Board logo

Pinto Induction
scootz - 9/10/09 at 11:10 AM

I've noticed that some Pinto's run Carbs vertically (90 degree bend in the inlet manifold)... does this cause a problem if the car is caught standing in pouring rain? I'm guessing water will get through to the carbs if using a foam filter???

nick205 - 9/10/09 at 11:15 AM

They would be Weber IDF carbs I think. Basically DCOE carbs mounted vertically. Not that common I don't think for road cars. IIRC they were used on some formula cars that used the Pinto.

I guess some form of horizontal air filter would negate the rain issue?

nick205 - 9/10/09 at 11:16 AM

Like this...



I thnik they may also be used on Beetle and other flat engines too.

scootz - 9/10/09 at 11:20 AM

That's the fellows! Any idea what the pro's / con's are against standard side facing carbs?

Mr Whippy - 9/10/09 at 11:23 AM

simple answer is yes if water gets in it will cause havoc, I've already had to change one cylinder (replaceable on a bug engine) on my beach buggy due to this. One solution is to fit upside down tubs over the filters.

omega0684 - 9/10/09 at 11:26 AM

don't know about the performance figures, but could you imagine those sticking out of the bonnet of a 7 style car, i think it would look awful!

Mr Whippy - 9/10/09 at 11:27 AM

quote:
Originally posted by scootz
That's the fellows! Any idea what the pro's / con's are against standard side facing carbs?


Main ones are - normally longer intake manifold, harder to fit in an engine bay (unless its a beetle or porsche), much higher risk of carb icing due to the increased distance from the cylinder head & they tend to sway far more when the engine moves in the mounts

scootz - 9/10/09 at 11:28 AM

quote:
Originally posted by nick205
I guess some form of horizontal air filter would negate the rain issue?


Like these K&N jobbies?

[img][/img]

scootz - 9/10/09 at 11:30 AM

So the general consensus is... AVOID!

Mr Whippy - 9/10/09 at 11:37 AM

quote:
Originally posted by scootz
quote:
Originally posted by nick205
I guess some form of horizontal air filter would negate the rain issue?


Like these K&N jobbies?

Image deleted by owner


with those you need to drill a hole into the top of the carb so the rain will not collect inside the filter (up to around 10mm deep) and then be sucked into the engine when you start up.



[Edited on 9/10/09 by Mr Whippy]

geoffxt - 9/10/09 at 12:07 PM

I had one of these K&N filters protruding through the bonnet of a Dutton that I used to own. It was fitted to a 32/36 DG something or other carb. fitted to a 2 litre pinto. I never experienced any problems with water ingress or freezing. The filters are cleaned and coated in the proper oil (if looked after!) and I wonder whether 'It is it like water off of the duck's back?'
PS I do have a brand new 42DCNF twin choke downdraft Weber carb which will fit Pinto 2.0l manifolds. Bigger and better than the 38DGAS. Anyone interested? I'm willing to sell or swap. w.h.y.?
[Edited on 9/10/09 by geoffxt]

[Edited on 9/10/09 by geoffxt]

Mr Whippy - 9/10/09 at 02:10 PM

^ does very much depend on just what the weather was like when you used it

RAYLEE29 - 9/10/09 at 02:40 PM

there was a set on the bay the other day v expensive
bike carbs are the way to go with dcoes sooo expensive these days
this is locost builders after all not throwloadsamoneyatit.com
lol
Ray

scootz - 9/10/09 at 03:03 PM

Sure, Injection is great, but if you go bike TB's you're then adding a high pressure fuel pump, filter, regulator, swirl pot and ecu. Then you have your manifold costs, TB costs and set-up costs.

Much cheaper and much more straightforward to just plug in a pair of 45's!

RAYLEE29 - 9/10/09 at 03:54 PM

i did say bike carbs not tbs
have you actually seen the price of a full set up for 45 dcoes around a grand
bike carbs can be had for £50 make a manifold you dont need anything special for a pump standard one will do you dont need a swirl pot
do you work for weber or are you just on a wind up? yes injection is nice and you could still do it far cheaper than a set of webers
Ray

[Edited on 9/10/09 by RAYLEE29]

big_wasa - 9/10/09 at 04:26 PM

You want a nice zetec so I can sell you a Dunnell clubmans setup so I can go injection

scootz - 9/10/09 at 04:52 PM

quote:
Originally posted by RAYLEE29
i did say bike carbs not tbs


Ah... yes, erm... glad you spotted my deliberate mistake

Sorry - thought you were meaning bike TB's... no idea where I got that from mind you! Just one of those days I guess!

quote:
Originally posted by RAYLEE29
yes injection is nice and you could still do it far cheaper than a set of webers
Ray


I'd be interested to see where you can get a comparative injection kit with all the necessary ancillaries (bike derivative or otherwise) for less than the cost of a 45 set up. Even assuming you have no Carb bits to hand (unlikely if you started with a Carb engine), you can get a full second hand kit for £350-ish and a shiny new kit with everything for £800-ish.

But anyway, what bike Carbs do you recommend... early Busa / Blackbird???

Cheers

snapper - 11/10/09 at 05:21 AM

IDA 40's used on some Rally Race 2000 Pinto Escorts 1973/4, used by AVO to clear either the battery or the brake servo both of which were front right and left of the engine bay, later the battery was moved to the boot giving more space in the engine bay.

The Escort downdrafts used a shorter inlet manifold than the one shown in the earlier photo with the top of the carbs level with the top of the rocker cover (just the carbs without trumpets)

stevebubs - 11/10/09 at 07:28 AM

quote:
Originally posted by scootz
quote:
Originally posted by RAYLEE29
i did say bike carbs not tbs


Ah... yes, erm... glad you spotted my deliberate mistake

Sorry - thought you were meaning bike TB's... no idea where I got that from mind you! Just one of those days I guess!

quote:
Originally posted by RAYLEE29
yes injection is nice and you could still do it far cheaper than a set of webers
Ray


I'd be interested to see where you can get a comparative injection kit with all the necessary ancillaries (bike derivative or otherwise) for less than the cost of a 45 set up. Even assuming you have no Carb bits to hand (unlikely if you started with a Carb engine), you can get a full second hand kit for £350-ish and a shiny new kit with everything for £800-ish.

But anyway, what bike Carbs do you recommend... early Busa / Blackbird???

Cheers


Megasquirt - £200
TBs - £75 (I paid £40 including shipping for mine)
Jenvey Fuel Rail (if respacing to DCOE standards) £50

All you then need are:
- Manifold (if you respace then a DCOE one works)
- Fuel Pump

[Edited on 11/10/09 by stevebubs]

scootz - 11/10/09 at 09:07 AM

So, assuming that a manifold and high pressure fuel pump will cost more than £25, then I'm right!