550 injectors - what kind of whp can the handle?

[TBS]

Hello!

I bought a set of 550cc Siemens Injectors from Driftmotion. (because i currently have Venom 550's installed)

How mutch WHP can they make safely?

I also have a ct26-57trim from DM, but I'm going larger turbo next year and aiming for about 450-500 whp.
I'm wondering because if i need larger injectors i'm hoping to get the siemens injectors returned and buy larger ones.

Thanks, Tim

 

[airhead04]

Every car is different. So you wont get a good answer. Some people say 500 others say 3XX. So no definite answer here man. There are tons of these threads on here......

 

[hvyman]

If you dont go over 80% duty then 440 hp. Can get more out of them but its not reccomended. There enough for what ever you can get out of any ct.

 

[shipkiller]

I though you could go up to 90% duty cycle MAX and 50% min

440Bhp or 440whp?

 

[CajunKenny]

That would be a 'BHP' figure.

 

[MRSUPRA]

Depends.. I started going a little lean at 511rwhp.

 

[hvyman]

I though you could go up to 90% duty cycle MAX and 50% min

440Bhp or 440whp?

You can but it's not recommended. Better to play it safe with fuel. Plus if your already in the range for bigger ones it's basically the same price.

 

[raysupra]

On a Average.. The size of the injector is the Max hp it is capable of, Generally speaking.. so 550cc injectors are Capable of pushing 550hp. but does not mean your car is capable of it.. and when dealing with e85.. 35% of the cycle is loss due to more fuel being needed.. so maybe 375ish..
In your case.. look at 450 is doable but always build your system to not run a max duty.. you want a 450-500hp car.. you build it for 650. so a 62mm turbo and some 550cc's or 680ccs if you have a nice fuel computer and can detune them should hit your 500hp easy with supporting mods.. I'm shooting for 500 with my 550's and then switching to to e85 and high 1000cc injector combo down the road.

all your injectors sizing needs you could ever want.
http://www.supraforums.com/forum/showthread.php?564330-Injector-sizing-guide

 

[Nick M]

502 using the BFSC formula with a safe setting. Don't run them 90% or more.

 

[Zumtizzle]

~400 hp

 

[Mike Morris]

You can run 500 with a good pump.