45s or bike carbs

[Guest cortinamad-gonetoo]

which should i put on my pinto

[Wessie]

daily driver? what do you want to use the car for? fast road use? track days? current enginE spec? what other mods have you got planned for the engine? etc

[Guest cortinamad-gonetoo]

will be on a 2.0 pinto with big valve head polished and either mild or fast road cam lightened flywheel maybe bore it to 2.1

 

and yes daily driver so fast road and quauter mile

[Copey]

45's anyday

[Guest cortinamad-gonetoo]

it would be great if you gave the reasons to your choice too

 

help me decide

[Arched Escy]

Bike carbs will give slightly less performance but will be worth it with economy.

[Guest cortinamad-gonetoo]

Bike carbs will give slightly less performance but will be worth it with economy.

 

really im suprissed with that

[lee_capri]

if you want economy you will leave it alone i my self would go for the 45s as engough people no about these as are common use bike carbs o.k are the same sort or thing but what would you rather play with something u no that y 45s are in if you want more go 48s, not only that you can get a lot of good weber stuff second hand and save a fortune

[johnno11]

If it's a daily driver, bike carbs are a good option. Just fitted a set of YZF1000 41mm to my 2ltr pinto on a Bogg bros manifold. Haven't had it rolling roaded yet but first impressions are silky smooth running at all revs, at all times. I'm looking forward to seeing a power figure on the dyno.

[Gonzo]

I woulda voted bike carbs but then you'd end up buying shitty CV carbs and I loathe them with a passion.

 

If you want some proper bike carbs look for keihin fcr's or mikuni rs flatslides.

they cost a fair bit but you can't beat 'em on throttle response.

 

hows this for a taster: bog stock toyota 1600 4age motor, standard output about 120bhp.

junk the fuel injection, bolt on a set of 41mm keihin fcr's, set em up, you now have 170bhp...

[sambo]

45's. full stop. All this playing around with bike carbs isnt really proven. Is it?? Well, 45 side draught carbs are the daddies and look better than bike carbs too

[mart @ fpe]

my mate has just put bike carbs on his zetec lump they are so much better than the 40's he had on it before it runs so much smother sounds alot better as well cant comment on the performance as he hasnt given it any beans yet as hes waiting on getting it maped

little vid

http://uk.youtube.com/watch?v=W4TBzdfoIIY

[Vista]

45's, why? Well because I subscribe to the school of "If it aint broke, don't fix it!" Webers and Dellortos have been propelling classic Ford engines to good power figures for many years. They work, they work well and there is plenty of support around for them in terms of spares and tuning specialists.

 

Bike carbs may also work, but finding people to get the package running well for you is not so easy, nor will there be the range of jets etc available for them that webers/dellortos have.

 

My opinion? Bike carbs may indeed work and give benefits in some areas but as an all round package you're still better off with proper carbs. I reckon the current bike carb fad will pass, much like the current craze is for deep dish steels and that too will likely eventually fade.

[Guest MK1gaz]

45's anyday . My reasons are = proven power and reliablity , sound better , cheap to tune and fix at any rolling road , can always be sold later for what you paid for them in the first place

[FlashCadillac]

what are the main differences???

 

apart from ones off a bike and the other isnt

[alladdin]

there are only 2 reasons to fit bike carbs.

1, you want to be different just cos you can.

2, you cant afford webers. this is the only reason bike carbs have become popular.

nothing wrong with CORRECTLY SET UP bike carbs but if i could afford webers then i would choose the proven route.

[johnno11]

Wow. I feel like a Johnny cum lately Fad follower now. I wish my bike carb conversion had been cheap, but I'm well into £350ish now with filters and manifold etc.

[Guest cortinamad-gonetoo]

Wow. I feel like a Johnny cum lately Fad follower now. I wish my bike carb conversion had been cheap, but I'm well into £350ish now with filters and manifold etc.

 

dont worry thats what i thought theyd cost i dont think theyre cheap

[lee_capri]

johnno11 wrote:

Wow. I feel like a Johnny cum lately Fad follower now. I wish my bike carb conversion had been cheap, but I'm well into £350ish now with filters and manifold etc.

 

 

i dont see how thats dear you can easy spend that on a set of second hand webbers last set i brought were nearly new and i give the £300 for them and i brought cheaper sets and have had to get the rest to make them work which all adds up, bu tat the end of the day you get what you pay for.

[Gonzo]

Bike carbs may also work, but finding people to get the package running well for you is not so easy, nor will there be the range of jets etc available for them that webers/dellortos have.

 

It depends what type of bike carbs you buy. If you buy the standard fitment CV shite that most carb'd bikes came with, yes, you're limited on jets because they're meant to be set and forgot.

 

However, if you buy some pukka racing carbs like the ones I mentioned, the range of jets is f*cking phenomenal!

only trouble is, they dont come up second hand too often because people really don't want to part with them. that and they cost about as much as webers.

[Vista]

only trouble is, they dont come up second hand too often because people really don't want to part with them. that and they cost about as much as webers.

 

So you've just negated many peoples reason for buying them in the first place?

 

If decent bike carbs are just as expensive as webers, then why not just buy webers?

[Fiesta Steve]

Well, that just goes to show that you may be able to pick them up on ebay for 99p but getting them on and running isn't so cheap.

 

Weber's for me anyday

[Guest cortinamad-gonetoo]

cheers guys i think i"ll go for the 45s

 

thanks for your oppinions it helps having other peoples thoughts too

 

keep them coming though

[ExotronGammaPlusSequencer]

Bear in mind that some "standard equipment cv shite" carbs can take weber jets anyway.Yes they may have to be redrilled to get perfect fuelling,but i thought due to the large gap between jet sizes this was the case with DCOEs anyway if you want to get optimum fuelling?

 

As for being expensive to get running it all depends how you go about things sureley?Ive read a few cases elsewhere where people have done there own bike carb conversion for next to nothing with no problems,on the other hand i know of 3 recently built engines-2 pintos & one crossflow that were fitted with base jetted webers & all 3 of them have run like complete dogs without having a fortune spent getting them set up-so it works both ways.

 

I got my bike carbs as a complete kit ready to fit for the same price as a 2nd hand set of 45s & for that money the 45s would probably need a rebuild too..... Mine were base jetted & just need final setting up on a RR-the same as if id have bought a set of webers/dellortos,ive not got round to this though as mine ran ok straight out of the box.

Agreed,it might be difficult finding someone who can set them up but last time i was at Sanspeed he said he was getting a few cars in with bike carbs now & would be able to set mine up so no probs for me there!

 

I notice the people who have said positive things about bike carbs in this thread & elsewhere are people that have actually used them,as much as i love webers & dellortos(& ive had a few sets over the years!) i cant remember a set that drove as smoothly as my bike carbs. Ultimateley its your decision-i would have thought on that particular spec engine a twin choke weber would have been enough.

 

 

 

Oh while im here,

the current craze is for deep dish steels and that too will likely eventually fade.

are you serious Vista people have been fitting deep steels forever mate-its hardly a craze

 

 

 

 

 

 

 

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[Guest cortinamad-gonetoo]

now thats some statement

 

so which do i go for

 

 

i want good pickup performance and to squeeze as much bhp out as i can with the mods stated

 

why will a twin weber be good enough surley 45s or bike carbs will give it a bit more

 

 

what mods do i need to do before i really do need these carbs???????????

 

im already planning big valve head ported ands polished 421 single box exhaust a cam prob mild road lightened and balanced flywheel bore out to 2.1