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Underbody braces, turbos and more!

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PostPosted: Mon Sep 18, 2006 10:40 am 
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Location: Haarlem @ the Netherlands
Hi,i am Richard from the Netherlands and i've changed my MK3 from injection to carbs a vieuw weeks ago.
It runs,but i stil have some questions.

I saw this picture of the MK1 from Romery

http://www.wizardly.org/swifts/Romery/p ... G0035.html

And this from Wanye? @ the sticky topic.

http://www.wizardly.org/swifts/poruki/Mik4.jpg

On the MK1 the 4 plugs at the top of the carbs are connected and they go to.......?? (next to the screw at the top of the carb)
2nd pic the plugs are all wired up together?

Mine's are just seald/closed,but does anybody know why Romery did connect them from 4-2-1 till the manifold or ignition or?

Also at this pic of Romery.....

http://www.wizardly.org/swifts/Romery/p ... G0038.html

I saw that between the 1+2 and 3+4th carb,the plug is connected with a hose,and at the end of it there is a black bulb or a can or pod.
Isnt this normally on a bike for the fuel to flow to the tank again?
So are the black pods for the fueldamps to collect it or so?
And can i just seal/close them,or........?

Last question! (really!)
Normaly the ignition (where al the spark wires come together) is connected with a vacuum hose from the manifold.
Mine is stil open becouse i dont have a connection at the manifold to connect it with the ignition.
Is this handy to connect this becouse of a better spark in low revs when te carbs are closed,or should it make no difference when you not connect it?
Sorry for my sofar bad english.
Ill hope someone can give me some serius answeres,becouse il wil go on a dyno the day after tomorrow,and i want the best results.(offcourse :D)
Thanks allready.
Greetings

Richard

Here some pics

http://www.cardomain.com/ride/311033

And for a quick video. (made with my girlfriend :? )

http://www.ikinks.nl/project-swift/Rich ... _Carbs.wmv

_________________
Swift GTi running @ 0.8bar
http://www.cardomain.com/ride/311033

http://www.suzimaniacs.com/phpBB2/viewt ... sc&start=0


Last edited by Dr.Insane on Tue May 15, 2007 3:59 pm, edited 2 times in total.

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PostPosted: Mon Sep 18, 2006 4:27 pm 
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Location: Durham, UK
Hi Richard,

If it is mk1 engine, they come with vacume advanced distributor.
This is why you get 4 pipes connect to so call "ignition" like you said.
You see, your car and all of mk2 onwards cars come with ECU controlled dizzy as std..

Second question you are asking is breather pipes.

3rd question you are asking is... no.
Your car is mk3 so you don't have vacume advanced dizzy.

Good luck with your setup.

I have been told that you can run bike carbs without mk1 dizzy.
I think you will have check engine light coming on all the time though.

Cheers
Atchi


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PostPosted: Mon Sep 18, 2006 5:22 pm 
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Location: Haarlem @ the Netherlands
miniswift wrote:
Hi Richard,

If it is mk1 engine, they come with vacume advanced distributor.
This is why you get 4 pipes connect to so call "ignition" like you said.
You see, your car and all of mk2 onwards cars come with ECU controlled dizzy as std..

Second question you are asking is breather pipes.

3rd question you are asking is... no.
Your car is mk3 so you don't have vacume advanced dizzy.

Good luck with your setup.

I have been told that you can run bike carbs without mk1 dizzy.
I think you will have check engine light coming on all the time though.

Cheers
Atchi



Hi Atchi.

Thanks for the reply. ;)
I do have a MK1 distributor (and the engine runs "sofar good") and i also have the round thing (like an UFO) on it with a 4mm hose connection,to get an advanced or different timing when"for example" the carbs are closed,and the vacuum is high.
So i think this should be connected for the best result......or not?
And,from your post you'l say that the 4 connectors on top of the carbs are vacuum connections,and i can connect them to the MK1 distributor?
Or can i just split the hose that goes to the brake booster and connect that to the MK1 distributor??

Breather pipes..........just to not get any dirt or so in the hose connections!?
Thats it??
And can i just close them instead of connect it with breather pipes,or wil the pressure be to high than,so it wil leak fuel or so?

