Author Topic: Bike carbs on a GTi???  (Read 1322 times)

Offline FirstMK2

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Bike carbs on a GTi???
« on: 16 January 2007, 22:34 »
Just joined the forum and been reading a few posts and have read about putting bike carbs on the Golfs! Where would you get a manifold and would there be any advantage over a k-jetronic injection system? Mine is a very very early MK2 with a MK3 2 litre fitted to the original head and injection unit, apparantly the cam is a very large one that was fitted by VW from new. Cheers.

Offline mk2mark

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Re: Bike carbs on a GTi???
« Reply #1 on: 16 January 2007, 23:29 »
For something like that you're gonna make up your own manifold. I wouldn't bother with carbs though, you're gonna have get the jets set up on a rolling road, by the time you'd be done you wouldn't be far off the price of bike throttle bodies and a megasquirt IMO.

Offline FirstMK2

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Re: Bike carbs on a GTi???
« Reply #2 on: 17 January 2007, 10:38 »
Thanks for that but I really am pretty clueless to all this, what are throttle bodies and squirters? Cheers, Alan.

Offline mk2mark

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Re: Bike carbs on a GTi???
« Reply #3 on: 17 January 2007, 13:47 »
Throttle bodies = fuel injection, megasquirt = ECU bsaically.

Offline mic

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Re: Bike carbs on a GTi???
« Reply #4 on: 17 January 2007, 16:42 »
for what its worth i was gonna twin carb a K series engine with motorbike carbs off a GSXF or something (forget which now) as they're 36/38 or 40mm...... anyway, i found a company who were gonna make me a manifold specially for them carbs to fit a K series for just under 200 quid, and something like 260ish quid if i sent them the carbs as they would strip/rebuild/rejet and send back ready to bolt on and use. so they say. but i didnt do it so dont know what theyre like but sounded nice on the phone. i might be able to dig out a telephone number if you want it?

Offline FirstMK2

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Re: Bike carbs on a GTi???
« Reply #5 on: 19 January 2007, 02:19 »
Cheers for your replys so far (I need all the help I can get!) The bike carb scenario seems like quite a lot of work so I think that idea can be put to the bottom of the pile (for now at least). I was led to believe that the throttle body could be changed for an audi quattro jobbie of approx. the same year as mine (1984), which would up the power, any idea of part numbers or the particular car/engine that would come off? Can you upgrade the ECU on a k-jetronic? I haven't seen one for sale...?

Offline monzablue16v

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Re: Bike carbs on a GTi???
« Reply #6 on: 19 January 2007, 18:34 »
K-Jet is a mechanical fuel injection system so no re mapping is available :( a good tune and rolling road session will probably help matters a fair bit failing that the best power increase on a 2l bottom end and 16v head would be a ported and polished head and a stainless steel manifold and exhaust to help it breathe a bit better. The injection is good for up to 200 bhp apparently so no worries on that front!

Probably got lost in the "Great Crash of 08

Offline FirstMK2

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Re: Bike carbs on a GTi???
« Reply #7 on: 20 January 2007, 11:39 »
Thanks for your post Monzablue. Are you saying that I could use a 16v head on my mk3 bottom end and still retain the k-jetronic system?