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Discussion Starter · #1 ·
that DOESN'T cost $3000 like the RSR/RB Racing kit?
well, i may have it.. looking for some specs. i have a kit in prototype form right now for the 7R. the only difference i have between the 7 and 11 is the throttle body spacing and size.

if anyone has any info on center-to-center intake port spacing and boot diameter, pass it on?
unless i find a local guy to toss me his bike for a weekend.

as for the kit, when it's all said and done i'll offer it for sale. probably lookin at $800, but i can't promise that price.. somewhere in that ballpark however. it'll already by dyno tested and tuned, and a turn-key package you put on in a day with all necessary stuff.

so.. 11 guys, gimme some feedback!! specs, AND if you're interested in it. if it blows up, i may have to step to a vendor membership on here, but it's worth it if i can make some people happy.

it WILL work for you turbo guys, too. the controller is adaptable to boost and
MAP based.
 

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Efi

This sounds interesting, however the current ECU's do not cater for mixture control as this is done by the Carbs. Please explain how you hook it up electronically, ( what wiring modifications are required ) where does it get it's injection timing from and how does it compute mixture etc. There are a lot of inputs required for fuel injection such as Throttle position sensor, Injection timing, Air temp, engine temp ( for cold start ), mixture control etc etc. I doubt that you can fit this all into $1000 - 00. A more exact description is required please.
 

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I'd throw $$ your way to help develop or buy a system. I look forward to more details. PM me if you want more from me. Thanks for sharing.
 

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This sounds interesting, however the current ECU's do not cater for mixture control as this is done by the Carbs. Please explain how you hook it up electronically, ( what wiring modifications are required ) where does it get it's injection timing from and how does it compute mixture etc. There are a lot of inputs required for fuel injection such as Throttle position sensor, Injection timing, Air temp, engine temp ( for cold start ), mixture control etc etc. I doubt that you can fit this all into $1000 - 00. A more exact description is required please.
I assure you he knows what he is doing. You don't offer this kind of thing without having something working.
 

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75mm-85mm-75mm I think

MegaSquirt/MicroSquirt plus GSXR1000 throttle bodies, plus Walbro GSL393 fuel pump, plus sensors is pretty easily done for less than $800. You could probably even throw in an Innovate LC-1 wideband O2 sensor and controller and still not hit $800.

And tuning software is free
 

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Discussion Starter · #9 · (Edited)
yup.. steell nailed it.

i would use a microsquirt ECU that i would map on the dyno with wideband, code it for open loop ( closed for boost) and basically build an entire kit for the bike that needs nothing but simply.. installed.


this is just a feeler.. i'm working on my own kit right now.. well, 3 of them. one is fully sequential, data logging an controls boost for my LSR bike with an MS3x ECU, and modified honda CBR1000RR TBs.

the other is semi sequential using a microsquirt kit on modified F4i throttle bodies.

the kit i think would be reasonable. i'm not trying to make a killing off it like RB racing was for $2500 a pop.. for $800 it's a steal in a way considering chances are i'll have to modify SOMETHING to just make it work, make a harness, i'll have to build and tune a prototype, log many hours on the dyno, tweak and perfect the coding and maps.. the software would be free. i'd probably have a CD in the package for the buyer to DL it to their laptop.

as far as the harness, i'd try to make it to where it plugged into the factory CDI socket and used that crank signal to do work. it MAY have to come with a modified trigger wheel as well..
again, i haven't even prototyped one for my 7R out yet 100% i am still in the building stages.. but i figured while i'm doing it, why not see if it's a marketable thing. ALOT of 7R guys are jumping on this.. if i can make enough to squeak by, finish my turbo build, buy my flowbench and purchase fellatio from a crackhead prostitute, i'll be happy.



as for all the technical details, i have found that honda TBs are thermohydraulic. (well, yamaha is too)
that cuts out cold mapping for choked starts. the TBs do the work. triggering is semi sequential and only needs a crank signal. no cam for a sync. fuel is batch fired and wasted spark is retained. if the system was fully sequential, then a cam and crank sensor are needed. all the TBs have TPS, and the ECU is MAP based so it'll pull a 0-5V signal off that to reference port pressure in conjunction with TPS and meter fuel that way. in open loop, it's all on the mapping. in closed loop, the O2 sensor shoots for λ (stoich).
i have to get my hands on an 11 and play around with some things. if the gsxr TBs drop on with no mods, then that helps alot. as does if the busa shit drops on.




 

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****** heres a tip. Don't use map based accel. Use TPS based. Map has a lot of lag and dead spots. Trust me I know. Use the TPS and set your accel enrichment to comp for the dead spot. I've been running this ECU for 5 years and know it's quirks.
 

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Many bikes are using hybrid AlphaN/Map configuration, AlphaN for starting and low rpm transitioning to Map at higher rpm/load. AlphaN is TPS based.

TPS based accel imho is pretty much required, map goes to zero as soon as the throttle is cracked.

GSXR throttle bodies must be respaced, Hayabusa is the same spacing as GSXR.
Yamaha FJ1300 are closer in spacing, but don't fit in the manifolds, you'd have to make adapters for them.

ZX10Bud sells a kit containing a toothed wheel (that uses a stock pickup), a spacer adapter to bolt a cam position sensor on the valve cover, and a trigger wheel to bolt on the cam (requires machining cam). With a MegaSquirt I believe you can trigger right off a cam lobe and do away with the cam trigger wheel.
 

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Efi

Hell for less than $1000 -00 I will grab one as soon as you have perfected it. Confirm it would work on a C model ZZR1100. As long as I dont have to start removing cams / opening the engine etc. If its "plug and play" you have my order.:clap
 

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right steell. I'm talking about the acceleration though. Lots of guys with Neons that have MS on their cars would use map based and couldnt figure out why they had a hesitation or lag in the accel..
 

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I would be interested. I do have a question so u weld a bung in the exhaust to run your o2 sensor cause that's a must to take advantage of efi. The ram air would that still play a part. Sense the carbs work off pressure n vacuum could you go to straight pods with efi.
 

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I would be interested. I do have a question so u weld a bung in the exhaust to run your o2 sensor cause that's a must to take advantage of efi. The ram air would that still play a part. Sense the carbs work off pressure n vacuum could you go to straight pods with efi.
You could give up the ram air, but why would you want to?

Ram air is better with EFI :smile
 
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