LamboClone - The Premier Site for Lamborghini Replica Builders
How To - Tips => Engine & Transmission => Topic started by: ProjectX on October 01, 2015, 07:03:26 PM
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Hi
I was wondering if you could please help me.
im building a a diablo roadster and i have a bmw v12 1999 engine , my question are;
1) what type of radiators would i need 3 core or 2 core? and also if somebody can show me brand name and configuration to connected at the back
( i can't seem to find two opposite radiators to have in out right and in out left )
2) i need accelerator pedal and im not sure what dose it look like and what connections do i need to plug it in.
There are few more questions i have however those are the important one for now.
Thank you so much for any help or tips its highly appreciated thank you
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I would suggest get the best radiators and electric fans you can get. I run 2- 3 core Griffen rads with Spal fans. I have a turbo LS motor that puts off a little more heat so I also have a 3rd rad (really a heat exchanger for intercoolers) between my engine and the rear cabin firewall. It runs off my engine heater ports during the summer months.
The image below is a sbc but its give you an idea on how you can run it. Some run their coolant lines in a parallel setup (like below) while others have done 2 in 1 return type of setup.
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Hi
I was wondering if you could please help me.
im building a a diablo roadster and i have a bmw v12 1999 engine , my question are;
1) what type of radiators would i need 3 core or 2 core? and also if somebody can show me brand name and configuration to connected at the back
( i can't seem to find two opposite radiators to have in out right and in out left )
2) i need accelerator pedal and im not sure what dose it look like and what connections do i need to plug it in.
There are few more questions i have however those are the important one for now.
Thank you so much for any help or tips its highly appreciated thank you
As far as the accelerator pedal, are you using the BMW's V12 DBW dual throttle bodies setup if so what engine mangement are you using?
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Hi Thank you so much for the info i really appreciated :)
Q) "As far as the accelerator pedal, are you using the BMW's V12 DBW dual throttle bodies setup if so what engine mangement are you using?"[/i]
A) Im using the normal , i got the whole engine and parts with the ECU's and wiring fuel pumps ect however i didn't realize that its using electronic accelerator pedal im not even shore where that gets plugged in.... ive seen two types so far one looks more mechanical with side accelerator and other one is just a plastic pedal with a piston in between.
Thank you for the pic it shows really clearly how to set it up , im having a bit of problems finding the radiator with the same dimensions( around 450mm x 450mm or around 18inch via 18inch) 3 core that has one side in/out left and other side in/out right same as in the pic , i can usually only find one sided in and out.
I will double check Griffin again maybe i will get lucky however if you have a link where you got yours from that would be appreciated .
Ps regarding the pedal im not sure which one i need as there are two types im pics below
Again i really appreciate the help and information thank you
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This is a list of the stuff you need to save http://www.kitcentral.com/index.php?name=PNphpBB2&file=viewtopic&t=7321&sid=6021a3f3d0dc2bb84f8a2b959d3eaf13 (http://www.kitcentral.com/index.php?name=PNphpBB2&file=viewtopic&t=7321&sid=6021a3f3d0dc2bb84f8a2b959d3eaf13)
I would ask Jim Dinner over there he will know all about rads and computers etc best thing you could do is buy his detailed cd its a download best $50 I ever spent suits the m70 or download this pdf http://www.v12diablo.co.uk/resources/BMW%20V12%20Using%20OEM%20ECU%27s.pdf (http://www.v12diablo.co.uk/resources/BMW%20V12%20Using%20OEM%20ECU%27s.pdf)
lots on good info on simons pagehttp://www.v12diablo.co.uk/
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Thank you again for the reply and thank you for that info its funny you mentioned that i actually did have a look at that link and its really helpful i actually did send email to Jim Dinner however still no reply as per below im not sure if he has another email address :( you are so lucky you got the actually cd! i hope he will reply back to me so i can buy it.
"09/24/2015 09:20 AM
To:
This message was sent with High importance.
Hi
I understand you are busy however i was wondering if you could spare few minutes to help me out , im building a Lamborghini replica on tube chassis and using 1998 bmw v12 750IL with audi gearbox
My questions is
1) what type of radiators were you using ? were they 2 core 3 core and with side in/out serial or parallel and what brand ?