Yeah,i do have the check engine light on the whole time(check my movie!),but i dont think i can get it to go off,and also work at the same time!?
Also i didnt have a RPM counter/meter,but i fixed that,so this word great now. 8)

Ill hope that you(or someone) can answer this,of give some tips about my setup?
THX

Richard

_________________
Swift GTi running @ 0.8bar
http://www.cardomain.com/ride/311033

http://www.suzimaniacs.com/phpBB2/viewt ... sc&start=0


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PostPosted: Tue Sep 19, 2006 1:29 am 
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Location: Durham, UK
Hi Richard,

For vacume advanced dizzy to do it's work, I think vacume is greatest when your enigne is at high rev.
I think your car will perform much better with vacume connected to dizzy.
Also, you will need to have vacume connected to your servo assisted break master cylinder as well.
Without your MC connected to inlet manifold, you will have to use your right leg harder... then again it is only Siwft...:lol:.

I think breather pipe wise, you can close off, but you still have pipe coming off from cylinder head cover, is it not?
How about if you connect them to it?

Have you setted up your car on rolling road?
I think you will get more benefit from doing so and you should post print out here!

Cheers
Atchi


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PostPosted: Tue Sep 19, 2006 4:58 am 
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Location: Haarlem @ the Netherlands
miniswift wrote:
Hi Richard,

For vacume advanced dizzy to do it's work, I think vacume is greatest when your enigne is at high rev.
I think your car will perform much better with vacume connected to dizzy.
Also, you will need to have vacume connected to your servo assisted break master cylinder as well.
Without your MC connected to inlet manifold, you will have to use your right leg harder... then again it is only Siwft...:lol:.

I think breather pipe wise, you can close off, but you still have pipe coming off from cylinder head cover, is it not?
How about if you connect them to it?

Have you setted up your car on rolling road?
I think you will get more benefit from doing so and you should post print out here!

Cheers
Atchi



Atchi

So il connect the vacuum to the dizzy,but i wanned to make an xtra connector from the hose that goes to the brake master cylinder/booster,and connect that to the dizzy.
There is no oil in the hose so this must work and the brakes wil also work.
I've allready driven with the hose not connected but then you wil have no-brakes and a super hard pedal. :?
So that wil not work. :wink:

I want to close the connection to the breather pipes,but i wanne be shore that it isnt a problem if i do that??
But you say that is no problem,so ill do that. :D
Connect them to the cylinder head cover is not an option becouse there wil be a lot of oil inside the carbs and that wil stick to the carbs after a fieuw months/years.
So you must clean them or the air/fuel mixture isnt 100% becouse of the xtra oil,and it isnt not that good to setup the car.

The car is setted up in a place where they only do this kinda stuff.
BUT,it was not setted up on my Swift.
It also was a 1300CC GTi,but standard (except for the exhoust),and becouse i have port/polish and other cams(268in/268out/lift9.3) i think the carbs must be setup different,becouse of an other air/fuel mixture??
And i also have adjusted cam wheels.

Well i hope that the man where il be go on a dyno can see if the air/fuel mixture is good?
Tomorrow this wil be done......... 8)
Thanks.

Greets.

Richard

_________________
Swift GTi running @ 0.8bar
http://www.cardomain.com/ride/311033

http://www.suzimaniacs.com/phpBB2/viewt ... sc&start=0


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PostPosted: Tue Sep 19, 2006 1:02 pm 
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Location: Haarlem @ the Netherlands
I connected the hose of the brake master cylinder with a splitter to the vacuum of the distributor,and the car is now running idle 1400rpm?
So this shore does something,but i dont know what exaclty?
Do you know this Atchi or somebody else who knows this?

_________________
Swift GTi running @ 0.8bar
http://www.cardomain.com/ride/311033

http://www.suzimaniacs.com/phpBB2/viewt ... sc&start=0


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PostPosted: Wed Sep 20, 2006 5:24 am 
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Location: Durham, UK
Hi,

I remember when I used to set dizzy up with strobe light, you have to take vacume pipe off and fit golf tee to close it up.
Then adjust rpm to set engine timing.
When I have done that, fit vacume take off to dizzy.
Then I have adjusted idle speed.

Your brakes should work without vacume pipe connected, it will just make you to press break pedal harder.

Also, from your cylinder head breather pipe should have device for you engine oil to not going to your carbs.
You will be better off fitting filter to your breather to cylinder head bit.
Otherwise, you will have too much pressure inside engine as temperature rise and it will cause oil seal to break in the worst case.

Good luck with you rolling road session.

