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L24 EFI ITB installation...again!


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#21 Zedman240®

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Posted 02 September 2009 - 05:29 PM

That's looking excellent.. Probably the best place to put the injectors would be right next to the head like a 280ZX manifold. Next thing you will have to decide on is the fuel rail; how would it be held in place and bolted to? If you can get somebody to weld on the cast manifold, you should be able to devise a setup. That's why I chose those DCOE type throttle bodies....eliminates alot of stuffing around!

#22 Neuby

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Posted 02 September 2009 - 05:42 PM

Looking good rb30x!  How do all the ports line up?  You could go fully hectic British touring car style and put the injectors just outside the trumpets....mmmm atomisation!!!

Good point about the optical versus reluctor in picking up cylinder 1 Zedman.  What kind of performance are you hoping to achieve from the L24?

#23 RB30X

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Posted 02 September 2009 - 06:25 PM

Ports line up pretty good. I used a smaller hole saw so I could continue the taper of the port runner through the flange adaptor plate so it matches the throttle body bore.
I'll probably have to track down an L28 fuel rail or make my own.

Posted Image

I've love to buy the proper throttle bodies like you did Zedman but I'm too cheap ;D

#24 NZeder

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Posted 02 September 2009 - 07:24 PM

those adaptors of yours look good - I still have not heard from my cnc guy re the drawings of the ones I had made for going the other way around.

#25 RB30X

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Posted 02 September 2009 - 10:30 PM

Yeah they are just cut up from cheap alluminium. I'd like to get proper ones made though.

#26 Zedman240®

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Posted 02 September 2009 - 10:40 PM

Looking good rb30x!  How do all the ports line up?  You could go fully hectic British touring car style and put the injectors just outside the trumpets....mmmm atomisation!!!

Good point about the optical versus reluctor in picking up cylinder 1 Zedman.  What kind of performance are you hoping to achieve from the L24?


On the British touring cars, I think most of them ran staged injectors in front of the trumpets as well as the injectors in the manifold. When they used to rev to some stupid number, the second group of four injectors would come on to supply that extra amount of fuel needed. Heres a quick video of an F1 engine with what looks like staged injectors on the top firing at high revs.. Sounds a bit out of sync but you'll get it..



As for power out of the L24, by the time it's built, it will have around 2700 odd cc's and I'm hoping for around 140+Kw at the wheels. All will be revealed later after the dynoing with the good motor. For now it's just a standard L24.

#27 RB30X

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Posted 03 September 2009 - 09:35 AM

I've been doing a bit of research into injector placement, and throttle valve placement and inlet runner length etc. This is a good read if you have time.


#28 Zedman240®

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Posted 09 September 2009 - 09:29 PM

Finally had some success tonight. Got the L24 started! Couldn't run it for too long as the neighbours won't really like the open headers! Had to lock the timing in the ECU to 10' and play with the distributor. Tomorrow I'll play with it some more and take a video of it all. Next thing is to figure out how to set it all up properly; the distributor isn't sitting in the best place.

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#29 RB30X

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Posted 10 September 2009 - 07:12 AM

Ahem......youtube vid????

#30 Zedman240®

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Posted 12 September 2009 - 08:17 PM

No youtube vid as yet but for now I'm happy to have wheels and tyres (BIG thanks to Laurence "Lgee") who fixed me up with some Dunlop semi's and fitted them to the 16x8's so now I can at least wheel it out of the garage. Fixed a small water leak and a leaky oil pressure sender in the meantime. Still waiting for Ron (HybridZ member) to modify my fuel/ignition map to get it running better than it is so I can get the exhaust fitted!

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#31 Neuby

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Posted 15 September 2009 - 08:52 PM

Hows it going now?  I love the BRE front spoiler!



#32 Zedman240®

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Posted 15 September 2009 - 10:34 PM

Hows it going now?  I love the BRE front spoiler!


Thanks for that.. It's crawling along for the moment... need to make a plate to match the headers where they end for the exhaust system. Went to a laser cutting place and got a quote for $140 to cut one out of 8mm plate. A place we supply hardware to can laser cut steel to 6mm so I'll ask them if they can do it for $0. You never know! After I get the exhaust hooked up, I can play with the ECU. Running an engine with straight out headers with infants in surrounding houses isn't a good idea. Youtube video will follow as all you will hear is distortion!

#33 Lightmaster240z

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Posted 15 September 2009 - 11:01 PM

I like the way you think when it come to the cost of things  ;D
regrads
Bruce

#34 gav240z

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Posted 15 September 2009 - 11:09 PM

What happened to the Simmons wheels? Looking good on the EFI setup.

#35 Zedman240®

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Posted 16 September 2009 - 08:35 AM

What happened to the Simmons wheels? Looking good on the EFI setup.

Gav, another member here bought all the wheels, suspension and brakes off me a while ago. When you see this zed, you'd swear it was mine! Same red etc..

#36 Zedman240®

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Posted 09 October 2009 - 05:54 PM

Well, another update.. got the engineering place to laser cut a flange for the extractors (made 3 of them for me :) ) for the measly cost of a slab of Wild Turkey and Coke! And booked in tomorrow for the hooking up of headers to rest of exhaust system. Also, got the engine fired up! with youtube video:



It's a bit of a b@#$rd when it's cold and even harder when you're holding a camera too. Starts and runs but really needs a good tune. Won't waste too much cash on this engine since the race motor will be going in later.
L28ET distributor works like a charm along with the Wolf ECU so I would recommend anyone going to EFI, to do this conversion too. I think MSD make a system so you can use carbs and get rid of your distributor as well.

#37 zzzzed

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Posted 09 October 2009 - 06:06 PM

very nice  ;)
I  have saved this page to my desk top for when i get to this point

#38 RB30X

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Posted 10 October 2009 - 12:15 PM

Ha, that looked painful with it stopping.....you get the idea. Increase the idle speed and try again. I want to hear it reeeeeeeeeeevvvvvvvvvv.

#39 Zedman240®

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Posted 10 October 2009 - 04:50 PM

Just finished playing with the ECU again, problem with the stalling was just a lean mixture on a cold start. This morning got the exhaust system connected so the garage windows won't rattle any more! The tacho needle used to bounce with the revving (and it isn't connected!!) Richened the mixture around idle and now it is heaps better. I'll whack on another video of it. Just need a notebook pc with a serial port and a friend to sit in the passenger seat to do some on road tuning.

Heres the video of it revving....just for you..



#40 RB30X

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Posted 11 October 2009 - 05:43 PM

Awesome, I feel real special.

Sounds really rattly though. I went through and adjusted all my valve train clearance when I dropped my L24 back in as it was rattley too, sounds a bit better now.

Can't wait for a dyno vid ;D




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