turbo the hard body ka24e??

Forum for the Xterra, Frontier and Hardbody, the smaller workhorses of the Nissan lineup!
nismopu
Posts: 310
Joined: Fri Jun 24, 2005 4:44 pm
Car: 1987 Nissan 300ZX
1997 Nissan Maxima
1976 Datsun 280Z Turbo

Post

Again. They're not needed! They cause an oil pressure drop in the system more than they do good, especially if you're rapping the engine out. It only makes sense(to me) that they're would be passages. The frontier DE is a SOHC block with a DOHC of its own design and utilizes piston squirters. Everyone knows what piston squirters are supposed to do but many people have proven the SOHC in boosted form over at KA turbo forums without the use of piston squirters. peace.


Bigvinnie
Posts: 1079
Joined: Thu Apr 07, 2005 2:07 am
Car: 2004 Nissan Frontier desert Runner, 2014 Nissan Titan

Post

nismopu wrote:Again. They're not needed! They cause an oil pressure drop in the system more than they do good, especially if you're rapping the engine out. It only makes sense(to me) that they're would be passages. The frontier DE is a SOHC block with a DOHC of its own design and utilizes piston squirters. Everyone knows what piston squirters are supposed to do but many people have proven the SOHC in boosted form over at KA turbo forums without the use of piston squirters. peace.
I would tend to disagree a bit on this issue and I know that the discussion of oil squirters is a bit of a sensitive subject to some....

Truth is I've gone through a couple NAPSZ engines and KAe engines. Thrown rods, burned piston rings, just by reving the crap out of these engines to over 7000RPM.... Now I'm still using the same ka24de block and internals for almost 5 years and have been reving it passed 7200RPM... Oil squirters do work, the only problem is a bit of oil starvation that is caused from oil misting, that normally happens from oil being flung around the bottom end from windage. Oil squirters do work but the bottomend has to be designed to use oil squirters.Sr20det engines use oil squirters, but then again the bottom end is designed with windage louvers to reduce oil starvation and misting, and the KAde block does not use windage louvers and/or tray.


User avatar
BronkStang
Posts: 71
Joined: Thu Nov 13, 2008 4:04 pm
Car: 06 commander,94 HB Freddie,97 HB autox, 89 Bronco-stang

Post

so bigvinnie, your saying the hot ticket for a ka block that can rev to 7200 rpm is a ka24de frontier block with the oil squirters, and some form of windage tray?

the windage trays dont just reduce oil spary and misting, they are worth HP, like 10hp at 5-6k on a chevy or ford small block. they are really simple, just a metal tray below the crank.

anyway thats for some race beast ka24e. the person that originally started this thread probably wants a streetable stup with maybe 5-7 psi from a t28, intercooled, but what kind of options do we have for manifolds? any stock stuff we can run flipped over, or does it have to be aftermarket? can it be reliable? anyting running 550cc's we can grab the injectors from?

Bigvinnie
Posts: 1079
Joined: Thu Apr 07, 2005 2:07 am
Car: 2004 Nissan Frontier desert Runner, 2014 Nissan Titan

Post

BronkStang wrote:so bigvinnie, your saying the hot ticket for a ka block that can rev to 7200 rpm is a ka24de frontier block with the oil squirters, and some form of windage tray?

the windage trays dont just reduce oil spary and misting, they are worth HP, like 10hp at 5-6k on a chevy or ford small block. they are really simple, just a metal tray below the crank.

anyway thats for some race beast ka24e. the person that originally started this thread probably wants a streetable stup with maybe 5-7 psi from a t28, intercooled, but what kind of options do we have for manifolds? any stock stuff we can run flipped over, or does it have to be aftermarket? can it be reliable? anyting running 550cc's we can grab the injectors from?
Most WHP you will see on on a KA24de block engine with use of windage tray and scrapper is about 3 WHP on average. V8's typically show more HP simply because there are more cylinders and displacement is greater.

If you really want to make 10 WHP the best way to do it would to reduce bottom end pressure by adding a vacuum line to the bottom of the block inline to the PCV line, and use a crank scrapper and windage tray.

Or spend $5000 on a sub-par dry sump oil system, with combination of scrapper.


Return to “Nissan Trucks Forum”