Can 460 injectors really handle 250HP? ("stock turbo" N/A with standalone)
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Can 460 injectors really handle 250HP? ("stock turbo" N/A with standalone)
As the headline implies, i'm in the midsts of aquiring parts for the turboing of my NA.. I have heard all of my time on this board that "NA injectors are good for 250HP!!" every time someone mentions upgrading..
So: Are they REALLY good for 250HP? My setup will be a stock turbo, with a FMIC, rather unrestricted exhaust, a good cone intake, and a megasquirt. I will of course be monitorig with a wideband 02. My goal is to just make the 250 HP mark, cause I don't want to upgrade my tranny/diff until the end of this season (I don't think i'll have time to source one until then).
Can it be done, or should I be including a set of injectors in my shopping list?
Thanks
So: Are they REALLY good for 250HP? My setup will be a stock turbo, with a FMIC, rather unrestricted exhaust, a good cone intake, and a megasquirt. I will of course be monitorig with a wideband 02. My goal is to just make the 250 HP mark, cause I don't want to upgrade my tranny/diff until the end of this season (I don't think i'll have time to source one until then).
Can it be done, or should I be including a set of injectors in my shopping list?
Thanks
#2
Rotary Freak
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RC engineering has a great site with the info you need. You can enter the duty cycle + # of injectors by the size and they will tell you the #HP the fuel will support.
Here is the link.....your welcome Bro......
http://www.rceng.com/technical.htm
Here is the link.....your welcome Bro......
http://www.rceng.com/technical.htm
Last edited by socalrotor; 03-03-06 at 06:38 PM.
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Passing life by
They wont even suport 250 at the flywheel. Boost tends to like fuel just how it is. I was making around 270 and aparently runing lean with 4x550's on stock FPR with FD pump.
Last edited by iceblue; 03-03-06 at 06:58 PM.
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I did the math once and they top out at almost exactly 250 flywheel HP at full duty cycle. A turbo motor woud have a much higher bsfc tho so i would say it wouldnt even be safe for stock T2 power levels.
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Originally Posted by socalrotor
RC engineering has a great site with the info you need. You can enter the duty cycle + # of injectors by the size and they will tell you the #HP the fuel will support.
Here is the link.....your welcome Bro......
http://www.rceng.com/technical.htm
Here is the link.....your welcome Bro......
http://www.rceng.com/technical.htm
Although a the numbers match what scathcart is saying, It appears that it's bloody close.. I think i'll source a set of 550s/720s or something of the sort, with an adjustable FPR to deal with it. Better safe than sorry, especially cause that link says that If I hit anywhere near 250 at the wheels (bye bye, driveline!), I'll need the equivalent of 4 580s...
Thanks for all the info and opinions, guys.
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Don't forget that you NEED a BSFC to calculate how much HP you can get from your injectors. I find a number between .65-70 tends to be appropriate for most rotary vehicles.
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Originally Posted by SonicRaT
Don't forget that you NEED a BSFC to calculate how much HP you can get from your injectors. I find a number between .65-70 tends to be appropriate for most rotary vehicles.
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Well, a ported engine that's built well will usually run around .55-60, stock ports are common to be around .65, so I usually use .65-70 to give me a worse case scenario.
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