twin carbs or throttle bodies mk1 1.8 8v

[benji mk2]

So guess which smart arse just got him self a fancy new job?? Found out on Thursday and gonna be getting lots more cash 
As a result Ive decided to spend all my new found wealth on my baby!!  The engine work has begun: Full lighten and balance, bored out to 2ltr lots of head work and a sports R Kent camshaft. By big problem now is do i fit twin 40's, 45's or throttle bodies? My understanding is that throttle bodies although more expensive will be much more manageable. Does anyone have any thoughts/experience with either of these systems.

Cheers,

 Ben

[sportline_velly]

carbs are easier to fit and you will get great power and torque but very very low mpg!
i had twin 40's on my 16v , 170 bhp but only 20 mpg  :embarassed:

TB's are better but cost £Â£Ã‚£Ã‚£ a few people are looking at using bike TB's much cheaper but u need to make it all up yourself

2.0 is the way to go IMO..esp if  you go 16v too

[davidhawkins_78]

My understanding of throttle bodies is they are just that ... carb's control the flow of fuel and air but you'll still need some sort of injection / fuel system if u use throttle bodies.

No matter what us use the fuel consumption will increase funk loads as you'll be trying to force more air and fuel in - so for cost and support of your installation I'd say go twin 40 / 45's - more people will be able to set them up and the costs will be alot less, plus the power difference between the two at full throttle will be nominal

Hope this helps !

[Gambit]

itd be cheaper to source a 2.0 block than bore out your existing one

[benji mk2]

Cheers for all the input troops, still talking to suppliers and stuff.
With reference to the block its costing me sod all to have it bored so I'm not to fussed about it!  I've managed to find a really cheap but helpful engine re builder!
 If i was to fit the carbs what do i need to do with the injectors?

[davidhawkins_78]

Stick 'em in the bin and enjoy the glorious noise of Twin 45's singing !

The fuel is controlled by the carbs as I said, so you'll need to get the fuel line rigged up to the carbs. Has anyone mention to you what else you need for that setup ??

Things like a Facet Fuel Pump - Fuel Regulator - Throttle Linkage - Trumpets etc ??

I did this all to my previous car so feel free to ask any questions !

Dave.

[mix]

Twin 45's, Twin 45's, Twin 45's, Twin 45's, Twin 45's,

Need i say more???

[Chris Green]

Carbs would be easier, but I would very much prefer throttle bodies. (I haven't built a system myself yet, but I will be at some point for me XE engine).

I have studied the "Practicle Performance Car" article on TB's, and have read loads of stuff about megasquirt, and such like.

I would assess the costs of TB's and a management such as Megasquirt 'n' EDIS for instance, and decide for yourself. No doubt TB's will be more managable, and a lot more efficient (apparently).

Some links to help you decide (All TB Based)...


http://www.megasquirt.co.uk/

http://picasso.org/mjlj/index.jsp

http://www.msefi.com/

http://www.jenvey.co.uk/

http://www.emeraldm3d.com/em_pricing.html

[benji mk2]

Yeah I'm thinking the carbs may be the best way to go, i really like the idea of throttle bodies and the fact that they need very little attention once up and running (and no dizzy). But the bug@ers ain't exactly cheap, however they do give better mpg. Just spoke to very helpful guy at badger five but i'll be looking at well over 2K! Cheers for the addresses chris i'll have a look now.

David, how did you get on with the carbs?? How much hassle and how often did they need tweaking? I've got a pretty good idea of every thing i would need. Where did you get yours from?

Been told that dhla will be better in town than dcoe, any thoughts anyone?

TA

[Gambit]

are you get the new pistons for your rebored block free also?