2) if your build cd is also showing the rewire of the engine ect and what would be the best way to buy it ?
Any help would be highly appreciated "
I will try to find out another way to contact him and try to figure this out :(
Again i really appreciated you help and if anybody else is able to place any info would be appreciated.
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Jim had his rads custom build. not using fly by wire pedal, I thing he mods the throttle for mechanical, It's been a while since I've seen , I could be wrong
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I can not comment on the reworking of the BMW v12's ecu's other than it almost seems more trouble than its worth. I have a BMW 850 and from looking at the wiring on that car there is no way I would use the factory BMW harness for a swap.
I would go with a stand alone like Megasquirt, and use cable driven throttle bodies.
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Oh yeah Jims switch the brain for aftermarket
You can follow on Kitcentral in engine 10
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From the picture you posted - with the brake pedal , all that there is in that photo is the throttle lever which pivots between the floor mounted pedal and the potentiometer - which is what you require.
The potentiometer is mounted onto the brake pedal housing , but is missing in that photo.
The part designated R10 looks like this....
:)
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A 1999 engine must be an M73 , so you will also require ...
Ignition Key Transponder Reader
EWS Immobiliser Module
IKE Instrument Pack
LCM Light Control Module
ETS Battery Control Module - not essential
Throttle Potentiometer
Fuel Pump Relay
Fuel Pump & Senders
Starter Motor Relay
ABS ECU [ For Speedo , DSC etc ]
LCM Module
Steering Angle Sensor (Steering Column)
DME ecu's . 1 & 2
EML ecu
This enables the engine to run.
and then .. :-\
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Radiators...I'm using two of them in parallel.
They are supposedly cooling-off an Audi ABZ V8, but the fans never start because the radiators are just too darn efficient...which is a good problem to have. ::headbang
At any rate, my rads are aftermarket aluminum 3-core (3 row actually) "racing" rads for a Honda Del Sol...and for what they are, they are dirt-cheap on Ebay.
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Hi Guys
Thank you so much for the information it really helps
Looks like it will not be as simple as i thought it would be...
However knowing the extra things i would need to get helps allot.
I had a look at Megasquirt and to use cable driven throttle bodies might be a bit out of my price range but i will keep that as a plan B :)
If anybody has any more tips or things i should be looking for please fell free to give your advice
Ps dose anybody know where i could get the replica fiberglass engine cover that shows " Lamborghini V12 5.7L valve timing management with the engine firing order ?"
Again i really apreciate the help
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Also few more questions
What type of exhaust muffler would you guys recommend to pair with the bmw v12 engine to sound more exotic ?, would you recommend buying original diablo muffler ect and pair it with engine would that give me the sound close to original ? or would you recommend going straight through cat ect ?
Also if anybody knows where to get bolt on exhaust manifolds or would you recommend getting them custom made ?
Again thank you for your help
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note - this my opinion~
Getting a good engine management system is vital to getting a BMW v12 running right. It can be done but is going to require a ton work, not only in the wiring but getting it running/tuned right when its swapped. Although it appears that the Megasquirt is costly it really isnt compared to trying to get the factory ecu's working correctly. Personally I wouldnt even consider trying to use the factory ecu's if I was swapping a bmw v12.
As far as the BMW V12's sound- As I mentioned before I have BMW 850i and sadly it doesnt sound exotic like the Lambo v12 even with an custom exhaust. Putting on a Lambo muffler isnt going to change pulse sound your wanting. Your going to be stuck with a sound between a Fiero and a Chevy V6 with glasspacks. You can get a decent sound out of them but nothing thats going to be truly representative of a high end exotic v12. You could spend a large amount of money and try to build some 180 degree type/style header that might end up changing the pulse. But again its going to be pretty big investment with no guaranty of it producing what you want.
Sorry I dont have better news, my advice= keep the exhaust simple and spend the money else where.
