New owner / member seeking advice again......deleted my post by mistake

[DaveTheGardner]

Yeh so I managed to delete my post, apologies to those who replied.......

So to summarise:

Just bought a 2009 built SEI running a 2.0 pinto on 45s. Doesn't seem as quick as my expectations

No filters on the carbs and they are quite close to the hood when closed, and therefore I think sucking in hot air......

Do I?:

Cut holes in the side and fit longer trumpets with foam filters sticking out?

Same as above but use K&Ns?

Add more ventilation holes towards the rear of the hood?

Again thanks to those replies previously, any help much appreciated

David

[Lyonspride]

Bonnet hole, then fit filters of choice.

 

So silly to not run filters, not with the damage that even small dust particles can do to the valves seats.

There was a recent post where someone had cut a large bonnet hole, over in the tech talk forum.

 

http://forum.wscc.co.uk/forum/index.php/topic/114433-recommendation-for-fitting-vent/

[DaveTheGardner]

That's great, many thanks for coming back to me. I have already bought some foam filters which I will now as a matter of urgency stick on anyway then look at getting a whole sorted.

Thanks for the link, very useful and much appreciated

DG

[mikef]

I've got thin K & N filters on mine so no need for bonnet hole.  They work fine.

[Man On The Clapham Omnibus]

Trumpet length affects performance characteristics, but I cannot remember the rules of thumb. Choke sizes, jetting, ignition timing - all need to be correct for optimum performance. There's a lot of information in these forums - the search function is quirky but it may help. I'd tell you my settings if I could find the file...

[DaveTheGardner]

Thanks so much for your help folks, much appreciated.

[alexander72]

Dave,  good luck with the filter fix - if it still aint quick enough give it more right foot :-) 

[Lyonspride]

Trumpet length affects performance characteristics, but I cannot remember the rules of thumb. Choke sizes, jetting, ignition timing - all need to be correct for optimum performance. There's a lot of information in these forums - the search function is quirky but it may help. I'd tell you my settings if I could find the file...

 

From what I remember, the shorter the trumpets the less low down torque.

[DaveTheGardner]

Apologies for the late reply, many thanks for that info. The trumpets on it at present are maybe 10mm and that's being generous. Had a proper run at the weekend and as it gets hotter, definitely doesn't run as well as cold.

[corsechris]

The important figure is trumpet bellmouth to valve, so you may actually have an OK setup depending on how long the inlet manifold runner length is. Having a long inlet runner and short trumpet that puts the carb near the outside world does tend to give you worse problems with 'stand-off' where a mist of fuel is created outside the trumpet.

 

For sure, cold air in if you can arrange it.

[peet]

I have 45s on a pinto my trumpets are 60mm and I have a filter hole. Pulls like a train!

[DaveTheGardner]

[silky13]

Lets see a pic of your motor, I'm interested to see if you bought one I was looking at! Description of SEI, Pinto engined with carbs and no filters sounds a lot like a yellow one I looked at in Perth! 

[DaveTheGardner]

Silky13 - sounds very like the one! Bought it from Revolutions in Perth

IMG

[DaveTheGardner]