01-01-2011, 06:25 PM #1
725cc or 1000cc injectors for 17-20 psi boost on SHO
What injectors are you running with 17-20 psi boost with ViPEC/Motec ECU on SHO ?
Reason i ask is i have heard that the 1000cc are overkill. Im talking 55 psi fuel pressure. Im getting ready to buy a set.
01-01-2011, 06:34 PM #2
This type of conversation has occured a few times for these injectors. From what I remember 1,000 cc injectors may be overkill, but you will not need larger ones. Ever... Unless we start making over 500hp.
The decision was made easier since the price is the same for 750cc or 1,000cc. Kind of a why not get the 1,000cc injectors?
So, if an owner only wants up to say 400 hp max, 750cc is plenty.
01-01-2011, 06:37 PM #3
01-01-2011, 06:40 PM #4
I can send Rob my data and go from there. I might just get the 1000cc's. Can always take fuel out.
01-01-2011, 09:54 PM #5
I went 1000cc on mine. Due to the cost. I didnt want to buy another set again. I leant this from my drag car days, buying 880cc (X6) - 1000cc (X6 then times eight) - 1750cc (times eight). I had alot of little paper weights laying around...LOL
Last edited by RichieFZR; 01-01-2011 at 09:55 PM. Reason: 8
01-01-2011, 09:57 PM #6
01-02-2011, 08:07 AM #7
- Join Date
- Nov 2010
What size is the engine ?
what mods do you have ?
what is your static CR
1000cc injectors are a bit big if you only going to do 500hp unless you are going to run E85
all the new style of injectors are way better now you do not need them that big
01-02-2011, 11:32 AM #8
- Join Date
- May 2007
01-02-2011, 11:46 AM #9
Most of those questions are answered just by knowing what ski is being discussed (in the Subject line) and having common knowledge of said ski. We don't make a habit of running what will get us by and running lean can cost some big bucks (relative) to fix these motors. Things change fast here and will continue doing so.
01-02-2011, 12:59 PM #10
Do not even waste your time with the 725's
Go straight to the 1000cc
ViPEC and MoTeC already have base maps for the 1000's so this makes things easy for you.
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