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The exhaust can make a huge difference if you know what your about look what happened to a boring old merc m120 v12 after a new system was fitted http://thegarage.jalopnik.com/how-to-make-a-used-mercedes-sound-like-a-pagani-zonda-1611782156 (http://thegarage.jalopnik.com/how-to-make-a-used-mercedes-sound-like-a-pagani-zonda-1611782156)
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I think the bmw 12 sounds pretty good
http://www.ultimav12.ca/videos/mvi_0417.avi (http://www.ultimav12.ca/videos/mvi_0417.avi)
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=5&cad=rja&uact=8&sqi=2&ved=0CCoQtwIwBGoVChMI7bf1sqiuyAIViJqACh2i1APM&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dx31KyRZLR7c&usg=AFQjCNG6UGXnCYDgIxaqq_3mgrROpjsayw&sig2=tl0Y9II2ctPVrTQgEHr1EQ&bvm=bv.104317490,d.eXY (http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=5&cad=rja&uact=8&sqi=2&ved=0CCoQtwIwBGoVChMI7bf1sqiuyAIViJqACh2i1APM&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3Dx31KyRZLR7c&usg=AFQjCNG6UGXnCYDgIxaqq_3mgrROpjsayw&sig2=tl0Y9II2ctPVrTQgEHr1EQ&bvm=bv.104317490,d.eXY)
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=6&cad=rja&uact=8&sqi=2&ved=0CDAQtwIwBWoVChMI7bf1sqiuyAIViJqACh2i1APM&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DMx2JzTHSzUc&usg=AFQjCNHR7X9I1eFAQKOiktApqnGWRy_4uA&sig2=VicWyUcMRaLk2FkwK7aEZw&bvm=bv.104317490,d.eXY (http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=6&cad=rja&uact=8&sqi=2&ved=0CDAQtwIwBWoVChMI7bf1sqiuyAIViJqACh2i1APM&url=http%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DMx2JzTHSzUc&usg=AFQjCNHR7X9I1eFAQKOiktApqnGWRy_4uA&sig2=VicWyUcMRaLk2FkwK7aEZw&bvm=bv.104317490,d.eXY)
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Hi AdrianBurton thank you for the video that sounds AMAZING and also NOW this is interesting
in the second video you can hear them talking and the camera guy says " so those are mufflers and those are resonators " and the guy replies " yhea those are motorcycle one"
that's interesting to place four motorcycle resonators and its something to be considered actually :)
PS dose anybody know where i can buy a replica fiberglass engine cover that shows " Lamborghini V12 5.7L valve timing management with the engine firing order ?"
PS thank you tonypaul for your advice i would need to research more about the Megasquirt so you have it in your v12? how hard was it to set it up and did u need buy anything extra ?
LOL yhea i was thinking of building the 180 degree exhaust .
Hmmmm 180 degree exhaust + varex muffler + motorcycle resonators.... }:)
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Im running an 034Motorsports computer in my car. It supports Fuel and Ignition for anything from a 4 Cylinder to a 16 cylinder engine. It's not cheap, but it comes all put together and it's easy to use.
That engine cover you are looking for. Forget it, at least for now.
One thing we have ALL noticed, is the number of unfinished kits for sale that people have slobbered through, they have everything (Radio, wheels, badges and even the "Lamborghini valve stem caps") except a working car. Don't be that guy. Get your car running and driving first, then worry about the fluff. And if you are going to do a V12 project, use a custom chassis and not some chopped-up Fiero mess.
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I have a Megasquirt on my turbo LS/5.3 thats in my Diablo Roadster, my 850i still has the factory ECU's.
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Thank you for the advice , don't worry i wont have unfinished project as this is my dream car :) the car is getting to be nearly finished its only the engine side im trying to figure out hence the help i need and thank you for all of your inputs.
and i had another look and found out the engine is from 1998 750iL e38 and not 1999 as i thought sorry about that.
The chassis is actually tubular chassis exact to the size allot of work has already been done its just this engine getting parts i need to fire it up and then link it to the audi gearbox and drop it in.
Thank you all again for your help and inputs please fell free to give me more advice, tips and your thoughts it helps
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MMBRAZIL sells the engine covers
http://www.scuderiamarinelli.com.br/Engine%20cover.html (http://www.scuderiamarinelli.com.br/Engine%20cover.html)
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do yourself a favor and go aftermarket for engine management, while you could get the OE stuff to work it is a lot more to keep it right, in my opinion. Even Jim Dinner replaced his with Haltec.
And when it comes to the exhaust 4 groups of 3 or 2 groups of 6 (on the same side of the engine) give you the perfect exhaust phasing for the 12