Is 7psi safe on the ka24e sohc?

[waynegarcia13]

I am from the nissan trucks nico club. I have literally been dreaming of installing a turbo on my ka24e sohc hardbody truck. Also my intake is different than the 240sx because the throttle body is verticle, however the exaust manifold is exactly the same to the 90 240sx. I have read a lot from the ka24t forum but i didn't see any first hand stsments from a sohc guy with a turbo. I am not looking to break any speed or horsepower records. I only want to have around 220whp. I was wondering if that is a safe goal with completely stock internals? Maybe one day i will build a motor with all of my dream parts but i just need something reliable with more power to push my over sized 31" tires which are literally more than twice the size of stock.
I was also wondering if the kit(s) on ebay are good enough like this one http://cgi.ebay.com/89-90-Nissan-S13-24 ... 2c506bc873

I hope this info isn't already posted and i hear back from you guys cuz you are the only ones i have seen with any experience turboing the ka24e

[seang]

adding-a-turbo-to-a-stock-ka24-noobs-read-t226410.html

[s13drifter88]

yes but to do so i would recommend a set of 440cc (top feed) injectors, s14 or s15 t28 turbo, n60 maf, enthalpy or jim wolf re-flash ecu and an oem rebuild. u could use a t25 but they seem a little to small for a ka. the 28 would be much more efficient and i would definitly get the hks adjustable actuator to replace the stock wastegate actuator, it'll lessen the chances of spike or creep

[WDRacing]

Assuming you have a good tune, the power limits of the stock parts are around 450-500 before things start to bend. Detonation kills motors pretty quickly, so insuring you have no knock is key to reliability. The KA will reliably make 300whp for years with the proper maintenance.

[s13drifter88]

AMEN

[StephenG]

Don't mean to hijack your thread, but I'm tossing around the exact same idea for my 93HB. Assuming we have a good engine to start with, how much money are we talking to get something reasonable like 220-240 hp out of these? I would rather not do anything that's going to force me to rebuild every 24months too.

I know you guys have heard this thousands of times but I am a total noob when it comes to anything turbo. My last car was a 72 Olds 350 and that build was simple lol... Thanks for letting us pick your brains.

[martins_240sx]

The ka24e is a workhorse in my opinion...everything ive thrown at mine it has taken in stride...mine has seen 20-30lbs of boost and the only thing to go is the head gasket. tuning is the main factor. Check out my build page search for True Pig Build. The sohc is a simple monster.

[GEO]

Plenty safe granted your timing is correct... fuel map and a/f ratio is correct and you properly take care of your engine.

[waynegarcia13]

well i have a hardbody so far i bought a t25g turbo,inter cooler, safc 1 and i also bought an intake mani from a 93 harcbody cuz it has top feed injectors instead of mine which is sidefeed . But i was thinking that the frontier super charged injectors must have larger injectors right??? the frontier injectors are the same thing as mine, they will drop right in but i can not for the life of me find out how many cc's the frontier sc injectors are anyone know the answer to this riddle.

[s13drifter88]

i would stay side feed. side feed injectors are bathed in the fuel constantly so therefore they cool better and can be run at a higher duty cycle

[waynegarcia13]

That would be great if i could find a injector that would fit. For months i have been trying to find out what cc the super charged frontier has but know one knows, its a big mystery. The frontiers injectors will drop right in my fuel rail perfect. If anybody knows this please speak up.

[s13drifter88]

im really not sure but imma guess atleast 370. u could buy them and send them to RC Engineering or Deatschwerks to have them cleaned and flow tested and thatll tell u how much they are exactly. Honestly tho id go to deatswerks website and just order a set of 440's and be done. i have a 96 hardbody as my DD and it has the standard ka sidefeeds which are 270's and i could drop in a set of 440's or 550's or anything and then have the ecu flashed fr them by either enthalpy or jim wolf technology. its really about the easiest way to do things. add injectors and a bigger maf and then let jwt flash the ecu to operate with the larger hardware. its basically the stock parameters only lightly optimized and calibrated for the hardware of your choosing

[waynegarcia13]

ya im on the KA-T forums all the time im just having trouble finding injectors that will fit, deatsch works told me they didn.t have anything for the 97 hardbody. I bought the 93 hardbody intake with the top feed rail cuz thats what i have seen some other guys use but i have never talked to them but apparently there is injectors for the top feed hardbody rail so its just a matter of finding them. I have a safc 1 and am planning on tuning with that at low boost with my t25g turbo from a sr20det which is a small turbo but i don't want a ton of boost.

[s13drifter88]

well ive got a set of top feed Denso 440's. Theyre from an fc3s rx7. They flow perfect. $100 takes them if u or anyone u know is interested

[illmatic1690]

would those work with an sohc from a 240? im interested

[waynegarcia13]

ya 240 guys use the rx7 injectors all the time

[WDRacing]

For that little old turbo you could easily run a 255lph fuel pump and a 6:1 FMU. The SOHC already has lower compression so you should be able to run 7-8 psi without even retarding the timing. $200ish should get you rolling

If you need a good place to find injectors, try www.summitracing.com they have their injectors listed with sizes so you can match your stock rail.

WD

[neverlift]

not sure how top feeds would respond to increase base fuel pressure, but sidefeeds love it, I ran 11~13psi on a walbro and bumped(to like 65 no vac) and had no issues, probably not THE safest setup.... I second walbro and fmu, I happen to have a 7:1 for sale comes with replacement lower disc and a 12 disc incase you get a honda btw its vortec and the upper silicone is new only 10k or less.