Cheers
Atchi


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PostPosted: Tue May 15, 2007 4:12 pm 
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Location: Haarlem @ the Netherlands
Sorry a bit late,but ive got the carbs finetuned and been on a dyno.
So thanks for all the info guys! :D
Sadly there is no HP inprovement (139HP @ krank),but they run great on the GTi.
From 1100rpm no nervouse engine anymore,so verry fine when you have a traffic stop and you must drive with 20km/u in 1st gear.

http://www.mijnalbum.nl/Album=GN3CTL4N

The next thing i want is an airbox,becouse the petrolfumes are irritating when you are waiting for the traffic lights.
And the carbs are a bit loud when riding on the highway.
So! does someone have some info about an airbox that fits on the mikuni carbs from the GSXR1100 (94)?
Or does someone have an internet site that sels parts to make your own airbox?
Thanks allready.
Greetings.

Richard

_________________
Swift GTi running @ 0.8bar
http://www.cardomain.com/ride/311033

http://www.suzimaniacs.com/phpBB2/viewt ... sc&start=0


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PostPosted: Fri May 18, 2007 2:47 pm 
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Location: Haarlem @ the Netherlands
Nobody?? :cry:

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Swift GTi running @ 0.8bar
http://www.cardomain.com/ride/311033

http://www.suzimaniacs.com/phpBB2/viewt ... sc&start=0


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PostPosted: Sat May 19, 2007 5:23 am 
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Joined: Wed Sep 29, 2004 4:07 am
Posts: 824
Location: Kildare, IRELAND.
Heres a few tips and tricks for carbs.
http://www.factorypro.com/tech/carbkei.html

http://www.400greybike.co.uk/Wksp-NC30EngineMods.asp

:wink:


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PostPosted: Wed May 23, 2007 5:40 am 
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G10 wrote:


Thanks for the info m8. :D

I ordered a 2nd hands airbox from a GSXR 750,and this must have the same size as a 1100 airbox.
So i am gonna modify this......
Only hope that i have enough space under the bonnet!? :roll:

Does anyone know if 75mm big enough for the intake than?? :?
I want to take fresh air from the front of the car then,so there is enough air speed.

Oh! i've also been on a dyno monday. (where ive been all the times)
And i was suprised to have a bit more hp @ 8100rpm i.s.o.7600rpm,but less nm??
But i am happy with it,and still the carbs drive verry fine. :D

http://www.mijnalbum.nl/Album=GN3CTL4N

_________________
Swift GTi running @ 0.8bar
http://www.cardomain.com/ride/311033

http://www.suzimaniacs.com/phpBB2/viewt ... sc&start=0


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PostPosted: Sun May 27, 2007 5:41 pm 
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Location: Durham, UK
Hi Richard,

Nice to see your car see running well.
So you have 140 Bhp@ crank.
In order to get this power, what mod did you carry out?
I will be using Lotus exige carbon fibre airbox for my setup.
I haven't been working on my car for nearly a year now.... :cry: .
House and family come first I'm afraid.

Let me know what your finding is..

Cheers
Atchi


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PostPosted: Sat Jun 02, 2007 3:42 pm 
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Ey Atchi

What mod i didn't do,you mean! :wink:
I allready did have 138hp and 137nm with the injection and chiptuning,and now 140hp and 131nm with the carbs.
I also have this mods:

Kent Cams 268 out and 268 inlet,lift 9.3mm
Cat Cams adjustable cam pulleys.
Lightened flywheel. (3.66kg i.s.o. 5.1kg)
Port + Polished head.
SuzukiRD alu underdrive single pulley
Magnecor Spark wires
Lucas Bobine/Distributor.
Jan-Speed 4-1 extractor/header.
Full Stainles steel exhoust.
Jap Style muffler.(modified)
Mikuni GSX-R 1100 Carbs
Stiffened the engine mounts.

The only thing not done is balancing the krankshaft and higher compression pistons.

Do you allready have the airbox from the lotus?
I saw it on internet,but i think its a bit expensive!?
And why from the Lotus?
Is it better or so?

I am not going further on modifying the airbox from the 750R,becouse there is too much to modify,and not having any space for installing the intake hose.
So a friend of my is making a aluminium airbox with an 76mm intake at the bottem and in the middle of the airbox becouse i dont want to have trouble with the last cilinder wich is getting less fresh air normally having with an airbox,becouse the intake is at the left or right of the airbox then.
I hope to have it soon. :D

Sadly you dont have enough time to work at your Swift but family goes first indeed.
Sometime there shall be time for it.
Just be patient.....

Quote:
Let me know what your finding is..


Eeehhh...from what exactly?

_________________
Swift GTi running @ 0.8bar
http://www.cardomain.com/ride/311033

http://www.suzimaniacs.com/phpBB2/viewt ... sc&start=0


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