entropy
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posted December 21, 2008 11:31 PM
ping Y2K: fuel injectors
Hey Jim,
Tomorrow I am sending my RC-370's to Tim Marren for testing and comparison w/the 2 experimental sets he is making. I never called him, got busy at work 
Folks here may be interested in this experiment if it has gotten far enough.
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aliveagain
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posted December 22, 2008 03:15 AM
Are you talking about the place in Oxford?I grew up right down the road and had my injectors done there.
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Y2KZX12R
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posted December 22, 2008 04:56 AM
 Edited By: Y2KZX12R on 22 Dec 2008 13:01
Ok Karl, sounds good.
He just cleaned mine, so I have the #s on my 2000 injectors as well.
He may have the two sets done for us by now.
Pete, yea thats Tims place, Marren Fuel Injection. Do you still have the test sheet on your injectors?
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aliveagain
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posted December 22, 2008 09:28 AM
I'll look.
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psycho1122
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posted December 28, 2008 08:59 AM
What are you guys up to?!?! 
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entropy
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posted December 28, 2008 11:17 AM
quote:
What are you guys up to?!?!
Jim is ALWAYS up to something 
(i'm just riding on his coat tails)
He is pals with Tim Marren, injector guru (google Marren Motorsports); Tim & Jim are experimenting.
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Y2KZX12R
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posted December 30, 2008 04:54 PM
Were working on a more suitable replacement injector for zx12rs that need bigger injectors.
Thanks for your sheet Pete.
Stay tuned, well have more info shortly.
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rgeorge
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posted December 30, 2008 05:25 PM
Edited By: rgeorge on 31 Dec 2008 01:25
quote:
Were working on a more suitable replacement injector for zx12rs that need bigger injectors.
Thanks for your sheet Pete.
Stay tuned, well have more info shortly.
PM me more details if you can. I was about to order a set of RC440s
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entropy
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posted December 30, 2008 10:00 PM
Rob,
holy schitt,
440's must be for yr alcohol set up?
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rgeorge
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posted January 04, 2009 02:57 PM
Yup. The stock injectors have been running close to 100% with fuel at 60psi.
My engine is getting a bit more displacement this winter, so I'll need even more. :d
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entropy
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posted January 13, 2009 04:50 AM
hey Jim,
i got my cleaned rc370'S back from Tim Marren; very little difference before/after (apparently they were already clean. No comments about spray pattern other than "GOOD", or "OK" or somesuch.
He also measures flow at 6ms, which doesn't allow me to compare his results with RC's spec of 370???
Have you talked with him about how the RC's compare with his suggested injectors for our application?
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Y2KZX12R
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posted January 13, 2009 05:14 AM
Edited By: Y2KZX12R on 13 Jan 2009 13:20
Karl, I have the new injectors from Tim. The stockers with his test configuration flow 355cc/min and the new ones flow 440cc/min.
A 24% increase.
Yes we talked at length about the "RC" injectors and injectors in general. They are actually Lucas disc type injectors. Lucas went out of buisness and was bought by another company. RC doesnt manufacture injectors they rebadge. You can do some research into lucas disc injectors on the net....
Tim tests with the "fuels" SG and temp controlled. This keeps viscosities constant. His lab and equipment temp never varies by more than 1 degree and the test fluid temp doesnt vary.
Factory injectors for the 12r are Nippondenso and these are Bosch that have been machined to fit the fuel rail without any spacers etc.
You should call tim and discuss the "RC" vs the ones he just made for me. I'll let him go into it all. Hes the FI guy.
He makes injectors, fuel rails, regulators etc. for the Busas as well.
HTTP://WWW.INJECTOR.COM
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posted January 15, 2009 05:06 AM
Karl, did you get a set of these 440's from Tim?
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entropy
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posted January 15, 2009 05:17 AM
quote:
Karl, did you get a set of these 440's from Tim?
nope, did he send a set to me?
I will try em, and i i'll even PAY for em 
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Y2KZX12R
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posted January 15, 2009 08:47 AM
He made a set for me.... I thought he was going to make 2 sets... one for you also. Give him a call he may have a second set for you to try.
If not I can send you my set and I'll get the second set.
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aliveagain
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posted January 15, 2009 09:25 AM
How much as I'm getting up toward the limit.
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Y2KZX12R
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posted January 15, 2009 10:42 AM
Pete, they are $300 a set. They are Bosch not Lucas disc type.
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tcchin
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posted January 16, 2009 06:40 PM
Jim - I've been trying all week to get ahold of Tim about some higher-flow injectors for my race bike, and he hasn't returned any of my calls. Is there a secret passphrase I can use?
My fuel map is saturating my stock injectors and it's throwing FI error codes.
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osti33
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posted January 16, 2009 06:44 PM
Edited By: osti33 on 17 Jan 2009 02:45
quote:
Jim - I've been trying all week to get ahold of Tim about some higher-flow injectors for my race bike, and he hasn't returned any of my calls. Is there a secret passphrase I can use?
My fuel map is saturating my stock injectors and it's throwing FI error codes.
You have to know the secret handshake. No, seriously I have no idea.
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Y2KZX12R
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posted January 17, 2009 01:18 PM
Tim, I dunno. He may be on the road. Hes a very busy man, not that thats an excuse but...
I have a fresh set of zx12r injectors just cleaned and tested if they will help ya?
I have a few sets and dont need them, was going to put them on ebay.
Karl, Are you running a fuel rail damper? Are you seeing any needle bounce at any particular rpm?
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entropy
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posted January 17, 2009 04:39 PM
quote:
Tim, I dunno. He may be on the road. Hes a very busy man, not that thats an excuse but...
I have a fresh set of zx12r injectors just cleaned and tested if they will help ya?
I have a few sets and dont need them, was going to put them on ebay.
Karl, Are you running a fuel rail damper? Are you seeing any needle bounce at any particular rpm?
nope no rail damper, and i didn't notice any needle bounce when i had a fuel press gauge mounted.
I am running OEM injectors right now, cause Tim had my RC-370's when i built the motor
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Y2KZX12R
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posted January 19, 2009 04:17 AM
Karl, was that a mechanical guage?
Thats good news if the pulsations are minimal.
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entropy
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posted January 19, 2009 10:48 PM
quote:
Karl, was that a mechanical guage?
Thats good news if the pulsations are minimal.
yep, mechanical.
does that make a difference?
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posted January 20, 2009 11:55 AM
Edited By: Y2KZX12R on 20 Jan 2009 22:37
Non liquid filled mechanical gauges will show fine pulsations best.
Thanks, was just wondering.
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entropy
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posted January 20, 2009 01:25 PM
my gauges are non liq filled, but i never looked for fine pulsations.
Damn.
One of these days i'm gonna wake up and say, "wow! there's nothing to learn today"
But that day ain't gonna come anytime soon.
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