does the ka have any weak spots?

how reliable is a ka-t?
can you safely get 300-350hp from it?
is it a time bomb?

 

Pistons are the first to go, or rather, the skimpy rings/ringlands. Detonation is the KA's doom. The limit of those varies. 350-410hp on stock pistons has been done. I'd say prolonged amounts of 350+hp is gonna test what shape your motor is in. Rods are decent but still dinky. They'll be the next to go, and will probably take chunks of your block with it. If your motor is strong, you'll be lucky to just pop headgaskets rather than disintegrate blocks. Cranks are beefy, dont require any work (other than normal rebuilding methods like a polish or balance). If you want to rev it beyond 7000, just get an SR20. KA's can do it, but KA-T is a 3000-6000 power tq beast. doesnt need vtec or 11enty billion rpms.

as reliable as you want to make it. money=tuning=longevity and safety

yes. a good handful have been running 330-350 for 3 to 5 years now. stock blocks (it should be noted one in particular im thinking of was a 97 motor with ~20k miles on it [in an s13 chassis] and the other was turbocharged [1997 motor and chassis] with ~17k miles and has been running ~1 bar for almost 5 years now. 330whp and no problems.


It comes down to tuning. 50# injectors, Z32 MAFs, JWT ECU or ROM tune, or Greddy E-Manage/AEM/etc. will make it the easiest for you to get there.

 

yeah...what he said. Look at Maxtype240's car. +275hp on a motor w/ 148,000 miles. 275hp aint too shabby considering he hasn;t touched the block yet.

 

It's all in the tuning.... The KA is stronger than more people give it credit for. 90% of people who are popping motors at 350whp, are doing so because of improper tuning. Maybe Scott could chime in here..

Travis

 

so if you leave the boost at 10psi and make say 250-270 to the wheels you should be builit proof? cause thats all i want.

 

honestly, I would assume that all depends on tuning. A good tune and you should be able to hold it, but that also depends on the condition of your motor. If you have 200,000 miles its a long shot I'd say, but I'm crankin mine up to nine shortly and I'll let you know of any devastating outcomes.

 

right.
damnit! I want revs.

 

Revs? Like bouncing your KA off the 7500rpm rev-limiter? Hey, sometimes ish happens.
-Jeff

 

my 1jz loved to do that.

 

No, check this link out. T25 making 274whp and 310 ft. lbs @ 14psi. Stock short block.

Post #9 by AceInHole.
http://www.zilvia.net/f/showthread.p...highlight=dyno