people say max 14psi befor you blow it. but for daily driver people say 7-9 psi

 

re-sealed completely and the block honed? and head ported?

 

people shouldnt give you an exact number of psi before knowing what size turbo you are going ot use. For example 7psi on a AR .25 turbo is not the same as say a AR .60 at the same psi. They put out different volumes of air. As for the strength question... the stock internals are daily boostible safe at 7psi. with a T3/T4 with AR .60 trim. I have experience in boosting the ka24, i helped build and test my friends turbo'd 240. You can get a good HP number with a simple bolt on kit from CXRacing. I recomend you to check it out!

 

what turbo would you recommend for 8-9psi on a KA24E daily driver.... in a chevy luv pickup 0.o
full rebuild. head porting, gasket matching, ecu programming.... etc...

 

how much HP you want to get? 200? 250? 300?

 

^if you are really planning on doing that, i demand a build thread.

 

Nobody noticed this was in the wrong section.

 

300-350hp would be nice my friend told me to get a .60 trim turbo i really dont kno much about boost thats y im trying to find out all the info i need before i tart buying stuff .

 

sorry dude wasnt tryin to threadjack u jsut had abot the same question

 

sbc, you should be looking at a t25 to t28 turbo. t25 should get u around 200 or so, and t28 about 250. these are give or take, depending on tune. now singleslamma you should be looking at the t3/t4 turbo. should be able to push around 300 w/ a good tune. and honestly anything more than that is not really necessary. both you guys should do a lot more research before you guys start attempting this. it will only help you guys out more.

 

Moving to the KA Section


singleslamma: @ 9.0:1 C/R and Forged internals it should be able to take 17psi with 92+ Oct. and a good tune. 17psi is still kind of safe. You may be able to squeeze 18 or even 19psi but your kind of pushing the limits right there. 17psi is the most I would run. Now if you have access to E85, shit I'd throw 20psi at it ALL DAY LONG.....

sbc570sx: For 200-250 sounds like the only turbo you need is either a T28 or if you feel you might want a little more when you get used to the 250 the S15 T28R can support up to 300whp so that may be something you should look into. The S15 T28R's can be had new for around $650-700.

 

so how much psi would i need to get to 300hp? with the same explination.

 

That is ultimately dependent on the Turbo and how much it flows. Psi is a general rule of 8-10whp per psi. But ultimately its how much the turbo will flow. 1lb/min is = ~10hp. So you'd need a turbo that can flow 30lb/min. A GT28RS will have no problem doing that. They max out around 320hp. That is also one of the if not the fastest spoiling turbo for that power range.

 

what the trim on gt28rs?

 

60 i believe..
gt2860RS (someone correct me if im wrong)


whilst we are on the boost topic...
would getting my ECU chipped be more practical than buying a standalone fuel controller?

 

IDK if is call it a 60 trim. It's got a 60mm comp wheel yes. Trim AFAIK is only used when referee to the T3/T4 hybrids such as a 50, 57 trim etc.

 

so what turbo can give me more power at less psi ?

 

another question... what cc injectors will i have to get for 350hp

 

my engine calculator says 689cc for a turbo motor @ 350h/p, and 574 for n/a @ 350h/p... not sure how exact that is. but it gives you a range....

i was planning to buy some 450-500cc's to run 225-250hp. so i dont need to max out the duty cycle on the injectors.

 

Anything that's decently bigger. A 2876R would. A 3071R would. A 35R would. Lol.
Your motor will also need to rev higher to take advantage of the extra flow/power.

 

might as well get some 700cc then huh

 

would give you room to turn it up a little in the future :flamers

 

Injector Info: (BSFC = .5 | Duty Cycle = 87%) 90% Is considered Safe MAX but I prefer to stay below/away from it.

270cc Inj. = 180whp Max (Stock KA Injectors)
370cc Inj. = 245whp Max (Stock S13/S14 SR Injectors)
390cc Inj. = 260whp Max (Stock S2k Injectors)
440cc Inj. = 290whp Max
480cc Inj. = 320whp Max (Stock S15 SR Injectors)
500cc Inj. = 330whp Max (Stock GC8 Injectors)
550cc Inj. = 365whp Max
740cc Inj. = 490whp Max
850cc Inj. = 560whp Max



A post I made a while ago.

 

yae thank you guys

 

I dont think anyone adresed your question on tuning... chipping is easyier and less involvoed but you have to get a whole nother chip if you needed to change the tuning. requires you to solder your ecu too which is risky (one wrong move and you burn the circuit board). it is MUCH safer running a SAFC or some sort of standalone. with a SAFC you can use a laptop ( with the right sofware) to change the ecu's programming in realtime.

in short go with a standalone system!!! may break the bank but worth it!

 

how much is safc? and that can be installed on a stock ecu?

 

Used they can be had for ~$200 there ok. Not the best thing in the world but does a decent job for low boost (wouldn't do more than 8psi with it as you risk having too much timing and blowing it up).

IMO is get a Nistune. IIRC they have a SOHC board that allows real time tuning so no need to keep switching chips. Also they offer service to install the board so you won't have to worry about that.

 

youll need a u12 ecu to tune with nistune i think right??