

Or even the stage one ACT, which must be similar to the 240Z clutch. If it holds this, I will push ahead to my 350 HP KA-t. I already have almost all of the encouterman' (sp?).

[Jookmasta]

hey cory, what is ur gap set at and what do u plan on dropping it to?

[Chezedik]

Maybe a box would help, I know that is one of my supporting mods. I know that a stock ignition can handle 350 on the T04e, but I want to prevent a miss. I have the Jacob's i.C.E Pak. A good 6AL box, plus your excellent overboost deal is a good idea. I will def be using your overboost gig.

[Edub1]

What's the deal with ignition mods? My ignition works fine and boosting brings things closer to energy of activation to begin with. I've also seen a study, although I don't think I could find it again, that showed that all sparks are equal that are sufficiant to start combustion. That is to say that there is no difference in the spreading of a flame front or the speed of ignition. I assumed that the idea has always been to use the smallest possible gap to prolong the life of the plug.

What is the theory behind smaller gaps and why would you need a more powerfull spark when you are already closer to the point of activation?

Also, my friend authored 2 MSD patents and he told me that the point of an MSD is to ensure operation under the worst possible conditions. Using this for performance applications is simply hype.

[1WheelWonder]

Awesome numbers Nissanfanatic.

[Jookmasta]

well i wouldve thought that the msd boxes increased ur spark when combined with their coil. unless im mistaken, i could see where that would work. that what u described sounds like one of the features for their digital stuff but explain a little more since i have heard that story before from other websites.

sorry for the side topic, congrats again cory.

[Chezedik]

What's the deal with ignition mods? My ignition works fine and boosting brings things closer to energy of activation to begin with. I've also seen a study, although I don't think I could find it again, that showed that all sparks are equal that are sufficiant to start combustion. That is to say that there is no difference in the spreading of a flame front or the speed of ignition. I assumed that the idea has always been to use the smallest possible gap to prolong the life of the plug.

What is the theory behind smaller gaps and why would you need a more powerfull spark when you are already closer to the point of activation?

Also, my friend authored 2 MSD patents and he told me that the point of an MSD is to ensure operation under the worst possible conditions. Using this for performance applications is simply hype.

They are for the worse possible conditions, and I would say that the increased combustion chamber pressures are pretty rough. The smaller gap allows for easier firing, and so less chance of misfire. A plug will only see as much voltage as is necessary to fire. But the MSD uses Capacitive Discharge, so that at high RPM it's saturation time is much less. This allows the oportunity for multiple spark (hence the name, Multiple Spark Discharge), although not an absolutely necessary feature, it does insure a little better burn. By bringing things closer to the energy of activation, you do not have enough time to fully saturate the coil at high RPM, this is why the box helps.

[Edub1]

Well that makes sense. The MSD coil charges up faster? I'd imagine you would have to exceed the stock red line beofre this would become an issue though. Is this so?

As for multiple spark and "worst possible conditions" that would be say, starting your car in the Rocky Mountains, in the dead of winter with bad gas and a weak battery.

Running at just under detonation level would be the opposite because you need very little to push things to the energy of activation.

As for multi spark durring combustion; that is like tossing a match into a forest fire to help it burn. But lots of "performance" stuff is serpurflous. Just like those aluminium intake air heaters they sell as "cool air" intakes.

I might however consider a better coil if there is reason to believe that my stock coil isn't doing it's job. Is there such reason?

[Structure240sx]

way to go buddy. sorry for being late. i just got back from vacation a a canceled flight

[Poor_S13_Driver]

Congratulations man. How does it feel on the street? Any driving feedback would be appreciated.

[nissanfanatic]

On the street.....lol....its useless below 60mph... But I do run stock alloys...so that explains.

Other than that, I've had it to 17psi(1.23kg/cm2) so far on the street and its super fun! Prolly gonna tone down a lil tho because I really don't need that much power for what I do..

[nissanfanatic]

A larger gap takes more energy to bridge. If air is more dense in the gap, then more resistance is present. So it will take more energy to overcome that resistance or you will need to make the distance that a set amount of energy is required to travel shorter.

Stock coils are trash... Most of your decent MSD coils run ~$40. My stocker crapped at 5psi. I got a total of 7 runs in on that coil before I started missing at a .030" gap. Pretty soon, I couldn't make 1-2psi of boost and I hit a brick wall... Then one day on the way home, my car was barely driving... I put in BKR6E-11s and it started.. Next day, my car wouldn't start...

So..stock coils are trash for S13s... The S14 internal coil setup is good for a decent amount of power. I would prolly be just fine at this power level on it.

[Poor_S13_Driver]

Nissanfanatic i just watched your video on your car domain nd all i have to say is wow. Very impressive. I wish i knew someone/anyone with a boosted car that i could drive or even ride in to get a feeling of what boost is like. Im sure if i did it would motivate me 100x more to get my project going, but should be starting it around summer. Still reading everything i can and learning, but again awesome job with your setup.