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View Full Version : Power Mods injectors for 500hp



lsi-crvtec
09-30-2007, 06:13 PM
What size injectors are good for 500hp to the wheels its a ls-vtec....my friend was telling me that 720cc are good for that

xbn83
09-30-2007, 06:14 PM
http://www.rceng.com/technical.aspx

lsi-crvtec
09-30-2007, 08:01 PM
thank but i didnt really understand that chart

Tree
09-30-2007, 08:14 PM
get some 550cc

KPowerEP3
09-30-2007, 08:27 PM
there are variables here.
I'm guessing you're going boosted, so what size turbo? How's it being tuned? Are you trying to use stock fuel pump[hope not] or are you planning on upgrading? If so, what pump do you plan on using? What compression do you plan on running? We basically need to know every detail of your engine to help you determine correct injector sizing, because contrary to what most people will tell you, there's not a 'one size fits all' for a given HP level.



get some 550cc

Bad idea. 550s will NOT fuel enough, I'm at ~80%DC on mine right now in the mid 300's on a 2.0L engine.

Tree
09-30-2007, 09:11 PM
ok ok 750

AnclyT
09-30-2007, 10:39 PM
why not just get 1000cc injectors and not worry about anything now or later?

patrick4588
10-01-2007, 01:06 AM
i vote for 1000cc.

RX4BRDM
10-01-2007, 01:13 AM
why not just get 1000cc injectors and not worry about anything now or later?
I agree unless you are worried about an injector driver given they may not be saturated. Peak and hold style.

lsi-crvtec
10-01-2007, 07:27 AM
thanx guyz...i think ill go with the 1000cc

KPowerEP3
10-01-2007, 07:51 AM
I agree unless you are worried about an injector driver given they may not be saturated. Peak and hold style.

Most aftermarket injectors are. Resistor box is easy to wire up.

B18c1Turboed
10-01-2007, 08:59 AM
I vote for 1600s. When i first started turboing my car i had 450 then i wanted more power, i went too 880, then i wanted more i went too 1000, then i wanted a hell of alot more then i got 1600s.So you se the pattern once u start your always going to want more, so start big!!! hahaha

Vuongy_Dong
10-01-2007, 09:30 AM
^^^^ but we are not as rich as you! lol

anothaRRR
10-01-2007, 11:11 AM
I vote for 1600s. When i first started turboing my car i had 450 then i wanted more power, i went too 880, then i wanted more i went too 1000, then i wanted a hell of alot more then i got 1600s.So you se the pattern once u start your always going to want more, so start big!!! hahaha
LOL, thats exactly what happened to me started with 450, to 550, to 880, to 950, to 1000, to 1600....
I would at least get some 880's....You dont wanna get a small injector and have to run higher fuel pressure just to make up for the difference...

AnthonyF
10-01-2007, 12:25 PM
why not just get 1000cc injectors and not worry about anything now or later?

bigger is better

SPOOLIN
10-03-2007, 08:51 AM
1000 sounds good for what you are doing. Either way a set of injectors will cost the same. Hell do 1200, they finally dropped the price of those.

GAtegs
10-15-2007, 05:37 PM
I think 750ss's should do just fine.