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Suzuki Swift Gti Engined Mini


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#1 iamcabaged

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Posted 13 January 2008 - 05:49 PM

Hi, Been building a swift gti engined mini for a while now but should be near completion!! Here is the engine and car spec and a few pics.

Engine spec
swift gti engine
suzuki gsxr 1000 quad throttle bodies with itg air filter
custom inlet manifold (cast at home)
megasuirt ecu
edis 4 ignition system
wide band lamda sensor
custom subframe
splines cut on mini driveshafts with CNC machine
custom exhaust
mpi tank
2 core mini rad
standard brake servo

car spec
wheels 12x5 but may upgrade to 13x6
cobra bucket seats
red harness's
fibreglass dash
suzuki instruments

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#2 ed4ran

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Posted 13 January 2008 - 06:59 PM

Glad you could join Pete :crazy:

#3 Bungle

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Posted 13 January 2008 - 07:11 PM

i think i have seen one like that before :crazy:

#4 iamcabaged

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Posted 13 January 2008 - 07:41 PM

The Suzuki section was a bit dead on the 16vforum so I thought I would join this one and maybe offer some advice to potential swift builders. Still got alot too do and having a dissertation to write doesn't help!
by the way Ed..have got any pics or diagrams of James's fuel system setup? trying to sort out where to put the idle control solenoid on the throttle bodies!

#5 Rhys

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Posted 14 January 2008 - 07:32 PM

I really want to do this conversion i just dont have the engineering skills yet, but i will do one day!!

Rhys

#6 iamcabaged

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Posted 15 January 2008 - 10:21 PM

If you get a subframe and driveshafts off the 16vminishop it isn't too hard to do with basic knowledge. But it is a bit expensive! Ive made my own subframe and driveshafts...plus i'm running throttle bodies, edis and megasquirt which make it 100 times more difficult :s But I also have the help of my dad, who has a bit of an engineering background.

p.s If anyone needs driveshafts...we are able to cut suzuki splines on mini driveshafts with the aid of a cnc machine and might even be able top do vauxhall or vtec buit not untill project is on the road.

Edited by iamcabaged, 15 January 2008 - 10:22 PM.


#7 ed4ran

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Posted 16 January 2008 - 06:52 PM

No pics sorry, but it is simple enough,

fuel from pump goes to the large pipe on rail, medium is return and small needs to go to the ITBs after the butterflies, (where it will get vacuum)

For the idle solenoid one air pipe goes before the throttle bodies, but after the filter so its clean air, the other goes after the butterfly on all the ITBs so each gets more idle air.

Can draw pics if you need any more info :D

#8 Sam Walters

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Posted 16 January 2008 - 09:00 PM

p.s If anyone needs driveshafts...we are able to cut suzuki splines on mini driveshafts with the aid of a cnc machine and might even be able top do vauxhall or vtec buit not untill project is on the road.


nice project, just a little question though, dont the drive shafts need to to be diffrent lenghs to the minis ones? and the drive shafts would have to be shortened to suit each application if they are useing a custom frame. however...

however, all ive seen is where they are in this car. however this one sits a little lower down but from the wing lip there isent much diffrence.

nice project, might be an idea for a swift engine if i cant stomac the cost of the 970 engine i plan to build.

#9 iamcabaged

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Posted 16 January 2008 - 10:57 PM

Thanks ed...think its sorted now..just having problems with the vacuum take off for the servo.

flyinggears2002 - we put the engine in the position where the driveshafts are the same length, the Suzuki engine has an intermediate support bearing on the tight hand driveshaft with a CV joint....so it all worked out fine. we cut them from standard mini driveshafts and there is plenty of metal to cut them long and short if needed. We can put the splines on at the required length and all that needs doing then is putting the slots in for the circlips and cutting them down to the right length.

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cheers

#10 iamcabaged

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Posted 16 January 2008 - 11:00 PM

splines

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home made cnc machine

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#11 [email protected]

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Posted 16 January 2008 - 11:50 PM

thats impressive....

#12 spiyda

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Posted 17 January 2008 - 01:46 AM

No pics sorry, but it is simple enough,

fuel from pump goes to the large pipe on rail, medium is return and small needs to go to the ITBs after the butterflies, (where it will get vacuum)

For the idle solenoid one air pipe goes before the throttle bodies, but after the filter so its clean air, the other goes after the butterfly on all the ITBs so each gets more idle air.

Can draw pics if you need any more info :)


Ed,

That sounds fine, I'm not sure yet where to connect the idle, If I put it into the old Yamaha injector positions, I can make a manifold up for it. That leaves the original 4 vacuum connections on the TBs for the Megasquirt connection. I can then cut a thread in the manifold for the Servo connection. I'm a bit concerned that with the brake servo coming off no 1 and the Megasquirt coming off all 4 that the servo vacuum will affect the megasquirt... does it need non-return valves in there somewhere ? Or doesn't
The alternative would be to take the Servo off No 1 and the Megasquirt off No4 only, with non-return valves in the idle connection. Its all a bit of a puzzle

FYI
I looked at the setup for the injectors in more detail, the resistance of the standard Suzuki injectors puts them right at the limit of what the megasquirt will run, I think we will put some resistors in series with the injectors, I have some 6.8 Ohm 10 watt, so doubling up that will give 3.2 Ohms 20 Watt or 2.3 Ohms 30 Watt with three for each injector.. If it runs OK with them in, it will help reduce the load on the output of the megasquirt.

We are leaving the double crankshft pulley on and welding the trigger wheel to the outside of that so that maybe (once the car has been driven for a while and if it's safe) we can use it to drive a supercharger, the ones fitted to the BMW Mini seem to be about the right size, and look as though they will fit above the current inlet manifold. We would have to drop the compression ratio, if we can't find the right pistons, we could CNC a spacer plate with two head gaskets.

Has anyone built a Minuki with a supercharger ?

so much to do and so little time... but making progress... Trigger wheel sensor on tomorrow :gimme:)


Chris (iamcabbaged's Dad)

Edited by spiyda, 17 January 2008 - 01:15 PM.


#13 ed4ran

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Posted 22 January 2008 - 06:03 PM

I wouldnt stick the servo on just 1 cylinder, but connect all with a larger tube then its equal across the cylinders.
you should only need one non-return valve in the pipe to the servo, and having a large pipe between all inlets will help balance them (of not completely).

If you already have a V3 its not hard to add the flyback circuit, but the resistors should work to. I think the difference is PWM adds more control and better response for the injectors.

I know what you mean with the Bini charger, so much so that one came in the post last week :!: :thumbsup:

Ed

#14 Jammy

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Posted 22 January 2008 - 06:23 PM

Any plans to make that CNC machine!!!? :thumbsup:

#15 ed4ran

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Posted 22 January 2008 - 06:59 PM

I think its a mill converted to cnc, and then a multitool bolted to the side,
Im saving for a hobby mill then eventually ill convert it to CNC. :thumbsup:
but then i also want a new welder :!: so im just saving the pennies now.




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